Endangered and Threatened Wildlife and Plants; Final Rule To List Eleven Distinct Population Segments of the Green Sea Turtle (Chelonia mydas) as Endangered or Threatened and Revision of Current Listings Under the Endangered Species Act, 20057-20090 [2016-07587]
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Vol. 81
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Part II
Department of the Interior
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50 CFR Part 17
Department of Commerce
National Oceanic and Atmospheric Administration
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50 CFR Parts 223 and 224
Endangered and Threatened Wildlife and Plants; Final Rule To List Eleven
Distinct Population Segments of the Green Sea Turtle (Chelonia mydas) as
Endangered or Threatened and Revision of Current Listings Under the
Endangered Species Act; Final Rule
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or Ann Marie Lauritsen, USFWS (ph.
904–731–3032, email annmarie_
lauritsen@fws.gov). Persons who use a
Telecommunications Device for the Deaf
(TDD) may call the Federal Information
Relay Service (FIRS) at 1–800–877–
8339, 24 hours a day, and 7 days a
week.
DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric
Administration
SUPPLEMENTARY INFORMATION:
Background
50 CFR Parts 223 and 224
[Docket No. 120425024–6232–06]
RIN 0648–XB089
Endangered and Threatened Wildlife
and Plants; Final Rule To List Eleven
Distinct Population Segments of the
Green Sea Turtle (Chelonia mydas) as
Endangered or Threatened and
Revision of Current Listings Under the
Endangered Species Act
National Marine Fisheries
Service (NMFS), National Oceanic and
Atmospheric Administration (NOAA),
Commerce; United States Fish and
Wildlife Service (USFWS), Interior.
ACTION: Final rule.
AGENCY:
NMFS and USFWS issue a
final rule to list 11 distinct population
segments (DPSs) of the green sea turtle
(Chelonia mydas; hereafter referred to as
the green turtle) under the Endangered
Species Act (ESA). Based on the best
available scientific and commercial
data, and after considering comments on
the proposed rule, we have determined
that three DPSs are endangered species
and eight DPSs are threatened species.
This rule supersedes the 1978 final
listing rule for green turtles. It applies
the existing protective regulations to the
DPSs. Critical habitat is not
determinable at this time but will be
proposed in a future rulemaking. In the
interim, the existing critical habitat
designation (i.e., waters surrounding
Culebra Island, Puerto Rico) remains in
effect for the North Atlantic DPS.
DATES: This final rule is effective May 6,
2016.
ADDRESSES: Office of Protected
Resources, National Marine Fisheries
Service, 1315 East-West Highway, Room
13535, Silver Spring, MD 20910; or U.S.
Fish and Wildlife Service, North Florida
Ecological Services Office, 7915
Baymeadows Way, Suite 200,
Jacksonville, FL 32256. The final rule,
list of references, and other materials
relating to this determination can be
found at: https://www.nmfs.noaa.gov/pr/
species/turtles/green.htm.
FOR FURTHER INFORMATION CONTACT:
Jennifer Schultz, NMFS (ph. 301–427–
8443, email jennifer.schultz@noaa.gov),
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SUMMARY:
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On July 28, 1978, NMFS and USFWS,
collectively referred to as the Services,
listed the green turtle under the ESA (43
FR 32800). Pursuant to the authority
that the statute provided, and prior to
the current statutory definition of
‘‘species’’ that includes DPSs, we listed
the species as threatened, except for the
Florida and Mexican Pacific coast
breeding populations, which we listed
as endangered. We published recovery
plans for U.S. Atlantic (NMFS and
USFWS, 1991) and U.S. Pacific
(including the East Pacific; 63 FR 28359,
May 22, 1998; NMFS and USFWS, 1998)
populations of the green turtle (https://
www.nmfs.noaa.gov/pr/recovery/
plans.htm). NMFS designated critical
habitat for the species to include waters
surrounding Culebra Island, Puerto
Rico, and its outlying keys (63 FR
46693, September 2, 1998).
On February 16, 2012, we received a
petition from the Association of
Hawaiian Civic Clubs to identify the
Hawaiian green turtle population as a
DPS and ‘‘delist’’ it. On August 1, 2012,
NMFS, with USFWS concurrence,
determined that the petition presented
substantial information indicating that
the petitioned action may be warranted
(77 FR 45571). Our 5-year review
(NMFS and USFWS, 2007) also
recommended a review of the status of
the species, in light of significant new
information since its listing and in
accordance with our DPS joint policy
(61 FR 4722, February 7, 1996). We
convened a Status Review Team, green
turtle and ESA experts within the
Services, who conducted a
comprehensive status review of the
species and published their findings as
the ‘‘Status Review of the Green Turtle
(Chelonia mydas) under the Endangered
Species Act’’ (Seminoff et al., 2015;
hereafter referred to as the Status
Review Report and available at https://
www.nmfs.noaa.gov/pr/species/
Status%20Reviews/green_turtle_sr_
2015.pdf). The Status Review Report
was peer-reviewed by 15 independent
scientists with expertise in green turtle
biology, genetics, endangered species
policy, or related fields. We used the
Status Review Report and additional
information, which together provided
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the best available scientific and
commercial data, to make our listing
determinations.
On March 23, 2015, we published the
12-month finding on the petition and
proposed rule (80 FR 15271). We
proposed to remove the existing ESA
listings from 1978 and, in their place,
list three endangered (Mediterranean,
Central West Pacific, and Central South
Pacific) and eight threatened (North
Atlantic, South Atlantic, Southwest
Indian, North Indian, East Indian-West
Pacific, Southwest Pacific, Central
North Pacific, and East Pacific) DPSs.
We opened a 90-day comment period on
the proposed rule and extended this
comment period three times until
September 25, 2015, for a total of 187
days (i.e., just over 6 months).
Listing Determinations Under the ESA
Section 4(a)(1) of the ESA requires us
to determine by regulation whether
‘‘any species is an endangered species
or a threatened species because of any
of the following factors: (A) The present
or threatened destruction, modification,
or curtailment of its habitat or range; (B)
overutilization for commercial,
recreational, scientific, or educational
purposes; (C) disease or predation; (D)
the inadequacy of existing regulatory
mechanisms; or (E) other natural or
manmade factors affecting its continued
existence’’ (16 U.S.C. 1533(a)(1);
hereafter, the section 4(a)(1) factors).
Section 3 of the ESA defines a ‘‘species’’
as ‘‘any subspecies of fish or wildlife or
plants, and any DPS of any species of
vertebrate fish or wildlife which
interbreeds when mature’’ (16 U.S.C.
1532(16)). Section 3 of the ESA further
defines an ‘‘endangered species’’ as
‘‘any species which is in danger of
extinction throughout all or a significant
portion of its range’’ and a ‘‘threatened
species’’ as one ‘‘which is likely to
become an endangered species within
the foreseeable future throughout all or
a significant portion of its range’’ (16
U.S.C. 1532(6), (20)). The U.S. District
Court for the District of Columbia noted
that Congress included ‘‘a temporal
element to the distinction between the
categories of endangered and threatened
species.’’ In Re Polar Bear Endangered
Species Act Listing and § 4(d) Rule
Litigation, 794 F. Supp.2d 65, 89 n. 27.
(D.D.C. 2011). Thus, we interpretlan
‘‘endangered species’’ to be one that is
presently in danger of extinction. A
‘‘threatened species,’’ on the other hand,
is not presently in danger of extinction,
but is likely to become so within the
foreseeable future (i.e., at a later time).
In other words, the primary statutory
difference between a threatened and
endangered species is the timing of
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when a species may be in danger of
extinction, either presently
(endangered) or within the foreseeable
future (threatened). As we explained in
the proposed rule, the foreseeable future
applied in a particular listing
determination must take into account
the life history of the species, habitat
characteristics, availability of data,
particular threats under consideration,
the ability to predict those threats, and
the reliability of forecasts of changes in
the species’ status in response to the
threats. See also ‘‘The Meaning of
‘Foreseeable Future’ in Section 3(20) of
the Endangered Species Act,’’ (M–
37021, U.S. Department of the Interior,
Office of the Solicitor, January 16,
2009).
The ESA does not define ‘‘distinct
population segment,’’ but our 1996 joint
policy identifies three elements that
must be considered when identifying a
DPS: (1) The discreteness of the
population segment in relation to the
remainder of the species to which it
belongs; (2) the significance of the
population segment to the species to
which it belongs; and (3) the population
segment’s conservation status (i.e.,
endangered or threatened; 61 FR 4722,
February 7, 1996). Section 4(c)(1) of the
ESA requires us to revise the lists of
threatened and endangered species to
reflect recent determinations to list,
remove, or change the status of a species
(16 U.S.C. 1533(c)(1)). Section 4(b)(1)(A)
requires us to make such determinations
‘‘solely on the basis of the best scientific
and commercial data available . . . after
conducting a review of the status of the
species’’ and after considering
conservation efforts (16 U.S.C.
1533(b)(1)(A)). This can be thought of as
consisting of two steps: The status
review and the listing determinations.
As we described more fully in the
proposed rule, to identify potential
DPSs, the Status Review Team members
gathered the best available scientific and
commercial data on green turtles. They
evaluated the discreteness and
significance of population segments. For
each potential DPS, they described the
demographic parameters that influence
population persistence (i.e., abundance,
growth rate or trend, spatial structure or
connectivity, and diversity or resilience;
McElhany et al., 2000) and analyzed the
section 4(a)(1) factors (16 U.S.C.
1533(a)(1)). For their analyses, the
Status Review Team used a foreseeable
future of 100 years, which represents
approximately three generations of
green turtles and is often used for
projections of extinction risk in recovery
plans and status reviews for long-lived
species, such as whales and sea turtles
(Angliss et al., 2002; NMFS, 2005, 2010,
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2011; Conant et al., 2009; Seminoff et
al., 2015). To assess extinction risk, the
Status Review Team used a critical risk
threshold (i.e., quasi-extinction), which
they defined as being met where a DPS,
‘‘has such low abundance, declining
trends, limited distribution or diversity,
and/or significant threats (untempered
by significant conservation efforts) that
the DPS would be at very high risk of
extinction with little chance for
recovery’’ (Seminoff et al., 2015). The
Status Review Team did not consider
the potential loss of ESA protections
(i.e., potential determination not to list
a DPS) in their analyses. They
incorporated all information and
analyses into the Status Review Report.
We reviewed the Status Review
Report and concluded that it provided
the best available scientific and
commercial data on the identification of
DPSs, demographic parameters, and
section 4(a)(1) factors, with two
exceptions. First, in evaluating the
extinction risk of a DPS, we cannot
assume the retention of ESA
protections, which would no longer
apply if a DPS was not listed under the
ESA. Second, the critical risk threshold
(i.e., quasi-extinction) does not directly
correlate with the ESA definitions of
‘‘endangered’’ and ‘‘threatened’’ because
it requires a condition worse than
endangered (i.e., ‘‘very high risk of
extinction’’) and essentially precludes
recovery (i.e., ‘‘little chance for
recovery’’). The latter is contrary to the
fundamental purpose of the ESA, which
is to conserve threatened and
endangered species. Section 3 of the
ESA defines conservation as ‘‘to use and
the use of all methods and procedures
which are necessary to bring any
endangered species or threatened
species to the point at which the
measures provided pursuant to [the
ESA] are no longer necessary’’ (16
U.S.C. 1532); our implementing
regulations add ‘‘i.e., the species is
recovered’’ (50 CFR 424.02). Therefore,
we did not use the critical risk threshold
to make our listing determinations.
To make the listing determinations,
we used the best available scientific and
commercial data on the green turtle,
which are summarized in the Status
Review Report and incorporated herein.
We applied information from the Status
Review Report on the identification of
DPSs, demographic parameters, and
section 4(a)(1) factors, but we did not
apply the critical risk threshold. Instead,
we directly evaluated the section 4(a)(1)
factors in the context of the
demographic parameters and considered
the potential loss of ESA protections
that would result if we did not list a
DPS as threatened or endangered under
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the ESA. After considering conservation
efforts by States and foreign nations to
protect the DPS, as required under
section 4(b)(1)(A), we proposed listing
determinations based on the statutory
definitions of endangered and
threatened species (80 FR 15271, March
23, 2015). To make our final listing
determinations, we reviewed all
information provided during the 6month public comment period and
additional scientific and commercial
data that became available since the
publication of the proposed rule.
However, this additional information
merely supplemented, and did not differ
significantly from, the information
presented in the proposed rule. We
received no significant new information
that would cause us to change our
listing determinations. With this rule,
we finalize our proposed listing
determinations.
Summary of Comments
We solicited comments on the
proposed rule from all interested parties
(80 FR 15271, March 23, 2015).
Specifically, we requested information
regarding: (1) Historical and current
population status and trends; (2)
historical and current distribution; (3)
migratory movements and behavior; (4)
genetic population structure; (5) current
or planned activities that may adversely
affect green turtles; (6) conservation
efforts to protect green turtles; and (7)
our extinction risk analysis and
findings. We considered all comments
received, which included 905 comments
from the public, government agencies,
the scientific community, industry, and
environmental organizations. The
majority of comments (over 800)
expressed support for the proposed
listings. Some commenters requested
that all DPSs be listed as endangered,
and some commenters disagreed with
the proposed status of one or more
DPSs. We summarize all comments
below by first addressing topics that
apply to multiple DPSs; we then address
comments specific to a particular DPS.
Comments on Topics That Apply to
Multiple DPSs
Comment 1: We received several
comments regarding public engagement.
We received several requests for public
hearings in Hawaii, Guam, the
Commonwealth of the Northern Mariana
Islands (CNMI), and American Samoa.
One commenter stated that there has
been inadequate public engagement.
Response: We held public hearings in
Hawaii, Guam, CNMI, and American
Samoa, exceeding our regulatory
obligation of holding at least one public
hearing (50 CFR 424.16(c)(1)). Further,
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we encouraged maximum public
participation by extending the 90-day
public comment period three times, for
a total of 6 months. We made all
relevant information (both as to the
substance of the proposed rule and
opportunities for public participation)
available on our Web pages, notified the
petitioner via phone and email,
provided informational meetings via
internet and telephone (i.e.,
‘‘webinars’’), and addressed questions
on the proposed rule via phone and
email. We have thus facilitated
considerable public engagement, which
has been sufficient to inform our final
determinations.
Comment 2: We received several
comments on our approach for
identifying DPSs. One commenter stated
that while the DPS concept started
under the ESA, it is now used generally
in the scientific literature. The
commenter also asked whether
alternatives were considered, such as
combining the North and South Atlantic
DPSs and combining Indian Ocean
DPSs, for ease of application of the ESA.
Two commenters requested a discussion
of the potential limitations of
mitochondrial DNA (mtDNA) for
identifying DPSs, including limited
sequencing information, maternal
inheritance, and neutral genetic
diversity. One commenter requested
clarification on our evaluation of genetic
population structure at nesting sites,
and one commenter asked where green
turtles mate. One commenter agreed
with the designations, stating that the
designation of DPSs has little potential
for negative consequences, whereas the
over-generalized species listing will
continue to yield non-individualized
conservation methods and runs the risk
of greater population losses. One
commenter provided additional
scientific information in support of the
DPSs; the commenter stated that the
DPSs may require reevaluation in the
future as new information becomes
available.
Response: For a detailed explanation
of the application of our DPS policy to
the green turtle, please see the Status
Review Report and proposed rule. We
provide a short summary in the
previous section entitled, Listing
Determinations under the ESA.
Though the term ‘‘distinct population
segment’’ may be used generally in the
scientific literature, our use of the term
throughout the proposed and final rules
refers to the legal term, ‘‘distinct
population segment,’’ as used
specifically in the statute and our
binding policy, which we promulgated
after reviewing public comment (16
U.S.C. 1532 (16); 61 FR 4722, February
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7, 1996). The Status Review Team
considered other potential DPSs,
including 17 regional management units
identified by Wallace et al. (2010);
however, the criteria for those
management units differed from those
outlined under our DPS policy (61 FR
4722, February 7, 1996). We did not
combine or separate DPSs to facilitate
application of the ESA because we
concluded it was more important to
retain a consistent approach to all DPSs.
We agree that the identification of DPSs
will allow us to provide the most
appropriate and effective conservation
strategy for each DPS; however,
Congress instructs us to exercise our
authority with regard to DPSs
‘‘sparingly and only when the biological
evidence indicates that such action is
warranted’’ (S. Rept. 96–151 (1979)).
Our DPS policy requires a DPS be
‘‘discrete’’ and ‘‘significant’’ (61 FR
4722, February 7, 1996). To evaluate
discreteness, the Status Review Team
considered tagging and telemetry,
morphology, oceanographic and
ecological features, and genetic data.
The genetic data included previously
published studies of biparentally
(nuclear DNA) and maternally (mtDNA)
inherited neutral genetic markers
(Seminoff et al., 2015). In addition, the
Status Review Team considered a global
phylogenetic analysis based on nearly
400 base pairs of mtDNA sequence data
from approximately 4,400 turtles
sampled at 105 nesting sites (Jensen and
Dutton, NMFS, unpublished data; M.
Jensen, National Research Council
(NRC), pers. comm., 2013). Samples
collected at nesting sites provided the
best available data due to plenitude (i.e.,
samples are often collected during
nesting site surveys) and relevance, i.e.,
the species is somewhat organized
around these sites, with females (and to
a lesser extent males) returning to the
waters off their natal beaches to mate
(Balazs, 1980; Dizon and Balazs, 1982;
Bowen et al., 1992; Karl et al., 1992).
Though mtDNA data do not reflect
male-mediated gene flow, and
additional sequencing may provide
increased resolution in some cases (e.g.,
Dutton et al., 2014b), they remain the
best available scientific data to detect
marked genetic separation (i.e.,
discreteness) among population
segments throughout the range of the
species.
The Status Review Team also
considered the significance of the
population segment to the species. Each
DPS was determined to be significant
because of its unique ecological setting
or because its loss would result in a
significant gap in the range of the
species. In addition, some DPSs differed
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markedly from others in their genetic
characteristics, likely due to exposure to
different selective pressures and
generations of reproductive isolation.
We reviewed, considered, and
incorporated as appropriate scientific
and commercial data that were not
previously included in the Status
Review Report or proposed rule;
however, this additional information
did not change our identification of any
DPS. Scientific or commercial data that
become available after the publication of
this rule will be reviewed at a later date
as appropriate (e.g., during a 5-year
review).
Comment 3: We received several
comments regarding the general process
for making our listing determinations.
One commenter asked why some DPSs
were proposed to be listed as
endangered and others as threatened.
Some commenters stated that DPSs
should be delisted or listed as
threatened (rather than endangered) to
reward conservation efforts. Several
commenters asked why we did not use
the population viability analyses (PVAs)
or critical risk threshold from the Status
Review Report. One commenter stated
that the listing determinations must be
based on the best available science,
including the information provided in
the Status Review Report and any
additional information available. One
commenter inquired about our approach
to uncertainty when making our listing
determinations.
Response: Please see the previous
section entitled, Listing Determinations
under the ESA, which describes the
listing process, the difference between
endangered and threatened species, the
sources of the best available data, and
the reasons that we did not apply the
critical risk threshold. Regarding the
comment that DPSs should be delisted
or listed as threatened to reward
conservation efforts, the ESA requires us
to base our listing determinations solely
on the best available scientific and
commercial data, after taking into
account efforts to protect species (16
U.S.C. 1533(b)(1)(A)). We review
conservation efforts, as required under
the statute, to determine whether they
will be implemented and effective in
ameliorating threats to the species.
While the existence of such efforts can
avoid the need for an ESA listing, that
determination is based on whether the
best available data allow us to conclude
that those efforts improve the status of
the species, not on whether a party
should be ‘‘rewarded’’ for their efforts.
We used information from the Status
Review Report on the demographic
parameters and section 4(a)(1) factors to
make our listing determinations. The
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Status Review Team used PVAs as one
component in the consideration of
population trends (i.e., one of the
demographic parameters). They
performed PVAs on nesting sites if
adequate data were available; therefore,
the results did not apply to the entire
DPS, and PVAs were not available for
all DPSs. The required assumptions of
the PVAs (i.e., constant environmental
and anthropogenic pressures) are not
likely to be met. The PVAs did not
incorporate the section 4(a)(1) factors,
including climate change, or the
potential loss of ESA protections. For
these reasons, we did not base our
listing determinations on the PVAs;
however, we included the PVAs as one
measure of trends when considering the
demographic parameters.
Regarding our treatment of
uncertainty, it is important to note that
the best available scientific and
commercial data are not required to be
free from uncertainty. We identified
uncertainties in the demographic
parameters and section 4(a)(1) factors
throughout the proposed rule.
Nevertheless, we did not base any
listing determination solely on
uncertain demographic parameters or
section 4(a)(1) factors.
Comment 4: We received several
comments on demographic parameters.
One commenter asked us to define
‘‘low’’ total nester abundance. Several
commenters stated that they observe
more foraging or in-water green turtles,
now compared with previous years.
Response: Our demographic
parameters include the total nester
abundance, as described in the Status
Review Report. Total nester abundance
ranges from an estimated 404 to 992
nesting females for the Mediterranean
DPS to an estimated 167,424 nesting
females for the North Atlantic DPS. As
a general guide, we considered total
nester abundance to be low if there were
fewer than 10,000 nesting females. Total
nester abundance provides one measure
of resilience. All else being equal, small
populations are at greater risk of
extinction than large populations
primarily because of depensation,
deterministic density effects,
environmental variation, genetic
processes, demographic stochasticity,
ecological feedback, and catastrophes
(McElhany et al., 2000).
The estimates of total nester
abundance and trends were based on
quantitative surveys at nesting beaches;
however, qualitative data on nesting
sites were provided for each DPS. To
evaluate the demographic parameters,
the Status Review Team did not rely on
qualitative estimates of abundance at
foraging habitats or other areas. Such
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areas often include many juvenile
turtles, which are characterized by
lower survival rates relative to adults
(Halley et al., in review) and are less
likely to contribute to population
productivity (i.e., resilience).
Furthermore, observational data are
often subject to bias based on the
observer’s prior experience. Population
declines in many DPSs occurred
decades or centuries ago. Under this
shifting baseline, an observer may
conclude that there are ‘‘more’’ turtles
relative to their earlier, personal
observations of the depleted population
(i.e., prior to conservation efforts);
however, this conclusion likely
underestimates the population’s preexploitation abundance (Pauly 1995;
Bowen and Avise, 1995; Jackson 1997;
Bjorndal et al., 1999; McClenachan et
al., 2006; Kittinger et al., 2013). For
these reasons, we conclude that the
quantitative surveys at nesting beaches
provide the best available scientific data
to assess abundance and resilience for
each DPS.
Comment 5: Two commenters stated
that U.S. sea turtle population
assessments rely too heavily on
estimates of nesting females, citing the
Assessment of Sea Turtle Status and
Trends (NRC, 2010).
Response: The Status Review Team
evaluated the section 4(a)(1) factors
throughout the range of each DPS,
including at nesting beaches, foraging
areas, migratory corridors, and
developmental habitats. To evaluate
demographic parameters, the Status
Review Team used total nester
abundance and nesting trends, which
are the best available scientific data and
most relevant to the resilience of a DPS,
as described in the response to
Comment 4. Though the NRC report
recommends collecting data at life
stages ‘‘in addition to adult females’’
(NRC, 2010), the ESA requires us to base
our listing determinations on the best
available scientific and commercial
data, a standard which does not require
the collection of new data. As explained
above, we have determined that data on
nesting females are the best available
scientific data.
Comment 6: We received many
general comments on our analyses of the
section 4(a)(1) factors. Many
commenters stated that
Fibropapillomatosis (FP) presents a
large, and in some DPSs increasing,
threat; however, two commenters stated
that FP does not pose a threat to green
turtles. One commenter requested that
we distinguish between native and nonnative predators. One commenter
indicated that we did not give enough
weight to unusual mortality events
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(UMEs), explaining that it would take
only one algal bloom, oil spill, or other
event to kill hundreds or thousands of
turtles in a short period of time. One
commenter indicated that we needed to
make our oceans safer for turtles by
eliminating longline fishing, banning
plastics, and enforcing harassment and
litter laws on beaches. One commenter
identified snorkelers and divers as an
additional threat to sea turtles directly
or indirectly via threats to coral or
seagrass (Meadows, 2004; Landry and
Taggart, 2010). One commenter
provided additional scientific
information in support of our analyses
of the section 4(a)(1) factors.
Response: The following response
applies to general comments on the
section 4(a)(1) factors for all DPSs;
however, please see Comments 7 and 8
for our responses regarding general
comments on harvest and climate
change, respectively. We reviewed,
considered, and incorporated as
appropriate scientific and commercial
data that was not previously included in
the Status Review Report or proposed
rule.
The ESA requires us to determine
whether any species is endangered or
threatened because of any one or a
combination of the section 4(a)(1)
factors, including disease or predation
(16 U.S.C. 1533 (a)(1)(C)). It does not
distinguish between native or nonnative predators; however, we included
this information where available. FP is
a disease that causes tumors in sea
turtles. In 2015, NMFS hosted the
International Summit on
Fibropapillomatosis of Marine Turtles:
Global Status, Trends, and Population
Impacts. NMFS (in progress)
summarized the current state of FP
knowledge and concluded that FP has
population level impacts because it
generally results in reduced
survivorship; however, some turtles
recover from FP (Hirama, 2001; Hirama
and Ehrhart, 2007). Therefore, we
included FP in our analyses of section
4(a)(1) factors and considered the best
available data on the incidence and
expression of the disease for each DPS.
We considered the inadequacy of
existing regulatory mechanisms for each
DPS. For some DPSs, this included
identification of inadequate harassment
and pollution laws, due to lack of
implementation and enforcement.
We evaluated other natural or
manmade factors that affect the DPSs’
continued existence. Plastics and other
discarded materials (i.e., marine debris)
often entangle or are ingested by green
turtles (e.g., Schuyler et al., 2014) and
are a significant source of mortality in
some DPSs. We considered algal
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blooms, oil spills, and cold stunning,
which may result in UMEs. The impact
of a UME is often dependent on the
demographic factors of the DPS. For
example, the North Atlantic DPS, with
its high abundance and increasing
trends, has exhibited resilience during
recent UMEs caused by cold stunning
(Seminoff et al., 2015). In response to
the public comment, we considered the
potential impacts of snorkelers, which
may damage coral reefs or seagrass beds
(Landry and Taggart, 2010), cause green
turtles to surface more frequently
(Meadows, 2004), or alter turtles’
foraging success; however, we are not
aware of information demonstrating
population-level impacts, which are
likely to be small.
In summary, we considered each of
the section 4(a)(1) factors for each DPS,
including disease or predation, the
inadequacy of existing regulatory
mechanisms, and other natural or
manmade factors. The information
provided on FP, predation, harassment,
pollution, plastics, UMEs, and
snorkelers does not represent significant
new information and does not change
our proposed listing determinations.
Comment 7: We received several
comments on the harvest of turtles and
eggs. Several commenters, including
Senator Palacios (CNMI) and the CNMI
Department of Lands and Natural
Resources, requested that the Services
recognize and allow cultural harvest of
green turtles. Some commenters
suggested farming green turtles for such
purposes. Some commenters requested
take exemptions similar to those for
Alaskan Natives or Tribes (in regards to
threatened salmon). Some commenters
stated that green turtles were once used
for food and traditional ceremonies in
Guam, CNMI, and Hawai1i. Two
commenters explained that Federal
regulations prohibiting such take
became effective in 1976, when CNMI
became a Commonwealth of the United
States (Pub. L. 94–241, 90 Stat. 263
(1976)). One commenter stated that most
people in CNMI have no tolerance for
the disturbance and taking of the green
turtle. Several commenters opposed
harvest for any purpose, citing
overexploitation as a threat.
Response: The take of endangered
species is prohibited under section 9 of
the ESA. Longstanding protective
regulations apply the section 9
prohibitions to threatened sea turtles (50
CFR 17.42(b)(1); 50 CFR 223.205). These
regulations remain in effect and are
beyond the scope of this rulemaking.
Under the ESA, ‘‘take’’ means to harass,
harm, pursue, hunt, shoot, wound, kill,
trap, capture, or collect, or to attempt to
engage in any such conduct (16 U.S.C.
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1532(19)). The harvest of green turtles
and their eggs is prohibited as ‘‘take’’
under the ESA and its implementing
regulations. Specifically, the harvest of
turtles is equivalent to hunting, and the
harvest of eggs is collecting. Farming
would require trapping, capturing,
collecting, and eventually killing.
The ESA exempts from prohibition
the take and import of endangered and
threatened species for subsistence
purposes by Alaskan Natives and nonnative permanent residents of Alaskan
native villages (16 U.S.C. 1539(e));
however, those provisions are specific
to Alaskan Natives and permanent
residents of Alaskan native villages.
They provide no basis for authorizing
take in any other context. The statute
contains no other exceptions for cultural
or subsistence take. Modifications to the
statute to recognize additional
exemptions are beyond our authority.
With respect to the longstanding
regulatory provisions extending the
section 9 prohibitions to threatened
species of sea turtles, modifications to
the existing protective regulations are
beyond the scope of this rule. The scope
of this rule is limited to the
identification of green turtle DPSs and
the determination of their listing
statuses based on the best available
scientific and commercial data. We have
not undertaken to review or otherwise
modify the protective regulations,
which remain in effect as noted in the
proposed rule.
In addition to the ESA, the InterAmerican Convention for the Protection
and Conservation of Sea Turtles (2001)
prohibits the intentional capture,
retention, or killing of, and domestic
trade in, sea turtles, their eggs, parts, or
products. The United States is a
Contracting Party to, and is therefore
bound by, the treaty and required to
apply the prohibitions to all persons
subject to U.S. jurisdiction. The treaty
does not identify exceptions for cultural
take. Currently, U.S. obligations under
the treaty are not implemented through
separate legislation or regulations, as sea
turtles are already protected under the
ESA.
Historically, the harvest of green
turtles and their eggs resulted in
overexploitation, one of the major
factors cited in the original listings of
green turtles under the ESA (43 FR
32800, July 28, 1978). Green turtle
populations are vulnerable to
overexploitation due to slow growth
rates, late sexual maturity, and complex
migratory life histories (Bjorndal et al.,
1999). Low levels of harvest may
impede local recovery (Bell et al., 2007),
and positive population trends are
¨
quickly reversible (Hays, 2004; Troeng
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and Rankin, 2005; Broderick et al.,
2006; McClenachan et al., 2006). For
each DPS, we considered the impact of
legal and/or illegal harvest of turtles and
eggs.
Comment 8: We received many
comments on climate change. Most
commenters stated that climate change
poses a threat to green turtles. Several
commenters did not agree with our
evaluation of climate change and its
impact on green turtle DPSs. Some
stated that climate change and its
resulting impacts (e.g., increases in
temperature, sea level, ocean
acidification, and the frequency and
intensity of storm events) are not likely
to occur. One commenter stated that
climate change science and predictions
have limitations and uncertainties. One
commenter stated that while sea level
rise is likely to result in loss of nesting
habitat at insular nesting beaches, it
may result in the expansion of nesting
habitat at continental beaches. Some
commenters stated that climate change
is not likely to endanger sea turtle DPSs
within the foreseeable future because
turtles will adapt or change their
behavior. One commenter stated that the
species may not be able to adapt to
climate change due to its life history,
the rapidly changing shoreline, and
ocean pollution. One commenter
requested that the Services maintain
ESA protections for all green turtle DPSs
due to the increasing threat of climate
change, citing the unprecedented rates
of greenhouse gas emissions, increased
global temperatures, accelerated sea
level rise, increased extreme weather
events, and the effects of other threats
on green turtles (e.g., fisheries bycatch
and ocean pollution) magnified as a
result of climate change. Two
commenters stated that climate change
alone, or in synergy with other factors,
places DPSs in danger of extinction (i.e.,
endangered). One commenter provided
additional scientific information in
support of our climate change analyses.
Response: We have reviewed the best
available information on climate
change, including the reports submitted
with comments and many recently
published peer-reviewed publications
and government reports on climate
change and its impacts on green turtles.
While we received additional
information, it is not significantly
different from the information reviewed
for the proposed rule and supports our
evaluation of climate change impacts on
green turtle DPSs in the Status Review
Report and proposed rule. It does not
change our proposed listing
determinations. To address general
comments, we provide the following
summary of the best available scientific
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and commercial data on climate change
and its impact on green turtles.
The Intergovernmental Panel on
Climate Change (IPCC) was established
by the United Nations Environmental
Programme and World Meteorological
Organization to assess climate change
and its potential environmental and
socio-economic impacts. The Fifth
Assessment Report (IPCC, 2014)
summarizes the best available scientific
knowledge relevant to climate change,
considering different greenhouse gas
concentration pathways (https://
www.ipcc.ch/index.htm). The IPCC
Representative Concentration Pathway
8.5 is based on increasing radiative
forcing through 2100. It is based on
current rates of emissions continuing
into the future. We use this pathway
because it requires the least
assumptions (i.e., future rate changes)
and, in the absence of data to the
contrary, it is prudent to make resource
management decisions based on status
quo evidence. Though there is
uncertainty as to the precise magnitude
of future effects, there is very little
uncertainty as to the fact that climate
change is occurring and the direction of
impacts from climate change. This is
consistent with NMFS’ recent coral
listing determinations (79 FR 53852,
September 10, 2014) and NMFS’ recent
Guidance for Treatment of Climate
Change in NMFS ESA Decisions (NOAA
Assistant Administrator for Fisheries
Eileen Sobeck, Memorandum to NMFS
Leadership Council, January 4, 2016; in
revision). As described by the IPCC
(2014), under Pathway 8.5:
• The global mean surface
temperature is likely to increase 2.6 °C
to 4.8 °C by 2100;
• Ocean acidification is likely to
increase 100 to 109 percent by 2100;
• Global mean sea level will likely
rise 0.45 to 0.82 m by 2100; sea level
will very likely rise in at least 95
percent of the ocean area; approximately
70 percent of coastlines are projected to
experience a sea level rise of within 20
percent of the global mean; and
• There is high confidence that
warming, ocean acidification, and sea
level rise will continue to increase for
centuries beyond 2100.
Based on the above information, we
do not agree with the commenters who
state that climate change and its
resulting impacts are not likely to occur.
The IPCC provides conservative
estimates of the effects of climate
change. For example, its estimates of sea
level rise represent the mean sea level
rise that is likely to occur; under
Pathway 8.5, the maximum is 0.98 m,
and there is a 17 percent risk of
exceeding that maximum (IPCC, 2014).
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In addition, studies published since the
Fifth Assessment Report identify the
potential for higher rates of sea level rise
due to the destabilization of West
Antarctic ice sheets (Joughin et al.,
2014; Rignot et al., 2014; Trusel et al.,
2015) and volume or mass loss from
other polar ice sheets (Helm et al., 2014;
Dutton et al., 2015). Thus, the best
available scientific and commercial data
indicate that climate change is occurring
and will continue to occur within the
foreseeable future, likely resulting in
increases in temperature, sea level rise,
and ocean acidification.
Regarding the comment on limitations
and uncertainties in climate change
science, the IPCC uses qualitative
descriptions of likelihood and
confidence. In the Fifth Assessment
Report, the term ‘‘high confidence’’
refers to the authors’ judgments about
the validity of findings as determined
through evaluation of evidence and
agreement; the term ‘‘likely’’ refers to a
66 to 100 percent likelihood of an
outcome (IPCC, 2010). In our review of
the Fifth Assessment Report, we focused
on and applied outcomes and findings
that were ‘‘likely’’ to occur and with
‘‘high confidence’’ findings. For
example, the IPCC reports with high
confidence that a large fraction of
species faces increased extinction risk
due to climate change during and
beyond the 21st century, especially as
climate change interacts with other
stressors (IPCC, 2014). This conclusion
is based on observational evidence that
lower rates of natural climate change
caused significant ecosystem shifts and
species extinctions during the past
millions of years, and the current
changes are occurring at a faster rate
over less time. The IPCC also reports
with high confidence that marine
organisms will face progressively lower
oxygen levels and higher rates of ocean
acidification and that coastal systems
and low-lying areas are at risk from sea
level rise (IPCC, 2014).
We agree with commenters that
climate change and its impacts are a
threat to green turtles. Species with high
fecundity and low juvenile survival,
such as sea turtles, are the most
vulnerable to climate change and
elevated levels of environmental
variability (Cavallo et al., 2015; Halley
et al., in review). Temperature changes
and sea level rise are likely to change
ocean currents and the movements of
hatchlings, surface-pelagic juveniles,
and adults (Hamann et al., 2007;
Hawkes et al., 2009; Poloczanska et al.,
2009; Cavallo et al., 2015). Though
ocean acidification is likely to affect the
forage-base of green turtles, including
invertebrates, seagrasses, and algae, it is
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not clear how these changes will impact
green turtles (Hamann et al., 2007;
Poloczanska et al., 2009). Nesting
beaches are likely to be impacted by
climate change. Sea level rise is likely
to reduce the availability and increase
the erosion rates of nesting beaches,
particularly on low-lying, narrow
coastal and island beaches (Fish et al.,
2005; Baker et al., 2006; Jones et al.,
2007; Fuentes et al., 2009; Hawkes et al.,
´
2009; Anastacio et al., 2014; Pike et al.,
2015). On undeveloped and unarmored
beaches with no landward
infrastructure, a typical beach profile
may maintain its configuration but will
be translated landward and upward
(Bruun, 1962); however, along
developed coastlines, and especially in
areas where erosion control structures
have been constructed to limit shoreline
movement, sea level rise is likely to
cause severe effects on nesting females
and their eggs (Hawkes et al., 2009;
Poloczanska et al., 2009). Increased
storm frequency and intensity are likely
to result in altered nesting beaches and
decreased egg and hatchling success
(Pike and Stiner, 2007; Van Houtan and
Bass, 2007; Hawkes et al., 2009; Fuentes
et al., 2011a; Dewald and Pike, 2014;
Brost et al., 2015). Increasing air and sea
surface temperatures are strongly
correlated to sand temperatures
(Fuentes et al., 2009; Santos et al.,
2015a), which could lead to embryonic
mortality at 35 °C (Ackerman, 1997) and
the loss of male hatchlings at 30.3 °C
(Godfrey and Mrosovsky, 2006; Fuentes
et al., 2010b; 2011b).
Some commenters stated that sea
turtles would respond to climate change
via adaptation or behavioral changes.
Adaptation by natural selection occurs
when individuals with one heritable
trait survive and reproduce (passing that
trait onto their offspring) at a higher rate
than individuals with other heritable
traits. It occurs over many generations,
and one green turtle generation is
approximately 30 years (Seminoff et al.,
2015). As climate change progresses
(i.e., temperatures increase, ocean
acidification increases, sea level rises,
and storms increase in frequency and
intensity), sea turtles that nest on lowlying beaches with inhospitable sand
temperatures will produce less viable
offspring than previously and as
compared to those nesting at higher
elevations and on beaches with sand
temperatures conducive to embryonic
development. This adaptation scenario
will have a net effect of reducing the
overall abundance of sea turtle
populations in the future (e.g., reduced
production at the low-lying beaches and
constant production at the higher
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elevation beaches). The capacity for
green turtles to quickly adapt is
questionable because they are long-lived
and late maturing, and the species has
previously evolved in a climate that
changed at a much slower rate than
projections suggest for the next 100
years (Hamann et al., 2007; Hawkes et
al., 2009; Poloczanska et al., 2009). Slow
evolutionary rates (Avise et al., 1992)
and smaller population sizes (as a result
of previous declines and relative to preexploitation populations; McClenachan
et al., 2006) may further limit the
species’ ability to adapt (Hawkes et al.,
2009). Therefore, adaptation by natural
selection for green turtles is likely to be
limited and may not match the rate of
climate change impacts within the
foreseeable future.
We agree that in response to climate
change, green turtles may alter their
behavior; for example, nesting females
may use beaches with higher elevation
or cooler sands (Santos et al., 2015).
However, the likelihood of altered
behavior is difficult to estimate because
green turtles exhibit high nesting site
fidelity at some locations (Carr and Carr,
1972; Dizon and Balazs, 1982; Mortimer
and Portier, 1989; Marquez, 1990;
Bowen et al., 1992) and low nesting site
fidelity at others (Basintal 2002; Abe et
al., 2003). Dizon and Balazs (1982) state,
‘‘It is imperative for the well-being of
the population that no alterations in the
habitat be made since once imprinted
the green turtle is unlikely to switch its
breeding habitat.’’ Santos et al. (2015a)
conclude that no environmental
condition may be important enough to
deter a faithful nester. In addition,
alternative nesting sites may not be
available. Furthermore, coastal squeeze,
where coastal development prevents the
landward migration of beaches, may
prevent the use of higher elevation areas
(Fish et al., 2008; Mazaris et al., 2009),
even on continental beaches.
Alternative beaches may not provide the
optimal substrate for nesting (Fuentes et
al., 2010a). Therefore, the best available
scientific and commercial data indicates
that green turtle nesting behavior
alterations are not likely to ameliorate
all effects of climate change on the
species.
Our consideration of climate change
includes efforts to limit future emissions
and mitigate the impacts of climate
change. After the publication of the
proposed rule, 195 nations adopted the
landmark Paris Agreement at the
Twenty-First Conference of the Parties
to the United Nations Framework
Convention on Climate Change (the
2015 Paris Climate Conference, or COP
21). The Agreement will be open for
signature for one year beginning on
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April 22, 2016, and will come into effect
when ratified by 55 nations,
representing 55% of global greenhouse
gas emissions. Article 2.1 of the
Agreement states that it ‘‘aims to
strengthen the global response to the
threat of climate change, in the context
of sustainable development and efforts
to eradicate poverty, including by . . .
[h]olding the increase in the global
average temperature to well below 2 °C
above pre-industrial levels and to
pursue efforts to limit the temperature
increase to 1.5 °C above pre-industrial
levels. . . .’’ (UNFCCC, Dec. 12, 2015,
Article 2.1(a), https://unfccc.int/
resource/docs/2015/cop21/eng/l09.pdf ).
Contracting parties will design their
own reduction targets (their ‘‘intended
nationally determined contributions’’),
which are to become progressively more
ambitious through successive iterations
over time. The parties will be required
to submit plans for achieving their
intended reductions and to account for
their actual performance through
transparent means. See Articles 3 and 4.
Since the Paris Agreement is not yet in
force, sufficient information regarding
the plans of the parties for reducing
emissions and the likely impact on
global greenhouse gas emissions over
the foreseeable future is not yet
available. At this time, on the current
record, we must conclude there is no
basis to examine how these recent
efforts may ameliorate the likely
impacts of climate change in the
foreseeable future. As time progresses
and more information becomes available
on implementation and effectiveness of
the Paris Agreement, we expect that
information will be incorporated into
the ongoing assessments of the IPCC,
which is well-recognized to be the
source of the best available scientific
and commercial information on climate
change trends and impacts. Our future
determinations under the ESA will
continue to be informed by the
information available from the IPCC, as
well as other available climate analyses,
and thus will take into account new
information as appropriate.
One study assessed possible
mitigation measures, which included
shading or sprinkling nests with water
to reduce temperatures (Jourdan and
Fuentes, 2015); however, the
effectiveness of such strategies to
address climate change impacts has yet
to be determined and is likely to be
dependent on conservation resources
and site-specific characteristics.
Therefore, based on the best available
scientific and commercial data, we
conclude that the effects of climate
change present a threat to all green
turtle DPSs. While this threat alone does
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not put any DPS in danger of extinction,
climate change together with other
threats places some DPSs in danger of
extinction (i.e., endangered) and makes
others likely to become endangered
within the foreseeable future (i.e.,
threatened).
Comment 9: Several commenters
stated that DPSs proposed as
endangered (i.e., the Central West and
Central South Pacific DPSs) should be
listed as threatened due to inadequate
data. Several commenters stated that
nesting estimates in the Central West
and Central South Pacific DPSs are
based on a limited number of survey
locations. Some commenters, including
the Guam Department of Agriculture,
requested a 6-month extension for the
publication of the final rule.
Response: Please see the previous
section entitled, Listing Determinations
under the ESA, which describes the
listing determination process and the
difference between endangered and
threatened species. The ESA requires us
to determine whether any species is
endangered or threatened because of
any one or a combination of the section
4(a)(1) factors (16 U.S.C. 1533(a)(1)) and
based solely on the best available
scientific and commercial data (16
U.S.C. 1533(b)(1)(A)); it does not require
quantitative analyses, and it does not
require us to collect new data or
perform additional surveys. These
requirements apply equally to
endangered and threatened
determinations.
Regarding the comment on the
number of nesting survey locations, for
each DPS we compiled the best
available scientific and commercial data
including peer-reviewed scientific
publications, government reports, and
verified unpublished data on green
turtle biology and threats. The Status
Review Team and two post-doctoral
researchers evaluated over 600
publications on green turtles for the
Status Review Report, which was peerreviewed by 15 scientists. To further
ensure that the listing determinations
are based on the best available data, we
requested additional information and
allowed over 6 months for response (80
FR 15271, March 23, 2015). We did not
receive any new information on nesting
sites in the Central West or Central
South Pacific DPSs. We did not receive
any information that changed the listing
determination for any DPS.
Regarding the request for an
extension, the ESA provides that if we
find that there is substantial
disagreement regarding the sufficiency
or accuracy of the available data
relevant to the determination, we may
delay the publication of the final rule
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for 6 months to solicit additional data
(16 U.S.C. 1533 (b)(6)(B)(i)). In this
instance, we do not find that there is a
substantial disagreement regarding the
sufficiency or accuracy of the available
data on the Central West or Central
South DPSs, or for any other DPS. To
the contrary, we find that the best
available scientific and commercial data
support our proposed listing
determinations, without the need for
additional data. The commenters did
not identify additional information that
will become available and would be
fundamental to our determinations. We
allowed a 6-month public comment
period on the proposed rule, which
exceeded the 60-day minimum as
outlined in our regulations (50 CFR
424.16(c)(2)). Therefore, we find there is
no basis upon which to grant the request
to extend the deadline for publication of
the final rule.
Comment 10: The Colombian Ministry
of Environment and Sustainable
Development provided information on
the National Programme for the
Conservation of Marine and Continental
Turtles in Colombia that includes
education, conservation, and outreach
plans; in addition, Colombia works with
the Permanent Commission for the
South Pacific on the Southeast Pacific
Action Plan (based on the Lima
Convention of 1981), which protects sea
turtles and their habitats by mitigating
threats through participatory strategies
designed using the best available
scientific and socioeconomic
information. The Colombian Ministry of
Environment and Sustainable
Development also stated that in areas
where utilization of sea turtles is deeply
ingrained in the local culture, such as
the La Guajira region of Colombia,
changing people’s attitudes about the
use of sea turtles can be a long, slow
process; however, these communities
play a fundamental role in the
conservation of sea turtles.
Response: We appreciate the
comment and the efforts made to
conserve green turtles. We added the
information on conservation efforts in
Colombia to the relevant sections of this
notice on the South Atlantic and East
Pacific DPSs.
Comment 11: One commenter
identified several spelling mistakes,
misused words, and typos.
Response: We corrected the spelling
mistakes, misused words, and typos in
the final rule.
Comments on the North Atlantic DPS
Comment 12: We received comments
from State agencies including the
Florida Fish and Wildlife Conservation
Commission (FWC), the Florida
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Department of Environmental Protection
(FDEP), the Georgia Department of
Natural Resources Wildlife Resources
Division, the North Carolina Wildlife
Resources Commission, and the Virginia
Department of Game and Inland
Fisheries (VDGIF). They supported the
DPS listings. The FWC and FDEP
emphasized the conservation programs
currently in place in Florida. The
VDGIF recommended that more
emphasis be placed on nesting beaches
north of Florida, such as in North
Carolina, as they may become more
important in the future due to climate
change.
Response: Regarding climate change,
please see our response to Comment 8.
We appreciate the positive response
from the State agencies and their
continued support on listed species
conservation. We considered the best
available data on green turtle
demographic parameters, threats, and
conservation efforts for this DPS. The
estimate of total nesting abundance
includes the nesting sites north of
Florida (Seminoff et al., 2015). Nesting
beaches north of the high density
nesting beaches in southeast Florida
may become more important to the DPS
in the foreseeable future. By listing the
DPS as a threatened species under the
ESA, we protect all nesting green
turtles, including those that nest on
beaches in North Carolina.
Comment 13: We received many
comments from the public on the listing
determination of the North Atlantic
DPS. Several commenters supported the
listing determination. One commenter
supported the listing determinations
and provided information on nesting
abundance in Florida and an observed
increase in juvenile green turtles on the
reefs off Hutchinson Island, the Central
Indian River Lagoon, and the Key West
National Wildlife Refuge. Many
commenters stated that the DPS should
be listed as endangered due to the
severity of threats. Several commenters
stated that turtles of the Florida
breeding population, originally listed as
endangered, would lose protections if
listed as threatened. One commenter
referenced the high abundance of green
turtles prior to commercial exploitation
and identified the possible threat of
harvest if ESA protections were
removed. One commenter stated that the
listing determination did not agree with
the critical risk threshold in the Status
Review Report, i.e., that the standard for
extinction was lower than the statutory
definition and that the horizon for
foreseeable future was beyond what
could reasonably be predicted. The
commenter stated that the DPS is not
likely to become endangered within the
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foreseeable future, citing population
increases, PVAs, and the critical risk
threshold analysis described in the
Status Review Report. This commenter
requested the information used to make
the listing determination.
Response: Please see the section
entitled, Listing Determinations under
the ESA, which describes the listing
process, the difference between
endangered and threatened species, our
explanation for using a foreseeable
future of 100 years, and the reasons that
we did not apply the critical risk
threshold, which is a higher standard
(i.e., requires a condition worse than the
statutory definition of endangered). The
best available scientific and commercial
data allow us to make reasonable
projections over that time frame as to
the key threats that are impacting the
species as well as the species’ biological
response (over three generations). The
primary threats leading to listing are
already operating on the species, so we
are not relying solely on the ability to
project effects into the future. Please see
our response to Comment 3 for the
reasons that we did not base our
determination on the PVAs. The
information used to make the listing
determination is provided in the Status
Review Report, proposed rule, and final
rule; these documents and the list of
references cited in the proposed rule are
available online at https://
www.nmfs.noaa.gov/pr/species/turtles/
green.htm.
We do not agree with commenters
who state that the North Atlantic DPS is
endangered or should not be listed
under the ESA. The North Atlantic DPS
is not presently in danger of extinction
because of its high nesting abundance,
increasing trends, connectivity, and
spatial diversity, which provide some
resilience against the section 4(a)(1)
factors. However, the DPS is likely to
become endangered within the
foreseeable future throughout all or a
significant portion of its range due to
the following threats: habitat
degradation, harvest of turtles and eggs,
disease and predation, bycatch, channel
dredging, marine debris, cold stunning,
and climate change. Removing ESA
protections would further increase the
likelihood of endangerment. The large
abundance and increasing trend of
nesting females are a direct result of
ESA protections and State, local, and
foreign protections, which are
influenced by the ESA status. If we did
not list the DPS under the ESA, the
important protections, financial
resources, and conservation benefits
associated with the ESA would not
continue. Further, without listing under
the ESA, it is possible that some State,
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local, and foreign protections would be
rescinded.
Regarding the comment on turtles
from the Florida breeding population,
the change in status (from endangered to
threatened) will not reduce protections
afforded under the ESA. Threatened and
endangered sea turtles receive similar
protections under the ESA because
longstanding protective regulations
apply the prohibitions of section 9 of
the statute (which automatically apply
to endangered species) to threatened sea
turtle species (50 CFR 17.42(b)(1); 50
CFR 223.205). As discussed in the
proposed rule and in a prior response,
those regulations are not affected by this
listing determination rulemaking and
remain in effect for threatened DPSs,
such as the North Atlantic DPS. One
minor change for turtles from the
Florida breeding population is that,
under the USFWS and FWC section
6(c)(1) agreement, any authorized
employee or agent of the FWC may,
when acting in the course of official
duties, take or issue a conservation
permit authorizing take of a green turtle
for purposes consistent with the ESA
and provisions of the section 6(c)(1)
agreement.
Comment 14: One commenter stated,
‘‘To the extent that the Services take the
position that they will not delist species
unless specifically petitioned to do so,
API [American Petroleum Institute]
requests that the Services treat this letter
as a delisting petition.’’
Response: The Services do not take
the position ‘‘that they will not delist a
species unless specifically petitioned to
do so.’’ As discussed in the proposed
rule, we initiated a status review of the
entire species to comprehensively
identify DPSs and determine their
appropriate listing status, including
whether any DPSs no longer warrant
listing. Thus, with or without a petition
directed at any particular DPS, we used
the best available scientific and
commercial data (including comments
submitted on the proposed rule) to make
appropriate ESA listing determinations
for each DPS. Stated differently, filing of
such a petition at this time would not
trigger consideration of new issues that
are not already being thoroughly
evaluated as part of the ongoing
rulemaking. We considered the
information presented in API’s
comment letter fully when making our
final listing determinations. It is thus
unnecessary by the commenter’s own
terms to consider the comment as a
petition.
We find that the purported petition
fails to constitute a valid petition for
three additional reasons. First, were the
Services to process comments on a
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proposed rule as petitions seeking to
determine the status of the species
already the subject of the proposed rule,
it would create a circular and redundant
process. When a petition is filed, the
Services must make a 90-day finding to
the maximum extent practicable, and if
that initial finding is positive, it triggers
a status review and ultimately a 12month determination (50 CFR
424.14(b)(3)). If the relevant status
review has already been conducted and
a proposed rule to determine the status
of the affected species is available for
comment, there is nothing more that
processing a new petition at that time
could accomplish. Second, API’s letter
can be read as attempting to petition the
Services to delist the North Atlantic
DPS before the rule to list it as such has
become a final agency action. To the
extent that was the commenter’s intent,
such a preemptive petition is improper
as it does not seek an action that can be
presently taken. Finally, we note that
our regulations require that every
petition clearly identify itself as such
(50 CFR 424.14(a)), a requirement not
clearly met where the document is selfdescribed as a comment letter filed
within the context of an ongoing,
docketed proceeding.
Comment 15: We received many
comments on the section 4(a)(1) factors
for the North Atlantic DPS. Though
commenters generally agreed with our
identification of threats, several
disagreed with our analyses of these
threats. One commenter provided
information on the threats of climate
change, fisheries bycatch, pollution,
direct harvest, disease, and the
inadequacy of existing regulatory
mechanisms, to provide further support
for our determination and the need to
continue protection under the ESA
without any weakening of regulations.
Several commenters stated that green
turtles are especially sensitive to habitat
destruction at nesting sites as a result of
coastal development, artificial lighting,
and beach nourishment projects and in
water as a result of eutrophication,
pollution, and harmful algal blooms.
One commenter stated that poaching is
a major threat in the North Atlantic
DPS. Several commenters stated that the
DPS should be considered endangered
as a result of the high incidence of FP
in green turtles found in Florida and the
spread of the disease geographically
(from central and southern Florida to
northeast and northwest Florida) and in
incidence. One commenter stated that
‘‘from 1980–2005, 22.2 percent of
stranded green sea turtles were afflicted;
last year, 28.7 percent of all green sea
turtles were afflicted.’’ Several
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commenters stressed the importance of
increasing threats, such as FP, climate
change, marine debris, bycatch, and
boat strikes. Several commenters stated
that climate change should be
considered a significant threat for the
North Atlantic DPS, and the listing
status for Florida green turtles should
remain as endangered based on this
threat. One commenter stated that green
turtles are especially sensitive to sea
level rise, because they prefer to nest on
narrower, steeper, and eroded beaches.
They stated that the combination of
coastal development and sea level rise
could be devastating to the DPS;
however, the removal of structures such
as seawalls and buildings might mitigate
such effects. One commenter stated that
the long-term effects of the Deepwater
Horizon oil spill (Mississippi Canyon
252) remain to be seen. One commenter
stated that the North Atlantic DPS is not
exposed to any threats that warrant its
listing as threatened under the ESA. The
commenter stated that the amount of
coastal armoring permits in Florida has
decreased between 2001 and 2005,
protection has increased in other
countries, artificial lighting is controlled
by local lighting ordinances, and sea
level rise is not considered an imminent
threat. The commenter stated that
impacts from armoring are offset by
beach nourishment programs that place
sand on eroding beaches, increasing
green turtle nesting habitat.
Response: For our general responses
regarding the section 4(a)(1) factors,
please see Comments 6, 7, and 8. We list
the North Atlantic DPS as threatened
because of habitat destruction and
modification, the harvest of turtles and
eggs, disease and predation, inadequate
regulatory mechanisms, bycatch,
channel dredging, marine debris, cold
stunning, and climate change. Based on
our review of the best available
scientific and commercial data, the DPS
is not presently in danger of extinction
due to a single factor (e.g., FP or climate
change) or the section 4(a)(1) factors
cumulatively, when considered in the
context of the demographic parameters
(i.e., high abundance, increasing trends,
and spatial diversity), which provide
resilience to the DPS at present. While
a species may be listed based on any
one of the five factors, in many
instances, more than one factor may
cause the species to meet the definition
of a threatened or endangered species.
Alternatively, while each individual
factor may not cause the species to meet
the definition of threatened or
endangered, the cumulative effect of
multiple factors may cause the species
to be listed.
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Regarding the comments on FP, the
disease results in internal and/or
external tumors that may grow large
enough to hamper swimming, vision,
feeding, and potential escape from
predators. We acknowledge the
increasing distribution and incidence of
FP, particularly in Florida. The threat is
likely to increase, given the continuing,
and possibly increasing, human impacts
to, and eutrophication of, coastal marine
ecosystems that may promote this
disease (NMFS, in progress). However,
FP is not always lethal, and
photographic evidence from Florida
shows that the tumors on some green
turtles go into regression (Hirama, 2001;
Hirama and Ehrhart, 2007; NMFS, in
progress).
Regarding the comments on habitat
destruction and protection, we
considered habitat modification and
destruction impacts to the extent they
are known and based on the best
available data, including qualitative
information (i.e., the ESA does not
require quantitative data, which in this
case are limited). There has been an
increase in coastal armoring structures
permitted by the FDEP over the last 5
years particularly on Singer Island in
Palm Beach County, a high density
nesting beach. In many areas, residential
and commercial properties, as well as
breakwaters, jetties, seawalls, and other
erosion control structures designed to
protect public and private property,
continue to be permitted and built. Such
coastal development places increasing
pressure on beach systems and
negatively affects nesting habitat. While
mitigation measures (e.g., lighting
ordinances and construction setbacks)
provide important protections, they do
not remove the threats or reduce them
to insignificant levels. Beach
nourishment programs can provide
nesting habitat where it had been
previously destroyed or offset impacts
from other coastal measures; however,
they also alter sand characteristics and
nearshore foraging habitat. At best, such
programs help to reduce impacts but do
not provide new benefits to the turtles.
Regarding the comment on poaching,
as explained in more detail in the Status
Review Report, the harvest of turtles
and eggs remains legal in several
countries within the range of the North
Atlantic DPS. Turtles are legally and
illegally harvested in foraging areas.
Eggs are harvested at many nesting
beaches.
Regarding the comment on the
Deepwater Horizon oil spill, we agree
that the long-term effects remain to be
seen because the spill was particularly
harmful to post-hatchlings and surfacepelagic juveniles (Witherington et al.,
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2012) by temporarily destroying their
Sargassum habitat (Powers et al., 2013)
and resulting in the ingestion of
contaminants.
Numerous other natural and
manmade factors affect the continued
existence of this DPS. Regulatory
mechanisms contained within
international instruments are
inconsistent and likely to be
insufficient. While some regulatory
mechanisms should address direct and
incidental take for this DPS, it is unclear
to what extent such measures are
implemented and effective. The species
is conservation-dependent and positive
population trends are likely to be
curtailed or reversed without alternate
mechanisms in place to continue
existing conservation efforts and
protections afforded under the ESA. We
conclude that the North Atlantic DPS is
threatened by the above section 4(a)(1)
factors.
Comment 16: Several commenters
supported an endangered listing
determination for the North Atlantic
DPS, citing the criteria in the Recovery
Plan for the U.S. Population of Atlantic
Green Turtle (NMFS and USFWS, 1991);
however, one commenter cited the
criteria in the Recovery Plan as a basis
for delisting the North Atlantic DPS.
Response: The ESA requires us to
determine whether a species is
threatened or endangered because of the
4(a)(1) factors, based solely on the best
available data after considering
conservation efforts. Section 4(f)(1)
requires us to develop and implement
recovery plans for the conservation and
survival of endangered and threatened
species unless the Secretary finds that
such a plan will not promote the
conservation of the species (16 U.S.C.
1533(f)(1)). The information included in
such plans informs but does not dictate
listing determinations. See Friends of
Blackwater v. Salazar, 691 F.3d 428
(D.C. Cir. 2012).
The 1991 Recovery Plan was written
prior to the identification of the DPS
and only applies to the U.S. population
of the Atlantic green turtle (whereas the
North Atlantic DPS includes foreign
populations and does not include turtles
nesting in the U.S. Virgin Islands). The
1991 Recovery Plan identifies recovery
criteria (NMFS and USFWS, 1991);
however, these criteria apply to
delisting, not to changes in listing status
(i.e., from endangered to threatened).
Some, but not all, of the recovery
criteria for this population have been
met. Nesting in Florida averages over
14,000 nests annually for the last 6 years
(https://myfwc.com/media/2988445/
greenturtlenestingdata10–14.pdf; FWC,
pers. comm., 2015); however, less than
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25 percent of all available nesting
beaches and less than 50 percent of
nesting activity are in public ownership.
Similarly, the species’ status in
nearshore and inshore waters and
reduction in stage class mortality have
not been evaluated.
To make our listing determination, we
evaluated the section 4(a)(1) factors in
the context of the demographic
parameters for this DPS (i.e., we did not
directly evaluate whether the U.S.
Atlantic population has met the
recovery criteria). Based on the best
available scientific and commercial
data, we conclude that the North
Atlantic DPS is not presently in danger
of extinction but is likely to become
endangered within the foreseeable
future throughout all or a significant
portion of its range (i.e., threatened
under the ESA) because of habitat
destruction and modification, the
harvest of turtles and eggs, disease and
predation, inadequate regulatory
mechanisms, bycatch, channel dredging,
marine debris, cold stunning, and
climate change.
Comments on the Mediterranean DPS
Comment 17: One commenter
requested a discussion of the threat from
wars in Syria and Libya.
Response: Green turtles nest on
Syrian beaches and forage in the waters
off Libya; there is a migratory corridor
between these nesting and foraging
hotspots (Stokes et al., 2015). Stokes et
al. (2015) tracked 34 turtles from
Cyprus, Turkey, Israel, and Syria; over
half of the turtles migrated to the Gulf
of Sirte and the Gulf of Bomba in Libya.
The Gulf of Bomba and nearby Ain
Gazala have been identified as potential
marine protected areas (Badalamenti et
al., 2011); the authors also recommend
the Gulf of Sirte for consideration as a
marine protected area (Stokes et al.,
2015). As summarized by Stokes et al.
(2015), much of Libya’s coastline is not
degraded and is relatively unpopulated;
total fisheries catch is an order of
magnitude lower than that of
neighboring Egypt and Tunisia. Marine
exploitation has increased, however,
and conservation efforts have been
delayed by political unrest (Badalamenti
et al., 2011). Geopolitical instability
further complicates conservation efforts
(Katsanevakis et al., 2015). In an
interview on the Stokes et al. (2015)
findings, B.J. Godley indicated that
political instability can have positive
(by slowing exploitation and
development and creating de-facto
wildlife refuges) and negative (by
delaying the identification of marine
protected areas) effects on conservation
(Gertz, 2015; https://www.takepart.com/
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article/2015/02/14/endangered-greenturtle-mediterranean-libya). Because of
the possibility of positive and negative
effects, and without specific information
on the likely impacts on green turtles,
we cannot determine how such conflicts
are likely to impact the Mediterranean
DPS. In any case, we proposed to list
this DPS as an endangered species, and
such information would not change our
listing determination.
Comments on the South Atlantic DPS
Comment 18: One commenter
suggested combining the North and
South Atlantic DPSs; however, another
commenter stated that the separation of
the North and South Atlantic DPSs is
supported by recent studies (Putman
and Naro-Maciel, 2013; Naro-Maciel et
al., 2014b). The United Kingdom (UK)
Department for Environment, Food, and
Rural Affairs supported the threatened
status of the South Atlantic DPS but
provided the following information
about the Ascension Island nesting site:
The best available data on the
Ascension Island population is
provided by Weber et al. (2014); the
average size of nesting females declined
from a mean carapace length of 116.0
cm in 1973–1974 to 111.5 cm in 2012
(Weber et al., 2014); and predation by
feral dogs and especially cats, which
were eradicated in 2004, is no longer a
significant source of mortality for
hatchlings. One commenter stated that
fewer than 10 green turtles nest on
monitored index beaches annually in
Dominica and that these numbers are
lower than a generation ago due to
poaching of turtles and eggs. One
commenter suggested renaming the
South Atlantic DPS because its
boundary occurs north of the equator.
Response: We appreciate the
comments from the UK Department for
Environment, Food, and Rural Affairs
and their efforts to conserve green
turtles. We reviewed and evaluated the
information on turtles at Ascension
Island and Dominica and determined
that it does not change the proposed
listing determination for the South
Atlantic DPS.
Regarding the suggestion to combine
the North and South Atlantic DPSs, the
best available scientific and commercial
data support the identification of the
North and South Atlantic DPSs. Genetic,
tagging, tracking, and modeling studies
support the discreteness of the North
and South Atlantic DPSs (Baudouin et
al., 2015; Seminoff et al., 2015). In
addition to the information provided in
the Status Review Report, nuclear
(microsatellite) and mtDNA analyses
reveal a strong, ancient barrier to
dispersal between northern and
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southern Atlantic green turtles (NaroMaciel et al., 2014b), as divided by our
definition of the North and South
Atlantic DPSs (i.e., the equator lies
south of and does not coincide with the
genetic barrier). The breeding seasons of
the DPSs are temporally distinct,
potentially limiting mixing during
reproductive migrations (Naro-Maciel et
al., 2014b). Ocean circulation models
(i.e., a potential proxy of juvenile
turtles, though see Putman and
Mansfield, 2015) indicate that the
majority of particles arising from the
northern or southern Atlantic are likely
to remain within the northern or
southern Atlantic, respectively (Putman
and Naro-Maciel, 2013).
Regarding the suggestion to rename
the South Atlantic DPS, the vast
majority of the range of the South
Atlantic DPS lies in the South Atlantic
Ocean. We find that the nomenclature
appropriately distinguishes this DPS
from the North Atlantic DPS and is
consistent with the terminology used to
name all DPSs.
Comments on the Southwest Indian DPS
Comment 19: The UK Department for
Environment, Food, and Rural Affairs
provided additional information on the
British Indian Ocean Territory (BIOT),
which occurs within the range of the
Southwest Indian DPS, stating that: (1)
Available information on nesting turtles
within the BIOT includes ‘‘only fairly
crude assessments of population size
and seasonality,’’ while satellite data
indicate movement throughout the
Indian Ocean; and (2) it is highly
unlikely that, given its isolation, the
BIOT nesting population would be
supplemented by immigrants from
elsewhere. The Department for
Environment, Food, and Rural Affairs
recommends waiting for additional
census data before considering whether
to downgrade the conservation status of
these sea turtles. The Embassy of the
Republic of Mauritius agreed with the
proposed listing.
Response: We appreciate the
comments from the UK Department for
Environment, Food, and Rural Affairs
and the Embassy of the Republic of
Mauritius and their efforts to conserve
green turtles. The status for this DPS has
not been changed; we listed the species
as threatened in 1976 and now list the
Southwest Indian DPS as threatened
under the ESA. The ESA requires us to
base our listing determinations on the
best scientific and commercial data
available, after conducting a review of
the status of the species and considering
conservation efforts (16 U.S.C.
1533(b)(1)(A)). Because we have
sufficient data to determine the listing
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status of this DPS and did not receive
additional data during the 6-month
comment period on the proposed rule,
there is no basis to delay our
determination while additional census
data are collected.
The Status Review Team considered
the BIOT, which includes the seven
atolls of the Chagos Archipelago, where
sea turtle nesting is common (Mortimer
and Day, 1999). The estimated total
nester abundance of 1,800 nesting
females (Seminoff et al., 2015) was
based on the Mortimer and Day (1999)
estimate of 400 to 800 females nesting
annually at the Chagos Archipelago,
which we consider to be the best
available scientific and commercial
data. Mortimer and Day (1999) state that
green turtles and their habitat are well
protected by the BIOT administration;
however, monitoring and conservation
efforts are not sufficient to adequately
reduce all threats.
Comments on the East Indian-West
Pacific DPS
Comment 20: The Forestry Bureau of
the Taipei Economic and Cultural
Representative Office agrees with the
listing under the ESA.
Response: We appreciate the
comment from the Forestry Bureau of
the Taipei Economic and Cultural
Representative Office and their efforts to
conserve green turtles.
Comments on the Central West Pacific
DPS
Comment 21: We received several
comments on the section 4(a)(1) factors
for the Central West Pacific DPS. One
commenter stated that human
populations in Guam, CNMI, and the
Federated States of Micronesia are
decreasing. One commenter stated that
development is not a threat. Several
commenters stated that poaching of
nesting turtles is a problem in the
Central West Pacific DPS; one
commenter stated that allowing cultural
take would resolve this issue, though
another disagreed. One commenter
stated that bycatch is a threat in CNMI.
One commenter stated that 4,000 years
ago, sea level was 1.8 m higher than it
is today in CNMI (Amesbury, 2007), and
one commenter stated that sea level rise
is not a threat.
Response: Regarding cultural take,
please see our response to Comment 7.
The harvest of sea turtles or their eggs
is illegal under the ESA and its
regulations, the Inter-American
Convention for the Protection and
Conservation of Sea Turtles, and local
laws in CNMI (CNMI Public Law 02–51
1981) and Guam (Endangered Species
Act of Guam, 1979). Despite these
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protections, poaching occurs in CNMI
(CNMI–DLNR 2006–2009, 2011, 2013;
Summers et al., in progress) and Guam
(https://www.noaanews.noaa.gov/
stories2008/20080729_seaturtle.html;
https://dawr.guam.gov/wildlife/seaturtles/). The best available data
indicate that past poaching and harvest
have led to the low nesting abundance
of the Central West Pacific DPS,
whereas the protection of turtles and
their habitat has led to recent increases
in foraging turtles (Martin et al., 2016).
Based on the demographic parameters of
the DPS, including its low nesting
abundance, we conclude that it has little
resilience against threats, especially
those that remove turtles from the
population, such as poaching and the
harvest of turtles and eggs. Bycatch in
subsistence and small-scale commercial
fishing operations is also a concern.
Regarding the comments on
development and human population
size, threats to nesting beaches include
construction (and associated lighting),
military activities, public use of
beaches, and beach driving (NMFS and
USFWS, 1998; CNMI Coastal Resources
Management Office, 2011; Palacios,
2012; Wusstig, 2012). Coastal erosion
has been identified as a high risk in the
CNMI due to the existence of
concentrated human population centers
near erosion-prone zones; it is likely to
be exacerbated by sea level rise (CNMI
Coastal Resources Management Office,
2011). In Guam, turtle densities are
highest where there are healthy coral
reefs and seagrass beds, low human
densities, and marine protected areas
(Martin et al., 2016). Though human
population density is correlated with
turtle density, our major concern is with
coastal development and the resulting
degradation of nesting beaches and
foraging areas. Human populations in
Guam, CNMI, and the Federated States
of Micronesia have increased since the
listing of the green turtle in 1976. Since
2000, human populations have
increased in Guam and decreased in
CNMI and the Federated States of
Micronesia (World Bank, 2015; https://
www.census.gov/newsroom/releases/
archives/2010_census/cb11cn179.html).
Regarding the comments on sea level
rise, sea level changes have occurred
throughout the history of the species
(e.g., Grant et al., 2012), but rarely at the
rate likely to occur as a result of
anthropogenic climate change (IPCC,
2014). Furthermore, sea level rise did
not occur in the presence of other
threats, such as unprecedented ocean
acidification (Honisch et al., 2012),
overexploitation, fisheries bycatch, and
habitat degradation due to coastal
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development, pollution, and other
anthropogenic causes. Additionally, the
effects of sea level rise are likely to be
exacerbated by the increased frequency
and intensity of storm events (IPCC,
2014). As described by Summers et al.
(in progress), water inundation and
accompanying erosion from tropical
storms, typhoons, and storm water
drainage impacted 7.5 percent of
inventoried Saipan nests (N = 160)
between 2007 and 2013. We expect
increases in the rate of such impacts
within the foreseeable future.
We conclude that the Central West
Pacific DPS is endangered by a
combination of section 4(a)(1) factors.
Comment 22: We received several
comments on the listing determination
for the Central West Pacific DPS.
Senator Palacios (CNMI) stated that
though NMFS supports a contractor to
perform research on green turtles in
CNMI, resources for data collection are
insufficient. Some commenters stated
that data are limited and lacking
quantitative analyses and that they often
observe in-water sea turtles (though
another commenter never sees sea
turtles). The Guam Department of
Agriculture suggests listing the DPS as
threatened due to data limitations
(including limited survey effort) and
naturally low abundances; the Guam
Department of Agriculture also requests
information on whether nations within
the range of the Central West Pacific
DPS were contacted, how the
endangered listing would solidify
protection of the species, and whether
the recovery plan will be updated. The
CNMI Department of Lands and Natural
Resources provided comments on the
many in-water turtles around Tinian,
suggested the possibility of nesting in
the northern islands, and disagreed with
the endangered listing status because it
might increase the extinction risk and
hinder recovery (though another
commenter did not agree with this
assessment and did not understand how
the harvest of turtles for cultural reasons
would result in conservation) and
further reduce the possibility of cultural
harvest.
Response: Please see our responses to
Comment 3 (regarding turtle
observations), Comment 7 (regarding
cultural harvest), and Comment 9
(regarding perceived data limitations).
Regarding the comments on data, to
make our proposed listing
determination, we evaluated the best
available scientific and commercial
data, which included information from
several surveys (NMFS and USFWS,
1998; Bureau of Marine Resources,
2005; Barr, 2006; Palau Bureau of
Marine Resources, 2008; Trevor, 2009;
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Maison et al., 2010; H. Suganuma,
Everlasting Nature of Asia, pers. comm.,
2012; J. Cruce, Ocean Society, pers.
comm., 2013). For our final listing
determination, we also reviewed
additional surveys, which did not
provide significant new information or
change our listing determination
(Kolinski et al., 2001; Kolinski et al.,
2004; Kolinski et al., 2005; Kolinski et
al., 2006; Jones and Van Houtan, 2014;
Martin et al., 2016; Summers et al., in
progress). We conclude that data on
nesting turtles (rather than foraging
turtles, as discussed in comments and at
public hearings) provide the best
available scientific and commercial data
for assessing resilience.
Regarding the suggestion to list the
DPS as threatened, based on the best
available scientific and commercial
data, we find the species to be in danger
of extinction throughout all or a portion
of its range as a result of the present and
threatened modification of its habitat,
poaching of turtles and eggs, disease
and predation, fisheries bycatch, marine
debris, and climate change. Regulatory
mechanisms and conservation efforts
are inadequate to remove the impact of
these threats, and the DPS has little
resilience to such threats due to its low
nesting abundance and limited nesting
site diversity.
Regarding the comment on naturally
low abundance and the possibility of
additional nesting sites, the low nesting
abundance is likely a result of previous
and continued harvest of turtles and
eggs (Groombridge and Luxmoore,
1989). We are not aware of any
additional nesting data for the northern
islands and did not receive any
information on additional nesting sites
during the 6-month public comment
period.
Regarding the information requests
and concerns over the endangered
status, upon publication of the proposed
rule, we notified other nations and
requested their comments. We intend to
update the recovery plans in the future
after the DPS listings are finalized;
however, we do not have an anticipated
completion date for such plans at this
time. The updated listings will allow for
more specialized protection of each
DPS. The endangered status of the
Central West Pacific DPS will highlight
it as a conservation priority among
green turtle DPSs. We do not agree that
the endangered status will increase the
extinction risk and hinder recovery. Past
ESA protections have led to improving
trends in the Central West Pacific
(Martin et al., 2016), and we expect such
improvements to continue.
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Comments on the Central South Pacific
DPS
Comment 23: We received several
comments on the listing determination
for the Central South Pacific DPS. The
Governor of American Samoa stated that
the endangered status would impact
fisheries, fishing grounds, and the
economy without providing the DPS
with additional protection (i.e., relative
to the current threatened status). In
addition to these concerns, the
Department of Marine and Wildlife
Resources of American Samoa stated
that the Status Review Report and
proposed rule do not provide rigorous
scientific assessment of threats of the
Central South Pacific DPS because a
PVA was not performed, there was
limited survey effort in the Central
South Pacific, the estimate of nesting
female abundance was not weighted to
potential available habitats, and the
recorded decline was based on one
nesting site in French Polynesia. Others
provided similar comments and
requested further study of the DPS. One
commenter stated that the nesting
estimate should be weighted for survey
effort. One commenter questioned
whether turtles from American Samoa
and French Polynesia should be part of
the same DPS.
Response: Please see our responses to
Comment 3 and Comment 9 regarding
the process and data used to make
listing determinations and the
difference between threatened and
endangered species. The ESA does not
allow consideration of economic issues
for listing determinations.
Regarding the comment on the
impacts of the change in status, the new
listings will allow for more specialized
protection of each DPS. The endangered
status of the Central South Pacific DPS
will highlight it as a conservation
priority among green turtle DPSs. This
may encourage conservation actions in
other nations. The status change for
turtles in American Samoa is unlikely to
result in additional implementation
burdens because of longstanding
regulations protecting threatened
species in a manner similar to
endangered species (50 CFR 17.42(b)(1);
50 CFR 223.205).
Regarding the comments on surveys
and assessments, for the Central South
Pacific DPS, the best available scientific
and commercial data are summarized in
the Status Review Report and include,
but are not limited to, unpublished
nesting and in-water surveys data in
American Samoa collected by NMFS
and the Department of Marine and
Wildlife Resources of American Samoa.
In the proposed rule, we requested all
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data on nesting locations, abundance,
trends, and threats, to ensure the
identification and application of the
best available data; however, we did not
receive additional information for this
DPS. We conclude that the data
identified in the Status Review Report
and applied in the proposed and final
rule represent the best available
scientific and commercial data and are
sufficient to make a listing
determination on the Central South
Pacific DPS.
Regarding the comments on weighting
data, to determine the status of the DPS,
we analyzed the best available data on
the section 4(a)(1) factors in the context
of demographic parameters, including
nesting abundance and trends. Nesting
abundance was not weighted to
potential available habitat or survey
efforts because such data are not
available. Instead, the Status Review
Team provides two estimates of total
abundance of nesting females. The first
estimate of approximately 2,900 nesting
females was based on 37 quantified
nesting sites (Seminoff et al., 2015). The
Status Review Team provided a second
estimate (approximately 3,600 nesting
females) based on an additional 700
nesting females at 22 unquantified
nesting sites, for which only qualitative
information was available (Seminoff et
al., 2015). Such levels of abundance do
not provide resilience against threats
that remove green turtles from the
population, such as harvest and
stochastic events, which increase the
extinction risk for small populations
(Schaffer, 1981; Wright and Hubbell,
1983; Lande et al., 2003). There appears
to be a declining trend at the largest
nesting beach in French Polynesia,
which is considerably larger in
abundance than all other known nesting
beaches (Seminoff et al., 2015). In
addition, previous reports on nesting
abundance in American Samoa indicate
significant declines relative to historical
levels (Tuato’o-Bartley et al., 1993; Craig
et al., 2004). Though we considered
increasing nesting trends at smaller
nesting beaches (Seminoff et al., 2015),
we conclude that such trends provide
little resilience to the DPS, which is
endangered by habitat destruction and
modification, overexploitation,
predation, inadequate regulatory
mechanisms, fisheries bycatch, marine
debris, and climate change.
Regarding the comments on the
composition of the DPS, turtles nesting
in American Samoa and French
Polynesia commonly exhibit haplotypes
from Clade III, which are uncommon in
other DPSs; satellite tagging data
indicate that these turtles share foraging
habitat in Fiji, French Polynesia, and
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American Samoa (Seminoff et al., 2015;
NMFS, unpublished data, 2015).
Therefore, we include turtles nesting
and foraging in American Samoa and
French Polynesia in the Central South
Pacific DPS.
Comment 24: One commenter
reported reef damage as a result of the
recent tsunami in American Samoa and
requested a discussion of the impacts.
Response: Tsunamis can destroy or
modify nesting beach and marine
habitats for green turtles. They deposit
marine debris, which can entangle or be
ingested by foraging turtles, on reefs.
After the tsunami of September 29,
2009, over 8,000 pounds of debris were
removed from 74 km of coral reef
habitat in American Samoa (https://
coralreef.noaa.gov/aboutcrcp/news/
featuredstories/dec09/asdebris/
welcome.html). The frequency and
intensity of storms are likely to increase
as a result of climate change (IPCC,
2014) and are considered an increasing
threat to the DPS. We considered these
threats in our analysis of the Central
South Pacific DPS, which we list as
endangered.
Comments on the Central North Pacific
DPS
Comment 25: We received many
comments on the listing determination
for the Central North Pacific DPS. Most
commenters agreed with our listing
determination, stating that the DPS
should be listed under the ESA because
it still faces numerous threats. One
commenter stated that the Services
cannot rely on politics or personal
observation but must list the DPS as
threatened (and cannot delist it) to
comply with ESA, which requires us to
base our listing determinations on the
best available scientific and commercial
data. Some commenters stated that the
DPS should be listed as endangered
because of the numerous threats and
small nesting population abundance.
Several commenters stated that the DPS
should be delisted because of increasing
nesting trends, observations of
increasing in-water sea turtle
abundance, or to reward conservation
efforts and encourage similar efforts
throughout the Pacific Islands. Several
commenters questioned why the PVA
and critical risk threshold were not used
to determine the status of the DPS. Two
commenters requested that NMFS
perform in-water surveys to assess
abundance prior to making a
determination. The State of Hawai1i
Department of Land and Natural
Resources (Hawai1i DLNR) expressed
support for the conservation efforts of
the Services in partnership with Hawai1i
DLNR, nonprofit organizations, and
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communities, and stated that their
Marine Wildlife Program, funded by
NMFS’ Species Recovery Grants to
States, has distributed over 200,000
barbless circle hooks to the fishing
community.
Response: Please see our responses to
Comment 3 (regarding the listing
determination process, rewarding
conservation efforts, PVAs, and critical
risk thresholds), Comment 4 (regarding
turtle observations), and Comment 9
(regarding perceived data limitations
and requests for additional surveys).
We considered the increasing nesting
trend, along with the small nesting
population size and limited spatial
structure, during our evaluation of the
demographic factors. We concluded that
these demographic parameters do not
demonstrate adequate resilience against
the threats of habitat loss and
modification, disease and predation,
inadequate regulatory mechanisms,
bycatch, marine debris, boating
activities, climate change, and limited
nesting site diversity (i.e., 96 percent of
nesting occurs at one low-lying atoll).
For these reasons, we must list the DPS
under the ESA. We do not list the DPS
as endangered because of the positive
nesting trend, conservation efforts, and
the success of ESA protections in
reducing the impact of some threats
(especially the harvest of turtles and
eggs). We list the DPS as threatened
because it is likely to become
endangered within the foreseeable
future throughout all or a significant
portion of its range because of the
section 4(a)(1) factors, listed above. We
made this determination solely on the
basis of the best available scientific and
commercial data (identified in the
proposed rule and Status Review
Report) and after taking into account the
conservation efforts of the State of
Hawai1i, which include a variety of
effective outreach and education
programs, including the distribution of
barbless circle hooks to reduce hook and
line bycatch of turtles.
Comment 26: We received many
comments on the section 4(a)(1) factors
for the Central North Pacific DPS. Many
commenters identified threats to the
Central North Pacific DPS, including
entanglement in and ingestion of marine
debris, accidental take in fisheries, FP,
climate change, coastal development
and beach use in the main Hawaiian
Islands (MHI), and harvest of turtles and
eggs. One commenter identified an
increase in nesting turtles at Turtle Bay
on Oahu but stated that nests are
destroyed by high surf, beach driving,
and beach usage (including using a nest
as a fire pit) and that turtles are
threatened by poaching, harassment,
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pollution, and bycatch. One commenter
requested a discussion of the impacts on
the DPS caused by pollution around
Johnston Atoll, vessel groundings in the
Northwestern Hawaiian Islands (NWHI),
natural disasters, and random variation
and stochasticities. One commenter
requested a discussion of how impacts
to individuals affect the DPS (e.g., how
the loss of Whale-Skate Island impacted
the DPS). One commenter stated that
there is little that can be done to protect
known nesting beaches from the public,
unless all development activities come
to a halt and are reversed. One
commenter described an increase in
turtles at the Honokohau Harbor since
poaching ended about a decade ago.
One commenter stated that hatchlings at
Moomomi have no significant predators.
Several commenters stated that FP is not
a threat to the DPS. One commenter
stated that Hawai1i-based longline
fisheries are not a threat to green turtles
of any DPS and that the new listing
should not result in the reinitiation of
ESA section 7 consultations. Hawai1i
DLNR identified several threats to
nesting habitat including, in the NWHI,
the inundation of nests due to sea level
rise and in the MHI, coastal
development, vehicular and pedestrian
traffic, beach pollution and
modification, and erosion. They also
identified fishing and FP as threats.
Regarding inadequate regulatory
mechanisms, Hawai1i DLNR stated a
need to increase coordination and data
sharing; they stated their intention to
compare existing State regulations to
Federal regulations to identify needs or
gaps and to work with NOAA fisheries
to develop a State management plan.
Hawai1i DLNR provided information on
laws regulating the use of gill nets that
have reduced bycatch by requiring
inspection every 2 hours and removal
after 4 hours; lay nets (a type of gill net)
must be registered and tagged, and
usage is restricted to one at a time, only
during daylight hours, and in depths of
less than 25 feet (for non-commercial
users).
Response: Please see our responses to
Comments 6 and 8 for general
information on the section 4(a)(1)
factors and the impacts of climate
change. We appreciate the State of
Hawai1i DLNR’s comments and
continued efforts to conserve green
turtles. As indicated by the State of
Hawai1i DLNR and other commenters,
the Central North Pacific DPS is
threatened by the following 4(a)(1)
factors, described in detail in the Status
Review Report and proposed rule:
Present and threatened habitat loss and
degradation, disease and predation,
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inadequate regulatory mechanisms,
fisheries bycatch, marine debris, vessel
activities, limited spatial diversity, and
climate change. We do not have
adequate data on poaching to assess the
impact of this threat on the DPS.
Regarding the comment on the
destruction or modification of habitat at
Johnston Atoll, previous military
activities, including nuclear testing and
chemical weapons incineration,
polluted the beaches and surrounding
marine ecosystem (https://www.fws.gov/
refuges/profiles/index.cfm?id=12515).
Balazs (1985) described the potential
impacts, which include petroleum
contamination that adversely affects
turtles by external fouling, ingestion,
and interference with olfactory
perception and food supply (CostonClements and Hoss, 1983). Underwater
explosions of previously unexploded
ordnances destroy turtle foraging
habitats (Balazs, 1985). Radioactive
particles were spread over a portion of
Johnston Atoll and nearshore waters
and potentially concentrated in algae
eaten by turtles (Balazs, 1985).
Additional discharges include heavy
metals, nerve gas, chemical weapons,
herbicides, organophosphorus
compounds, and the unknown contents
of discarded 55 gallon drums, which
have the potential to directly impact
turtles and contaminate the turtles’
forage base (Balazs, 1985).
Regarding the comment on
destruction or modification of habitat by
vessel groundings, such incidents
damage foraging habitat and reefassociated organisms (i.e., green turtles’
prey base) and release contaminants
(e.g., fuel, hazardous substances, etc.),
which threaten foraging habitat and
prey (Keller et al., 2009). Such
groundings are possible wherever ships
navigate through shallow waters (i.e.,
nearshore areas throughout the
Hawaiian Archipelago). Thirteen
reported vessel groundings have
occurred in the NWHI in the last 60
years (Keller et al., 2009); recent
groundings in the MHI include the 2005
M/V Cape Flattery and 2009 USS Port
Royal incidents. It is impossible to
predict the number or severity of future
vessel groundings; however, given the
data on previous groundings, it is
reasonable to expect additional
groundings near green turtle foraging
habitat, which occurs throughout the
Hawaiian Archipelago. Like past events,
these groundings are expected to modify
foraging habitat and reduce the amount
of available prey in the area.
Regarding the comment on loss of
habitat at Whale-Skate Island, the
disappearance of Whale-Skate Island at
French Frigate Shoals (FFS) was due to
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erosion from severe winter storms in
1998 and 1999 (Antonelis et al., 2006;
Lowry et al., 2011). We do not know
how the disappearance of Whale-Skate
Island impacted the population because
regular surveys had not been performed
on that island. Turtles may have nested
at neighboring islets of FFS; however,
some may not have nested or may have
nested in suboptimal habitats. Survey
data indicate that the disappearance of
Whale-Skate Island did not result in
unusual increases in nesting at East
Island in 1998, 1999, or 2000 relative to
prior years (Humburg and Balazs, 2014).
Furthermore, radio telemetry of four
nesting females and four females at Trig
and Whale-Skate Islands demonstrated
that the turtles remained near these
islands and did not travel the 9 km to
East Island within a nesting season; over
multiple years, only 33 percent of males
and 24 percent of females strayed from
Trig and Whale-Skate Islands (Dizon
and Balazs, 1982). The authors
concluded that once imprinted on a
nesting beach, a green turtle is unlikely
to switch its breeding habitat (Dizon and
Balazs, 1982). Dizon and Balazs (1982)
also emphasized the importance of
maintaining foraging habitats and
nesting beaches as free from disturbing
influences as possible. Coastal
development may result in the loss or
modification of nesting and basking
beaches and the nearshore habitats
necessary for the reproductive success
of the DPS.
Regarding the comment that little can
be done to protect nesting beaches
without halting or reversing all
development, our listing determination
is based on whether the species meets
the definition of threatened or
endangered, not whether activities
could be performed. Nevertheless, we
note that less drastic measures (such as
minimizing impacts of artificial lighting,
construction, vehicular and pedestrian
traffic, and pollution on beaches during
nesting seasons) are effective for
protecting nesting beaches.
Regarding the comments on
predation, introduced species, such as
mongoose, rats, dogs, feral pigs, and
cats, prey on eggs and hatchlings at
some nesting beaches in the MHI.
Although hatchlings at Moomomi may
have no significant land predators, they
are likely to encounter predators at sea,
including sea birds, sharks, and other
large fish.
Regarding the comments on FP, we
agree with the commenters who
identified FP as a threat to the DPS. In
a study of 3,732 green turtle strandings
in Hawai1i between 1982 and 2003, FP
was the most common cause of
stranding (28 percent) and had a
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specific mortality rate of 88 percent
(Chaloupka et al., 2008).
Regarding the comments on bycatch
and the inadequacy of existing
regulatory mechanisms, after FP, fishing
line and gillnet entanglement are the
leading cause of stranding and mortality
of green turtles in Hawai1i (Work et al.,
2015). The State of Hawai1i has enacted
important laws for gill and lay net
fisheries. Requiring inspection of nets
every 2 hours reduces, but does not
eliminate, bycatch risk; entanglement
and drowning still occur and are likely
underreported (NMFS, 2012; Francke,
2013). As stated in the proposed rule,
measures employed by U.S. longline
fisheries have reduced green turtle
interactions to negligible levels;
however, reinitiation of consultation is
still required if a new species is listed
and may be affected by a Federally
permitted action (50 CFR 402.16(d)).
Regarding the comment on natural
disasters, since 1950, more than 50
hurricanes, tropical storms, and tropical
depressions have affected Hawai1i. We
expect climate change to increase the
frequency and intensity of such events
(IPCC, 2014). Storm events during the
nesting season are likely to disrupt
green turtle nesting activity and
hatchling production by flooding or
exposing nests and altering thermal
conditions (Van Houtan and Bass,
2007), resulting in reduced cohort
abundance. These events can also
degrade turtle nesting habitat by
reducing or eliminating sandy beaches
and creating barriers to adult and
hatchling movements. A single event is
unlikely to result in large-scale losses
over multiple nesting seasons; however,
the increased frequency of such events
combined with the effects of sea level
rise increase the likelihood of this
scenario (Baker et al., 2006; Keller et al.,
2009; Reynolds et al., 2012).
Regarding the comment on
stochasticities, irregular, random, and
stochastic events, such as those
described above, increase the extinction
risk of small populations (Schaffer,
1981; Wright and Hubbell, 1983; Lande
et al., 2003). Stochastic perturbations
(such as demographic, environmental,
and genetic stochasticities and natural
catastrophes) may result in extinction
even in an environment that, on
average, is favorable for growth and
persistence (Schaffer, 1981). Therefore,
we are especially concerned about the
effects of such threats on the Central
North Pacific DPS.
Comment 27: We received many
comments regarding the impact of
climate change on the Central North
Pacific DPS. One commenter did not
think that climate change would affect
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nesting at FFS because the turtles would
find alternative nesting sites and
because nesting across the season and
years provides resilience against storm
events. One commenter asked how
coastal development and climate change
together would affect the DPS. Hawai1i
DLNR requested additional information
regarding the projected timeframe when
FFS might be inundated and the nesting
sites unavailable.
Response: Please see our responses to
Comments 8 (regarding climate change)
and 24 (responses to nesting habitat
loss). The following information on
climate change is specific to the Central
North Pacific DPS.
Baker et al. (2006) estimated that the
islets of FFS would lose 15 to 65 percent
of area under the median sea level rise
scenario (0.48 m) and 26 to 99 percent
of area under the maximum sea level
rise scenario (0.88 m) by 2100. Sea level
rise is expected to continue after 2100,
and virtually all land at FFS would be
submerged at a sea level rise of 2 m
(Baker et al., 2006). East Island, where
50 percent of nesting occurs at FFS
(Balazs et al., 2015), would persist the
longest; however, it is not clear that
displaced nesters from other areas of
FFS (i.e., the other 50 percent of nesting)
would begin nesting at East Island.
Dizon and Balazs (1982) conclude that
once imprinted on a nesting beach, a
green turtle is unlikely to switch its
breeding habitat.
Using a simulation model, Tiwari et
al. (2010) estimated carrying capacity at
East Island under current conditions
and based on predictions of sea level
rise by 2100. With 30 percent loss of
nesting habitat and a 20 percent
increase in mortality (to simulate the
effects of sea level rise and crowding),
carrying capacity would be reached at
60,000 to 100,000 nests (Tiwari et al.,
2010). The model considered all
available area on the island suitable for
nesting (Tiwari et al., 2010); however,
Balazs (1980) reports that very few
turtles have nested in 5 of 17 available
areas at East Island, despite apparently
suitable habitat. Therefore, while there
appears to be adequate suitable habitat
at East Island, it is uncertain how many
turtles would use this habitat for nesting
if their current nesting habitat were lost.
Reynolds et al. (2012) examined sea
level rise scenarios of 0.0 to 2.0 m,
focusing on mean high water, which is
lower than the spring tide estimates
used by Baker et al. (2006) and Tiwari
et al. (2010). At FFS, they projected 12
percent land loss at 1.0 m sea level rise
and 32 percent land loss at 2.0 m sea
level rise, which would result in the
complete submergence of five of the
nine islets (Reynolds et al., 2012).
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Reynolds et al. (2012) concluded that
the decreases in nesting areas at FFS are
likely to limit nesting habitat for the
green turtles if philopatry (i.e., natal
beach fidelity) prevents their dispersal.
They also predicted that along the
coastline, groundwater levels and turtle
nesting density will likely change as a
result of sea level rise and that these
changes, along with increasing
temperatures, would negatively impact
green turtle nesting (Reynolds et al.,
2012). They identified the need for
additional climate change adaptation
strategies and planning for marine
wildlife dependent on the terrestrial
breeding habitats of FFS and Pearl and
Hermes Atoll, which are likely to be
inundated before 2100 (Reynolds et al.,
2012).
It must be noted that these studies
used a passive, inundation or ‘‘bathtub’’
model, which is conservative and does
not consider storm surges or the
projected increases in storm intensity
and frequency (Hawkes et al., 2009). In
addition, the flooding scenarios do not
consider erosive recession of the
shoreline causing land loss, long-shore
drift redistribution of sediments
(resulting in both gains and losses of
land area), net permanent loss of sand
volume offshore, and onshore sand
deposition by overwash during high
wave activity (Baker et al., 2006).
These considerations appear to be
important in Hawai1i, where historical
shoreline changes (i.e., coastal erosion)
are one to two orders of magnitude
greater than sea level rise (Romine et al.,
2013). In addition, erosion rates vary
among the Hawaiian Islands as a result
of sea level rise, sediment availability,
anthropogenic changes, littoral
processes, wave conditions, and coastal
and nearshore geomorphology (Romine
et al., 2013). At 9 of 10 sites in the MHI,
the shorelines are projected to retreat 1
to 24 m by 2050 and 4 to 60 m by 2100
(Anderson et al., 2015). Sea level rise is
likely to lead to doubling of the
shoreline recession by 2050 (and 2.5
times by 2100) as compared to
extrapolations based on historical
erosion (Anderson et al., 2015). In
addition, changes in storminess, wave
climate, sediment availability, and
climate related modifications in reef
geomorphology will enhance erosion
and inundation of low-lying coastal
areas (Anderson et al., 2015).
The MHI may also be exposed to
‘‘coastal squeeze,’’ i.e., as sea level rises,
the landward migration of nesting
beaches (and available nesting habitat)
is inhibited due to coastal development
and beachfront barriers (Fish et al.,
2005; Fish et al., 2008). Therefore, as
one commenter suggests, habitat
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modification due to coastal
development is likely to be exacerbated
by sea level rise.
In addition to sea level rise, we
considered the effects of increased
temperatures (including nest failure and
skewed sex ratios), ocean acidification,
and the impact of sea level rise on the
movement of hatchlings, oceanic
juveniles, and adults. Hawkes et al.
(2014) conclude that breeding ecology
may be fundamentally affected by
climate change and that altered thermal
regimes may have the most dramatic
and insidious effects on sea turtles. This
is especially a concern in Hawai‘i,
where from 1990 to 2014, the sea
surface temperature warmed an average
of 0.034 °C annually (roughly three
times the observed global average over
this period), a change that is likely to
result in the cessation of basking, an
adaptive trait exhibited by turtles of the
Central North Pacific DPS, by 2100 (Van
Houtan et al., 2015).
Comment 28: Two commenters
requested exemptions to existing take
prohibitions. Their comments suggested
that the Services should make specific
findings for each of the threatened DPSs
that protective regulations are necessary
and advisable. The State of Hawai‘i
DLNR recommended that the Services
partner with DLNR and communities to
develop appropriate exemptions to take
prohibitions under section 4(d) of the
ESA to allow for more flexible,
responsive, and enhanced management.
Response: As noted in the proposed
rule and explained further in response
to Comment 7, longstanding protective
regulations apply the prohibitions of
Section 9 (including the ‘‘take’’
prohibitions) to threatened sea turtles,
with limited exceptions, and continue
to remain in effect (50 CFR 17.42(b),
223.205, 223.206, and 223.207).
Modifications to such regulations are
beyond the scope of this rule, which
finalizes the listing determinations for
green turtle DPSs. The Services may
extend the prohibitions of section 9
through protective regulations that
apply generally to a group of threatened
species and are not required to make
species-specific determinations as new
species are listed. Sweet Home Chapter
of Communities for a Great Oregon v.
Babbitt, 1 F.3d 1 (D.C. Cir. 1993),
modified on other grounds on reh’g, 17
F.3d 1463 (D.C. Cir. 1994), rev’d, 515
U.S. 687 (1995). While we noted the
existence of the existing regulations in
the proposed rule to apprise the public
of the full regulatory landscape for green
turtles, we did not undertake a review,
extension or modification of those rules,
which are entirely separate. This is
consistent with the approach we took
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for the listing determinations of nine
DPSs of loggerhead sea turtles (76 FR
58868, September 22, 2011).
Comment 29: We received several
comments on the recovery (or lack
thereof) of the Central North Pacific
DPS. Several commenters stated that the
DPS was recovered; however, one
commenter stated that the DPS has not
recovered because it has not met the
recovery criteria.
Response: Please see our response to
Comment 16. Because the commenters
raised the issue of whether the species
had met its recovery criteria, we provide
the following information.
Prior to the identification and
proposed listing of the Central North
Pacific DPS, the Services published the
Recovery Plan for U.S. Pacific
Populations of the Green Turtle (i.e., the
Recovery Plan; NMFS and USFWS,
1998). The Hawaiian population was
included in the Recovery Plan. One of
the recovery criteria has been met: We
have identified all regional stocks to
source beaches. The other recovery
criteria have not been met. The DPS
does not average 5,000 females nesting
annually. Although the nesting
population at East Island has increased
over the past four decades, 25 years of
monitoring data are not available for
other nesting beaches. There are
numerous threats at key foraging areas,
where population trend data are not
available. First priority tasks that have
not been implemented include:
Determination of distribution and
abundance of post-hatchlings;
assessment and prevention of
degradation of reefs by boating and
diving activities; and prevention of
degradation of reefs by pollution,
coastal erosion, siltation, and blasting.
There is no management plan to
maintain sustained populations of
turtles in the absence of ESA
protections, and there are no
international agreements to reduce
bycatch (and bycatch mortality) in
foreign longline fisheries.
Comment 30: We received several
comments on the carrying capacity of
the Central North Pacific DPS. Several
commenters stated that the DPS is
overpopulated or has reached carrying
capacity (K), citing Chaloupka and
Balazs (2007) or similar publications
and disagreeing with Kittinger et al.
(2013).
Response: Balazs et al. (2015)
summarized all existing data and
knowledge on the demographic
variables of Hawaiian green turtles.
After reviewing all data, from 1973 to
2012, they concluded that the Hawaiian
green turtle is not at carrying capacity
(Balazs et al., 2015). Specifically, they
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found that the population growth rates
from 1973 to 2003 (Chaloupka et al.,
2008), 1973 to 2004 (Chaloupka and
Balazs, 2007), and 1973 to 2012 ‘‘are
statistically indistinguishable,
indicating that the last 10 years have not
demonstrated any slowing of population
growth or negative density dependence
as some predicted (e.g., Chaloupka and
Balazs, 2007)’’ (Balazs et al., 2015). The
authors concluded that the population
is ‘‘still growing at a robust rate and
underscore historical analyses (e.g.,
Kittinger et al., 2013; Van Houtan and
Kittinger, 2014) that suggest the
population was significantly more
abundant historically’’ (Balazs et al.,
2015). Because the Balazs et al. (2015)
paper reviews all current and historical
demographic data, we consider it the
best available scientific data. We
provide the following information to
further explain this complex topic and
resolve any perceived disagreement
regarding available data.
There have been numerous studies on
carrying capacity in the Hawaiian green
turtle population, focusing on foraging,
nesting site, and overall carrying
capacity (e.g., Balazs and Chaloupka,
2004a; 2004b; 2006; Chaloupka and
Balazs, 2007; Snover et al., 2008; Tiwari
et al., 2010; Wabnitz et al., 2010).
Bjorndal et al. (2000) were the first to
evaluate compensatory responses
resulting from density-dependent effects
for a green turtle population (i.e., sea
turtles foraging in a Bahamian bay of
approximately 20 km2). They found
three lines of evidence to support a
density-dependent effect: Significant
inverse correlation between population
density and mean annual growth rate;
correlations between condition index
and mean annual growth rates (positive)
and population density (negative); and
the population abundance fluctuated
around carrying capacity at levels likely
to experience density-dependent effects
(i.e., K of approximately 100 turtles;
Bjorndal et al., 2000). Balazs and
Chaloupka (2004a) applied this
approach to five foraging areas in
Hawai‘i: Midway Atoll; Kane’ohe Bay,
O’ahu; Pala’au, Moloka’i; and Kiholo
Bay and Punalu’u Bay, Hawai‘i. They
found significant, long-term declines in
size-specific growth rates at Pala’au,
Kiholo Bay, and Punalu’u Bay, which
may reflect limited food availability or
nutritional quality (Balazs and
Chaloupka, 2004a). Balazs and
Chaloupka (2004a) did not state that
carrying capacity had been reached at
any location; instead, they interpreted
these data to mean that carrying
capacity for Kiholo and Punalu’u
‘‘might’’ have been reached. The authors
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concluded that density-dependent
effects are not well understood and
warrant further investigation (Balazs
and Chaloupka, 2004a). Wabnitz et al.
(2010) used an ecosystem model to
confirm that the green turtle aggregation
has reached carrying capacity at Kaloko¯
Honokohau National Historical Park.
Based on these studies, we conclude
that foraging carrying capacity has likely
been reached at this one location on the
Big Island of Hawai‘i, which may be
ecologically representative of green
turtle habitats spanning 100 km on the
west coast of that island (Balazs et al.,
2015). This does not, however, mean
that green turtles have reached carrying
capacity in their foraging habitat
throughout the Hawaiian Archipelago.
Numerous publications identify current
or historically important foraging areas
on: Kaua’i (Princeville, northwestern
coastal areas of Na Pali, and southern
coastal areas from Kukuiula to
Makahuena Point); O’ahu (Kawela Bay,
Kailua and Kaneohe Bays, northwestern
coastal areas from Mokuleia to
Kawailoa, Maunalua Bay, West Beach,
and Sandy Beach); Moloka’i (southern
coastal areas from Kamalo to Halena and
Pala’au); Lana’i (northern and
northeastern coastal areas bordering
Kalohi and Auau Channels, Keomuku,
Kuahua, and Polihua Beach); Maui
(Hana District and Paia, Kahului Bay,
Honokowai, Maliko Bay, and Olowalu);
Hawai‘i (Kau and North Kohala
Districts, and Kapoho); and the NWHI
(Necker Island, FFS, Lisianski Island,
Pearl and Hermes Reef, Laysan Island,
Midway Atoll, and Kure Atoll) (Balazs,
1980; Balazs, 1987; Arthur and Balazs,
2008). Furthermore, green turtles not
only forage on native seagrass and algal
species but also thrive on nonnative
species (Arthur and Balazs, 2008;
Russell and Balazs, 2009; McDermid et
al., 2015). Finally, if foraging carrying
capacity were reached, we would expect
nutritional constraints to lead to
reduced nesting frequency due to
density-dependent effects resulting from
competition for limited food resources
(Bjorndal et al., 2000). However, the 3
to 4 year female remigration interval has
remained constant since 1973 (Balazs
and Chaloupka, 2004b; 2006; Balazs et
al., 2015), indicating that females do not
spend additional time foraging before
returning to nest. For these reasons, we
conclude that the DPS has not reached
foraging carrying capacity.
One study has also considered nesting
carrying capacity. Tiwari et al. (2010)
used a simulation model to estimate
carrying capacity on the nesting beach
of East Island, FFS. They found that East
Island is well below carrying capacity
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and is capable of supporting a larger
nesting population (Tiwari et al., 2010).
Therefore, we conclude that the DPS has
not reached nesting carrying capacity.
Other studies considered overall
carrying capacity (Balazs and
Chaloupka, 2004a; 2006; Chaloupka and
Balazs, 2007; Snover et al., 2008). Three
publications on modeling cited the longterm increase in the abundance of
nesting females at East Island and a
constant level of new recruits as
possible evidence of nearing carrying
capacity (Balazs and Chaloupka, 2004a;
2006; Chaloupka and Balazs, 2007);
however, these studies were not
conclusive and did not claim that the
population was at carrying capacity
(Balazs and Chaloupka, 2004a; 2006;
Chaloupka and Balazs, 2007; Snover et
al., 2008). There were also several issues
with these analyses. For example,
Chaloupka and Balazs (2007) indicated
the data were uninformative for K and
that K was estimated with significant
uncertainty. Furthermore, their model
did not indicate that the population was
near K because the plot of nester
abundance showed an exponentially
growing population (Snover et al.,
2008).
Finally, since the original
consideration of carrying capacity in
2004, the abundance of nesting females
at East Island has continued to increase
from an estimated average of 338
nesting females (2000–2003) to an
estimated average of 464 nesting females
(2009–2012; Humburg and Balazs,
2014). Had carrying capacity been
reached in 2004, we would have
expected nesting abundance and
population growth rates to level off or
decrease by now.
Kittinger et al. (2013) analyzed data
from middens (i.e., domestic waste
sites) and observational data from
historical sources, including interviews
with community elders who described
the harvest of nesting turtles at Kaua’i
beaches prior to 1960. It is unlikely that
the community elders would have
confused nesting and basking turtles, as
suggested by some commenters. The
Hawaiian Gazette (July 19, 1912) cited
Judge Kapoikai watching ‘‘baby turtles
scuttle down the beach’’ in Maui;
hatchlings are not likely to be confused
with other life stages. These examples
are indicative of nesting in the MHI
prior to ESA protections. Van Houtan
and Kittinger (2014) analyzed nearly
three decades (1948 to 1974) of data on
commercial landings data from a green
turtle fishery in the MHI. These data
indicate that the small-scale fishery and
local market demand were key factors in
the decline of Hawaiian green turtles,
which were already significantly
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depleted by prior exploitation (Van
Houtan and Kittinger, 2014).
In summary, we conclude that
historically the DPS was significantly
more abundant and has not yet reached
foraging, nesting, or overall carrying
capacity.
Comment 31: One commenter
indicated that the determination on the
Central North Pacific DPS is
inconsistent with the 2012 International
Union for Conservation of Nature
(IUCN) Red List of Threatened
SpeciesTM (i.e., Red List) assessment,
which categorized the Hawaiian
subpopulation of green turtles as ‘‘least
concern.’’
Response: Species classifications
under the ESA and Red List are not
equivalent; data standards, criteria used
to evaluate species, and treatment of
uncertainty are not the same, nor is the
legal effect.
Unlike the ESA, the Red List is not a
statute and is not a legally binding or
regulatory instrument. It does not
include legally binding requirements,
prohibitions, or guidance for the
protection of threatened (i.e., critically
endangered, endangered, or vulnerable)
taxa (IUCN, 2012). Rather, it provides
taxonomic, conservation status, and
distribution information on species. The
Red List is based on a system of
categories and criteria designed to
determine the relative risk of extinction
(https://www.iucnredlist.org/about/
introduction), classifying species in one
of nine categories, as determined via
quantitative criteria, including
population size reductions, range
reductions, small population size, and
quantitative extinction risk. The ESA
requires the Services to list species if
they are endangered or threatened by
any or a combination of the section
4(a)(1) factors (16 U.S.C. 1533(a)(1)), as
based on the best available scientific
and commercial data, which may
include a qualitative threats analysis.
Thus, the ESA and Red List are
inherently different. To the extent that
the information described within Red
List is relevant to our determination, we
do not agree that the DPS ‘‘is
approaching full recovery to preexploitation levels’’ (IUCN, 2012). The
IUCN cites the modeling study by
Chaloupka and Balazs (2007), which has
been refuted by more recent and
complete data (Balazs et al., 2015),
which we consider to be the best
available scientific data. In response to
Comment 30, we identify the problems
with the Chaloupka and Balazs (2007)
study. Their pre-exploitation estimate of
320,000 turtles is likely an
underestimate because it is based solely
on small-scale fishery landings from
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1944 to 1973; however, broad-scale
commercial exploitation of the
population began in the early 19th
century and may have been quite
extensive (Amerson, 1971; Van Houtan
and Kittinger 2014). In addition,
traditional exploitation occurred for
centuries prior (Chaloupka and Balazs,
2007; Kittinger et al., 2013). Therefore,
it is likely that the DPS was significantly
more abundant historically (Kittinger et
al., 2013; Van Houtan and Kittinger,
2014; Balazs et al., 2015).
We agree with the IUCN’s
identification of the following threats to
the DPS: Restricted location (i.e.,
utilization of one rookery); erosion and
habitat loss throughout the NWHI;
climate impacts; illegal harvesting; FP,
which causes debilitating tumors of the
skin and internal organs; coastal
development and urbanization, fishing
line ingestion or entanglement from
recreational shore based fisheries,
entanglement in gill nets, vessel
collisions, miscellaneous hazards such
as spear wounds; and climate change
(increasing sea surface temperature and
increasing intensity and frequency of
severe storms) (https://
www.iucnredlist.org/details/16285718/
0). Because of these factors, the Central
North Pacific DPS is likely to become
endangered within the foreseeable
future throughout all or a significant
portion of its range.
Comment 32: One commenter stated
that the recapture of three Central North
Pacific turtles in Japan, the Marshall
Islands, and the Philippines out of 7,360
total recaptures signifies adequate gene
flow to homogenize populations (i.e.,
the populations are not genetically
discrete).
Response: We have not detected any
shared mtDNA haplotypes between the
Central North Pacific DPS and the
Central West Pacific or the East IndianWest Pacific DPSs. If gene flow had
been adequate to homogenize the DPSs,
we would expect shared haplotypes and
consistent haplotypic frequencies in
these DPSs. Furthermore, in 50 years of
extensive nesting surveys in the
Hawaiian Archipelago, no recaptures or
haplotypes from the Central West or
East Indian-West Pacific DPSs have
been encountered.
Comment 33: Several commenters
stated that green turtles were consuming
too much limu (i.e., Hawaiian algae).
Response: The extent of turtle
consumption of limu is not relevant to
our listing determination because it
does not represent a threat to turtles;
however, we believe a fuller
understanding of this issue is important
to promoting conservation of green
turtles and dispelling misinformation.
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20075
We provide the following information
because reductions in limu are likely
caused by other species. Nonnative
algae pose one of the greatest threats to
native algae by competing for space.
Additional threats to limu include:
storm water discharges, pollution,
development, and overharvesting by
humans (Wianecki, 2010; Lapointe and
¯
Bedford, 2011). At Kaloko-Honokohau
National Historical Park, Wabnitz et al.
(2010) determined that sea urchins have
the greatest impact (45 percent) on algal
resources, followed by herbivorous fish
(14.4 percent), with green turtles only
accounting for 0.2 percent of total
herbivory consumption.
Green turtles are selective foragers
that target specific species (Balazs,
1980). Only two of these species (U.
fasciata and C. edule, which are both
common; Abbott, 1984) are favored by
humans. In fact, green turtles may
provide benefits to limu by consuming
nonnative algae (Arthur and Balazs,
2008; Russel and Balazs, 2009).
Comment 34: One commenter stated
that the increase in green turtles is
linked to an increase in sharks and
shark attacks on humans. One
commenter stated that green turtles
damage coral in Kaneohe Bay, Hawai‘i.
Response: As we noted in our
response to Comment 33, our listing
determination must be based solely on
a review of the status of the species;
extraneous considerations are not
relevant. Nevertheless, the best available
scientific and commercial data do not
link the increasing abundance of green
turtles to increasing shark abundance or
attacks (https://
www.honolulumagazine.com/HonoluluMagazine/February-2016/Why-AreThere-So-Many-Shark-Attacks-inHawaii/). Furthermore, green turtles
likely improve the overall health of
coral reefs in Kaneohe Bay by
controlling the overgrowth of nonnative
algae (Pandolfi et al., 2005; Russel and
Balazs, 2009).
Comments on the East Pacific DPS
Comment 35: The Instituto del Mar
´
del Peru suggested breaking the East
Pacific DPS into two DPSs and listing
the southeast Pacific as endangered for
the following reasons: (1) While there is
´
an increasing trend at Michoacan
nesting beaches (Delgado-Trejo and
Alvarado-Diaz, 2012), there have not
´
been substantial increases at Galapagos
nesting beaches in the past 15 years
(IAC, 2011, 2012, 2013, 2014); (2) Peru
lists the species as endangered (D.S. No.
004–2014–MINAGRI) and prohibits
hunting, capture, possession, and
transportation of specimens, products
´
and/or byproducts; in addition, Peru is
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a signatory of several international
agreements for the conservation of sea
turtles that developed their work plan
and resolutions on the basis of the IUCN
Red List category of endangered
(Seminoff, 2004); (3) southeast Pacific
turtles face numerous threats including
bycatch, harvest, illegal trade of turtle
meat, oil, and derivatives (Alfaro
Shigueto et al., 2010, 2011; de Paz et al,
2002); and (4) increasing threats include
coastal development, artisanal fisheries,
and aquaculture, which occur close to
foraging areas and cause habitat
degradation.
Response: We appreciate the Instituto
´
del Mar del Peru’s comments and efforts
to conserve sea turtles. For differences
between the ESA and IUCN Red List,
please see Comment 31. Turtles of the
East Pacific DPS share phenotypic traits,
including size (i.e., small) and color
(i.e., black), that are not found in other
Pacific DPSs. They share haplotypes
from Clade VIII and do not exhibit
haplotypes from other clades (Seminoff
et al., 2015). There is significant genetic
structure within the DPS (i.e., four
regional stocks; Seminoff et al., 2015);
however, the divergence among stocks
is much less than the divergence among
DPSs, as indicated by nuclear (Roden et
al., 2013) and mtDNA (Seminoff et al.,
2015). Furthermore, the most significant
differences do not occur between turtles
´
nesting at Mexican and Galapagos
beaches, but rather between the turtles
nesting at the Revillagigedos Islands
(Mexico) and all others (Seminoff et al.,
2015). Genetically, females nesting at
´
Michoacan (Mexico) are more similar to
´
females nesting in the Galapagos Islands
than to those nesting at the
Revillagigedos Islands (Seminoff et al.,
2015). Satellite tracking indicates that
´
turtles nesting in Michoacan, Costa
´
Rica, and the Galapagos Islands
converge at foraging areas in Central
America (Hart et al., 2015), and at least
´
one Michoacan turtle was recovered as
´
far south as Colombia (Alvarado-Dıaz
and Figueroa, 1990). Based on the best
available scientific and commercial data
which indicates connectivity within the
DPS, we conclude that the East Pacific
DPS is discrete and significant and
should not be further divided.
Conservation efforts have led to
increasing abundance at numerous
nesting sites throughout the range of the
DPS. In addition to the increasing trends
´
at Michoacan, we found stable to
slightly increasing nesting trends at
´
Galapagos nesting beaches, which host
the second largest nesting aggregation of
the DPS (Seminoff et al., 2015). We do
not find that the East Pacific DPS is
presently in danger of extinction;
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however, it is likely to become
endangered within the foreseeable
future throughout all or a significant
portion of its range due to habitat loss
and degradation, overexploitation,
disease and predation, inadequate
regulatory mechanisms, fisheries
bycatch, marine debris, boat strikes, red
tide poisoning, and climate change.
Therefore, we finalize our proposal to
list the East Pacific DPS as threatened
under the ESA.
Summary of Changes From the
Proposed Rule
We make the following changes from
the proposed rule:
• We change the boundaries of the
ranges for the North and South Atlantic
DPSs because all islands of the U.S.
Virgin Islands (not just St. Croix) should
be included in the range of the South
Atlantic DPS, as indicated by genetic
and other data presented in the Status
Review Report.
• In the proposed rule, we
erroneously listed the California and
Oregon border as 41° N.; we remove the
reference to the California and Oregon
border, however, 41° N. remains the
northern boundary for the range of the
East Pacific DPS.
• We corrected typographical errors
in the listing tables and throughout the
preamble, including correcting the
citation to the existing critical habitat
designation for the North Atlantic DPS,
at 50 CFR 226.208.
• We include information on the
National Colombia Programme for
Conservation of Marine and Continental
Turtles in our consideration of
conservation efforts for the South
Atlantic and East Pacific DPSs.
• We indicate that the BIOT, located
within the range of the Southwest
Indian DPS, protects green turtles and
their habitat; however, conservation
efforts are not sufficient to adequately
reduce all threats (Mortimer and Day,
1999).
• We reviewed, and incorporate as
appropriate, scientific data from
references that were not included in the
Status Review Report and proposed
rule. We include the following
references, which together with
previously cited references, represent
the best available scientific and
commercial data; however, these new
references do not present significant
new findings that change any of our
proposed listing determinations: Benaka
et al., 2013; Adimey et al., 2014; Bourjea
et al., 2014; Brei et al., 2014; Carreras et
al., 2014; Casale and Mariani, 2014;
Dutton et al., 2014a; Dutton et al.,
´
2014b; Gonzalez Carman et al., 2014;
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Hays et al., 2014; Keller et al., 2014;
Lagueux et al., 2014; Naro-Maciel et al.,
2014a; Naro-Maciel et al., 2014b; Ng et
al., 2014; Read et al., 2014; Schuyler et
al., 2014; Senko et al., 2014; Shamblin
et al., 2014; Van Houtan et al., 2014;
Balazs et al., 2015; Baudouin et al.,
2015; Brost et al., 2015; Cavallo et al.,
2015; Esteban et al., 2015; Guilder et al.,
2015; Hart et al., 2015; Jourdan and
Fuentes, 2015; Katsanevakis et al., 2015;
Mancini et al., 2015; Rhodes, 2015;
´
Ruiz-Izaguirre et al., 2015; Santidrian
Tomillo et al., 2015; Santos et al.,
2015b; Stokes et al., 2015; Stringell et
al., 2015; Ullmann and Stachowitsch,
2015; Van Houtan et al., 2015;
Wedemeyer-Strombel et al., 2015;
Wilcox et al., 2015; Work et al., 2015;
Yang et al., 2015; Martin et al., 2016;
Halley et al., in review; Summers et al.,
in progress; NMFS, in progress.
Identification of DPSs
The comments that we received on
the proposed rule did not change our
conclusions regarding the identification
of DPSs. We reviewed relevant and
recently available scientific data that
were not included in the Status Review
Report and proposed rule (Carreras et
al., 2014; Casale and Mariani, 2014;
Dutton et al., 2014a; Dutton et al.,
2014b; Hays et al., 2014; Naro-Maciel et
al., 2014a; Naro-Maciel et al., 2014b; Ng
et al., 2014; Read et al., 2014; Shamblin
et al., 2014; Baudouin et al., 2015;
Esteban et al., 2015; Hart et al., 2015;
Mancini et al., 2015; Stokes et al., 2015;
Yang et al., 2015). The identification of
fine-scale genetic structure or mixing at
foraging areas for some DPSs does not
change our findings for the proposed
DPSs. Based on the best available
scientific and commercial data, we
conclude that the DPSs identified in the
proposed rule are discrete and
significant. Therefore, we incorporate
herein all information on the
identification of DPSs in the Status
Review Report and proposed rule, with
the following exception as discussed
above: We changed the boundary
between the North and South Atlantic
DPSs so that all islands of the U.S.
Virgin Islands (not just St. Croix) would
be included in the South Atlantic DPS.
In summary, we applied our joint DPS
policy (61 FR 4722, February 7, 1996) to
identify 11 discrete and significant
DPSs: North Atlantic, Mediterranean,
South Atlantic, Southwest Indian, North
Indian, East Indian-West Pacific, Central
West Pacific, Southwest Pacific, Central
South Pacific, Central North Pacific, and
East Pacific (Figure 1).
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06APR2
North Atlantic DPS
The comments that we received on
the North Atlantic DPS and additional
information that became available since
the publication of the proposed rule did
not change our conclusions regarding its
listing determination. Therefore, we
incorporate herein all information on
the North Atlantic DPS provided in the
Status Review Report and proposed
rule, with the following exceptions: The
boundary of the DPS (which was
changed to exclude all islands of the
U.S. Virgin Islands), and the application
of the critical risk threshold from the
Status Review Report (which, as we
explained in the proposed rule, does not
directly correlate with the ESA
definitions of ‘‘endangered’’ and
‘‘threatened’’). The following represents
a brief summary of that information.
The range of the DPS extends from the
boundary of South and Central America,
north along the coast to include
Panama, Costa Rica, Nicaragua,
Honduras, Belize, Mexico, and the
United States. It extends due east across
the Atlantic Ocean at 48° N. and follows
the coast south to include the northern
portion of the Islamic Republic of
Mauritania (Mauritania) on the African
continent to 19° N. It extends west at
19° N. to the Caribbean basin to 65.1°
W., then due south to 14° N., 65.1° W.,
then due west to 14° N., 77° W., and due
south to 7.5° N., 77° W., the boundary
of South and Central America. It
includes Puerto Rico, the Bahamas,
Cuba, Turks and Caicos Islands,
Republic of Haiti, Dominican Republic,
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Cayman Islands, and Jamaica. The North
Atlantic DPS includes the Florida
breeding population, which was
originally listed as endangered under
the ESA (43 FR 32800, July 28, 1978).
Demographic Parameters for the North
Atlantic DPS
The DPS exhibits high nesting
abundance, with an estimated total
nester abundance of 167,424 females at
73 nesting sites. More than 100,000
females nest at Tortuguero, Costa Rica,
and more than 10,000 females nest at
Quintana Roo, Mexico. Nesting data
indicate long-term increases at all major
nesting sites. There is little genetic
substructure within the DPS, and turtles
from multiple nesting beaches share
common foraging areas. Nesting is
geographically widespread and occurs
at a diversity of mainland and insular
sites.
Section 4(a)(1) Factors for the North
Atlantic DPS
Nesting beaches are degraded by
coastal development, coastal armoring,
beachfront lighting, erosion, sand
extraction, and vehicle and pedestrian
traffic. Foraging habitat is degraded by
pollution (including oil spills,
agricultural and residential runoff, and
sewage), propeller scarring, anchor
damage, dredging, sand mining, marina
construction, and beach nourishment.
The harvest of green turtles and eggs
remains legal in several countries (e.g.,
Lagueux et al., 2014), and illegal harvest
occurs in many areas. FP is a chronic,
often lethal disease that affects turtles
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20077
throughout the range of the DPS, and (as
discussed in a summit held since the
publication of the proposed rule)
especially in areas with some degree of
environmental degradation resulting
from altered watersheds (NMFS, in
progress). It may be increasing in
prevalence in some areas (e.g., Stringell
et al., 2015). As recently described by
Brost et al. (2015), predation is one of
the main sources of egg and hatchling
mortality in some areas. Jaguars also
prey on nesting females, as recently
described by Guilder et al. (2015).
Though numerous regulatory
mechanisms apply to the DPS, many are
inadequate due to limited
implementation and enforcement. There
has been one regulatory change since
the publication of the proposed rule,
which reduces the inadequacy of
regulatory mechanisms: The State of
Louisiana repealed the prohibition on
enforcement of turtle excluder device
regulations (LA HB668, July 1, 2015).
Fisheries bycatch in artisanal and
industrial fishing gear (e.g., gill net,
trawls, and dredges) results in
substantial mortality (e.g., Benaka et al.,
2013). Periodic dredging of sediments
from navigational channels can also
result in incidental mortality of sea
turtles (https://el.erdc.usace.army.mil/
seaturtles/
takes.cfm?Type=Total&Code=Table).
Vessel strikes are a significant and
increasing source of mortality in the
U.S. Atlantic and Gulf of Mexico and
likely in other locations. In some areas,
there has been an increase in strandings
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due to entanglement in marine debris
and the ingestion of plastics, as recently
described by Adimey et al. (2014),
which causes blockage in the gut and
dilutes the nutritional contribution of
the diet. Cold stunning, the
hypothermic reaction that occurs when
sea turtles are exposed to prolonged
cold water temperatures, occurs
regularly throughout the range of the
DPS and may result in a UME. Oil spills
may also result in a UME. The
Deepwater Horizon oil spill was
particularly harmful to post-hatchlings
and surface-pelagic juveniles by
temporarily destroying their Sargassum
habitat (Powers et al., 2013) and
resulting in the ingestion of
contaminants (Witherington et al.,
2012). Climate change is likely to have
a negative effect on the DPS. Sea level
rise is likely to alter green turtle nesting
habitat and reduce nesting success.
Increased sand temperature is likely to
result in skewed sex ratios and lethal
incubation conditions, as recently
described by Santos et al. (2015a).
asabaliauskas on DSK3SPTVN1PROD with RULES
Conservation Efforts for the North
Atlantic DPS
Conservation efforts include bycatch
reduction measures, nesting beach
acquisitions, and nest protection
programs to reduce harvest and
predation. Numerous initiatives, such as
the Colombia National Programme for
the Conservation of Marine and
Continental Turtles, promote education,
conservation, and outreach. The
recovery of the DPS is dependent on
ESA protections and those provided by
local, State, and foreign laws, some of
which may have been triggered by the
original ESA listing. Though ESA
protections would be lost if the DPS
were not listed under the ESA, it is
unclear whether local, State, and foreign
laws would remain in place.
Extinction Risk Analysis for the North
Atlantic DPS
The high nesting abundance,
increasing trends, connectivity, and
spatial diversity provide the DPS with
some resilience against current threats
(i.e., the threats have not prevented
positive population growth in recent
years). The DPS is threatened by several
factors: The current and projected
destruction and modification of its
habitat; legal and illegal harvest of
turtles and eggs; disease and predation;
inadequacy of regulatory mechanisms to
regulate the underlying threats; and
other factors (i.e., fisheries bycatch,
channel dredging, marine debris, cold
stunning, and climate change). Though
beneficial, the conservation efforts do
not adequately reduce the threats. Based
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on the above information, we conclude
that the DPS is not presently in danger
of extinction throughout all or a
significant portion of its range. Listing is
warranted because numerous threats
remain, several of which are likely to
increase within the foreseeable future;
all threats are likely to increase if ESA
protections are lost, resulting in
curtailed or reversed population trends.
We conclude that the North Atlantic
DPS is likely to become endangered
within the foreseeable future throughout
all or a significant portion of its range.
Numerous species prey on eggs and
hatchlings. Many international and
national regulatory mechanisms exist;
however, fisheries bycatch and tourism
impacts are poorly regulated. Fisheries
bycatch results in substantial mortality
and is a major threat to the DPS. Vessel
activity and strikes result in mortality,
injury, and abandoned nesting attempts.
Marine debris is a major concern.
Climate change is likely to alter thermal
sand characteristics; in some areas,
hatchling sex ratios are already highly
female biased (up to 95 percent).
Listing Determination for the North
Atlantic DPS
For the above reasons, we list the
North Atlantic DPS as a threatened
species under the ESA.
Conservation Efforts for the
Mediterranean DPS
Conservation efforts include
protection of nesting beaches, removal
of marine debris, and establishment of
marine protected areas. In a recent
study, Ullmann and Stachowitsch
(2015) identified 49 stranding response
(i.e., rescue) centers, stations, and
institutions throughout the
Mediterranean; however,
communication among such facilities is
limited, and there are gaps in coverage.
Mediterranean DPS
The comments that we received on
the Mediterranean DPS and additional
information that became available since
the publication of the proposed rule did
not change our conclusions regarding its
listing determination. Therefore, we
incorporate herein all information on
the Mediterranean DPS provided in the
Status Review Report and proposed
rule, with the exception of the
application of the critical risk threshold
from the Status Review Report, which
does not directly correlate with the ESA
definitions of ‘‘endangered’’ and
‘‘threatened,’’ as explained in the
proposed rule. The following represents
a brief summary of that information.
The range of the DPS includes the
Mediterranean Sea (excluding the Black
Sea), with the Strait of Gibraltar as its
western boundary.
Demographic Parameters for the
Mediterranean DPS
The DPS exhibits low abundance,
with an estimated total nester
abundance of 404 to 992 females at 32
sites. The DPS is severely depleted
relative to historical levels; however,
five of seven nesting sites indicate
slightly increasing trends. Connectivity
is high (i.e., little to no genetic
substructure), but nesting site diversity
is low.
Section 4(a)(1) Factors for the
Mediterranean DPS
Nesting habitat is destroyed or
modified by coastal development,
construction, beachfront lighting, sand
extraction, beach erosion, vehicular and
pedestrian traffic, and beach pollution.
Fishing and pollution result in the
destruction and modification of foraging
habitat. The harvest of turtles and eggs
contributed to the historical decline of
this DPS and continues in several areas.
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Sfmt 4700
Extinction Risk Analysis for the
Mediterranean DPS
As a result of low nesting abundance
(concentrated primarily in one area),
weak population growth rates, and low
diversity of nesting sites, the DPS has
little resilience to threats, which
include: Habitat loss and degradation,
overexploitation, predation, inadequate
regulatory mechanisms, fisheries
bycatch, vessel traffic, marine debris,
and climate change. Although they are
beneficial, the conservation efforts do
not adequately reduce threats. We
conclude that the Mediterranean DPS is
in danger of extinction throughout all or
a significant portion of its range.
Listing Determination for the
Mediterranean DPS
For the above reasons, we list the
Mediterranean DPS as an endangered
species under the ESA.
South Atlantic DPS
The comments that we received on
the South Atlantic DPS and additional
information that became available since
the publication of the proposed rule did
not change our conclusions regarding its
listing determination. Therefore, we
incorporate herein all information on
the South Atlantic DPS provided in the
Status Review Report and proposed
rule, with the following exceptions: the
boundary of the DPS (which was
changed to include all islands of the
U.S. Virgin Islands), and the application
of the critical risk threshold from the
Status Review Report (which, as we
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explained in the proposed rule, does not
directly correlate with the ESA
definitions of ‘‘endangered’’ and
‘‘threatened’’). The following represents
a brief summary of that information.
The range of the South Atlantic DPS
begins at the border of Panama and
Colombia at 7.5° N., 77° W., heads due
north to 14° N., 77° W., then east to 14°
N., 65.1° W., then north to 19° N., 65.1°
W., and along 19° N. latitude to
Mauritania in Africa, to include the U.S.
Virgin Islands in the Caribbean. It
extends along the coast of Africa to
South Africa, with the southern border
being 40° S. latitude.
asabaliauskas on DSK3SPTVN1PROD with RULES
Demographic Parameters for the South
Atlantic DPS
The DPS exhibits high nesting
abundance, with an estimated total
nester abundance of 63,332 females.
Two nesting sites have greater than
˜
10,000 nesting females: Poilao, GuineaBissau and Ascension Island, UK
(Weber et al., 2014). Nesting trends are
increasing at the 14 sites where
abundance data are available. Within
the DPS, there is little genetic
substructure, and turtles share
important foraging areas. Nesting is
geographically widespread and diverse,
occurring along the western coast of
Africa, on Caribbean and South Atlantic
islands, and along eastern South
America.
Section 4(a)(1) Factors for the South
Atlantic DPS
Nesting habitat is destroyed or
modified by coastal development and
construction, placement of erosion
control structures and other barriers to
nesting, beachfront lighting (e.g., Brei et
al., 2014), vehicular and pedestrian
traffic, sand extraction, beach erosion,
beach sand placement, beach pollution,
removal of native vegetation, and
planting of non-native vegetation.
Foraging habitats are degraded by
pollution, including agriculture and
industrial runoff, and anchor damage to
seagrass beds. The harvest of turtles and
eggs contributed to the historical
declines of the DPS and continues in
some areas, legally and illegally. FP is
highly variable in its presence and
severity throughout the range of the
DPS. Predators eat eggs, hatchlings, and
nesting females. Throughout the range
of the DPS, laws protecting sea turtles
and their nesting habitats are
implemented to varying degrees, but
regulatory mechanisms to address
fisheries bycatch are limited. Turtles are
incidentally captured throughout the
South Atlantic DPS in pelagic and
demersal longlines, drift and set gill
nets, bottom and mid-water trawls,
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fishing dredges, pound nets and weirs,
haul and purse seines (e.g., Bourjea et
al., 2014), pots and traps, and hook and
line gear. There is a high prevalence of
marine debris and plastic ingestion (e.g.,
´
Gonzalez Carman et al., 2014). Sea level
rise and increased storm frequency and
intensity are likely to eliminate the
functionality of nesting beaches on lowlying islands. Some beaches will likely
experience lethal incubation
temperatures that will result in the
complete loss of hatchling cohorts.
Conservation Efforts for the South
Atlantic DPS
Most nations in South America, the
Caribbean, and Africa have national
legislation or programs sponsored by
state governments, local communities,
academic institutions, and organizations
to protect sea turtles and their nesting
and foraging habitats. Conservation
efforts at the primary nesting beaches,
such as Ascension Island, include legal
prohibitions as well as extensive
monitoring, outreach, and research
(https://www.seaturtle.org/mtrg/projects/
tukot/ascension.shtml).
Extinction Risk Analysis for the South
Atlantic DPS
As a result of the high population
abundance, increasing nesting trend,
and diverse nesting sites, the DPS is
somewhat resilient to current threats,
which include: Habitat loss and
degradation, overexploitation, disease
and predation, inadequate regulatory
mechanisms, fisheries bycatch, marine
debris, oil exploration and extraction,
and climate change. The conservation
efforts vary in consistency and efficacy
throughout the range of the DPS and do
not adequately mitigate all threats. We
conclude that the DPS is not presently
in danger of extinction throughout all or
a significant portion of its range. Listing
is warranted because numerous threats
remain, some of which are likely to
increase within the foreseeable future;
the loss of ESA protections would
further exacerbate all threats. We
conclude that the DPS is likely to
become an endangered species within
the foreseeable future throughout all or
a significant portion of its range.
Listing Determination for the South
Atlantic DPS
For the above reasons, we list the
South Atlantic DPS as a threatened
species under the ESA.
Southwest Indian DPS
The comments that we received on
the Southwest Indian DPS did not
change our conclusions regarding its
listing determination. Therefore, we
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20079
incorporate herein all information on
the Southwest Indian DPS provided in
the Status Review Report and proposed
rule, with the exception of the
application of the critical risk threshold
from the Status Review Report, which
does not directly correlate with the ESA
definitions of ‘‘endangered’’ and
‘‘threatened,’’ as explained in the
proposed rule. The following represents
a brief summary of that information.
The range of the Southwest Indian
DPS has as its western boundary the
shores of continental Africa from the
equator, just north of the Kenya-Somalia
border, south to the Cape of Good Hope
(South Africa), and extends south from
there along 19° E. longitude to 40° S.,
19° E. Its southern boundary extends
along 40° S. latitude from 19° E. to 84°
E., and its eastern boundary runs along
84° E. longitude from 40° S. latitude to
the equator. Its northern boundary
extends along the equator from 84° E. to
the continent of Africa just north of the
Kenya-Somalia border.
Demographic Parameters for the
Southwest Indian DPS
The DPS exhibits high abundance,
with an estimated total nester
abundance of 91,059 females at 15
nesting sites (four of which host more
than 10,000 females). Nesting data at
these mostly protected beaches indicate
increasing trends. Within the DPS, there
is a moderate degree of genetic
substructure (i.e., at least two stocks),
with connectivity between proximate
sites. The high diversity of nesting
habitat includes insular and continental
beaches.
Section 4(a)(1) Factors for the Southwest
Indian DPS
Nesting beaches are threatened by
increased tourism and artificial lighting.
Foraging habitats are degraded by
development of the coastline, dredging,
land-fill, sedimentation, and sand
extraction. Legal and illegal harvest of
turtles and eggs persists throughout the
DPS. Poaching of nesting females has
led to declines at some beaches, and
foraging turtles are heavily poached in
several areas. Existing regulatory
mechanisms to address poaching and
bycatch are often inadequately
implemented and/or enforced, as
demonstrated by the high level of illegal
harvest and bycatch within this DPS.
The DPS is threatened by bycatch in
demersal and pelagic longlines, trawls,
gill nets, and purse seines (e.g., Bourjea
et al., 2014). Sea level rise and
increasing storm events (as a result of
climate change) are likely to reduce
nesting habitat throughout the range of
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the DPS because much of the nesting
occurs at low-lying islands and atolls.
Conservation Efforts for the Southwest
Indian DPS
Several regional initiatives have
promoted conservation, management,
research and education throughout the
range of the DPS. Other multinational
programs and national laws protect sea
turtles. For example, Mortimer and Day
(1999) state that green turtles and
nesting habitat in the Chagos
Archipelago are well protected by the
BIOT administration (Mortimer and
Day, 1999) and a large marine protected
area (Hays et al., 2014); however,
monitoring and conservation efforts are
not sufficient to adequately reduce all
threats.
Extinction Risk Analysis for the
Southwest Indian DPS
The high nesting abundance,
increasing nesting trends, and spatial
and genetic diversity of the DPS provide
some resilience to threats, which
include: Habitat loss and degradation,
overexploitation of eggs and turtles,
inadequate regulatory mechanisms,
fisheries bycatch, and climate change.
Despite many beneficial conservation
efforts, poaching and bycatch remain
major threats. We conclude that the DPS
is not presently in danger of extinction
throughout all or a significant portion of
its range. Listing is warranted because of
the high levels of harvest and bycatch,
in the context of increasing impacts
from climate change, are likely to
overwhelm the resilience of the DPS.
We conclude that the DPS is likely to
become endangered within the
foreseeable future throughout all or a
significant portion of its range.
Listing Determination for the Southwest
Indian DPS
For the above reasons, we list the
Southwest Indian DPS as a threatened
species under the ESA.
asabaliauskas on DSK3SPTVN1PROD with RULES
North Indian DPS
We did not receive comments on the
North Indian DPS, and there are no
changes to our proposed listing
determination. Therefore, we
incorporate herein all information on
the North Indian DPS provided in the
Status Review Report and proposed
rule, with the exception of the
application of the critical risk threshold
from the Status Review Report, which
does not directly correlate with the ESA
definitions of ‘‘endangered’’ and
‘‘threatened,’’ as explained in the
proposed rule. The following represents
a brief summary of that information.
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The range of the North Indian DPS
begins at the border of Somalia and
Kenya north into the Gulf of Aden, Red
Sea, Persian Gulf and east to the Gulf of
Mannar off the southern tip of India and
includes a major portion of India’s
southeastern coast up to Andra Pradesh.
The southern and eastern boundaries
are the equator (0°) and 84° E.,
respectively, which intersect in the
southeast corner of the range of the DPS.
It is bordered by the following countries
(following the water bodies from west to
east): Somalia, Djibouti, Eritrea, Sudan,
Egypt, Israel, Jordan, Saudi Arabia,
Yemen, Oman, United Arab Emirates,
Qatar, Bahrain, Kuwait, Iraq, the Islamic
Republic of Iran, Pakistan, India, and Sri
Lanka.
Demographic Parameters for the North
Indian DPS
The DPS exhibits high abundance,
with an estimated total nester
abundance of 55,243 females at 38
nesting sites. Two sites host greater than
10,000 nesting females: Ras Sharma,
Yemen, and Ras Al Hadd, Oman.
Nesting trends are increasing at Ras Al
Hadd but possibly declining at other
sites. Nesting is moderately dispersed,
though concentrated in the northern and
western region of the range.
Section 4(a)(1) Factors for the North
Indian DPS
Nesting beaches are degraded by light
pollution and uncontrolled particulate
emissions that prevent the emergence of
hatchlings from their nests at some
beaches. Marine habitat is degraded as
a result of trawling, dredging, siltation,
land reclamation, and pollution. The
legal and illegal harvest of turtles and
eggs persists at several nesting beaches.
Predation of eggs and hatchlings is a
major threat at some nesting beaches.
Though numerous international and
national regulatory mechanisms apply
to the DPS, many are inadequate due to
limited implementation and
enforcement. Sea turtle bycatch in gill
nets, trawls, and longline fisheries is a
significant cause of mortality. Vessel
strikes are a large and increasing threat.
Beach driving causes hatchling turtles to
be caught in ruts, struck, or run over.
Marine debris entangles and is ingested
by turtles. Sea level rise and the
increased frequency and intensity of
storm events, as a result of climate
change, are likely to cause severe
erosion to nesting beaches.
Conservation Efforts for the North
Indian DPS
There are several multinational and
national programs underway to protect
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and conserve the DPS. Most focus on
protecting the nesting beaches.
Extinction Risk Analysis for the North
Indian DPS
The high abundance and broadly
distributed nesting beaches of the DPS
provide some resilience to threats;
however, nesting is relatively
concentrated and declining at some
beaches. The DPS is threatened by the
following factors: habitat loss and
degradation, harvest of turtles and eggs,
predation, inadequate regulatory
mechanisms, fisheries bycatch, marine
debris, beach driving, boat strikes, and
climate change. While conservation
efforts for the North Indian DPS are
extensive and expanding, they remain
inadequate to ensure the long-term
viability of the population. We conclude
that the DPS is not presently in danger
of extinction throughout all or a
significant portion of its range. Listing is
warranted because resilience is limited
and several of the existing threats are
likely to increase. Therefore, the DPS is
likely to become endangered within the
foreseeable future throughout all or a
significant portion of its range.
Listing Determination for the North
Indian DPS
For the above reasons, we list the
North Indian DPS as a threatened
species under the ESA.
East Indian-West Pacific DPS
The comments that we received on
the East Indian-West Pacific DPS did
not change our conclusions regarding its
listing determination. Therefore, we
incorporate herein all information on
the East Indian-West Pacific DPS
provided in the Status Review Report
and proposed rule, with the exception
of the application of the critical risk
threshold from the Status Review
Report, which does not directly
correlate with the ESA definitions of
‘‘endangered’’ and ‘‘threatened,’’ as
explained in the proposed rule. The
following represents a brief summary of
that information.
The western boundary for the range of
the East Indian-West Pacific DPS is 84°
E. longitude from 40° S. to where it
coincides with India near Odisha,
northeast along the shoreline and into
the West Pacific Ocean to include
Taiwan extending east at 41° N. to 146°
E. longitude, south and west to 4.5° N.,
129° E., then south and east to West
Papua in Indonesia and the Torres
Straits in Australia. The southern
boundary is 40° S. latitude,
encompassing the Gulf of Carpentaria.
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Demographic Parameters for the East
Indian-West Pacific DPS
Extinction Risk Analysis for the East
Indian-West Pacific DPS
Demographic Parameters for the Central
West Pacific DPS
The DPS exhibits high abundance,
with an estimated total nester
abundance of 77,009 females at 50
nesting sites. The largest nesting site
(Wellesley Group in northern Australia)
supports approximately 25,000 nesting
females. Declines occur at several
nesting sites, though others appear to be
stable or increasing. There is complex
and significant spatial substructure, but
some mixing of turtles occurs at foraging
areas. Nesting and foraging areas are
widespread throughout the range of the
DPS, providing some resilience through
habitat diversity.
The high nesting abundance and
spatial diversity of nesting and foraging
locations provide the DPS with some
resilience against current threats;
however, nesting trends at several sites
are declining. The DPS is threatened by
all section 4(a)(1) factors: Habitat loss
and degradation, overexploitation,
disease and predation, inadequate
regulatory mechanisms, fisheries
bycatch, marine debris, and climate
change. Though beneficial, the
conservation efforts do not adequately
reduce threats. We conclude that the
East Indian-West Pacific DPS is not
presently in danger of extinction
throughout all or a significant portion of
its range. Listing is warranted because
current and increasing threats are likely
to exacerbate population declines,
especially in the context of climate
change. For these reasons, the DPS is
likely to become endangered within the
foreseeable future throughout all or a
significant portion of its range.
The DPS exhibits low nesting
abundance, with an estimated total
nester abundance of 6,518 females at 50
nesting sites. Nesting data indicate
increasing trends at one site but
decreasing trends at others. There is
significant genetic substructure and
limited connectivity among four
independent stocks. Nesting is relatively
widespread but occurs only on islands
and atolls (i.e., little nesting site
diversity).
Section 4(a)(1) Factors for the East
Indian-West Pacific DPS
The majority of nesting beaches are
degraded due to tourism, coastal
development, artificial lighting, sand
mining, oil and gas production, and
marine debris. Foraging habitat is
degraded due to siltation, sewage,
pollution (e.g., oil spills, agricultural
runoff, and organic chemicals),
commercial harvest of seagrass,
trawling, dynamite and potassium
cyanide fishing, and vessel anchoring.
The harvest of turtles and eggs has led
to declines throughout the range of the
DPS. At-sea poaching is a common
problem. There is rising incidence of
FP. Nest and hatchling predation is
prevalent. Though numerous regulatory
mechanisms apply to the DPS, many are
inadequately implemented and
enforced. Incidental capture in artisanal
and commercial fisheries (e.g., those
using drift and set gill nets, bottom and
mid-water trawling, fishing dredges,
pound nets and weirs, and haul and
purse seines) is a significant and
increasing threat. Turtles ingest and
become entangled in marine debris,
including discarded fishing gear (e.g.,
Wilcox et al., 2015). Climate change
poses an increasing threat to the DPS
through the loss of nesting habitat (due
to sea level rise and increasing storm
events) and the alteration of thermal
sand characteristics of beaches (from
warming temperatures).
asabaliauskas on DSK3SPTVN1PROD with RULES
Conservation Efforts for the East IndianWest Pacific DPS
There are several conservation
programs throughout the range of the
DPS. Sanctuaries and parks protect
some nesting beaches, and some marine
protected areas have been established.
There are bycatch reduction efforts in
some areas. Several programs conduct
monitoring, education, outreach, and
enforcement.
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Listing Determination for the East
Indian-West Pacific DPS
For the above reasons, we list the East
Indian-West Pacific DPS as a threatened
species under the ESA.
Central West Pacific DPS
The comments that we received on
the Central West Pacific DPS did not
change our conclusions regarding its
listing determination. Therefore, we
incorporate herein all information on
the Central West Pacific DPS provided
in the Status Review Report and
proposed rule, with the exception of the
application of the critical risk threshold
from the Status Review Report, which
does not directly correlate with the ESA
definitions of ‘‘endangered’’ and
‘‘threatened,’’ as explained in the
proposed rule. The following represents
a brief summary of that information.
The range of the Central West Pacific
DPS has a northern boundary of 41° N.
latitude and is bounded by 41° N., 169°
E. in the northeast corner, going
southeast to 9° N., 175° W., then
southwest to 13° S., 171° E., west and
slightly north to the eastern tip of Papua
New Guinea, along the northern shore of
the Island of New Guinea to West Papua
in Indonesia, northwest to 4.5° N., 129°
E. then to West Papua in Indonesia, then
north to 41° N., 146° E. It encompasses
the Republic of Palau, Federated States
of Micronesia, New Guinea, Solomon
Islands, Marshall Islands, Guam, CNMI,
and the Ogasawara Islands of Japan.
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Section 4(a)(1) Factors for the Central
West Pacific DPS
Nesting habitat is degraded by coastal
development and construction,
placement of barriers to nesting,
beachfront lighting, tourism, vehicular
and pedestrian traffic, sand extraction,
beach erosion, beach pollution, removal
of native vegetation, and the presence of
non-native vegetation. Destruction and
modification of marine habitat occurs as
a result of coastal construction, tourism,
sedimentation, pollution, sewage,
runoff, military activities, dredging,
destructive fishing methods, and boat
anchoring. The harvest of turtles and
eggs is a large and persistent threat
throughout the range of the DPS.
Predation is a significant threat in some
areas. Though there are some existing
regulatory mechanisms to reduce the
harvest of turtles and eggs and to
prevent or reduce bycatch,
implementation and enforcement are
inadequate. Turtles are incidentally
caught in longline, pole and line, and
purse seine fisheries. Marine debris
results in the mortality of sea turtles
through ingestion and entanglement.
Temperature increases, as a result of
climate change, are the greatest longterm threat to atoll morphology in
nations throughout the range of the DPS.
Sea level rise is likely to reduce
available nesting habitat. The increased
frequency and intensity of storm events
are likely to cause beach erosion and
nest inundation, as demonstrated in a
recent study by Summers et al. (in
progress). However, Ford and Kench
(2015, 2016) recently described
shoreline accretion in the Marshall
Islands, despite typhoon-driven erosion
and local sea level rise.
Conservation Efforts Evaluation for the
Central West Pacific DPS
Conservation efforts include programs
to protect turtles, establish protected
areas, and reduce beach pollution. A
recent study demonstrates that turtle
densities have increased by an order of
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magnitude in a marine protected area in
Guam (Martin et al., 2016).
Extinction Risk Analysis for the Central
West Pacific DPS
The low nesting abundance, limited
connectivity, and low nesting diversity
provide the DPS with little resilience
against current threats. Though nesting
trends are increasing in some areas, they
are decreasing in others. The DPS is
vulnerable to the following section
4(a)(1) factors: Habitat modification and
destruction, overexploitation, predation,
fisheries bycatch, marine debris, and
climate change. Conservation efforts do
not adequately reduce such threats; ESA
and additional protections are essential
to the continued existence of the DPS.
We conclude that the DPS is in danger
of extinction throughout all or a
significant portion of its range.
Listing Determination for the Central
West Pacific DPS
For the above reasons, we list the
Central West Pacific DPS as an
endangered species under the ESA.
asabaliauskas on DSK3SPTVN1PROD with RULES
Southwest Pacific DPS
We did not receive comments on the
Southwest Pacific DPS and made no
changes to our proposed listing
determination. Therefore, we
incorporate herein all information on
the Southwest Pacific DPS provided in
the Status Review Report and proposed
rule, with the exception of the
application of the critical risk threshold
from the Status Review Report, which
does not directly correlate with the ESA
definitions of ‘‘endangered’’ and
‘‘threatened,’’ as explained in the
proposed rule. The following represents
a brief summary of that information.
The range of the Southwest Pacific
DPS extends from the western boundary
of Torres Strait, to the eastern tip of
Papua New Guinea and out to the
offshore coordinate of 13° S., 171° E.;
the eastern boundary runs from this
point southeast to 40° S., 176° E.; the
southern boundary runs along 40° S.
from 142° E. to 176° E.; and the western
boundary runs from 40° S., 142° E. north
to the Australian coast then follows the
coast northward to the Torres Strait.
Demographic Parameters for the
Southwest Pacific DPS
The DPS exhibits high nesting
abundance, with an estimated total
nester abundance of 83,058 females at
12 aggregated nesting sites. Three sites
(all in Australia) host more than 10,000
nesting females: Raine Island, Moulter
Cay, and the Capricorn and Bunker
Group. Nesting data indicate slightly
increasing trends. There are four
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regional genetic stocks, though mixing
occurs at foraging areas. Nesting and
foraging areas are widely dispersed.
Section 4(a)(1) Factors for the Southwest
Pacific DPS
Nesting habitat has been degraded by
beach erosion, artificial lighting,
pollution, removal of native vegetation,
and planting of non-native vegetation.
Threats to foraging habitat include
destructive fishing practices, channel
dredging, and marine pollution. Harvest
of turtles and eggs is substantial and
occurs in many areas. Several species
prey on eggs and hatchlings. Existing
regulatory mechanisms inadequately
address the incidental take of turtles,
and many are not enforced at the local
level. Incidental capture in artisanal and
commercial fisheries (e.g., trawl,
longline, drift net, and set net fisheries)
is a significant threat. Vessel strikes
injure or kill turtles in coastal waters.
Port dredging and marine debris pose
minor threats to the DPS. Climate
change impacts are likely to result in
increased hatchling mortality, skewed
sex ratios, range shifts, diet shifts, and
loss of nesting habitat.
Conservation Efforts for the Southwest
Pacific DPS
Conservation efforts for the DPS have
resulted in take prohibitions,
implementation of bycatch reduction
devices, improvement of shark control
devices, and safer dredging practices.
Most nesting occurs on protected
beaches, and the habitat off the largest
nesting site falls within a marine
protected area.
Extinction Risk Analysis for the
Southwest Pacific DPS
The high nesting abundance, slightly
increasing trends, and spatial diversity
provide the DPS with some resilience
against current threats, which include:
Habitat loss and degradation,
overexploitation, disease and predation,
inadequate regulatory mechanisms,
fisheries bycatch, boat strikes, marine
debris, port dredging, and climate
change. Though beneficial, the
conservation efforts are not sufficient to
reduce all threats. We conclude that the
DPS is not presently in danger of
extinction throughout all or a significant
portion of its range. Listing is warranted
because of several continuing and
increasing threats, as summarized
above. As a result of such threats, we
conclude that the DPS is likely to
become endangered within the
foreseeable future throughout all or a
significant portion of its range.
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Listing Determination for the Southwest
Pacific DPS
For the above reasons, we list the
Southwest Pacific DPS as a threatened
species under the ESA.
Central South Pacific DPS
The comments that we received on
the Central South Pacific DPS did not
change our conclusions regarding its
listing determination. Therefore, we
incorporate herein all information on
the Central South Pacific DPS provided
in the Status Review Report and
proposed rule, with the exception of the
application of the critical risk threshold
from the Status Review Report, which
does not directly correlate with the ESA
definitions of ‘‘endangered’’ and
‘‘threatened,’’ as explained in the
proposed rule. The following represents
a brief summary of that information.
The range of the DPS extends north
and east of New Zealand to include a
longitudinal expanse of 7,500 km, from
Easter Island, Chile in the east to Fiji in
the west, and encompasses American
Samoa, French Polynesia, Cook Islands,
Fiji, Kiribati, Tokelau, Tonga, and
Tuvalu. Its open ocean polygonal
boundary endpoints are (clockwise from
the northwest-most extent): 9° N., 175°
W. to 9° N., 125° W. to 40° S., 96° W.
to 40° S., 176° E., to 13° S., 171° E., and
back to 9° N., 175° W.
Demographic Parameters for the Central
South Pacific DPS
The DPS exhibits low nesting
abundance, with an estimated total
nester abundance of 2,677 to 3,600
nesting females at 59 nesting sites.
There is a negative nesting trend at the
most abundant nesting site but
increasing trends at less abundant
nesting beaches. There are at least two
genetic stocks within the DPS. Nesting
is geographically broad, but there is
little diversity of nesting sites, with
most nesting occurring on low-lying
coral atolls or oceanic islands.
Section 4(a)(1) Factors for the Central
South Pacific DPS
Some nesting beaches are degraded by
coastal erosion, development,
construction, sand extraction, artificial
lighting, proximity to road traffic, and
natural disasters, such as tsunamis.
Marine habitat is degraded by runoff,
sedimentation, dredging, ship
groundings, natural disasters, and
pollution (e.g., oil spills, toxic and
industrial wastes, and heavy metals).
Commercial and traditional exploitation
of turtles and eggs has resulted in
declines at the most abundant nesting
site and other locations. Illegal harvest
of turtles and eggs is also a major threat.
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Predation by introduced species is a
significant threat in some areas.
Regulatory mechanisms are inadequate
to curb the continued loss and
degradation of habitat and the harvest of
turtles and eggs. Incidental capture in
artisanal and commercial fisheries (e.g.,
line, trap, and net fisheries) is a
significant threat to the DPS. The
primary gear types involved in these
interactions include longlines, traps,
and nets. Injury and mortality result
from the entanglement in and ingestion
of plastics, monofilament fishing line,
and other marine debris (e.g.,
Wedemeyer-Strombel et al., 2015).
Islands within the South Pacific are
especially vulnerable to sea level rise,
which together with increasing storm
events, is likely to reduce available
nesting habitat.
Conservation Efforts for the Central
South Pacific DPS
Conservation efforts throughout the
region, such as establishment of
protected areas and national legislation
to protect turtles, provide some benefits
to the DPS. The remoteness of some
areas appears to provide the most
conservation protection against certain
threats, such as poaching.
asabaliauskas on DSK3SPTVN1PROD with RULES
Extinction Risk Analysis for the Central
South Pacific DPS
The low nesting abundance,
decreasing nesting trends at the largest
nesting site, and low nesting diversity
provide the DPS with little resilience
against current threats. Though nesting
trends are increasing at some less
abundant nesting beaches, such trends
provide little additional resilience to the
DPS. Therefore, the DPS is vulnerable to
the following section 4(a)(1) factors:
Habitat loss and degradation,
overexploitation, predation, inadequate
regulatory mechanisms, fisheries
bycatch, marine debris, and climate
change. Conservation efforts do not
adequately reduce such threats; ESA
and additional protections are essential
to the continued existence of the DPS.
We conclude that the DPS is in danger
of extinction throughout all or a
significant portion of its range.
Listing Determination for the Central
South Pacific DPS
For the above reasons, we list the
Central South Pacific DPS as an
endangered species under the ESA.
Central North Pacific DPS
The comments that we received on
the Central North Pacific DPS did not
change our conclusions regarding its
listing determination. Therefore, we
incorporate herein all information on
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the Central North Pacific DPS provided
in the Status Review Report and
proposed rule, with the exception of the
application of the critical risk threshold
from the Status Review Report, which
does not directly correlate with the ESA
definitions of ‘‘endangered’’ and
‘‘threatened,’’ as explained in the
proposed rule. The following represents
a brief summary of that information.
The range of the Central North Pacific
DPS includes the Hawaiian Archipelago
and Johnston Atoll. It is bounded by a
four-sided polygon with open ocean
extents reaching to 41° N., 169° E. in the
northwest corner, 41° N., 143° W. in the
northeast, 9° N., 125° W. in southeast,
and 9° N., 175° W. in the southwest.
Demographic Parameters for the Central
North Pacific DPS
The DPS exhibits low nesting
abundance, with an estimated total
nester abundance of 3,846 nesting
females at 13 nesting sites. The most
recent published study on this DPS
estimates the total nester abundance at
roughly 4,000 nesting females (Balazs et
al., 2015). The nesting trend is
increasing. Nesting site diversity is
extremely limited: 96 percent of nesting
occurs at one low-lying atoll (i.e., FFS).
Section 4(a)(1) Factors for the Central
North Pacific DPS
In the MHI, nesting and basking
habitats are degraded by coastal
development and construction,
vehicular and pedestrian traffic, beach
pollution, tourism, and other human
related activities. Foraging habitat is
degraded by coastal development,
marina construction, siltation,
pollution, sewage, military activities,
vessel traffic, and vessel groundings. As
stated in a recent study, FP continues to
cause the majority of green turtle
strandings in Hawai1i (Work et al., 2015)
and may be linked to environmental
factors (Keller et al., 2014; Van Houtan
et al., 2014; Work et al., 2014; NMFS,
in progress). Numerous native and nonnative predators prey on hatchlings and
eggs. Existing regulatory mechanisms do
not adequately address the threat of
bycatch in international fisheries. In
addition to incidental capture in foreign
longline fisheries, interactions with
nearshore recreational fisheries occur
(Work et al., 2015). Marine debris is a
significant threat (e.g., WedemeyerStrombel et al., 2015); entanglement in
lost or discarded fishing gear is the
second leading cause of strandings and
mortality in the MHI (Work et al., 2015).
Vessel strikes result in injury and
mortality. Vessel traffic excludes turtles
from their preferred foraging areas. The
extremely limited nesting diversity (i.e.,
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20083
96 percent of nesting at FFS) increases
extinction risk by rendering the DPS
vulnerable to random variation and
environmental stochasticities. In
addition, climate change impacts
threaten the DPS. Sea level rise and the
increasing frequency and intensity of
storm events are likely to reduce
available nesting habitat. A recent study
indicated that increasing temperatures
are likely to modify beach thermal
regimes that are important to nesting
and basking (Van Houtan et al., 2015).
Temperature increases are also likely to
result in increased hatchling mortality,
skewed sex ratios, and changes in
juvenile and adult distribution patterns.
Conservation Efforts for the Central
North Pacific DPS
Overall, State and Federal
conservation efforts have been
successful in countering some threats.
Important State initiatives include the
regulation of gill net fishing and the
distribution of barbless circle hooks.
Extinction Risk Analysis for the Central
North Pacific DPS
Though the low nesting abundance
and extremely limited nesting diversity
render the DPS vulnerable to several
threats, the increasing nesting trend at
FFS provides some resilience. The DPS
is threatened by the following section
4(a)(1) factors: Present and threatened
habitat loss and degradation, disease
and predation, inadequate regulatory
mechanisms, fisheries bycatch, marine
debris, vessel activities, limited spatial
diversity, and climate change. Though
beneficial, the conservation efforts are
not sufficient to reduce all threats. We
conclude that the DPS is not presently
in danger of extinction throughout all or
a significant portion of its range. Listing
is warranted because of numerous
continuing and increasing threats,
which would be further exacerbated if
ESA protections were lost. We conclude
that the DPS is likely to become
endangered within the foreseeable
future throughout all or a significant
portion of its range.
Listing Determination for the Central
North Pacific DPS
For the above reasons, we list the
Central North Pacific DPS as a
threatened species under the ESA.
East Pacific DPS
The comments that we received on
the East Pacific DPS did not change our
conclusions regarding its listing
determination. Therefore, we
incorporate herein all information on
the East Pacific DPS provided in the
Status Review Report and proposed
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rule, with the exception of the
application of the critical risk threshold
from the Status Review Report, which
does not directly correlate with the ESA
definitions of ‘‘endangered’’ and
‘‘threatened,’’ as explained in the
proposed rule. The following represents
a brief summary of that information.
The range of the DPS extends from
41° N. southward along the Pacific coast
of the Americas to central Chile (40° S.)
and westward to 142° W. and 96° W.,
respectively. The offshore boundary of
this DPS is a straight line between these
two coordinates. The East Pacific DPS
includes the Mexican Pacific coast
breeding population, which was
originally listed as endangered (43 FR
32800, July 28, 1978).
asabaliauskas on DSK3SPTVN1PROD with RULES
Demographic Parameters for the East
Pacific DPS
The DPS exhibits an estimated total
nester abundance of 20,112 females at
39 nesting sites. The largest nesting
´
aggregation (Colola, Michoacan, Mexico)
hosts more than 10,000 nesting females.
Nesting data indicate increasing trends
in recent decades. Within the DPS, there
is additional substructure, and four
regional genetic stocks have been
identified; however, stocks mix at
foraging areas. Nesting occurs at both
insular and continental sites, providing
some spatial diversity.
Section 4(a)(1) Factors for the East
Pacific DPS
Some nesting beaches are degraded by
coastal development, tourism, and
pedestrian traffic. Some foraging areas
exhibit high levels of contaminants and
reduced seagrass communities. As
described by Senko et al. (2014), the
direct harvest of turtles is a significant
source of mortality. The legal and illegal
harvest of eggs is a significant threat due
to high demand and lack of enforcement
of existing protections. Predation by
dogs results in egg and hatchling
mortality (Ruiz-Izaguirre et al., 2015;
´
Santidrian Tomillo et al., 2015).
Existing regulatory mechanisms
inadequately regulate egg poaching, the
destruction of nesting habitat, and
fisheries bycatch. Incidental capture in
artisanal and commercial fisheries (e.g.,
longline, drift gill net, set gill net, and
trawl fisheries) is a significant threat.
Other threats include marine debris
ingestion, boat strikes, and red tide
poisoning, which may result in a UME.
Climate change is likely to impact
nesting and hatchling success. In a
recent study, Rhodes (2015) found that
females laid fewer nests in areas
characterized by erosion and tidal
inundation (two likely impacts of sea
level rise).
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Conservation Efforts for the East Pacific
DPS
Conservation initiatives include broad
regional efforts and national programs,
such as the National Programme for the
Conservation of Marine and Continental
Turtles in Colombia, which provides
education, conservation, and outreach
plans. Marine reserves protect green
turtles and their foraging habitat.
Extinction Risk Analysis for the East
Pacific DPS
The increasing trends and spatial
diversity provide the DPS with some
resilience against current threats; the
nesting abundance, though not high,
may be large enough to avoid
depensation and other risks associated
with small population size. The DPS is
threatened by the following section
4(a)(1) factors: Habitat loss and
degradation, overexploitation,
inadequate regulatory mechanisms,
fisheries bycatch, marine debris, boat
strikes, red tide poisoning, and climate
change. Though beneficial, conservation
efforts are not sufficient to adequately
reduce threats. We conclude that the
DPS is not presently in danger of
extinction throughout all or a significant
portion of its range. Listing is warranted
because significant threats (e.g., egg
poaching) continue and others (e.g.,
climate change) are increasing. The loss
of ESA protections would further
exacerbate several threats. We conclude
that the DPS is likely to become
endangered within the foreseeable
future throughout all or a significant
portion of its range.
Listing Determination for the East
Pacific DPS
For the above reasons, we list the East
Pacific DPS as a threatened species
under the ESA.
Final Determination
We reviewed the best available
scientific and commercial information,
including the information in the Status
Review Report, the comments of peer
reviewers, public comments, and
information that has become available
since the publication of the proposed
rule. We identified 11 green turtle DPSs:
North Atlantic, Mediterranean, South
Atlantic, Southwest Indian, North
Indian, East Indian-West Pacific, Central
West Pacific, Southwest Pacific, Central
South Pacific, Central North Pacific, and
East Pacific. For each DPS, we reviewed
the demographic parameters and section
4(a)(1) factors, performed an extinction
risk analysis, and considered
conservation efforts. We determined
that the Mediterranean, Central West
Pacific, and Central South Pacific DPSs
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are endangered species, and the
following DPSs are threatened species:
North Atlantic, South Atlantic,
Southwest Indian, North Indian, East
Indian-West Pacific, Southwest Pacific,
Central North Pacific, and East Pacific.
We hereby replace the original listings
for the species and breeding populations
in Florida and the Pacific coast of
Mexico with listings of the 11
threatened or endangered DPSs.
Significant Portion of the Range
Under the ESA and our implementing
regulations, a species may warrant
listing if it is endangered or threatened
throughout all or a significant portion of
its range. See the Final Policy on
Interpretation of the Phrase ‘‘Significant
Portion of Its Range’’ in the Endangered
Species Act’s Definitions of
‘‘Endangered Species’’ and ‘‘Threatened
Species’’ (79 FR 37577, July 1, 2014).
Under that policy, we only need to
consider whether listing may be
appropriate on the basis of the
‘‘significant portion of its range’’
language if the rangewide analysis does
not lead to a threatened or endangered
listing determination. Because we have
determined that each green turtle DPS is
either threatened or endangered
throughout all of its range, no portion of
its range can be ‘‘significant’’ for
purposes of the definitions of
‘‘endangered species’’ and ‘‘threatened
species.’’
Effects of Listing
Conservation benefits for species
listed as endangered or threatened
under the ESA include: Recovery plans
and actions (16 U.S.C. 1533(f));
designation of critical habitat if prudent
and determinable (16 U.S.C.
1533(a)(3)(A)(i)); the requirement that
Federal agencies consult with the
Services to ensure that their actions are
not likely to jeopardize species or result
in adverse modification or destruction
of critical habitat, should it be
designated (16 U.S.C. 1536(a)(2)); and
prohibitions against take and certain
other activities (16 U.S.C. 1538). In
addition, recognition of the species’
status through listing promotes
conservation actions by Federal and
State agencies, foreign entities,
conservation organizations, and
individuals.
Identifying Section 7(a)(2) Consultation
Requirements
Section 7(a)(2) of the ESA requires
Federal agencies to consult with the
relevant Service(s) to insure that any
action they authorize, fund, or carry out
is not likely to jeopardize the continued
existence of listed species or result in
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the destruction or adverse modification
of critical habitat (16 U.S.C. 1536(a)(2)).
The ESA requires consultation for any
Federal action that may affect green
turtles, which have been listed under
the ESA since 1978. This will not
change with the listing of the DPSs (i.e.,
consultation is required for any Federal
action that may affect any of the green
turtle DPSs). Reinitiation of consultation
is required for any action that may affect
one or more newly listed DPS. Federal
agencies must insure that any action
they authorize, fund, or carry out is not
likely to jeopardize the continued
existence of any green turtle DPS.
Examples of Federally authorized,
funded, or implemented actions that
affect green turtles include, but are not
limited to: Dredging and channelization,
beach nourishment and nearshore
construction, pile-driving, water quality
standards, oil and gas exploration and
extraction, power plant operations,
vessel activities, military activities, and
fisheries management practices.
Critical Habitat
Section 3 of the ESA defines critical
habitat as: (1) The specific areas within
the geographical area occupied by a
species, at the time it is listed in
accordance [with the ESA], on which
are found those physical or biological
features (a) essential to the conservation
of the species and (b) that may require
special management considerations or
protection; and (2) specific areas outside
the geographical area occupied by a
species at the time it is listed in
accordance [with the ESA] upon a
determination by the Services that such
areas are essential for the conservation
of the species (16 U.S.C. 1532(5)).
Section 4(a)(3)(A) requires us to
designate critical habitat to the
maximum extent prudent and
determinable and concurrently with a
listing determination (16 U.S.C.
1533(a)(3)(A)(i)), unless as described in
section 4(b)(6)(C), critical habitat is not
then determinable, in which case we
may take an additional year to publish
the final critical habitat determination
(16 U.S.C. 1533(b)(6)(C)(ii)). The
implementing regulations state that
critical habitat shall not be designated
within foreign countries or in other
areas outside of U.S. jurisdiction (50
CFR 424.12 (h)). The ranges of six DPSs
occur within U.S. jurisdiction: North
Atlantic, South Atlantic, East Pacific,
Central North Pacific, Central South
Pacific, and Central West Pacific. We are
currently evaluating the areas that
contain physical and biological features
that are essential to the DPSs and may
require special management
considerations or protection, but critical
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habitat is not determinable at this time.
Therefore, we will propose critical
habitat in a future rulemaking. As
discussed in the proposed rule,
designated critical habitat, in waters
surrounding Culebra Island, Puerto
Rico, from the mean high water line
seaward to 3 nautical miles (5.6 km; 63
FR 46693, September 2, 1998), remains
in effect for the North Atlantic DPS.
Take Prohibitions
All prohibitions in section 9(a)(1) of
the ESA (16 U.S.C. 1538(a)(1)) apply
automatically under the statute to the
three endangered DPSs: Mediterranean,
Central West Pacific and Central South
Pacific. These include prohibitions
against importing, exporting, engaging
in foreign or interstate commerce, or
‘‘taking’’ of the species. ‘‘Take’’ is
defined under the ESA as ‘‘to harass,
harm, pursue, hunt, shoot, wound, kill,
trap, capture, or collect, or attempt to
engage in any such conduct’’ (16 U.S.C.
1532(19)). These prohibitions apply to
any ‘‘person’’ (as defined by the ESA)
subject to the jurisdiction of the United
States, including within the United
States, its territorial seas, or on the high
seas. Certain exceptions apply to
employees of the Services, other Federal
land management agencies, and State
conservation agencies. In addition,
longstanding requirements for fishing
activities to protect endangered sea
turtles apply to these DPSs (50 CFR
224.104) and are not affected by this
rule.
Section 4(d) of the ESA authorizes us
to issue regulations that we deem
necessary and advisable to provide for
the conservation of threatened species
(16 U.S.C. 1533(d)). As discussed in the
proposed rule, the longstanding
protective regulations (50 CFR 17.42(b),
223.205, 223.206, and 223.207) remain
in effect and continue to apply section
9 prohibitions to threatened species of
sea turtles, which include the North
Atlantic, South Atlantic, Southwest
Indian, North Indian, East Indian-West
Pacific, Southwest Pacific, Central
North Pacific, and East Pacific DPSs.
The specific content of those provisions
is beyond the scope of this rulemaking
and is unaffected by this rulemaking.
Pursuant to section 10 of the ESA, we
may issue permits to carry out activities
otherwise prohibited by section 9 for
scientific purposes, to enhance the
propagation or survival of the species,
and for incidental take in connection
with otherwise lawful activities (16
U.S.C. 1539(a)(1)). For threatened
species, we may also issue permits for
education and zoological exhibition (50
CFR 17.32(a)(1); 50 CFR 223.206(a)(1)).
PO 00000
Frm 00029
Fmt 4701
Sfmt 4700
20085
Identification of Those Activities That
Would Likely Constitute a Violation of
Section 9 of the ESA
On July 1, 1994, we published a
policy (59 FR 34272) that requires us to
identify, to the maximum extent
practicable at the time a species is
listed, those activities that would or
would not likely constitute a violation
of section 9 of the ESA. The intent of
this policy is to increase public
awareness of the effect of a listing on
proposed and ongoing activities within
a species’ range. Activities likely to
violate section 9 include, but are not
limited to: (1) Importation or
exportation of any part of a green turtle
or green turtle eggs; (2) directed take of
green turtles, including fishing for,
capturing, handling, or possessing green
turtles, eggs, or parts; (3) sale of green
turtles, eggs, or parts in interstate
commerce; (4) modification or
degradation of green turtle habitat,
including nesting beaches, beaches used
for basking, and developmental,
foraging habitat, and migratory habitat
that actually kills or injures green turtles
(i.e., harm, 50 CFR 222.102); and (5)
indirect take of green turtles in the
course of otherwise lawful activities,
such as fishing, dredging, beach
nourishment, coastal construction,
vessel traffic, and discharge of
pollutants. Whether a particular activity
violates section 9 depends upon the
facts and circumstances of each
incident. Because the green turtle has
been listed under the ESA since 1978,
we do not anticipate changes in the
activities that would constitute a
violation of section 9. Possible
exceptions include those actions
affecting the Mediterranean, Central
West Pacific, and Central South Pacific
DPSs, which are now listed as
endangered, and the breeding
populations in Florida and the Pacific
coast of Mexico, which were heretofore
listed as endangered. For example, the
Services may issue permits for the
educational use and zoological
exhibition of threatened, but not
endangered, sea turtles (50 CFR
17.32(a)(1); 50 CFR 223.206(a)(1)).
Activities not likely to violate section
9 of the ESA may include: Take
authorized by and carried out in
accordance with the terms and
conditions of an ESA section 10(a)(1)(A)
permit; and continued possession of
parts that were in possession at the time
of the original listing (i.e., 1978).
Peer Review
In December 2004, the Office of
Management and Budget (OMB) issued
a Final Information Quality Bulletin for
E:\FR\FM\06APR2.SGM
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Federal Register / Vol. 81, No. 66 / Wednesday, April 6, 2016 / Rules and Regulations
Peer Review, establishing minimum
peer review standards, a transparent
process for public disclosure of peer
review planning, and opportunities for
public participation. The OMB Bulletin,
implemented under the Information
Quality Act (Pub. L. 106–554), is
intended to enhance the quality and
credibility of the Federal government’s
scientific information and applies to
influential or highly influential
scientific information disseminated on
or after June 16, 2005. To satisfy our
requirements under the OMB Bulletin,
we obtained independent peer review of
the Status Review Report by 15
independent scientists with expertise in
green turtle biology and genetics,
endangered species listing policy, and
related fields. All peer reviewer
comments were addressed prior to the
publication of the Status Review Report
and proposed rule.
National Environmental Policy Act. See
NOAA Administrative Order 216–6.
Similarly, USFWS has determined that
environmental assessments and
environmental impact statements, as
defined under the authority of the
National Environmental Policy Act,
need not be prepared in connection
with regulations pursuant to section 4(a)
of the ESA (48 FR 49244, October 25,
1983).
Executive Order 12866, Regulatory
Flexibility Act, and Paperwork
Reduction Act
National Environmental Policy Act
Executive Order 13132, Federalism
The 1982 amendments to section
4(b)(1)(A) of the ESA restrict the
information that may be considered
when assessing species for listing. Based
on this limitation of criteria for a listing
decision and the opinion in Pacific
Legal Foundation v. Andrus, 657 F. 2d
829 (6th Cir. 1981), NMFS has
concluded that ESA listing actions are
not subject to the requirements of the
In accordance with Executive Order
13132, we determined that this final
rule does not have significant
Federalism effects and that a Federalism
assessment is not required.
50 CFR Part 17
Common name
Vertebrate population
where endangered or
threatened
Scientific name
*
REPTILES
*
asabaliauskas on DSK3SPTVN1PROD with RULES
*
Sea turtle, green
(Central North
Pacific DPS).
VerDate Sep<11>2014
*
*
Chelonia mydas
19:33 Apr 05, 2016
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Fmt 4701
For the reasons set out in the
preamble, 50 CFR parts 17, 223, and 224
are amended as follows:
PART 17—ENDANGERED AND
THREATENED WILDLIFE AND PLANTS
1. The authority citation for part 17
continues to read as follows:
■
Authority: 16 U.S.C. 1361–1407; 1531–
1544; and 4201–4245, unless otherwise
noted.
2. In § 17.11(h), under REPTILES,
remove both entries for ‘‘Sea turtle,
green’’ and add in their place the eleven
entries for ‘‘Sea turtle, green’’ set forth
below:
■
*
*
Sfmt 4700
*
*
(h) * * *
When
listed
*
*
Green sea turtles originating from the Central
North Pacific Ocean,
bounded by the following coordinates: 41°
N., 169° E. in the northwest; 41° N., 143° W. in
the northeast; 9° N.,
125° W. in the southeast; and 9° N., 175° W.
in the southwest.
Frm 00030
Acting Director, U.S. Fish and Wildlife
Service.
Status
*
*
Central North Pacific Ocean.
Assistant Administrator for Fisheries,
National Marine Fisheries Service.
*
Endangered and threatened species,
Exports, Imports, Reporting and
Historic range
Dated: March 29, 2016.
Eileen Sobeck,
§ 17.11 Endangered and threatened
wildlife.
List of Subjects
Species
Endangered and threatened species,
Exports, Imports, Transportation.
Stephen Guertin,
Classification
A complete list of the references is
available at: https://www.nmfs.noaa.gov/
pr/species/turtles/green.htm.
50 CFR Parts 223 and 224
Dated: March 15, 2016.
As noted in the Conference Report on
the 1982 amendments to the ESA,
economic impacts cannot be considered
when assessing the status of a species.
Therefore, the economic analysis
requirements of the Regulatory
Flexibility Act are not applicable to the
listing process. In addition, this final
rule is exempt from review under
Executive Order 12866. This final rule
does not contain a collection-ofinformation requirement for the
purposes of the Paperwork Reduction
Act.
References
recordkeeping requirements,
Transportation.
*
*
T
E:\FR\FM\06APR2.SGM
Critical
habitat
*
*
863
06APR2
Special rules
NA
*
17.42(b),
223.205,
223.206,
223.207.
Federal Register / Vol. 81, No. 66 / Wednesday, April 6, 2016 / Rules and Regulations
Species
Vertebrate population
where endangered or
threatened
Historic range
Scientific name
Sea turtle, green
(Central South
Pacific DPS).
Chelonia mydas
Central South
Pacific Ocean.
Sea turtle, green
(Central West
Pacific DPS).
Chelonia mydas
Central West Pacific Ocean.
Sea turtle, green
(East IndianWest Pacific
DPS).
Chelonia mydas
Eastern Indian
and Western
Pacific Oceans.
Sea turtle, green
(East Pacific
DPS).
Chelonia mydas
East Pacific
Ocean.
Sea turtle, green
(Mediterranean
DPS).
asabaliauskas on DSK3SPTVN1PROD with RULES
Common name
Chelonia mydas
Mediterranean
Sea.
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Green sea turtles originating from the Central
South Pacific Ocean,
bounded by the following coordinates: 9°
N., 175° W. in the northwest; 9° N., 125° W. in
the northeast; 40° S.,
96° W. in the southeast;
40° S., 176° E. in the
southwest; and 13° S.,
171° E. in the west.
Green sea turtles originating from the Central
West Pacific Ocean,
bounded by the following coordinates: 41°
N., 146° E. in the northwest; 41° N., 169° E. in
the northeast; 9° N.,
175° W. in the east; 13°
S., 171° E. in the southeast; along the northern
coast of the island of
New Guinea; and 4.5°
N., 129° E. in the west.
Green sea turtles originating from the Eastern
Indian and Western Pacific Oceans, bounded
by the following lines
and coordinates: 41° N.
Lat. in the north, 41° N.,
146° E. in the northeast;
4.5° N., 129° E. in the
southeast; along the
southern coast of the island of New Guinea;
along the western coast
of Australia (west of
142° E. Long.); 40° S.
Lat. in the south; and
84° E. Long. in the east.
Green sea turtles originating from the East Pacific Ocean, bounded by
the following lines and
coordinates: 41° N.,
143° W. in the northwest; 41° N. Lat. in the
north; along the western
coasts of the Americas;
40° S. Lat. in the south;
and 40° S., 96° W. in
the southwest.
Green sea turtles originating from the Mediterranean Sea, bounded
by 5.5° W. Long. in the
west.
Frm 00031
Fmt 4701
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Status
When
listed
Critical
habitat
20087
Special rules
E
863
NA
224.104.
E
863
NA
224.104.
T
863
NA
17.42(b),
223.205,
223.206,
223.207.
T
863
NA
17.42(b),
223.205,
223.206,
223.207.
E
863
NA
224.104.
E:\FR\FM\06APR2.SGM
06APR2
20088
Federal Register / Vol. 81, No. 66 / Wednesday, April 6, 2016 / Rules and Regulations
Species
Vertebrate population
where endangered or
threatened
Historic range
Scientific name
Sea turtle, green
(North Atlantic
DPS).
Chelonia mydas
North Atlantic
Ocean.
Sea turtle, green
(North Indian
DPS).
Chelonia mydas
North Indian
Ocean.
Sea turtle, green
(South Atlantic
DPS).
Chelonia mydas
South Atlantic
Ocean.
Sea turtle, green
(Southwest Indian DPS).
Chelonia mydas
Southwest Indian
Ocean.
Sea turtle, green
(Southwest Pacific DPS).
asabaliauskas on DSK3SPTVN1PROD with RULES
Common name
Chelonia mydas
Southwest Pacific
Ocean.
*
VerDate Sep<11>2014
*
19:33 Apr 05, 2016
Green sea turtles originating from the North
Atlantic Ocean, bounded by the following lines
and coordinates: 48° N.
Lat. in the north, along
the western coasts of
Europe and Africa (west
of 5.5° W. Long.); north
of 19° N. Lat. in the
east; bounded by 19°
N., 65.1° W. to 14° N.,
65.1° W. then 14° N.,
77° W. in the south and
west; and along the
eastern coasts of the
Americas (north of 7.5°
N., 77° W.).
Green sea turtles originating from the North
Indian Ocean, bounded
by: Africa and Asia in
the west and north; 84°
E. Long. in the east;
and the equator in the
south.
Green sea turtles originating from the South
Atlantic Ocean, bounded by the following lines
and coordinates: along
the northern and eastern coasts of South
America (east of 7.5°
N., 77° W.); 14° N., 77°
W. to 14° N., 65.1° W.
to 19° N., 65.1° W. in
the north and west; 19°
N. Lat. in the northeast;
40° S., 19° E. in the
southeast; and 40° S.
Lat. in the south.
Green sea turtles originating from the Southwest Indian Ocean,
bounded by the following lines: the equator
to the north; 84° E.
Long. to the east; 40° S.
Lat. to the south; and
19° E. Long (and along
the eastern coast of Africa) in the west.
Green sea turtles originating from the Southwest Pacific Ocean,
bounded by the following lines and coordinates: along the southern coast of the island
of New Guinea and the
Torres Strait (east of
142° E Long.); 13° S.,
171° E. in the northeast;
40° S., 176° E. in the
southeast; and 40° S.,
142° E. in the southwest.
*
Jkt 238001
PO 00000
*
Frm 00032
Fmt 4701
Status
When
listed
Special rules
T
863
226.208
17.42(b),
223.205,
223.206,
223.207.
T
863
NA
17.42(b),
223.205,
223.206,
223.207.
T
863
NA
17.42(b),
223.205,
223.206,
223.207.
T
863
NA
17.42(b),
223.205,
223.206,
223.207.
T
863
NA
17.42(b),
223.205,
223.206,
223.207.
*
Sfmt 4700
Critical
habitat
E:\FR\FM\06APR2.SGM
*
06APR2
*
20089
Federal Register / Vol. 81, No. 66 / Wednesday, April 6, 2016 / Rules and Regulations
PART 223—THREATENED MARINE
AND ANADROMOUS SPECIES
1361 et seq.; 16 U.S.C. 5503(d) for
§ 223.206(d)(9).
entries for ‘‘Sea turtle, green’’ under
Reptiles to read as follows:
3. The authority citation for part 223
continues to read as follows:
■
4. Amend the table in § 223.102(e) by
removing the entry for ‘‘Sea turtle,
green’’ and adding in its place the eight
§ 223.102 Enumeration of threatened
marine and anadromous species.
■
Authority: 16 U.S.C. 1531–1543; subpart B,
§ 223.201–202 also issued under 16 U.S.C.
Species 1
Common name
*
*
Sea turtle, green
(East Indian-West
Pacific DPS).
Chelonia mydas ....
Sea turtle, green
(East Pacific
DPS).
Chelonia mydas ....
Sea turtle, green
(North Atlantic
DPS).
Chelonia mydas ....
Sea turtle, green
(North Indian
DPS).
Chelonia mydas ....
Sea turtle, green
(South Atlantic
DPS).
asabaliauskas on DSK3SPTVN1PROD with RULES
Chelonia mydas ....
Chelonia mydas ....
18:59 Apr 05, 2016
*
*
(e) * * *
Jkt 238001
Description of listed entity
*
*
Citation(s) for listing
determination(s)
*
Scientific name
Sea turtle, green
(Central North
Pacific DPS).
VerDate Sep<11>2014
*
*
Reptiles 2
Green sea turtles originating from the
Central North Pacific Ocean, bounded by the following coordinates: 41°
N., 169° E. in the northwest; 41° N.,
143° W. in the northeast; 9° N., 125°
W. in the southeast; and 9° N., 175°
W. in the southwest.
Green sea turtles originating from the
Eastern Indian and Western Pacific
Oceans, bounded by the following
lines and coordinates: 41° N. Lat. in
the north, 41° N., 146° E. in the
northeast; 4.5° N., 129° E. in the
southeast; along the southern coast
of the island of New Guinea; along
the western coast of Australia (west
of 142° E. Long.); 40° S. Lat. in the
south; and 84° E. Long. in the east.
Green sea turtles originating from the
East Pacific Ocean, bounded by the
following lines and coordinates: 41°
N., 143° W. in the northwest; 41° N.
Lat. in the north; along the western
coasts of the Americas; 40° S. Lat.
in the south; and 40° S., 96° W. in
the southwest.
Green sea turtles originating from the
North Atlantic Ocean, bounded by
the following lines and coordinates:
48° N. Lat. in the north, along the
western coasts of Europe and Africa
(west of 5.5° W. Long.); north of 19°
N. Lat. in the east; bounded by 19°
N., 65.1° W. to 14° N., 65.1° W. then
14° N., 77° W. in the south and
west; and along the eastern coasts
of the Americas (north of 7.5° N., 77°
W.).
Green sea turtles originating from the
North Indian Ocean, bounded by: Africa and Asia in the west and north;
84° E. Long. in the east; and the
equator in the south.
Green sea turtles originating from the
South Atlantic Ocean, bounded by
the following lines and coordinates:
Along the northern and eastern
coasts of South America (east of
7.5° N., 77° W.); 14° N., 77° W. to
14° N., 65.1° W. to 19° N., 65.1° W.
in the north and west; 19° N. Lat. in
the northeast; 40° S., 19° E. in the
southeast; and 40° S. Lat. in the
south.
PO 00000
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Fmt 4701
Sfmt 4700
*
Critical
habitat
*
ESA rules
*
81 FR [Insert Federal Register
page where the document
begins], 4/6/16.
NA
223.205,
223.206,
223.207.
81 FR [Insert Federal Register
page where the document
begins], 4/6/16.
NA
223.205,
223.206,
223.207.
81 FR [Insert Federal Register
page where the document
begins], 4/6/16.
NA
223.205,
223.206,
223.207.
81 FR [Insert Federal Register
page where the document
begins], 4/6/16.
226.208
223.205,
223.206,
223.207.
81 FR [Insert Federal Register
page where the document
begins], 4/6/16.
NA
223.205,
223.206,
223.207.
81 FR [Insert Federal Register
page where the document
begins], 4/6/16.
NA
223.205,
223.206,
223.207.
E:\FR\FM\06APR2.SGM
06APR2
20090
Federal Register / Vol. 81, No. 66 / Wednesday, April 6, 2016 / Rules and Regulations
Species 1
Citation(s) for listing
determination(s)
Common name
Scientific name
Description of listed entity
Sea turtle, green
(Southwest Indian
DPS).
Chelonia mydas ....
Sea turtle, green
(Southwest Pacific DPS).
Chelonia mydas ....
Green sea turtles originating from the
Southwest Indian Ocean, bounded
by the following lines: The equator to
the north; 84° E. Long. to the east;
40° S. Lat. to the south; and 19° E.
Long (and along the eastern coast of
Africa) in the west.
Green sea turtles originating from the
Southwest Pacific Ocean, bounded
by the following lines and coordinates: Along the southern coast of
the island of New Guinea and the
Torres Strait (east of 142° E Long.);
13° S., 171° E. in the northeast; 40°
S., 176° E. in the southeast; and 40°
S., 142° E. in the southwest.
*
*
*
Critical
habitat
ESA rules
81 FR [Insert Federal Register
page where the document
begins], 4/6/16.
NA
223.205,
223.206,
223.207.
81 FR [Insert Federal Register
page where the document
begins], 4/6/16.
NA
223.205,
223.206,
223.207.
*
*
*
*
1 Species
includes taxonomic species, subspecies, distinct population segments (DPSs) (for a policy statement, see 61 FR 4722, February 7,
1996), and evolutionarily significant units (ESUs) (for a policy statement, see 56 FR 58612, November 20, 1991).
2 Jurisdiction for sea turtles by the Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries
Service, is limited to turtles while in the water.
Authority: 16 U.S.C. 1531–1543 and 16
U.S.C. 1361 et seq.
‘‘Sea turtle, green’’ under Reptiles to
read as follows:
6. Amend § 224.101(h) by removing
the entry for ‘‘Sea turtle, green’’ and
adding in its place the three entries for
PART 224—ENDANGERED MARINE
AND ANADROMOUS SPECIES
§ 224.101 Enumeration of endangered
marine and anadromous species.
■
5. The authority citation for part 224
continues to read as follows:
■
Species 1
Common name
*
Sea turtle, green
(Central South
Pacific DPS).
Chelonia mydas ....
Sea turtle, green
(Central West Pacific DPS).
Chelonia mydas ....
Sea turtle, green
(Mediterranean
DPS).
asabaliauskas on DSK3SPTVN1PROD with RULES
*
*
(h) * * *
Chelonia mydas ....
*
Description of listed entity
*
*
Citation(s) for listing
determination(s)
*
Scientific name
*
*
*
*
Reptiles 2
Green sea turtles originating from the
Central South Pacific Ocean, bounded by the following coordinates: 9°
N., 175° W. in the northwest; 9° N.,
125° W. in the northeast; 40° S., 96°
W. in the southeast; 40° S., 176° E.
in the southwest; and 13° S., 171° E.
in the west.
Green sea turtles originating from the
Central West Pacific Ocean, bounded by the following coordinates: 41°
N., 146° E. in the northwest; 41° N.,
169° E. in the northeast; 9° N., 175°
W. in the east; 13° S., 171° E. in the
southeast; along the northern coast
of the island of New Guinea; and
4.5° N., 129° E. in the west.
Green sea turtles originating from the
Mediterranean Sea, bounded by 5.5°
W. Long. in the west.
*
*
*
Critical
habitat
*
ESA rules
*
81 FR [Insert Federal Register
page where the document
begins], 4/6/16.
NA
224.104.
81 FR [Insert Federal Register
page where the document
begins], 4/6/16.
NA
224.104.
81 FR [Insert Federal Register
page where the document
begins], 4/6/16.
NA
224.104.
*
*
1 Species
*
includes taxonomic species, subspecies, distinct population segments (DPSs) (for a policy statement, see 61 FR 4722, February 7,
1996), and evolutionarily significant units (ESUs) (for a policy statement, see 56 FR 58612, November 20, 1991).
2 Jurisdiction for sea turtles by the Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries
Service, is limited to turtles while in the water.
[FR Doc. 2016–07587 Filed 4–5–16; 8:45 am]
BILLING CODE 3510–22–P
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06APR2
Agencies
[Federal Register Volume 81, Number 66 (Wednesday, April 6, 2016)]
[Rules and Regulations]
[Pages 20057-20090]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-07587]
[[Page 20057]]
Vol. 81
Wednesday,
No. 66
April 6, 2016
Part II
Department of the Interior
-----------------------------------------------------------------------
Fish and Wildlife Service
-----------------------------------------------------------------------
50 CFR Part 17
-----------------------------------------------------------------------
Department of Commerce
-----------------------------------------------------------------------
National Oceanic and Atmospheric Administration
-----------------------------------------------------------------------
50 CFR Parts 223 and 224
Endangered and Threatened Wildlife and Plants; Final Rule To List
Eleven Distinct Population Segments of the Green Sea Turtle (Chelonia
mydas) as Endangered or Threatened and Revision of Current Listings
Under the Endangered Species Act; Final Rule
Federal Register / Vol. 81 , No. 66 / Wednesday, April 6, 2016 /
Rules and Regulations
[[Page 20058]]
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DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
50 CFR Parts 223 and 224
[Docket No. 120425024-6232-06]
RIN 0648-XB089
Endangered and Threatened Wildlife and Plants; Final Rule To List
Eleven Distinct Population Segments of the Green Sea Turtle (Chelonia
mydas) as Endangered or Threatened and Revision of Current Listings
Under the Endangered Species Act
AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and
Atmospheric Administration (NOAA), Commerce; United States Fish and
Wildlife Service (USFWS), Interior.
ACTION: Final rule.
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SUMMARY: NMFS and USFWS issue a final rule to list 11 distinct
population segments (DPSs) of the green sea turtle (Chelonia mydas;
hereafter referred to as the green turtle) under the Endangered Species
Act (ESA). Based on the best available scientific and commercial data,
and after considering comments on the proposed rule, we have determined
that three DPSs are endangered species and eight DPSs are threatened
species. This rule supersedes the 1978 final listing rule for green
turtles. It applies the existing protective regulations to the DPSs.
Critical habitat is not determinable at this time but will be proposed
in a future rulemaking. In the interim, the existing critical habitat
designation (i.e., waters surrounding Culebra Island, Puerto Rico)
remains in effect for the North Atlantic DPS.
DATES: This final rule is effective May 6, 2016.
ADDRESSES: Office of Protected Resources, National Marine Fisheries
Service, 1315 East-West Highway, Room 13535, Silver Spring, MD 20910;
or U.S. Fish and Wildlife Service, North Florida Ecological Services
Office, 7915 Baymeadows Way, Suite 200, Jacksonville, FL 32256. The
final rule, list of references, and other materials relating to this
determination can be found at: https://www.nmfs.noaa.gov/pr/species/turtles/green.htm.
FOR FURTHER INFORMATION CONTACT: Jennifer Schultz, NMFS (ph. 301-427-
8443, email jennifer.schultz@noaa.gov), or Ann Marie Lauritsen, USFWS
(ph. 904-731-3032, email annmarie_lauritsen@fws.gov). Persons who use a
Telecommunications Device for the Deaf (TDD) may call the Federal
Information Relay Service (FIRS) at 1-800-877-8339, 24 hours a day, and
7 days a week.
SUPPLEMENTARY INFORMATION:
Background
On July 28, 1978, NMFS and USFWS, collectively referred to as the
Services, listed the green turtle under the ESA (43 FR 32800). Pursuant
to the authority that the statute provided, and prior to the current
statutory definition of ``species'' that includes DPSs, we listed the
species as threatened, except for the Florida and Mexican Pacific coast
breeding populations, which we listed as endangered. We published
recovery plans for U.S. Atlantic (NMFS and USFWS, 1991) and U.S.
Pacific (including the East Pacific; 63 FR 28359, May 22, 1998; NMFS
and USFWS, 1998) populations of the green turtle (https://www.nmfs.noaa.gov/pr/recovery/plans.htm). NMFS designated critical
habitat for the species to include waters surrounding Culebra Island,
Puerto Rico, and its outlying keys (63 FR 46693, September 2, 1998).
On February 16, 2012, we received a petition from the Association
of Hawaiian Civic Clubs to identify the Hawaiian green turtle
population as a DPS and ``delist'' it. On August 1, 2012, NMFS, with
USFWS concurrence, determined that the petition presented substantial
information indicating that the petitioned action may be warranted (77
FR 45571). Our 5-year review (NMFS and USFWS, 2007) also recommended a
review of the status of the species, in light of significant new
information since its listing and in accordance with our DPS joint
policy (61 FR 4722, February 7, 1996). We convened a Status Review
Team, green turtle and ESA experts within the Services, who conducted a
comprehensive status review of the species and published their findings
as the ``Status Review of the Green Turtle (Chelonia mydas) under the
Endangered Species Act'' (Seminoff et al., 2015; hereafter referred to
as the Status Review Report and available at https://www.nmfs.noaa.gov/pr/species/Status%20Reviews/green_turtle_sr_2015.pdf). The Status
Review Report was peer-reviewed by 15 independent scientists with
expertise in green turtle biology, genetics, endangered species policy,
or related fields. We used the Status Review Report and additional
information, which together provided the best available scientific and
commercial data, to make our listing determinations.
On March 23, 2015, we published the 12-month finding on the
petition and proposed rule (80 FR 15271). We proposed to remove the
existing ESA listings from 1978 and, in their place, list three
endangered (Mediterranean, Central West Pacific, and Central South
Pacific) and eight threatened (North Atlantic, South Atlantic,
Southwest Indian, North Indian, East Indian-West Pacific, Southwest
Pacific, Central North Pacific, and East Pacific) DPSs. We opened a 90-
day comment period on the proposed rule and extended this comment
period three times until September 25, 2015, for a total of 187 days
(i.e., just over 6 months).
Listing Determinations Under the ESA
Section 4(a)(1) of the ESA requires us to determine by regulation
whether ``any species is an endangered species or a threatened species
because of any of the following factors: (A) The present or threatened
destruction, modification, or curtailment of its habitat or range; (B)
overutilization for commercial, recreational, scientific, or
educational purposes; (C) disease or predation; (D) the inadequacy of
existing regulatory mechanisms; or (E) other natural or manmade factors
affecting its continued existence'' (16 U.S.C. 1533(a)(1); hereafter,
the section 4(a)(1) factors). Section 3 of the ESA defines a
``species'' as ``any subspecies of fish or wildlife or plants, and any
DPS of any species of vertebrate fish or wildlife which interbreeds
when mature'' (16 U.S.C. 1532(16)). Section 3 of the ESA further
defines an ``endangered species'' as ``any species which is in danger
of extinction throughout all or a significant portion of its range''
and a ``threatened species'' as one ``which is likely to become an
endangered species within the foreseeable future throughout all or a
significant portion of its range'' (16 U.S.C. 1532(6), (20)). The U.S.
District Court for the District of Columbia noted that Congress
included ``a temporal element to the distinction between the categories
of endangered and threatened species.'' In Re Polar Bear Endangered
Species Act Listing and Sec. 4(d) Rule Litigation, 794 F. Supp.2d 65,
89 n. 27. (D.D.C. 2011). Thus, we interpretlan ``endangered species''
to be one that is presently in danger of extinction. A ``threatened
species,'' on the other hand, is not presently in danger of extinction,
but is likely to become so within the foreseeable future (i.e., at a
later time). In other words, the primary statutory difference between a
threatened and endangered species is the timing of
[[Page 20059]]
when a species may be in danger of extinction, either presently
(endangered) or within the foreseeable future (threatened). As we
explained in the proposed rule, the foreseeable future applied in a
particular listing determination must take into account the life
history of the species, habitat characteristics, availability of data,
particular threats under consideration, the ability to predict those
threats, and the reliability of forecasts of changes in the species'
status in response to the threats. See also ``The Meaning of
`Foreseeable Future' in Section 3(20) of the Endangered Species Act,''
(M-37021, U.S. Department of the Interior, Office of the Solicitor,
January 16, 2009).
The ESA does not define ``distinct population segment,'' but our
1996 joint policy identifies three elements that must be considered
when identifying a DPS: (1) The discreteness of the population segment
in relation to the remainder of the species to which it belongs; (2)
the significance of the population segment to the species to which it
belongs; and (3) the population segment's conservation status (i.e.,
endangered or threatened; 61 FR 4722, February 7, 1996). Section
4(c)(1) of the ESA requires us to revise the lists of threatened and
endangered species to reflect recent determinations to list, remove, or
change the status of a species (16 U.S.C. 1533(c)(1)). Section
4(b)(1)(A) requires us to make such determinations ``solely on the
basis of the best scientific and commercial data available . . . after
conducting a review of the status of the species'' and after
considering conservation efforts (16 U.S.C. 1533(b)(1)(A)). This can be
thought of as consisting of two steps: The status review and the
listing determinations.
As we described more fully in the proposed rule, to identify
potential DPSs, the Status Review Team members gathered the best
available scientific and commercial data on green turtles. They
evaluated the discreteness and significance of population segments. For
each potential DPS, they described the demographic parameters that
influence population persistence (i.e., abundance, growth rate or
trend, spatial structure or connectivity, and diversity or resilience;
McElhany et al., 2000) and analyzed the section 4(a)(1) factors (16
U.S.C. 1533(a)(1)). For their analyses, the Status Review Team used a
foreseeable future of 100 years, which represents approximately three
generations of green turtles and is often used for projections of
extinction risk in recovery plans and status reviews for long-lived
species, such as whales and sea turtles (Angliss et al., 2002; NMFS,
2005, 2010, 2011; Conant et al., 2009; Seminoff et al., 2015). To
assess extinction risk, the Status Review Team used a critical risk
threshold (i.e., quasi-extinction), which they defined as being met
where a DPS, ``has such low abundance, declining trends, limited
distribution or diversity, and/or significant threats (untempered by
significant conservation efforts) that the DPS would be at very high
risk of extinction with little chance for recovery'' (Seminoff et al.,
2015). The Status Review Team did not consider the potential loss of
ESA protections (i.e., potential determination not to list a DPS) in
their analyses. They incorporated all information and analyses into the
Status Review Report.
We reviewed the Status Review Report and concluded that it provided
the best available scientific and commercial data on the identification
of DPSs, demographic parameters, and section 4(a)(1) factors, with two
exceptions. First, in evaluating the extinction risk of a DPS, we
cannot assume the retention of ESA protections, which would no longer
apply if a DPS was not listed under the ESA. Second, the critical risk
threshold (i.e., quasi-extinction) does not directly correlate with the
ESA definitions of ``endangered'' and ``threatened'' because it
requires a condition worse than endangered (i.e., ``very high risk of
extinction'') and essentially precludes recovery (i.e., ``little chance
for recovery''). The latter is contrary to the fundamental purpose of
the ESA, which is to conserve threatened and endangered species.
Section 3 of the ESA defines conservation as ``to use and the use of
all methods and procedures which are necessary to bring any endangered
species or threatened species to the point at which the measures
provided pursuant to [the ESA] are no longer necessary'' (16 U.S.C.
1532); our implementing regulations add ``i.e., the species is
recovered'' (50 CFR 424.02). Therefore, we did not use the critical
risk threshold to make our listing determinations.
To make the listing determinations, we used the best available
scientific and commercial data on the green turtle, which are
summarized in the Status Review Report and incorporated herein. We
applied information from the Status Review Report on the identification
of DPSs, demographic parameters, and section 4(a)(1) factors, but we
did not apply the critical risk threshold. Instead, we directly
evaluated the section 4(a)(1) factors in the context of the demographic
parameters and considered the potential loss of ESA protections that
would result if we did not list a DPS as threatened or endangered under
the ESA. After considering conservation efforts by States and foreign
nations to protect the DPS, as required under section 4(b)(1)(A), we
proposed listing determinations based on the statutory definitions of
endangered and threatened species (80 FR 15271, March 23, 2015). To
make our final listing determinations, we reviewed all information
provided during the 6-month public comment period and additional
scientific and commercial data that became available since the
publication of the proposed rule. However, this additional information
merely supplemented, and did not differ significantly from, the
information presented in the proposed rule. We received no significant
new information that would cause us to change our listing
determinations. With this rule, we finalize our proposed listing
determinations.
Summary of Comments
We solicited comments on the proposed rule from all interested
parties (80 FR 15271, March 23, 2015). Specifically, we requested
information regarding: (1) Historical and current population status and
trends; (2) historical and current distribution; (3) migratory
movements and behavior; (4) genetic population structure; (5) current
or planned activities that may adversely affect green turtles; (6)
conservation efforts to protect green turtles; and (7) our extinction
risk analysis and findings. We considered all comments received, which
included 905 comments from the public, government agencies, the
scientific community, industry, and environmental organizations. The
majority of comments (over 800) expressed support for the proposed
listings. Some commenters requested that all DPSs be listed as
endangered, and some commenters disagreed with the proposed status of
one or more DPSs. We summarize all comments below by first addressing
topics that apply to multiple DPSs; we then address comments specific
to a particular DPS.
Comments on Topics That Apply to Multiple DPSs
Comment 1: We received several comments regarding public
engagement. We received several requests for public hearings in Hawaii,
Guam, the Commonwealth of the Northern Mariana Islands (CNMI), and
American Samoa. One commenter stated that there has been inadequate
public engagement.
Response: We held public hearings in Hawaii, Guam, CNMI, and
American Samoa, exceeding our regulatory obligation of holding at least
one public hearing (50 CFR 424.16(c)(1)). Further,
[[Page 20060]]
we encouraged maximum public participation by extending the 90-day
public comment period three times, for a total of 6 months. We made all
relevant information (both as to the substance of the proposed rule and
opportunities for public participation) available on our Web pages,
notified the petitioner via phone and email, provided informational
meetings via internet and telephone (i.e., ``webinars''), and addressed
questions on the proposed rule via phone and email. We have thus
facilitated considerable public engagement, which has been sufficient
to inform our final determinations.
Comment 2: We received several comments on our approach for
identifying DPSs. One commenter stated that while the DPS concept
started under the ESA, it is now used generally in the scientific
literature. The commenter also asked whether alternatives were
considered, such as combining the North and South Atlantic DPSs and
combining Indian Ocean DPSs, for ease of application of the ESA. Two
commenters requested a discussion of the potential limitations of
mitochondrial DNA (mtDNA) for identifying DPSs, including limited
sequencing information, maternal inheritance, and neutral genetic
diversity. One commenter requested clarification on our evaluation of
genetic population structure at nesting sites, and one commenter asked
where green turtles mate. One commenter agreed with the designations,
stating that the designation of DPSs has little potential for negative
consequences, whereas the over-generalized species listing will
continue to yield non-individualized conservation methods and runs the
risk of greater population losses. One commenter provided additional
scientific information in support of the DPSs; the commenter stated
that the DPSs may require reevaluation in the future as new information
becomes available.
Response: For a detailed explanation of the application of our DPS
policy to the green turtle, please see the Status Review Report and
proposed rule. We provide a short summary in the previous section
entitled, Listing Determinations under the ESA.
Though the term ``distinct population segment'' may be used
generally in the scientific literature, our use of the term throughout
the proposed and final rules refers to the legal term, ``distinct
population segment,'' as used specifically in the statute and our
binding policy, which we promulgated after reviewing public comment (16
U.S.C. 1532 (16); 61 FR 4722, February 7, 1996). The Status Review Team
considered other potential DPSs, including 17 regional management units
identified by Wallace et al. (2010); however, the criteria for those
management units differed from those outlined under our DPS policy (61
FR 4722, February 7, 1996). We did not combine or separate DPSs to
facilitate application of the ESA because we concluded it was more
important to retain a consistent approach to all DPSs. We agree that
the identification of DPSs will allow us to provide the most
appropriate and effective conservation strategy for each DPS; however,
Congress instructs us to exercise our authority with regard to DPSs
``sparingly and only when the biological evidence indicates that such
action is warranted'' (S. Rept. 96-151 (1979)).
Our DPS policy requires a DPS be ``discrete'' and ``significant''
(61 FR 4722, February 7, 1996). To evaluate discreteness, the Status
Review Team considered tagging and telemetry, morphology, oceanographic
and ecological features, and genetic data. The genetic data included
previously published studies of biparentally (nuclear DNA) and
maternally (mtDNA) inherited neutral genetic markers (Seminoff et al.,
2015). In addition, the Status Review Team considered a global
phylogenetic analysis based on nearly 400 base pairs of mtDNA sequence
data from approximately 4,400 turtles sampled at 105 nesting sites
(Jensen and Dutton, NMFS, unpublished data; M. Jensen, National
Research Council (NRC), pers. comm., 2013). Samples collected at
nesting sites provided the best available data due to plenitude (i.e.,
samples are often collected during nesting site surveys) and relevance,
i.e., the species is somewhat organized around these sites, with
females (and to a lesser extent males) returning to the waters off
their natal beaches to mate (Balazs, 1980; Dizon and Balazs, 1982;
Bowen et al., 1992; Karl et al., 1992). Though mtDNA data do not
reflect male-mediated gene flow, and additional sequencing may provide
increased resolution in some cases (e.g., Dutton et al., 2014b), they
remain the best available scientific data to detect marked genetic
separation (i.e., discreteness) among population segments throughout
the range of the species.
The Status Review Team also considered the significance of the
population segment to the species. Each DPS was determined to be
significant because of its unique ecological setting or because its
loss would result in a significant gap in the range of the species. In
addition, some DPSs differed markedly from others in their genetic
characteristics, likely due to exposure to different selective
pressures and generations of reproductive isolation.
We reviewed, considered, and incorporated as appropriate scientific
and commercial data that were not previously included in the Status
Review Report or proposed rule; however, this additional information
did not change our identification of any DPS. Scientific or commercial
data that become available after the publication of this rule will be
reviewed at a later date as appropriate (e.g., during a 5-year review).
Comment 3: We received several comments regarding the general
process for making our listing determinations. One commenter asked why
some DPSs were proposed to be listed as endangered and others as
threatened. Some commenters stated that DPSs should be delisted or
listed as threatened (rather than endangered) to reward conservation
efforts. Several commenters asked why we did not use the population
viability analyses (PVAs) or critical risk threshold from the Status
Review Report. One commenter stated that the listing determinations
must be based on the best available science, including the information
provided in the Status Review Report and any additional information
available. One commenter inquired about our approach to uncertainty
when making our listing determinations.
Response: Please see the previous section entitled, Listing
Determinations under the ESA, which describes the listing process, the
difference between endangered and threatened species, the sources of
the best available data, and the reasons that we did not apply the
critical risk threshold. Regarding the comment that DPSs should be
delisted or listed as threatened to reward conservation efforts, the
ESA requires us to base our listing determinations solely on the best
available scientific and commercial data, after taking into account
efforts to protect species (16 U.S.C. 1533(b)(1)(A)). We review
conservation efforts, as required under the statute, to determine
whether they will be implemented and effective in ameliorating threats
to the species. While the existence of such efforts can avoid the need
for an ESA listing, that determination is based on whether the best
available data allow us to conclude that those efforts improve the
status of the species, not on whether a party should be ``rewarded''
for their efforts.
We used information from the Status Review Report on the
demographic parameters and section 4(a)(1) factors to make our listing
determinations. The
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Status Review Team used PVAs as one component in the consideration of
population trends (i.e., one of the demographic parameters). They
performed PVAs on nesting sites if adequate data were available;
therefore, the results did not apply to the entire DPS, and PVAs were
not available for all DPSs. The required assumptions of the PVAs (i.e.,
constant environmental and anthropogenic pressures) are not likely to
be met. The PVAs did not incorporate the section 4(a)(1) factors,
including climate change, or the potential loss of ESA protections. For
these reasons, we did not base our listing determinations on the PVAs;
however, we included the PVAs as one measure of trends when considering
the demographic parameters.
Regarding our treatment of uncertainty, it is important to note
that the best available scientific and commercial data are not required
to be free from uncertainty. We identified uncertainties in the
demographic parameters and section 4(a)(1) factors throughout the
proposed rule. Nevertheless, we did not base any listing determination
solely on uncertain demographic parameters or section 4(a)(1) factors.
Comment 4: We received several comments on demographic parameters.
One commenter asked us to define ``low'' total nester abundance.
Several commenters stated that they observe more foraging or in-water
green turtles, now compared with previous years.
Response: Our demographic parameters include the total nester
abundance, as described in the Status Review Report. Total nester
abundance ranges from an estimated 404 to 992 nesting females for the
Mediterranean DPS to an estimated 167,424 nesting females for the North
Atlantic DPS. As a general guide, we considered total nester abundance
to be low if there were fewer than 10,000 nesting females. Total nester
abundance provides one measure of resilience. All else being equal,
small populations are at greater risk of extinction than large
populations primarily because of depensation, deterministic density
effects, environmental variation, genetic processes, demographic
stochasticity, ecological feedback, and catastrophes (McElhany et al.,
2000).
The estimates of total nester abundance and trends were based on
quantitative surveys at nesting beaches; however, qualitative data on
nesting sites were provided for each DPS. To evaluate the demographic
parameters, the Status Review Team did not rely on qualitative
estimates of abundance at foraging habitats or other areas. Such areas
often include many juvenile turtles, which are characterized by lower
survival rates relative to adults (Halley et al., in review) and are
less likely to contribute to population productivity (i.e.,
resilience). Furthermore, observational data are often subject to bias
based on the observer's prior experience. Population declines in many
DPSs occurred decades or centuries ago. Under this shifting baseline,
an observer may conclude that there are ``more'' turtles relative to
their earlier, personal observations of the depleted population (i.e.,
prior to conservation efforts); however, this conclusion likely
underestimates the population's pre-exploitation abundance (Pauly 1995;
Bowen and Avise, 1995; Jackson 1997; Bjorndal et al., 1999; McClenachan
et al., 2006; Kittinger et al., 2013). For these reasons, we conclude
that the quantitative surveys at nesting beaches provide the best
available scientific data to assess abundance and resilience for each
DPS.
Comment 5: Two commenters stated that U.S. sea turtle population
assessments rely too heavily on estimates of nesting females, citing
the Assessment of Sea Turtle Status and Trends (NRC, 2010).
Response: The Status Review Team evaluated the section 4(a)(1)
factors throughout the range of each DPS, including at nesting beaches,
foraging areas, migratory corridors, and developmental habitats. To
evaluate demographic parameters, the Status Review Team used total
nester abundance and nesting trends, which are the best available
scientific data and most relevant to the resilience of a DPS, as
described in the response to Comment 4. Though the NRC report
recommends collecting data at life stages ``in addition to adult
females'' (NRC, 2010), the ESA requires us to base our listing
determinations on the best available scientific and commercial data, a
standard which does not require the collection of new data. As
explained above, we have determined that data on nesting females are
the best available scientific data.
Comment 6: We received many general comments on our analyses of the
section 4(a)(1) factors. Many commenters stated that
Fibropapillomatosis (FP) presents a large, and in some DPSs increasing,
threat; however, two commenters stated that FP does not pose a threat
to green turtles. One commenter requested that we distinguish between
native and non-native predators. One commenter indicated that we did
not give enough weight to unusual mortality events (UMEs), explaining
that it would take only one algal bloom, oil spill, or other event to
kill hundreds or thousands of turtles in a short period of time. One
commenter indicated that we needed to make our oceans safer for turtles
by eliminating longline fishing, banning plastics, and enforcing
harassment and litter laws on beaches. One commenter identified
snorkelers and divers as an additional threat to sea turtles directly
or indirectly via threats to coral or seagrass (Meadows, 2004; Landry
and Taggart, 2010). One commenter provided additional scientific
information in support of our analyses of the section 4(a)(1) factors.
Response: The following response applies to general comments on the
section 4(a)(1) factors for all DPSs; however, please see Comments 7
and 8 for our responses regarding general comments on harvest and
climate change, respectively. We reviewed, considered, and incorporated
as appropriate scientific and commercial data that was not previously
included in the Status Review Report or proposed rule.
The ESA requires us to determine whether any species is endangered
or threatened because of any one or a combination of the section
4(a)(1) factors, including disease or predation (16 U.S.C. 1533
(a)(1)(C)). It does not distinguish between native or non-native
predators; however, we included this information where available. FP is
a disease that causes tumors in sea turtles. In 2015, NMFS hosted the
International Summit on Fibropapillomatosis of Marine Turtles: Global
Status, Trends, and Population Impacts. NMFS (in progress) summarized
the current state of FP knowledge and concluded that FP has population
level impacts because it generally results in reduced survivorship;
however, some turtles recover from FP (Hirama, 2001; Hirama and
Ehrhart, 2007). Therefore, we included FP in our analyses of section
4(a)(1) factors and considered the best available data on the incidence
and expression of the disease for each DPS.
We considered the inadequacy of existing regulatory mechanisms for
each DPS. For some DPSs, this included identification of inadequate
harassment and pollution laws, due to lack of implementation and
enforcement.
We evaluated other natural or manmade factors that affect the DPSs'
continued existence. Plastics and other discarded materials (i.e.,
marine debris) often entangle or are ingested by green turtles (e.g.,
Schuyler et al., 2014) and are a significant source of mortality in
some DPSs. We considered algal
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blooms, oil spills, and cold stunning, which may result in UMEs. The
impact of a UME is often dependent on the demographic factors of the
DPS. For example, the North Atlantic DPS, with its high abundance and
increasing trends, has exhibited resilience during recent UMEs caused
by cold stunning (Seminoff et al., 2015). In response to the public
comment, we considered the potential impacts of snorkelers, which may
damage coral reefs or seagrass beds (Landry and Taggart, 2010), cause
green turtles to surface more frequently (Meadows, 2004), or alter
turtles' foraging success; however, we are not aware of information
demonstrating population-level impacts, which are likely to be small.
In summary, we considered each of the section 4(a)(1) factors for
each DPS, including disease or predation, the inadequacy of existing
regulatory mechanisms, and other natural or manmade factors. The
information provided on FP, predation, harassment, pollution, plastics,
UMEs, and snorkelers does not represent significant new information and
does not change our proposed listing determinations.
Comment 7: We received several comments on the harvest of turtles
and eggs. Several commenters, including Senator Palacios (CNMI) and the
CNMI Department of Lands and Natural Resources, requested that the
Services recognize and allow cultural harvest of green turtles. Some
commenters suggested farming green turtles for such purposes. Some
commenters requested take exemptions similar to those for Alaskan
Natives or Tribes (in regards to threatened salmon). Some commenters
stated that green turtles were once used for food and traditional
ceremonies in Guam, CNMI, and Hawai[revaps]i. Two commenters explained
that Federal regulations prohibiting such take became effective in
1976, when CNMI became a Commonwealth of the United States (Pub. L. 94-
241, 90 Stat. 263 (1976)). One commenter stated that most people in
CNMI have no tolerance for the disturbance and taking of the green
turtle. Several commenters opposed harvest for any purpose, citing
overexploitation as a threat.
Response: The take of endangered species is prohibited under
section 9 of the ESA. Longstanding protective regulations apply the
section 9 prohibitions to threatened sea turtles (50 CFR 17.42(b)(1);
50 CFR 223.205). These regulations remain in effect and are beyond the
scope of this rulemaking. Under the ESA, ``take'' means to harass,
harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect, or
to attempt to engage in any such conduct (16 U.S.C. 1532(19)). The
harvest of green turtles and their eggs is prohibited as ``take'' under
the ESA and its implementing regulations. Specifically, the harvest of
turtles is equivalent to hunting, and the harvest of eggs is
collecting. Farming would require trapping, capturing, collecting, and
eventually killing.
The ESA exempts from prohibition the take and import of endangered
and threatened species for subsistence purposes by Alaskan Natives and
non-native permanent residents of Alaskan native villages (16 U.S.C.
1539(e)); however, those provisions are specific to Alaskan Natives and
permanent residents of Alaskan native villages. They provide no basis
for authorizing take in any other context. The statute contains no
other exceptions for cultural or subsistence take. Modifications to the
statute to recognize additional exemptions are beyond our authority.
With respect to the longstanding regulatory provisions extending
the section 9 prohibitions to threatened species of sea turtles,
modifications to the existing protective regulations are beyond the
scope of this rule. The scope of this rule is limited to the
identification of green turtle DPSs and the determination of their
listing statuses based on the best available scientific and commercial
data. We have not undertaken to review or otherwise modify the
protective regulations, which remain in effect as noted in the proposed
rule.
In addition to the ESA, the Inter-American Convention for the
Protection and Conservation of Sea Turtles (2001) prohibits the
intentional capture, retention, or killing of, and domestic trade in,
sea turtles, their eggs, parts, or products. The United States is a
Contracting Party to, and is therefore bound by, the treaty and
required to apply the prohibitions to all persons subject to U.S.
jurisdiction. The treaty does not identify exceptions for cultural
take. Currently, U.S. obligations under the treaty are not implemented
through separate legislation or regulations, as sea turtles are already
protected under the ESA.
Historically, the harvest of green turtles and their eggs resulted
in overexploitation, one of the major factors cited in the original
listings of green turtles under the ESA (43 FR 32800, July 28, 1978).
Green turtle populations are vulnerable to overexploitation due to slow
growth rates, late sexual maturity, and complex migratory life
histories (Bjorndal et al., 1999). Low levels of harvest may impede
local recovery (Bell et al., 2007), and positive population trends are
quickly reversible (Hays, 2004; Tro[euml]ng and Rankin, 2005; Broderick
et al., 2006; McClenachan et al., 2006). For each DPS, we considered
the impact of legal and/or illegal harvest of turtles and eggs.
Comment 8: We received many comments on climate change. Most
commenters stated that climate change poses a threat to green turtles.
Several commenters did not agree with our evaluation of climate change
and its impact on green turtle DPSs. Some stated that climate change
and its resulting impacts (e.g., increases in temperature, sea level,
ocean acidification, and the frequency and intensity of storm events)
are not likely to occur. One commenter stated that climate change
science and predictions have limitations and uncertainties. One
commenter stated that while sea level rise is likely to result in loss
of nesting habitat at insular nesting beaches, it may result in the
expansion of nesting habitat at continental beaches. Some commenters
stated that climate change is not likely to endanger sea turtle DPSs
within the foreseeable future because turtles will adapt or change
their behavior. One commenter stated that the species may not be able
to adapt to climate change due to its life history, the rapidly
changing shoreline, and ocean pollution. One commenter requested that
the Services maintain ESA protections for all green turtle DPSs due to
the increasing threat of climate change, citing the unprecedented rates
of greenhouse gas emissions, increased global temperatures, accelerated
sea level rise, increased extreme weather events, and the effects of
other threats on green turtles (e.g., fisheries bycatch and ocean
pollution) magnified as a result of climate change. Two commenters
stated that climate change alone, or in synergy with other factors,
places DPSs in danger of extinction (i.e., endangered). One commenter
provided additional scientific information in support of our climate
change analyses.
Response: We have reviewed the best available information on
climate change, including the reports submitted with comments and many
recently published peer-reviewed publications and government reports on
climate change and its impacts on green turtles. While we received
additional information, it is not significantly different from the
information reviewed for the proposed rule and supports our evaluation
of climate change impacts on green turtle DPSs in the Status Review
Report and proposed rule. It does not change our proposed listing
determinations. To address general comments, we provide the following
summary of the best available scientific
[[Page 20063]]
and commercial data on climate change and its impact on green turtles.
The Intergovernmental Panel on Climate Change (IPCC) was
established by the United Nations Environmental Programme and World
Meteorological Organization to assess climate change and its potential
environmental and socio-economic impacts. The Fifth Assessment Report
(IPCC, 2014) summarizes the best available scientific knowledge
relevant to climate change, considering different greenhouse gas
concentration pathways (https://www.ipcc.ch/index.htm). The IPCC
Representative Concentration Pathway 8.5 is based on increasing
radiative forcing through 2100. It is based on current rates of
emissions continuing into the future. We use this pathway because it
requires the least assumptions (i.e., future rate changes) and, in the
absence of data to the contrary, it is prudent to make resource
management decisions based on status quo evidence. Though there is
uncertainty as to the precise magnitude of future effects, there is
very little uncertainty as to the fact that climate change is occurring
and the direction of impacts from climate change. This is consistent
with NMFS' recent coral listing determinations (79 FR 53852, September
10, 2014) and NMFS' recent Guidance for Treatment of Climate Change in
NMFS ESA Decisions (NOAA Assistant Administrator for Fisheries Eileen
Sobeck, Memorandum to NMFS Leadership Council, January 4, 2016; in
revision). As described by the IPCC (2014), under Pathway 8.5:
The global mean surface temperature is likely to increase
2.6 [deg]C to 4.8 [deg]C by 2100;
Ocean acidification is likely to increase 100 to 109
percent by 2100;
Global mean sea level will likely rise 0.45 to 0.82 m by
2100; sea level will very likely rise in at least 95 percent of the
ocean area; approximately 70 percent of coastlines are projected to
experience a sea level rise of within 20 percent of the global mean;
and
There is high confidence that warming, ocean
acidification, and sea level rise will continue to increase for
centuries beyond 2100.
Based on the above information, we do not agree with the commenters
who state that climate change and its resulting impacts are not likely
to occur. The IPCC provides conservative estimates of the effects of
climate change. For example, its estimates of sea level rise represent
the mean sea level rise that is likely to occur; under Pathway 8.5, the
maximum is 0.98 m, and there is a 17 percent risk of exceeding that
maximum (IPCC, 2014). In addition, studies published since the Fifth
Assessment Report identify the potential for higher rates of sea level
rise due to the destabilization of West Antarctic ice sheets (Joughin
et al., 2014; Rignot et al., 2014; Trusel et al., 2015) and volume or
mass loss from other polar ice sheets (Helm et al., 2014; Dutton et
al., 2015). Thus, the best available scientific and commercial data
indicate that climate change is occurring and will continue to occur
within the foreseeable future, likely resulting in increases in
temperature, sea level rise, and ocean acidification.
Regarding the comment on limitations and uncertainties in climate
change science, the IPCC uses qualitative descriptions of likelihood
and confidence. In the Fifth Assessment Report, the term ``high
confidence'' refers to the authors' judgments about the validity of
findings as determined through evaluation of evidence and agreement;
the term ``likely'' refers to a 66 to 100 percent likelihood of an
outcome (IPCC, 2010). In our review of the Fifth Assessment Report, we
focused on and applied outcomes and findings that were ``likely'' to
occur and with ``high confidence'' findings. For example, the IPCC
reports with high confidence that a large fraction of species faces
increased extinction risk due to climate change during and beyond the
21st century, especially as climate change interacts with other
stressors (IPCC, 2014). This conclusion is based on observational
evidence that lower rates of natural climate change caused significant
ecosystem shifts and species extinctions during the past millions of
years, and the current changes are occurring at a faster rate over less
time. The IPCC also reports with high confidence that marine organisms
will face progressively lower oxygen levels and higher rates of ocean
acidification and that coastal systems and low-lying areas are at risk
from sea level rise (IPCC, 2014).
We agree with commenters that climate change and its impacts are a
threat to green turtles. Species with high fecundity and low juvenile
survival, such as sea turtles, are the most vulnerable to climate
change and elevated levels of environmental variability (Cavallo et
al., 2015; Halley et al., in review). Temperature changes and sea level
rise are likely to change ocean currents and the movements of
hatchlings, surface-pelagic juveniles, and adults (Hamann et al., 2007;
Hawkes et al., 2009; Poloczanska et al., 2009; Cavallo et al., 2015).
Though ocean acidification is likely to affect the forage-base of green
turtles, including invertebrates, seagrasses, and algae, it is not
clear how these changes will impact green turtles (Hamann et al., 2007;
Poloczanska et al., 2009). Nesting beaches are likely to be impacted by
climate change. Sea level rise is likely to reduce the availability and
increase the erosion rates of nesting beaches, particularly on low-
lying, narrow coastal and island beaches (Fish et al., 2005; Baker et
al., 2006; Jones et al., 2007; Fuentes et al., 2009; Hawkes et al.,
2009; Anast[aacute]cio et al., 2014; Pike et al., 2015). On undeveloped
and unarmored beaches with no landward infrastructure, a typical beach
profile may maintain its configuration but will be translated landward
and upward (Bruun, 1962); however, along developed coastlines, and
especially in areas where erosion control structures have been
constructed to limit shoreline movement, sea level rise is likely to
cause severe effects on nesting females and their eggs (Hawkes et al.,
2009; Poloczanska et al., 2009). Increased storm frequency and
intensity are likely to result in altered nesting beaches and decreased
egg and hatchling success (Pike and Stiner, 2007; Van Houtan and Bass,
2007; Hawkes et al., 2009; Fuentes et al., 2011a; Dewald and Pike,
2014; Brost et al., 2015). Increasing air and sea surface temperatures
are strongly correlated to sand temperatures (Fuentes et al., 2009;
Santos et al., 2015a), which could lead to embryonic mortality at 35
[deg]C (Ackerman, 1997) and the loss of male hatchlings at 30.3 [deg]C
(Godfrey and Mrosovsky, 2006; Fuentes et al., 2010b; 2011b).
Some commenters stated that sea turtles would respond to climate
change via adaptation or behavioral changes. Adaptation by natural
selection occurs when individuals with one heritable trait survive and
reproduce (passing that trait onto their offspring) at a higher rate
than individuals with other heritable traits. It occurs over many
generations, and one green turtle generation is approximately 30 years
(Seminoff et al., 2015). As climate change progresses (i.e.,
temperatures increase, ocean acidification increases, sea level rises,
and storms increase in frequency and intensity), sea turtles that nest
on low-lying beaches with inhospitable sand temperatures will produce
less viable offspring than previously and as compared to those nesting
at higher elevations and on beaches with sand temperatures conducive to
embryonic development. This adaptation scenario will have a net effect
of reducing the overall abundance of sea turtle populations in the
future (e.g., reduced production at the low-lying beaches and constant
production at the higher
[[Page 20064]]
elevation beaches). The capacity for green turtles to quickly adapt is
questionable because they are long-lived and late maturing, and the
species has previously evolved in a climate that changed at a much
slower rate than projections suggest for the next 100 years (Hamann et
al., 2007; Hawkes et al., 2009; Poloczanska et al., 2009). Slow
evolutionary rates (Avise et al., 1992) and smaller population sizes
(as a result of previous declines and relative to pre-exploitation
populations; McClenachan et al., 2006) may further limit the species'
ability to adapt (Hawkes et al., 2009). Therefore, adaptation by
natural selection for green turtles is likely to be limited and may not
match the rate of climate change impacts within the foreseeable future.
We agree that in response to climate change, green turtles may
alter their behavior; for example, nesting females may use beaches with
higher elevation or cooler sands (Santos et al., 2015). However, the
likelihood of altered behavior is difficult to estimate because green
turtles exhibit high nesting site fidelity at some locations (Carr and
Carr, 1972; Dizon and Balazs, 1982; Mortimer and Portier, 1989;
Marquez, 1990; Bowen et al., 1992) and low nesting site fidelity at
others (Basintal 2002; Abe et al., 2003). Dizon and Balazs (1982)
state, ``It is imperative for the well-being of the population that no
alterations in the habitat be made since once imprinted the green
turtle is unlikely to switch its breeding habitat.'' Santos et al.
(2015a) conclude that no environmental condition may be important
enough to deter a faithful nester. In addition, alternative nesting
sites may not be available. Furthermore, coastal squeeze, where coastal
development prevents the landward migration of beaches, may prevent the
use of higher elevation areas (Fish et al., 2008; Mazaris et al.,
2009), even on continental beaches. Alternative beaches may not provide
the optimal substrate for nesting (Fuentes et al., 2010a). Therefore,
the best available scientific and commercial data indicates that green
turtle nesting behavior alterations are not likely to ameliorate all
effects of climate change on the species.
Our consideration of climate change includes efforts to limit
future emissions and mitigate the impacts of climate change. After the
publication of the proposed rule, 195 nations adopted the landmark
Paris Agreement at the Twenty-First Conference of the Parties to the
United Nations Framework Convention on Climate Change (the 2015 Paris
Climate Conference, or COP 21). The Agreement will be open for
signature for one year beginning on April 22, 2016, and will come into
effect when ratified by 55 nations, representing 55% of global
greenhouse gas emissions. Article 2.1 of the Agreement states that it
``aims to strengthen the global response to the threat of climate
change, in the context of sustainable development and efforts to
eradicate poverty, including by . . . [h]olding the increase in the
global average temperature to well below 2 [deg]C above pre-industrial
levels and to pursue efforts to limit the temperature increase to 1.5
[deg]C above pre-industrial levels. . . .'' (UNFCCC, Dec. 12, 2015,
Article 2.1(a), https://unfccc.int/resource/docs/2015/cop21/eng/l09.pdf
). Contracting parties will design their own reduction targets (their
``intended nationally determined contributions''), which are to become
progressively more ambitious through successive iterations over time.
The parties will be required to submit plans for achieving their
intended reductions and to account for their actual performance through
transparent means. See Articles 3 and 4. Since the Paris Agreement is
not yet in force, sufficient information regarding the plans of the
parties for reducing emissions and the likely impact on global
greenhouse gas emissions over the foreseeable future is not yet
available. At this time, on the current record, we must conclude there
is no basis to examine how these recent efforts may ameliorate the
likely impacts of climate change in the foreseeable future. As time
progresses and more information becomes available on implementation and
effectiveness of the Paris Agreement, we expect that information will
be incorporated into the ongoing assessments of the IPCC, which is
well-recognized to be the source of the best available scientific and
commercial information on climate change trends and impacts. Our future
determinations under the ESA will continue to be informed by the
information available from the IPCC, as well as other available climate
analyses, and thus will take into account new information as
appropriate.
One study assessed possible mitigation measures, which included
shading or sprinkling nests with water to reduce temperatures (Jourdan
and Fuentes, 2015); however, the effectiveness of such strategies to
address climate change impacts has yet to be determined and is likely
to be dependent on conservation resources and site-specific
characteristics.
Therefore, based on the best available scientific and commercial
data, we conclude that the effects of climate change present a threat
to all green turtle DPSs. While this threat alone does not put any DPS
in danger of extinction, climate change together with other threats
places some DPSs in danger of extinction (i.e., endangered) and makes
others likely to become endangered within the foreseeable future (i.e.,
threatened).
Comment 9: Several commenters stated that DPSs proposed as
endangered (i.e., the Central West and Central South Pacific DPSs)
should be listed as threatened due to inadequate data. Several
commenters stated that nesting estimates in the Central West and
Central South Pacific DPSs are based on a limited number of survey
locations. Some commenters, including the Guam Department of
Agriculture, requested a 6-month extension for the publication of the
final rule.
Response: Please see the previous section entitled, Listing
Determinations under the ESA, which describes the listing determination
process and the difference between endangered and threatened species.
The ESA requires us to determine whether any species is endangered or
threatened because of any one or a combination of the section 4(a)(1)
factors (16 U.S.C. 1533(a)(1)) and based solely on the best available
scientific and commercial data (16 U.S.C. 1533(b)(1)(A)); it does not
require quantitative analyses, and it does not require us to collect
new data or perform additional surveys. These requirements apply
equally to endangered and threatened determinations.
Regarding the comment on the number of nesting survey locations,
for each DPS we compiled the best available scientific and commercial
data including peer-reviewed scientific publications, government
reports, and verified unpublished data on green turtle biology and
threats. The Status Review Team and two post-doctoral researchers
evaluated over 600 publications on green turtles for the Status Review
Report, which was peer-reviewed by 15 scientists. To further ensure
that the listing determinations are based on the best available data,
we requested additional information and allowed over 6 months for
response (80 FR 15271, March 23, 2015). We did not receive any new
information on nesting sites in the Central West or Central South
Pacific DPSs. We did not receive any information that changed the
listing determination for any DPS.
Regarding the request for an extension, the ESA provides that if we
find that there is substantial disagreement regarding the sufficiency
or accuracy of the available data relevant to the determination, we may
delay the publication of the final rule
[[Page 20065]]
for 6 months to solicit additional data (16 U.S.C. 1533 (b)(6)(B)(i)).
In this instance, we do not find that there is a substantial
disagreement regarding the sufficiency or accuracy of the available
data on the Central West or Central South DPSs, or for any other DPS.
To the contrary, we find that the best available scientific and
commercial data support our proposed listing determinations, without
the need for additional data. The commenters did not identify
additional information that will become available and would be
fundamental to our determinations. We allowed a 6-month public comment
period on the proposed rule, which exceeded the 60-day minimum as
outlined in our regulations (50 CFR 424.16(c)(2)). Therefore, we find
there is no basis upon which to grant the request to extend the
deadline for publication of the final rule.
Comment 10: The Colombian Ministry of Environment and Sustainable
Development provided information on the National Programme for the
Conservation of Marine and Continental Turtles in Colombia that
includes education, conservation, and outreach plans; in addition,
Colombia works with the Permanent Commission for the South Pacific on
the Southeast Pacific Action Plan (based on the Lima Convention of
1981), which protects sea turtles and their habitats by mitigating
threats through participatory strategies designed using the best
available scientific and socioeconomic information. The Colombian
Ministry of Environment and Sustainable Development also stated that in
areas where utilization of sea turtles is deeply ingrained in the local
culture, such as the La Guajira region of Colombia, changing people's
attitudes about the use of sea turtles can be a long, slow process;
however, these communities play a fundamental role in the conservation
of sea turtles.
Response: We appreciate the comment and the efforts made to
conserve green turtles. We added the information on conservation
efforts in Colombia to the relevant sections of this notice on the
South Atlantic and East Pacific DPSs.
Comment 11: One commenter identified several spelling mistakes,
misused words, and typos.
Response: We corrected the spelling mistakes, misused words, and
typos in the final rule.
Comments on the North Atlantic DPS
Comment 12: We received comments from State agencies including the
Florida Fish and Wildlife Conservation Commission (FWC), the Florida
Department of Environmental Protection (FDEP), the Georgia Department
of Natural Resources Wildlife Resources Division, the North Carolina
Wildlife Resources Commission, and the Virginia Department of Game and
Inland Fisheries (VDGIF). They supported the DPS listings. The FWC and
FDEP emphasized the conservation programs currently in place in
Florida. The VDGIF recommended that more emphasis be placed on nesting
beaches north of Florida, such as in North Carolina, as they may become
more important in the future due to climate change.
Response: Regarding climate change, please see our response to
Comment 8. We appreciate the positive response from the State agencies
and their continued support on listed species conservation. We
considered the best available data on green turtle demographic
parameters, threats, and conservation efforts for this DPS. The
estimate of total nesting abundance includes the nesting sites north of
Florida (Seminoff et al., 2015). Nesting beaches north of the high
density nesting beaches in southeast Florida may become more important
to the DPS in the foreseeable future. By listing the DPS as a
threatened species under the ESA, we protect all nesting green turtles,
including those that nest on beaches in North Carolina.
Comment 13: We received many comments from the public on the
listing determination of the North Atlantic DPS. Several commenters
supported the listing determination. One commenter supported the
listing determinations and provided information on nesting abundance in
Florida and an observed increase in juvenile green turtles on the reefs
off Hutchinson Island, the Central Indian River Lagoon, and the Key
West National Wildlife Refuge. Many commenters stated that the DPS
should be listed as endangered due to the severity of threats. Several
commenters stated that turtles of the Florida breeding population,
originally listed as endangered, would lose protections if listed as
threatened. One commenter referenced the high abundance of green
turtles prior to commercial exploitation and identified the possible
threat of harvest if ESA protections were removed. One commenter stated
that the listing determination did not agree with the critical risk
threshold in the Status Review Report, i.e., that the standard for
extinction was lower than the statutory definition and that the horizon
for foreseeable future was beyond what could reasonably be predicted.
The commenter stated that the DPS is not likely to become endangered
within the foreseeable future, citing population increases, PVAs, and
the critical risk threshold analysis described in the Status Review
Report. This commenter requested the information used to make the
listing determination.
Response: Please see the section entitled, Listing Determinations
under the ESA, which describes the listing process, the difference
between endangered and threatened species, our explanation for using a
foreseeable future of 100 years, and the reasons that we did not apply
the critical risk threshold, which is a higher standard (i.e., requires
a condition worse than the statutory definition of endangered). The
best available scientific and commercial data allow us to make
reasonable projections over that time frame as to the key threats that
are impacting the species as well as the species' biological response
(over three generations). The primary threats leading to listing are
already operating on the species, so we are not relying solely on the
ability to project effects into the future. Please see our response to
Comment 3 for the reasons that we did not base our determination on the
PVAs. The information used to make the listing determination is
provided in the Status Review Report, proposed rule, and final rule;
these documents and the list of references cited in the proposed rule
are available online at https://www.nmfs.noaa.gov/pr/species/turtles/green.htm.
We do not agree with commenters who state that the North Atlantic
DPS is endangered or should not be listed under the ESA. The North
Atlantic DPS is not presently in danger of extinction because of its
high nesting abundance, increasing trends, connectivity, and spatial
diversity, which provide some resilience against the section 4(a)(1)
factors. However, the DPS is likely to become endangered within the
foreseeable future throughout all or a significant portion of its range
due to the following threats: habitat degradation, harvest of turtles
and eggs, disease and predation, bycatch, channel dredging, marine
debris, cold stunning, and climate change. Removing ESA protections
would further increase the likelihood of endangerment. The large
abundance and increasing trend of nesting females are a direct result
of ESA protections and State, local, and foreign protections, which are
influenced by the ESA status. If we did not list the DPS under the ESA,
the important protections, financial resources, and conservation
benefits associated with the ESA would not continue. Further, without
listing under the ESA, it is possible that some State,
[[Page 20066]]
local, and foreign protections would be rescinded.
Regarding the comment on turtles from the Florida breeding
population, the change in status (from endangered to threatened) will
not reduce protections afforded under the ESA. Threatened and
endangered sea turtles receive similar protections under the ESA
because longstanding protective regulations apply the prohibitions of
section 9 of the statute (which automatically apply to endangered
species) to threatened sea turtle species (50 CFR 17.42(b)(1); 50 CFR
223.205). As discussed in the proposed rule and in a prior response,
those regulations are not affected by this listing determination
rulemaking and remain in effect for threatened DPSs, such as the North
Atlantic DPS. One minor change for turtles from the Florida breeding
population is that, under the USFWS and FWC section 6(c)(1) agreement,
any authorized employee or agent of the FWC may, when acting in the
course of official duties, take or issue a conservation permit
authorizing take of a green turtle for purposes consistent with the ESA
and provisions of the section 6(c)(1) agreement.
Comment 14: One commenter stated, ``To the extent that the Services
take the position that they will not delist species unless specifically
petitioned to do so, API [American Petroleum Institute] requests that
the Services treat this letter as a delisting petition.''
Response: The Services do not take the position ``that they will
not delist a species unless specifically petitioned to do so.'' As
discussed in the proposed rule, we initiated a status review of the
entire species to comprehensively identify DPSs and determine their
appropriate listing status, including whether any DPSs no longer
warrant listing. Thus, with or without a petition directed at any
particular DPS, we used the best available scientific and commercial
data (including comments submitted on the proposed rule) to make
appropriate ESA listing determinations for each DPS. Stated
differently, filing of such a petition at this time would not trigger
consideration of new issues that are not already being thoroughly
evaluated as part of the ongoing rulemaking. We considered the
information presented in API's comment letter fully when making our
final listing determinations. It is thus unnecessary by the commenter's
own terms to consider the comment as a petition.
We find that the purported petition fails to constitute a valid
petition for three additional reasons. First, were the Services to
process comments on a proposed rule as petitions seeking to determine
the status of the species already the subject of the proposed rule, it
would create a circular and redundant process. When a petition is
filed, the Services must make a 90-day finding to the maximum extent
practicable, and if that initial finding is positive, it triggers a
status review and ultimately a 12-month determination (50 CFR
424.14(b)(3)). If the relevant status review has already been conducted
and a proposed rule to determine the status of the affected species is
available for comment, there is nothing more that processing a new
petition at that time could accomplish. Second, API's letter can be
read as attempting to petition the Services to delist the North
Atlantic DPS before the rule to list it as such has become a final
agency action. To the extent that was the commenter's intent, such a
preemptive petition is improper as it does not seek an action that can
be presently taken. Finally, we note that our regulations require that
every petition clearly identify itself as such (50 CFR 424.14(a)), a
requirement not clearly met where the document is self-described as a
comment letter filed within the context of an ongoing, docketed
proceeding.
Comment 15: We received many comments on the section 4(a)(1)
factors for the North Atlantic DPS. Though commenters generally agreed
with our identification of threats, several disagreed with our analyses
of these threats. One commenter provided information on the threats of
climate change, fisheries bycatch, pollution, direct harvest, disease,
and the inadequacy of existing regulatory mechanisms, to provide
further support for our determination and the need to continue
protection under the ESA without any weakening of regulations. Several
commenters stated that green turtles are especially sensitive to
habitat destruction at nesting sites as a result of coastal
development, artificial lighting, and beach nourishment projects and in
water as a result of eutrophication, pollution, and harmful algal
blooms. One commenter stated that poaching is a major threat in the
North Atlantic DPS. Several commenters stated that the DPS should be
considered endangered as a result of the high incidence of FP in green
turtles found in Florida and the spread of the disease geographically
(from central and southern Florida to northeast and northwest Florida)
and in incidence. One commenter stated that ``from 1980-2005, 22.2
percent of stranded green sea turtles were afflicted; last year, 28.7
percent of all green sea turtles were afflicted.'' Several commenters
stressed the importance of increasing threats, such as FP, climate
change, marine debris, bycatch, and boat strikes. Several commenters
stated that climate change should be considered a significant threat
for the North Atlantic DPS, and the listing status for Florida green
turtles should remain as endangered based on this threat. One commenter
stated that green turtles are especially sensitive to sea level rise,
because they prefer to nest on narrower, steeper, and eroded beaches.
They stated that the combination of coastal development and sea level
rise could be devastating to the DPS; however, the removal of
structures such as seawalls and buildings might mitigate such effects.
One commenter stated that the long-term effects of the Deepwater
Horizon oil spill (Mississippi Canyon 252) remain to be seen. One
commenter stated that the North Atlantic DPS is not exposed to any
threats that warrant its listing as threatened under the ESA. The
commenter stated that the amount of coastal armoring permits in Florida
has decreased between 2001 and 2005, protection has increased in other
countries, artificial lighting is controlled by local lighting
ordinances, and sea level rise is not considered an imminent threat.
The commenter stated that impacts from armoring are offset by beach
nourishment programs that place sand on eroding beaches, increasing
green turtle nesting habitat.
Response: For our general responses regarding the section 4(a)(1)
factors, please see Comments 6, 7, and 8. We list the North Atlantic
DPS as threatened because of habitat destruction and modification, the
harvest of turtles and eggs, disease and predation, inadequate
regulatory mechanisms, bycatch, channel dredging, marine debris, cold
stunning, and climate change. Based on our review of the best available
scientific and commercial data, the DPS is not presently in danger of
extinction due to a single factor (e.g., FP or climate change) or the
section 4(a)(1) factors cumulatively, when considered in the context of
the demographic parameters (i.e., high abundance, increasing trends,
and spatial diversity), which provide resilience to the DPS at present.
While a species may be listed based on any one of the five factors, in
many instances, more than one factor may cause the species to meet the
definition of a threatened or endangered species. Alternatively, while
each individual factor may not cause the species to meet the definition
of threatened or endangered, the cumulative effect of multiple factors
may cause the species to be listed.
[[Page 20067]]
Regarding the comments on FP, the disease results in internal and/
or external tumors that may grow large enough to hamper swimming,
vision, feeding, and potential escape from predators. We acknowledge
the increasing distribution and incidence of FP, particularly in
Florida. The threat is likely to increase, given the continuing, and
possibly increasing, human impacts to, and eutrophication of, coastal
marine ecosystems that may promote this disease (NMFS, in progress).
However, FP is not always lethal, and photographic evidence from
Florida shows that the tumors on some green turtles go into regression
(Hirama, 2001; Hirama and Ehrhart, 2007; NMFS, in progress).
Regarding the comments on habitat destruction and protection, we
considered habitat modification and destruction impacts to the extent
they are known and based on the best available data, including
qualitative information (i.e., the ESA does not require quantitative
data, which in this case are limited). There has been an increase in
coastal armoring structures permitted by the FDEP over the last 5 years
particularly on Singer Island in Palm Beach County, a high density
nesting beach. In many areas, residential and commercial properties, as
well as breakwaters, jetties, seawalls, and other erosion control
structures designed to protect public and private property, continue to
be permitted and built. Such coastal development places increasing
pressure on beach systems and negatively affects nesting habitat. While
mitigation measures (e.g., lighting ordinances and construction
setbacks) provide important protections, they do not remove the threats
or reduce them to insignificant levels. Beach nourishment programs can
provide nesting habitat where it had been previously destroyed or
offset impacts from other coastal measures; however, they also alter
sand characteristics and nearshore foraging habitat. At best, such
programs help to reduce impacts but do not provide new benefits to the
turtles.
Regarding the comment on poaching, as explained in more detail in
the Status Review Report, the harvest of turtles and eggs remains legal
in several countries within the range of the North Atlantic DPS.
Turtles are legally and illegally harvested in foraging areas. Eggs are
harvested at many nesting beaches.
Regarding the comment on the Deepwater Horizon oil spill, we agree
that the long-term effects remain to be seen because the spill was
particularly harmful to post-hatchlings and surface-pelagic juveniles
(Witherington et al., 2012) by temporarily destroying their Sargassum
habitat (Powers et al., 2013) and resulting in the ingestion of
contaminants.
Numerous other natural and manmade factors affect the continued
existence of this DPS. Regulatory mechanisms contained within
international instruments are inconsistent and likely to be
insufficient. While some regulatory mechanisms should address direct
and incidental take for this DPS, it is unclear to what extent such
measures are implemented and effective. The species is conservation-
dependent and positive population trends are likely to be curtailed or
reversed without alternate mechanisms in place to continue existing
conservation efforts and protections afforded under the ESA. We
conclude that the North Atlantic DPS is threatened by the above section
4(a)(1) factors.
Comment 16: Several commenters supported an endangered listing
determination for the North Atlantic DPS, citing the criteria in the
Recovery Plan for the U.S. Population of Atlantic Green Turtle (NMFS
and USFWS, 1991); however, one commenter cited the criteria in the
Recovery Plan as a basis for delisting the North Atlantic DPS.
Response: The ESA requires us to determine whether a species is
threatened or endangered because of the 4(a)(1) factors, based solely
on the best available data after considering conservation efforts.
Section 4(f)(1) requires us to develop and implement recovery plans for
the conservation and survival of endangered and threatened species
unless the Secretary finds that such a plan will not promote the
conservation of the species (16 U.S.C. 1533(f)(1)). The information
included in such plans informs but does not dictate listing
determinations. See Friends of Blackwater v. Salazar, 691 F.3d 428
(D.C. Cir. 2012).
The 1991 Recovery Plan was written prior to the identification of
the DPS and only applies to the U.S. population of the Atlantic green
turtle (whereas the North Atlantic DPS includes foreign populations and
does not include turtles nesting in the U.S. Virgin Islands). The 1991
Recovery Plan identifies recovery criteria (NMFS and USFWS, 1991);
however, these criteria apply to delisting, not to changes in listing
status (i.e., from endangered to threatened). Some, but not all, of the
recovery criteria for this population have been met. Nesting in Florida
averages over 14,000 nests annually for the last 6 years (https://myfwc.com/media/2988445/greenturtlenestingdata10-14.pdf; FWC, pers.
comm., 2015); however, less than 25 percent of all available nesting
beaches and less than 50 percent of nesting activity are in public
ownership. Similarly, the species' status in nearshore and inshore
waters and reduction in stage class mortality have not been evaluated.
To make our listing determination, we evaluated the section 4(a)(1)
factors in the context of the demographic parameters for this DPS
(i.e., we did not directly evaluate whether the U.S. Atlantic
population has met the recovery criteria). Based on the best available
scientific and commercial data, we conclude that the North Atlantic DPS
is not presently in danger of extinction but is likely to become
endangered within the foreseeable future throughout all or a
significant portion of its range (i.e., threatened under the ESA)
because of habitat destruction and modification, the harvest of turtles
and eggs, disease and predation, inadequate regulatory mechanisms,
bycatch, channel dredging, marine debris, cold stunning, and climate
change.
Comments on the Mediterranean DPS
Comment 17: One commenter requested a discussion of the threat from
wars in Syria and Libya.
Response: Green turtles nest on Syrian beaches and forage in the
waters off Libya; there is a migratory corridor between these nesting
and foraging hotspots (Stokes et al., 2015). Stokes et al. (2015)
tracked 34 turtles from Cyprus, Turkey, Israel, and Syria; over half of
the turtles migrated to the Gulf of Sirte and the Gulf of Bomba in
Libya. The Gulf of Bomba and nearby Ain Gazala have been identified as
potential marine protected areas (Badalamenti et al., 2011); the
authors also recommend the Gulf of Sirte for consideration as a marine
protected area (Stokes et al., 2015). As summarized by Stokes et al.
(2015), much of Libya's coastline is not degraded and is relatively
unpopulated; total fisheries catch is an order of magnitude lower than
that of neighboring Egypt and Tunisia. Marine exploitation has
increased, however, and conservation efforts have been delayed by
political unrest (Badalamenti et al., 2011). Geopolitical instability
further complicates conservation efforts (Katsanevakis et al., 2015).
In an interview on the Stokes et al. (2015) findings, B.J. Godley
indicated that political instability can have positive (by slowing
exploitation and development and creating de-facto wildlife refuges)
and negative (by delaying the identification of marine protected areas)
effects on conservation (Gertz, 2015; https://www.takepart.com/
[[Page 20068]]
article/2015/02/14/endangered-green-turtle-mediterranean-libya).
Because of the possibility of positive and negative effects, and
without specific information on the likely impacts on green turtles, we
cannot determine how such conflicts are likely to impact the
Mediterranean DPS. In any case, we proposed to list this DPS as an
endangered species, and such information would not change our listing
determination.
Comments on the South Atlantic DPS
Comment 18: One commenter suggested combining the North and South
Atlantic DPSs; however, another commenter stated that the separation of
the North and South Atlantic DPSs is supported by recent studies
(Putman and Naro-Maciel, 2013; Naro-Maciel et al., 2014b). The United
Kingdom (UK) Department for Environment, Food, and Rural Affairs
supported the threatened status of the South Atlantic DPS but provided
the following information about the Ascension Island nesting site: The
best available data on the Ascension Island population is provided by
Weber et al. (2014); the average size of nesting females declined from
a mean carapace length of 116.0 cm in 1973-1974 to 111.5 cm in 2012
(Weber et al., 2014); and predation by feral dogs and especially cats,
which were eradicated in 2004, is no longer a significant source of
mortality for hatchlings. One commenter stated that fewer than 10 green
turtles nest on monitored index beaches annually in Dominica and that
these numbers are lower than a generation ago due to poaching of
turtles and eggs. One commenter suggested renaming the South Atlantic
DPS because its boundary occurs north of the equator.
Response: We appreciate the comments from the UK Department for
Environment, Food, and Rural Affairs and their efforts to conserve
green turtles. We reviewed and evaluated the information on turtles at
Ascension Island and Dominica and determined that it does not change
the proposed listing determination for the South Atlantic DPS.
Regarding the suggestion to combine the North and South Atlantic
DPSs, the best available scientific and commercial data support the
identification of the North and South Atlantic DPSs. Genetic, tagging,
tracking, and modeling studies support the discreteness of the North
and South Atlantic DPSs (Baudouin et al., 2015; Seminoff et al., 2015).
In addition to the information provided in the Status Review Report,
nuclear (microsatellite) and mtDNA analyses reveal a strong, ancient
barrier to dispersal between northern and southern Atlantic green
turtles (Naro-Maciel et al., 2014b), as divided by our definition of
the North and South Atlantic DPSs (i.e., the equator lies south of and
does not coincide with the genetic barrier). The breeding seasons of
the DPSs are temporally distinct, potentially limiting mixing during
reproductive migrations (Naro-Maciel et al., 2014b). Ocean circulation
models (i.e., a potential proxy of juvenile turtles, though see Putman
and Mansfield, 2015) indicate that the majority of particles arising
from the northern or southern Atlantic are likely to remain within the
northern or southern Atlantic, respectively (Putman and Naro-Maciel,
2013).
Regarding the suggestion to rename the South Atlantic DPS, the vast
majority of the range of the South Atlantic DPS lies in the South
Atlantic Ocean. We find that the nomenclature appropriately
distinguishes this DPS from the North Atlantic DPS and is consistent
with the terminology used to name all DPSs.
Comments on the Southwest Indian DPS
Comment 19: The UK Department for Environment, Food, and Rural
Affairs provided additional information on the British Indian Ocean
Territory (BIOT), which occurs within the range of the Southwest Indian
DPS, stating that: (1) Available information on nesting turtles within
the BIOT includes ``only fairly crude assessments of population size
and seasonality,'' while satellite data indicate movement throughout
the Indian Ocean; and (2) it is highly unlikely that, given its
isolation, the BIOT nesting population would be supplemented by
immigrants from elsewhere. The Department for Environment, Food, and
Rural Affairs recommends waiting for additional census data before
considering whether to downgrade the conservation status of these sea
turtles. The Embassy of the Republic of Mauritius agreed with the
proposed listing.
Response: We appreciate the comments from the UK Department for
Environment, Food, and Rural Affairs and the Embassy of the Republic of
Mauritius and their efforts to conserve green turtles. The status for
this DPS has not been changed; we listed the species as threatened in
1976 and now list the Southwest Indian DPS as threatened under the ESA.
The ESA requires us to base our listing determinations on the best
scientific and commercial data available, after conducting a review of
the status of the species and considering conservation efforts (16
U.S.C. 1533(b)(1)(A)). Because we have sufficient data to determine the
listing status of this DPS and did not receive additional data during
the 6-month comment period on the proposed rule, there is no basis to
delay our determination while additional census data are collected.
The Status Review Team considered the BIOT, which includes the
seven atolls of the Chagos Archipelago, where sea turtle nesting is
common (Mortimer and Day, 1999). The estimated total nester abundance
of 1,800 nesting females (Seminoff et al., 2015) was based on the
Mortimer and Day (1999) estimate of 400 to 800 females nesting annually
at the Chagos Archipelago, which we consider to be the best available
scientific and commercial data. Mortimer and Day (1999) state that
green turtles and their habitat are well protected by the BIOT
administration; however, monitoring and conservation efforts are not
sufficient to adequately reduce all threats.
Comments on the East Indian-West Pacific DPS
Comment 20: The Forestry Bureau of the Taipei Economic and Cultural
Representative Office agrees with the listing under the ESA.
Response: We appreciate the comment from the Forestry Bureau of the
Taipei Economic and Cultural Representative Office and their efforts to
conserve green turtles.
Comments on the Central West Pacific DPS
Comment 21: We received several comments on the section 4(a)(1)
factors for the Central West Pacific DPS. One commenter stated that
human populations in Guam, CNMI, and the Federated States of Micronesia
are decreasing. One commenter stated that development is not a threat.
Several commenters stated that poaching of nesting turtles is a problem
in the Central West Pacific DPS; one commenter stated that allowing
cultural take would resolve this issue, though another disagreed. One
commenter stated that bycatch is a threat in CNMI. One commenter stated
that 4,000 years ago, sea level was 1.8 m higher than it is today in
CNMI (Amesbury, 2007), and one commenter stated that sea level rise is
not a threat.
Response: Regarding cultural take, please see our response to
Comment 7. The harvest of sea turtles or their eggs is illegal under
the ESA and its regulations, the Inter-American Convention for the
Protection and Conservation of Sea Turtles, and local laws in CNMI
(CNMI Public Law 02-51 1981) and Guam (Endangered Species Act of Guam,
1979). Despite these
[[Page 20069]]
protections, poaching occurs in CNMI (CNMI-DLNR 2006-2009, 2011, 2013;
Summers et al., in progress) and Guam (https://www.noaanews.noaa.gov/stories2008/20080729_seaturtle.html; https://dawr.guam.gov/wildlife/sea-turtles/). The best available data indicate that past poaching and
harvest have led to the low nesting abundance of the Central West
Pacific DPS, whereas the protection of turtles and their habitat has
led to recent increases in foraging turtles (Martin et al., 2016).
Based on the demographic parameters of the DPS, including its low
nesting abundance, we conclude that it has little resilience against
threats, especially those that remove turtles from the population, such
as poaching and the harvest of turtles and eggs. Bycatch in subsistence
and small-scale commercial fishing operations is also a concern.
Regarding the comments on development and human population size,
threats to nesting beaches include construction (and associated
lighting), military activities, public use of beaches, and beach
driving (NMFS and USFWS, 1998; CNMI Coastal Resources Management
Office, 2011; Palacios, 2012; Wusstig, 2012). Coastal erosion has been
identified as a high risk in the CNMI due to the existence of
concentrated human population centers near erosion-prone zones; it is
likely to be exacerbated by sea level rise (CNMI Coastal Resources
Management Office, 2011). In Guam, turtle densities are highest where
there are healthy coral reefs and seagrass beds, low human densities,
and marine protected areas (Martin et al., 2016). Though human
population density is correlated with turtle density, our major concern
is with coastal development and the resulting degradation of nesting
beaches and foraging areas. Human populations in Guam, CNMI, and the
Federated States of Micronesia have increased since the listing of the
green turtle in 1976. Since 2000, human populations have increased in
Guam and decreased in CNMI and the Federated States of Micronesia
(World Bank, 2015; https://www.census.gov/newsroom/releases/archives/2010_census/cb11-cn179.html).
Regarding the comments on sea level rise, sea level changes have
occurred throughout the history of the species (e.g., Grant et al.,
2012), but rarely at the rate likely to occur as a result of
anthropogenic climate change (IPCC, 2014). Furthermore, sea level rise
did not occur in the presence of other threats, such as unprecedented
ocean acidification (Honisch et al., 2012), overexploitation, fisheries
bycatch, and habitat degradation due to coastal development, pollution,
and other anthropogenic causes. Additionally, the effects of sea level
rise are likely to be exacerbated by the increased frequency and
intensity of storm events (IPCC, 2014). As described by Summers et al.
(in progress), water inundation and accompanying erosion from tropical
storms, typhoons, and storm water drainage impacted 7.5 percent of
inventoried Saipan nests (N = 160) between 2007 and 2013. We expect
increases in the rate of such impacts within the foreseeable future.
We conclude that the Central West Pacific DPS is endangered by a
combination of section 4(a)(1) factors.
Comment 22: We received several comments on the listing
determination for the Central West Pacific DPS. Senator Palacios (CNMI)
stated that though NMFS supports a contractor to perform research on
green turtles in CNMI, resources for data collection are insufficient.
Some commenters stated that data are limited and lacking quantitative
analyses and that they often observe in-water sea turtles (though
another commenter never sees sea turtles). The Guam Department of
Agriculture suggests listing the DPS as threatened due to data
limitations (including limited survey effort) and naturally low
abundances; the Guam Department of Agriculture also requests
information on whether nations within the range of the Central West
Pacific DPS were contacted, how the endangered listing would solidify
protection of the species, and whether the recovery plan will be
updated. The CNMI Department of Lands and Natural Resources provided
comments on the many in-water turtles around Tinian, suggested the
possibility of nesting in the northern islands, and disagreed with the
endangered listing status because it might increase the extinction risk
and hinder recovery (though another commenter did not agree with this
assessment and did not understand how the harvest of turtles for
cultural reasons would result in conservation) and further reduce the
possibility of cultural harvest.
Response: Please see our responses to Comment 3 (regarding turtle
observations), Comment 7 (regarding cultural harvest), and Comment 9
(regarding perceived data limitations).
Regarding the comments on data, to make our proposed listing
determination, we evaluated the best available scientific and
commercial data, which included information from several surveys (NMFS
and USFWS, 1998; Bureau of Marine Resources, 2005; Barr, 2006; Palau
Bureau of Marine Resources, 2008; Trevor, 2009; Maison et al., 2010; H.
Suganuma, Everlasting Nature of Asia, pers. comm., 2012; J. Cruce,
Ocean Society, pers. comm., 2013). For our final listing determination,
we also reviewed additional surveys, which did not provide significant
new information or change our listing determination (Kolinski et al.,
2001; Kolinski et al., 2004; Kolinski et al., 2005; Kolinski et al.,
2006; Jones and Van Houtan, 2014; Martin et al., 2016; Summers et al.,
in progress). We conclude that data on nesting turtles (rather than
foraging turtles, as discussed in comments and at public hearings)
provide the best available scientific and commercial data for assessing
resilience.
Regarding the suggestion to list the DPS as threatened, based on
the best available scientific and commercial data, we find the species
to be in danger of extinction throughout all or a portion of its range
as a result of the present and threatened modification of its habitat,
poaching of turtles and eggs, disease and predation, fisheries bycatch,
marine debris, and climate change. Regulatory mechanisms and
conservation efforts are inadequate to remove the impact of these
threats, and the DPS has little resilience to such threats due to its
low nesting abundance and limited nesting site diversity.
Regarding the comment on naturally low abundance and the
possibility of additional nesting sites, the low nesting abundance is
likely a result of previous and continued harvest of turtles and eggs
(Groombridge and Luxmoore, 1989). We are not aware of any additional
nesting data for the northern islands and did not receive any
information on additional nesting sites during the 6-month public
comment period.
Regarding the information requests and concerns over the endangered
status, upon publication of the proposed rule, we notified other
nations and requested their comments. We intend to update the recovery
plans in the future after the DPS listings are finalized; however, we
do not have an anticipated completion date for such plans at this time.
The updated listings will allow for more specialized protection of each
DPS. The endangered status of the Central West Pacific DPS will
highlight it as a conservation priority among green turtle DPSs. We do
not agree that the endangered status will increase the extinction risk
and hinder recovery. Past ESA protections have led to improving trends
in the Central West Pacific (Martin et al., 2016), and we expect such
improvements to continue.
[[Page 20070]]
Comments on the Central South Pacific DPS
Comment 23: We received several comments on the listing
determination for the Central South Pacific DPS. The Governor of
American Samoa stated that the endangered status would impact
fisheries, fishing grounds, and the economy without providing the DPS
with additional protection (i.e., relative to the current threatened
status). In addition to these concerns, the Department of Marine and
Wildlife Resources of American Samoa stated that the Status Review
Report and proposed rule do not provide rigorous scientific assessment
of threats of the Central South Pacific DPS because a PVA was not
performed, there was limited survey effort in the Central South
Pacific, the estimate of nesting female abundance was not weighted to
potential available habitats, and the recorded decline was based on one
nesting site in French Polynesia. Others provided similar comments and
requested further study of the DPS. One commenter stated that the
nesting estimate should be weighted for survey effort. One commenter
questioned whether turtles from American Samoa and French Polynesia
should be part of the same DPS.
Response: Please see our responses to Comment 3 and Comment 9
regarding the process and data used to make listing determinations and
the difference between threatened and endangered species. The ESA does
not allow consideration of economic issues for listing determinations.
Regarding the comment on the impacts of the change in status, the
new listings will allow for more specialized protection of each DPS.
The endangered status of the Central South Pacific DPS will highlight
it as a conservation priority among green turtle DPSs. This may
encourage conservation actions in other nations. The status change for
turtles in American Samoa is unlikely to result in additional
implementation burdens because of longstanding regulations protecting
threatened species in a manner similar to endangered species (50 CFR
17.42(b)(1); 50 CFR 223.205).
Regarding the comments on surveys and assessments, for the Central
South Pacific DPS, the best available scientific and commercial data
are summarized in the Status Review Report and include, but are not
limited to, unpublished nesting and in-water surveys data in American
Samoa collected by NMFS and the Department of Marine and Wildlife
Resources of American Samoa. In the proposed rule, we requested all
data on nesting locations, abundance, trends, and threats, to ensure
the identification and application of the best available data; however,
we did not receive additional information for this DPS. We conclude
that the data identified in the Status Review Report and applied in the
proposed and final rule represent the best available scientific and
commercial data and are sufficient to make a listing determination on
the Central South Pacific DPS.
Regarding the comments on weighting data, to determine the status
of the DPS, we analyzed the best available data on the section 4(a)(1)
factors in the context of demographic parameters, including nesting
abundance and trends. Nesting abundance was not weighted to potential
available habitat or survey efforts because such data are not
available. Instead, the Status Review Team provides two estimates of
total abundance of nesting females. The first estimate of approximately
2,900 nesting females was based on 37 quantified nesting sites
(Seminoff et al., 2015). The Status Review Team provided a second
estimate (approximately 3,600 nesting females) based on an additional
700 nesting females at 22 unquantified nesting sites, for which only
qualitative information was available (Seminoff et al., 2015). Such
levels of abundance do not provide resilience against threats that
remove green turtles from the population, such as harvest and
stochastic events, which increase the extinction risk for small
populations (Schaffer, 1981; Wright and Hubbell, 1983; Lande et al.,
2003). There appears to be a declining trend at the largest nesting
beach in French Polynesia, which is considerably larger in abundance
than all other known nesting beaches (Seminoff et al., 2015). In
addition, previous reports on nesting abundance in American Samoa
indicate significant declines relative to historical levels (Tuato'o-
Bartley et al., 1993; Craig et al., 2004). Though we considered
increasing nesting trends at smaller nesting beaches (Seminoff et al.,
2015), we conclude that such trends provide little resilience to the
DPS, which is endangered by habitat destruction and modification,
overexploitation, predation, inadequate regulatory mechanisms,
fisheries bycatch, marine debris, and climate change.
Regarding the comments on the composition of the DPS, turtles
nesting in American Samoa and French Polynesia commonly exhibit
haplotypes from Clade III, which are uncommon in other DPSs; satellite
tagging data indicate that these turtles share foraging habitat in
Fiji, French Polynesia, and American Samoa (Seminoff et al., 2015;
NMFS, unpublished data, 2015). Therefore, we include turtles nesting
and foraging in American Samoa and French Polynesia in the Central
South Pacific DPS.
Comment 24: One commenter reported reef damage as a result of the
recent tsunami in American Samoa and requested a discussion of the
impacts.
Response: Tsunamis can destroy or modify nesting beach and marine
habitats for green turtles. They deposit marine debris, which can
entangle or be ingested by foraging turtles, on reefs. After the
tsunami of September 29, 2009, over 8,000 pounds of debris were removed
from 74 km of coral reef habitat in American Samoa (https://coralreef.noaa.gov/aboutcrcp/news/featuredstories/dec09/asdebris/welcome.html). The frequency and intensity of storms are likely to
increase as a result of climate change (IPCC, 2014) and are considered
an increasing threat to the DPS. We considered these threats in our
analysis of the Central South Pacific DPS, which we list as endangered.
Comments on the Central North Pacific DPS
Comment 25: We received many comments on the listing determination
for the Central North Pacific DPS. Most commenters agreed with our
listing determination, stating that the DPS should be listed under the
ESA because it still faces numerous threats. One commenter stated that
the Services cannot rely on politics or personal observation but must
list the DPS as threatened (and cannot delist it) to comply with ESA,
which requires us to base our listing determinations on the best
available scientific and commercial data. Some commenters stated that
the DPS should be listed as endangered because of the numerous threats
and small nesting population abundance. Several commenters stated that
the DPS should be delisted because of increasing nesting trends,
observations of increasing in-water sea turtle abundance, or to reward
conservation efforts and encourage similar efforts throughout the
Pacific Islands. Several commenters questioned why the PVA and critical
risk threshold were not used to determine the status of the DPS. Two
commenters requested that NMFS perform in-water surveys to assess
abundance prior to making a determination. The State of Hawai[revaps]i
Department of Land and Natural Resources (Hawai[revaps]i DLNR)
expressed support for the conservation efforts of the Services in
partnership with Hawai[revaps]i DLNR, nonprofit organizations, and
[[Page 20071]]
communities, and stated that their Marine Wildlife Program, funded by
NMFS' Species Recovery Grants to States, has distributed over 200,000
barbless circle hooks to the fishing community.
Response: Please see our responses to Comment 3 (regarding the
listing determination process, rewarding conservation efforts, PVAs,
and critical risk thresholds), Comment 4 (regarding turtle
observations), and Comment 9 (regarding perceived data limitations and
requests for additional surveys).
We considered the increasing nesting trend, along with the small
nesting population size and limited spatial structure, during our
evaluation of the demographic factors. We concluded that these
demographic parameters do not demonstrate adequate resilience against
the threats of habitat loss and modification, disease and predation,
inadequate regulatory mechanisms, bycatch, marine debris, boating
activities, climate change, and limited nesting site diversity (i.e.,
96 percent of nesting occurs at one low-lying atoll). For these
reasons, we must list the DPS under the ESA. We do not list the DPS as
endangered because of the positive nesting trend, conservation efforts,
and the success of ESA protections in reducing the impact of some
threats (especially the harvest of turtles and eggs). We list the DPS
as threatened because it is likely to become endangered within the
foreseeable future throughout all or a significant portion of its range
because of the section 4(a)(1) factors, listed above. We made this
determination solely on the basis of the best available scientific and
commercial data (identified in the proposed rule and Status Review
Report) and after taking into account the conservation efforts of the
State of Hawai[revaps]i, which include a variety of effective outreach
and education programs, including the distribution of barbless circle
hooks to reduce hook and line bycatch of turtles.
Comment 26: We received many comments on the section 4(a)(1)
factors for the Central North Pacific DPS. Many commenters identified
threats to the Central North Pacific DPS, including entanglement in and
ingestion of marine debris, accidental take in fisheries, FP, climate
change, coastal development and beach use in the main Hawaiian Islands
(MHI), and harvest of turtles and eggs. One commenter identified an
increase in nesting turtles at Turtle Bay on Oahu but stated that nests
are destroyed by high surf, beach driving, and beach usage (including
using a nest as a fire pit) and that turtles are threatened by
poaching, harassment, pollution, and bycatch. One commenter requested a
discussion of the impacts on the DPS caused by pollution around
Johnston Atoll, vessel groundings in the Northwestern Hawaiian Islands
(NWHI), natural disasters, and random variation and stochasticities.
One commenter requested a discussion of how impacts to individuals
affect the DPS (e.g., how the loss of Whale-Skate Island impacted the
DPS). One commenter stated that there is little that can be done to
protect known nesting beaches from the public, unless all development
activities come to a halt and are reversed. One commenter described an
increase in turtles at the Honokohau Harbor since poaching ended about
a decade ago. One commenter stated that hatchlings at Moomomi have no
significant predators. Several commenters stated that FP is not a
threat to the DPS. One commenter stated that Hawai[revaps]i-based
longline fisheries are not a threat to green turtles of any DPS and
that the new listing should not result in the reinitiation of ESA
section 7 consultations. Hawai[revaps]i DLNR identified several threats
to nesting habitat including, in the NWHI, the inundation of nests due
to sea level rise and in the MHI, coastal development, vehicular and
pedestrian traffic, beach pollution and modification, and erosion. They
also identified fishing and FP as threats. Regarding inadequate
regulatory mechanisms, Hawai[revaps]i DLNR stated a need to increase
coordination and data sharing; they stated their intention to compare
existing State regulations to Federal regulations to identify needs or
gaps and to work with NOAA fisheries to develop a State management
plan. Hawai[revaps]i DLNR provided information on laws regulating the
use of gill nets that have reduced bycatch by requiring inspection
every 2 hours and removal after 4 hours; lay nets (a type of gill net)
must be registered and tagged, and usage is restricted to one at a
time, only during daylight hours, and in depths of less than 25 feet
(for non-commercial users).
Response: Please see our responses to Comments 6 and 8 for general
information on the section 4(a)(1) factors and the impacts of climate
change. We appreciate the State of Hawai[revaps]i DLNR's comments and
continued efforts to conserve green turtles. As indicated by the State
of Hawai[revaps]i DLNR and other commenters, the Central North Pacific
DPS is threatened by the following 4(a)(1) factors, described in detail
in the Status Review Report and proposed rule: Present and threatened
habitat loss and degradation, disease and predation, inadequate
regulatory mechanisms, fisheries bycatch, marine debris, vessel
activities, limited spatial diversity, and climate change. We do not
have adequate data on poaching to assess the impact of this threat on
the DPS.
Regarding the comment on the destruction or modification of habitat
at Johnston Atoll, previous military activities, including nuclear
testing and chemical weapons incineration, polluted the beaches and
surrounding marine ecosystem (https://www.fws.gov/refuges/profiles/index.cfm?id=12515). Balazs (1985) described the potential impacts,
which include petroleum contamination that adversely affects turtles by
external fouling, ingestion, and interference with olfactory perception
and food supply (Coston-Clements and Hoss, 1983). Underwater explosions
of previously unexploded ordnances destroy turtle foraging habitats
(Balazs, 1985). Radioactive particles were spread over a portion of
Johnston Atoll and nearshore waters and potentially concentrated in
algae eaten by turtles (Balazs, 1985). Additional discharges include
heavy metals, nerve gas, chemical weapons, herbicides, organophosphorus
compounds, and the unknown contents of discarded 55 gallon drums, which
have the potential to directly impact turtles and contaminate the
turtles' forage base (Balazs, 1985).
Regarding the comment on destruction or modification of habitat by
vessel groundings, such incidents damage foraging habitat and reef-
associated organisms (i.e., green turtles' prey base) and release
contaminants (e.g., fuel, hazardous substances, etc.), which threaten
foraging habitat and prey (Keller et al., 2009). Such groundings are
possible wherever ships navigate through shallow waters (i.e.,
nearshore areas throughout the Hawaiian Archipelago). Thirteen reported
vessel groundings have occurred in the NWHI in the last 60 years
(Keller et al., 2009); recent groundings in the MHI include the 2005 M/
V Cape Flattery and 2009 USS Port Royal incidents. It is impossible to
predict the number or severity of future vessel groundings; however,
given the data on previous groundings, it is reasonable to expect
additional groundings near green turtle foraging habitat, which occurs
throughout the Hawaiian Archipelago. Like past events, these groundings
are expected to modify foraging habitat and reduce the amount of
available prey in the area.
Regarding the comment on loss of habitat at Whale-Skate Island, the
disappearance of Whale-Skate Island at French Frigate Shoals (FFS) was
due to
[[Page 20072]]
erosion from severe winter storms in 1998 and 1999 (Antonelis et al.,
2006; Lowry et al., 2011). We do not know how the disappearance of
Whale-Skate Island impacted the population because regular surveys had
not been performed on that island. Turtles may have nested at
neighboring islets of FFS; however, some may not have nested or may
have nested in suboptimal habitats. Survey data indicate that the
disappearance of Whale-Skate Island did not result in unusual increases
in nesting at East Island in 1998, 1999, or 2000 relative to prior
years (Humburg and Balazs, 2014). Furthermore, radio telemetry of four
nesting females and four females at Trig and Whale-Skate Islands
demonstrated that the turtles remained near these islands and did not
travel the 9 km to East Island within a nesting season; over multiple
years, only 33 percent of males and 24 percent of females strayed from
Trig and Whale-Skate Islands (Dizon and Balazs, 1982). The authors
concluded that once imprinted on a nesting beach, a green turtle is
unlikely to switch its breeding habitat (Dizon and Balazs, 1982). Dizon
and Balazs (1982) also emphasized the importance of maintaining
foraging habitats and nesting beaches as free from disturbing
influences as possible. Coastal development may result in the loss or
modification of nesting and basking beaches and the nearshore habitats
necessary for the reproductive success of the DPS.
Regarding the comment that little can be done to protect nesting
beaches without halting or reversing all development, our listing
determination is based on whether the species meets the definition of
threatened or endangered, not whether activities could be performed.
Nevertheless, we note that less drastic measures (such as minimizing
impacts of artificial lighting, construction, vehicular and pedestrian
traffic, and pollution on beaches during nesting seasons) are effective
for protecting nesting beaches.
Regarding the comments on predation, introduced species, such as
mongoose, rats, dogs, feral pigs, and cats, prey on eggs and hatchlings
at some nesting beaches in the MHI. Although hatchlings at Moomomi may
have no significant land predators, they are likely to encounter
predators at sea, including sea birds, sharks, and other large fish.
Regarding the comments on FP, we agree with the commenters who
identified FP as a threat to the DPS. In a study of 3,732 green turtle
strandings in Hawai[revaps]i between 1982 and 2003, FP was the most
common cause of stranding (28 percent) and had a specific mortality
rate of 88 percent (Chaloupka et al., 2008).
Regarding the comments on bycatch and the inadequacy of existing
regulatory mechanisms, after FP, fishing line and gillnet entanglement
are the leading cause of stranding and mortality of green turtles in
Hawai[revaps]i (Work et al., 2015). The State of Hawai[revaps]i has
enacted important laws for gill and lay net fisheries. Requiring
inspection of nets every 2 hours reduces, but does not eliminate,
bycatch risk; entanglement and drowning still occur and are likely
underreported (NMFS, 2012; Francke, 2013). As stated in the proposed
rule, measures employed by U.S. longline fisheries have reduced green
turtle interactions to negligible levels; however, reinitiation of
consultation is still required if a new species is listed and may be
affected by a Federally permitted action (50 CFR 402.16(d)).
Regarding the comment on natural disasters, since 1950, more than
50 hurricanes, tropical storms, and tropical depressions have affected
Hawai[revaps]i. We expect climate change to increase the frequency and
intensity of such events (IPCC, 2014). Storm events during the nesting
season are likely to disrupt green turtle nesting activity and
hatchling production by flooding or exposing nests and altering thermal
conditions (Van Houtan and Bass, 2007), resulting in reduced cohort
abundance. These events can also degrade turtle nesting habitat by
reducing or eliminating sandy beaches and creating barriers to adult
and hatchling movements. A single event is unlikely to result in large-
scale losses over multiple nesting seasons; however, the increased
frequency of such events combined with the effects of sea level rise
increase the likelihood of this scenario (Baker et al., 2006; Keller et
al., 2009; Reynolds et al., 2012).
Regarding the comment on stochasticities, irregular, random, and
stochastic events, such as those described above, increase the
extinction risk of small populations (Schaffer, 1981; Wright and
Hubbell, 1983; Lande et al., 2003). Stochastic perturbations (such as
demographic, environmental, and genetic stochasticities and natural
catastrophes) may result in extinction even in an environment that, on
average, is favorable for growth and persistence (Schaffer, 1981).
Therefore, we are especially concerned about the effects of such
threats on the Central North Pacific DPS.
Comment 27: We received many comments regarding the impact of
climate change on the Central North Pacific DPS. One commenter did not
think that climate change would affect nesting at FFS because the
turtles would find alternative nesting sites and because nesting across
the season and years provides resilience against storm events. One
commenter asked how coastal development and climate change together
would affect the DPS. Hawai[revaps]i DLNR requested additional
information regarding the projected timeframe when FFS might be
inundated and the nesting sites unavailable.
Response: Please see our responses to Comments 8 (regarding climate
change) and 24 (responses to nesting habitat loss). The following
information on climate change is specific to the Central North Pacific
DPS.
Baker et al. (2006) estimated that the islets of FFS would lose 15
to 65 percent of area under the median sea level rise scenario (0.48 m)
and 26 to 99 percent of area under the maximum sea level rise scenario
(0.88 m) by 2100. Sea level rise is expected to continue after 2100,
and virtually all land at FFS would be submerged at a sea level rise of
2 m (Baker et al., 2006). East Island, where 50 percent of nesting
occurs at FFS (Balazs et al., 2015), would persist the longest;
however, it is not clear that displaced nesters from other areas of FFS
(i.e., the other 50 percent of nesting) would begin nesting at East
Island. Dizon and Balazs (1982) conclude that once imprinted on a
nesting beach, a green turtle is unlikely to switch its breeding
habitat.
Using a simulation model, Tiwari et al. (2010) estimated carrying
capacity at East Island under current conditions and based on
predictions of sea level rise by 2100. With 30 percent loss of nesting
habitat and a 20 percent increase in mortality (to simulate the effects
of sea level rise and crowding), carrying capacity would be reached at
60,000 to 100,000 nests (Tiwari et al., 2010). The model considered all
available area on the island suitable for nesting (Tiwari et al.,
2010); however, Balazs (1980) reports that very few turtles have nested
in 5 of 17 available areas at East Island, despite apparently suitable
habitat. Therefore, while there appears to be adequate suitable habitat
at East Island, it is uncertain how many turtles would use this habitat
for nesting if their current nesting habitat were lost.
Reynolds et al. (2012) examined sea level rise scenarios of 0.0 to
2.0 m, focusing on mean high water, which is lower than the spring tide
estimates used by Baker et al. (2006) and Tiwari et al. (2010). At FFS,
they projected 12 percent land loss at 1.0 m sea level rise and 32
percent land loss at 2.0 m sea level rise, which would result in the
complete submergence of five of the nine islets (Reynolds et al.,
2012).
[[Page 20073]]
Reynolds et al. (2012) concluded that the decreases in nesting areas at
FFS are likely to limit nesting habitat for the green turtles if
philopatry (i.e., natal beach fidelity) prevents their dispersal. They
also predicted that along the coastline, groundwater levels and turtle
nesting density will likely change as a result of sea level rise and
that these changes, along with increasing temperatures, would
negatively impact green turtle nesting (Reynolds et al., 2012). They
identified the need for additional climate change adaptation strategies
and planning for marine wildlife dependent on the terrestrial breeding
habitats of FFS and Pearl and Hermes Atoll, which are likely to be
inundated before 2100 (Reynolds et al., 2012).
It must be noted that these studies used a passive, inundation or
``bathtub'' model, which is conservative and does not consider storm
surges or the projected increases in storm intensity and frequency
(Hawkes et al., 2009). In addition, the flooding scenarios do not
consider erosive recession of the shoreline causing land loss, long-
shore drift redistribution of sediments (resulting in both gains and
losses of land area), net permanent loss of sand volume offshore, and
onshore sand deposition by overwash during high wave activity (Baker et
al., 2006).
These considerations appear to be important in Hawai[revaps]i,
where historical shoreline changes (i.e., coastal erosion) are one to
two orders of magnitude greater than sea level rise (Romine et al.,
2013). In addition, erosion rates vary among the Hawaiian Islands as a
result of sea level rise, sediment availability, anthropogenic changes,
littoral processes, wave conditions, and coastal and nearshore
geomorphology (Romine et al., 2013). At 9 of 10 sites in the MHI, the
shorelines are projected to retreat 1 to 24 m by 2050 and 4 to 60 m by
2100 (Anderson et al., 2015). Sea level rise is likely to lead to
doubling of the shoreline recession by 2050 (and 2.5 times by 2100) as
compared to extrapolations based on historical erosion (Anderson et
al., 2015). In addition, changes in storminess, wave climate, sediment
availability, and climate related modifications in reef geomorphology
will enhance erosion and inundation of low-lying coastal areas
(Anderson et al., 2015).
The MHI may also be exposed to ``coastal squeeze,'' i.e., as sea
level rises, the landward migration of nesting beaches (and available
nesting habitat) is inhibited due to coastal development and beachfront
barriers (Fish et al., 2005; Fish et al., 2008). Therefore, as one
commenter suggests, habitat modification due to coastal development is
likely to be exacerbated by sea level rise.
In addition to sea level rise, we considered the effects of
increased temperatures (including nest failure and skewed sex ratios),
ocean acidification, and the impact of sea level rise on the movement
of hatchlings, oceanic juveniles, and adults. Hawkes et al. (2014)
conclude that breeding ecology may be fundamentally affected by climate
change and that altered thermal regimes may have the most dramatic and
insidious effects on sea turtles. This is especially a concern in
Hawai`i, where from 1990 to 2014, the sea surface temperature warmed an
average of 0.034 [deg]C annually (roughly three times the observed
global average over this period), a change that is likely to result in
the cessation of basking, an adaptive trait exhibited by turtles of the
Central North Pacific DPS, by 2100 (Van Houtan et al., 2015).
Comment 28: Two commenters requested exemptions to existing take
prohibitions. Their comments suggested that the Services should make
specific findings for each of the threatened DPSs that protective
regulations are necessary and advisable. The State of Hawai`i DLNR
recommended that the Services partner with DLNR and communities to
develop appropriate exemptions to take prohibitions under section 4(d)
of the ESA to allow for more flexible, responsive, and enhanced
management.
Response: As noted in the proposed rule and explained further in
response to Comment 7, longstanding protective regulations apply the
prohibitions of Section 9 (including the ``take'' prohibitions) to
threatened sea turtles, with limited exceptions, and continue to remain
in effect (50 CFR 17.42(b), 223.205, 223.206, and 223.207).
Modifications to such regulations are beyond the scope of this rule,
which finalizes the listing determinations for green turtle DPSs. The
Services may extend the prohibitions of section 9 through protective
regulations that apply generally to a group of threatened species and
are not required to make species-specific determinations as new species
are listed. Sweet Home Chapter of Communities for a Great Oregon v.
Babbitt, 1 F.3d 1 (D.C. Cir. 1993), modified on other grounds on reh'g,
17 F.3d 1463 (D.C. Cir. 1994), rev'd, 515 U.S. 687 (1995). While we
noted the existence of the existing regulations in the proposed rule to
apprise the public of the full regulatory landscape for green turtles,
we did not undertake a review, extension or modification of those
rules, which are entirely separate. This is consistent with the
approach we took for the listing determinations of nine DPSs of
loggerhead sea turtles (76 FR 58868, September 22, 2011).
Comment 29: We received several comments on the recovery (or lack
thereof) of the Central North Pacific DPS. Several commenters stated
that the DPS was recovered; however, one commenter stated that the DPS
has not recovered because it has not met the recovery criteria.
Response: Please see our response to Comment 16. Because the
commenters raised the issue of whether the species had met its recovery
criteria, we provide the following information.
Prior to the identification and proposed listing of the Central
North Pacific DPS, the Services published the Recovery Plan for U.S.
Pacific Populations of the Green Turtle (i.e., the Recovery Plan; NMFS
and USFWS, 1998). The Hawaiian population was included in the Recovery
Plan. One of the recovery criteria has been met: We have identified all
regional stocks to source beaches. The other recovery criteria have not
been met. The DPS does not average 5,000 females nesting annually.
Although the nesting population at East Island has increased over the
past four decades, 25 years of monitoring data are not available for
other nesting beaches. There are numerous threats at key foraging
areas, where population trend data are not available. First priority
tasks that have not been implemented include: Determination of
distribution and abundance of post-hatchlings; assessment and
prevention of degradation of reefs by boating and diving activities;
and prevention of degradation of reefs by pollution, coastal erosion,
siltation, and blasting. There is no management plan to maintain
sustained populations of turtles in the absence of ESA protections, and
there are no international agreements to reduce bycatch (and bycatch
mortality) in foreign longline fisheries.
Comment 30: We received several comments on the carrying capacity
of the Central North Pacific DPS. Several commenters stated that the
DPS is overpopulated or has reached carrying capacity (K), citing
Chaloupka and Balazs (2007) or similar publications and disagreeing
with Kittinger et al. (2013).
Response: Balazs et al. (2015) summarized all existing data and
knowledge on the demographic variables of Hawaiian green turtles. After
reviewing all data, from 1973 to 2012, they concluded that the Hawaiian
green turtle is not at carrying capacity (Balazs et al., 2015).
Specifically, they
[[Page 20074]]
found that the population growth rates from 1973 to 2003 (Chaloupka et
al., 2008), 1973 to 2004 (Chaloupka and Balazs, 2007), and 1973 to 2012
``are statistically indistinguishable, indicating that the last 10
years have not demonstrated any slowing of population growth or
negative density dependence as some predicted (e.g., Chaloupka and
Balazs, 2007)'' (Balazs et al., 2015). The authors concluded that the
population is ``still growing at a robust rate and underscore
historical analyses (e.g., Kittinger et al., 2013; Van Houtan and
Kittinger, 2014) that suggest the population was significantly more
abundant historically'' (Balazs et al., 2015). Because the Balazs et
al. (2015) paper reviews all current and historical demographic data,
we consider it the best available scientific data. We provide the
following information to further explain this complex topic and resolve
any perceived disagreement regarding available data.
There have been numerous studies on carrying capacity in the
Hawaiian green turtle population, focusing on foraging, nesting site,
and overall carrying capacity (e.g., Balazs and Chaloupka, 2004a;
2004b; 2006; Chaloupka and Balazs, 2007; Snover et al., 2008; Tiwari et
al., 2010; Wabnitz et al., 2010). Bjorndal et al. (2000) were the first
to evaluate compensatory responses resulting from density-dependent
effects for a green turtle population (i.e., sea turtles foraging in a
Bahamian bay of approximately 20 km\2\). They found three lines of
evidence to support a density-dependent effect: Significant inverse
correlation between population density and mean annual growth rate;
correlations between condition index and mean annual growth rates
(positive) and population density (negative); and the population
abundance fluctuated around carrying capacity at levels likely to
experience density-dependent effects (i.e., K of approximately 100
turtles; Bjorndal et al., 2000). Balazs and Chaloupka (2004a) applied
this approach to five foraging areas in Hawai`i: Midway Atoll; Kane'ohe
Bay, O'ahu; Pala'au, Moloka'i; and Kiholo Bay and Punalu'u Bay,
Hawai`i. They found significant, long-term declines in size-specific
growth rates at Pala'au, Kiholo Bay, and Punalu'u Bay, which may
reflect limited food availability or nutritional quality (Balazs and
Chaloupka, 2004a). Balazs and Chaloupka (2004a) did not state that
carrying capacity had been reached at any location; instead, they
interpreted these data to mean that carrying capacity for Kiholo and
Punalu'u ``might'' have been reached. The authors concluded that
density-dependent effects are not well understood and warrant further
investigation (Balazs and Chaloupka, 2004a). Wabnitz et al. (2010) used
an ecosystem model to confirm that the green turtle aggregation has
reached carrying capacity at Kaloko-Honok[omacr]hau National Historical
Park. Based on these studies, we conclude that foraging carrying
capacity has likely been reached at this one location on the Big Island
of Hawai`i, which may be ecologically representative of green turtle
habitats spanning 100 km on the west coast of that island (Balazs et
al., 2015). This does not, however, mean that green turtles have
reached carrying capacity in their foraging habitat throughout the
Hawaiian Archipelago. Numerous publications identify current or
historically important foraging areas on: Kaua'i (Princeville,
northwestern coastal areas of Na Pali, and southern coastal areas from
Kukuiula to Makahuena Point); O'ahu (Kawela Bay, Kailua and Kaneohe
Bays, northwestern coastal areas from Mokuleia to Kawailoa, Maunalua
Bay, West Beach, and Sandy Beach); Moloka'i (southern coastal areas
from Kamalo to Halena and Pala'au); Lana'i (northern and northeastern
coastal areas bordering Kalohi and Auau Channels, Keomuku, Kuahua, and
Polihua Beach); Maui (Hana District and Paia, Kahului Bay, Honokowai,
Maliko Bay, and Olowalu); Hawai`i (Kau and North Kohala Districts, and
Kapoho); and the NWHI (Necker Island, FFS, Lisianski Island, Pearl and
Hermes Reef, Laysan Island, Midway Atoll, and Kure Atoll) (Balazs,
1980; Balazs, 1987; Arthur and Balazs, 2008). Furthermore, green
turtles not only forage on native seagrass and algal species but also
thrive on nonnative species (Arthur and Balazs, 2008; Russell and
Balazs, 2009; McDermid et al., 2015). Finally, if foraging carrying
capacity were reached, we would expect nutritional constraints to lead
to reduced nesting frequency due to density-dependent effects resulting
from competition for limited food resources (Bjorndal et al., 2000).
However, the 3 to 4 year female remigration interval has remained
constant since 1973 (Balazs and Chaloupka, 2004b; 2006; Balazs et al.,
2015), indicating that females do not spend additional time foraging
before returning to nest. For these reasons, we conclude that the DPS
has not reached foraging carrying capacity.
One study has also considered nesting carrying capacity. Tiwari et
al. (2010) used a simulation model to estimate carrying capacity on the
nesting beach of East Island, FFS. They found that East Island is well
below carrying capacity and is capable of supporting a larger nesting
population (Tiwari et al., 2010). Therefore, we conclude that the DPS
has not reached nesting carrying capacity.
Other studies considered overall carrying capacity (Balazs and
Chaloupka, 2004a; 2006; Chaloupka and Balazs, 2007; Snover et al.,
2008). Three publications on modeling cited the long-term increase in
the abundance of nesting females at East Island and a constant level of
new recruits as possible evidence of nearing carrying capacity (Balazs
and Chaloupka, 2004a; 2006; Chaloupka and Balazs, 2007); however, these
studies were not conclusive and did not claim that the population was
at carrying capacity (Balazs and Chaloupka, 2004a; 2006; Chaloupka and
Balazs, 2007; Snover et al., 2008). There were also several issues with
these analyses. For example, Chaloupka and Balazs (2007) indicated the
data were uninformative for K and that K was estimated with significant
uncertainty. Furthermore, their model did not indicate that the
population was near K because the plot of nester abundance showed an
exponentially growing population (Snover et al., 2008).
Finally, since the original consideration of carrying capacity in
2004, the abundance of nesting females at East Island has continued to
increase from an estimated average of 338 nesting females (2000-2003)
to an estimated average of 464 nesting females (2009-2012; Humburg and
Balazs, 2014). Had carrying capacity been reached in 2004, we would
have expected nesting abundance and population growth rates to level
off or decrease by now.
Kittinger et al. (2013) analyzed data from middens (i.e., domestic
waste sites) and observational data from historical sources, including
interviews with community elders who described the harvest of nesting
turtles at Kaua'i beaches prior to 1960. It is unlikely that the
community elders would have confused nesting and basking turtles, as
suggested by some commenters. The Hawaiian Gazette (July 19, 1912)
cited Judge Kapoikai watching ``baby turtles scuttle down the beach''
in Maui; hatchlings are not likely to be confused with other life
stages. These examples are indicative of nesting in the MHI prior to
ESA protections. Van Houtan and Kittinger (2014) analyzed nearly three
decades (1948 to 1974) of data on commercial landings data from a green
turtle fishery in the MHI. These data indicate that the small-scale
fishery and local market demand were key factors in the decline of
Hawaiian green turtles, which were already significantly
[[Page 20075]]
depleted by prior exploitation (Van Houtan and Kittinger, 2014).
In summary, we conclude that historically the DPS was significantly
more abundant and has not yet reached foraging, nesting, or overall
carrying capacity.
Comment 31: One commenter indicated that the determination on the
Central North Pacific DPS is inconsistent with the 2012 International
Union for Conservation of Nature (IUCN) Red List of Threatened
SpeciesTM (i.e., Red List) assessment, which categorized the
Hawaiian subpopulation of green turtles as ``least concern.''
Response: Species classifications under the ESA and Red List are
not equivalent; data standards, criteria used to evaluate species, and
treatment of uncertainty are not the same, nor is the legal effect.
Unlike the ESA, the Red List is not a statute and is not a legally
binding or regulatory instrument. It does not include legally binding
requirements, prohibitions, or guidance for the protection of
threatened (i.e., critically endangered, endangered, or vulnerable)
taxa (IUCN, 2012). Rather, it provides taxonomic, conservation status,
and distribution information on species. The Red List is based on a
system of categories and criteria designed to determine the relative
risk of extinction (https://www.iucnredlist.org/about/introduction),
classifying species in one of nine categories, as determined via
quantitative criteria, including population size reductions, range
reductions, small population size, and quantitative extinction risk.
The ESA requires the Services to list species if they are endangered or
threatened by any or a combination of the section 4(a)(1) factors (16
U.S.C. 1533(a)(1)), as based on the best available scientific and
commercial data, which may include a qualitative threats analysis.
Thus, the ESA and Red List are inherently different. To the extent
that the information described within Red List is relevant to our
determination, we do not agree that the DPS ``is approaching full
recovery to pre-exploitation levels'' (IUCN, 2012). The IUCN cites the
modeling study by Chaloupka and Balazs (2007), which has been refuted
by more recent and complete data (Balazs et al., 2015), which we
consider to be the best available scientific data. In response to
Comment 30, we identify the problems with the Chaloupka and Balazs
(2007) study. Their pre-exploitation estimate of 320,000 turtles is
likely an underestimate because it is based solely on small-scale
fishery landings from 1944 to 1973; however, broad-scale commercial
exploitation of the population began in the early 19th century and may
have been quite extensive (Amerson, 1971; Van Houtan and Kittinger
2014). In addition, traditional exploitation occurred for centuries
prior (Chaloupka and Balazs, 2007; Kittinger et al., 2013). Therefore,
it is likely that the DPS was significantly more abundant historically
(Kittinger et al., 2013; Van Houtan and Kittinger, 2014; Balazs et al.,
2015).
We agree with the IUCN's identification of the following threats to
the DPS: Restricted location (i.e., utilization of one rookery);
erosion and habitat loss throughout the NWHI; climate impacts; illegal
harvesting; FP, which causes debilitating tumors of the skin and
internal organs; coastal development and urbanization, fishing line
ingestion or entanglement from recreational shore based fisheries,
entanglement in gill nets, vessel collisions, miscellaneous hazards
such as spear wounds; and climate change (increasing sea surface
temperature and increasing intensity and frequency of severe storms)
(https://www.iucnredlist.org/details/16285718/0). Because of these
factors, the Central North Pacific DPS is likely to become endangered
within the foreseeable future throughout all or a significant portion
of its range.
Comment 32: One commenter stated that the recapture of three
Central North Pacific turtles in Japan, the Marshall Islands, and the
Philippines out of 7,360 total recaptures signifies adequate gene flow
to homogenize populations (i.e., the populations are not genetically
discrete).
Response: We have not detected any shared mtDNA haplotypes between
the Central North Pacific DPS and the Central West Pacific or the East
Indian-West Pacific DPSs. If gene flow had been adequate to homogenize
the DPSs, we would expect shared haplotypes and consistent haplotypic
frequencies in these DPSs. Furthermore, in 50 years of extensive
nesting surveys in the Hawaiian Archipelago, no recaptures or
haplotypes from the Central West or East Indian-West Pacific DPSs have
been encountered.
Comment 33: Several commenters stated that green turtles were
consuming too much limu (i.e., Hawaiian algae).
Response: The extent of turtle consumption of limu is not relevant
to our listing determination because it does not represent a threat to
turtles; however, we believe a fuller understanding of this issue is
important to promoting conservation of green turtles and dispelling
misinformation. We provide the following information because reductions
in limu are likely caused by other species. Nonnative algae pose one of
the greatest threats to native algae by competing for space. Additional
threats to limu include: storm water discharges, pollution,
development, and overharvesting by humans (Wianecki, 2010; Lapointe and
Bedford, 2011). At Kaloko-Honok[omacr]hau National Historical Park,
Wabnitz et al. (2010) determined that sea urchins have the greatest
impact (45 percent) on algal resources, followed by herbivorous fish
(14.4 percent), with green turtles only accounting for 0.2 percent of
total herbivory consumption.
Green turtles are selective foragers that target specific species
(Balazs, 1980). Only two of these species (U. fasciata and C. edule,
which are both common; Abbott, 1984) are favored by humans. In fact,
green turtles may provide benefits to limu by consuming nonnative algae
(Arthur and Balazs, 2008; Russel and Balazs, 2009).
Comment 34: One commenter stated that the increase in green turtles
is linked to an increase in sharks and shark attacks on humans. One
commenter stated that green turtles damage coral in Kaneohe Bay,
Hawai`i.
Response: As we noted in our response to Comment 33, our listing
determination must be based solely on a review of the status of the
species; extraneous considerations are not relevant. Nevertheless, the
best available scientific and commercial data do not link the
increasing abundance of green turtles to increasing shark abundance or
attacks (https://www.honolulumagazine.com/Honolulu-Magazine/February-2016/Why-Are-There-So-Many-Shark-Attacks-in-Hawaii/). Furthermore,
green turtles likely improve the overall health of coral reefs in
Kaneohe Bay by controlling the overgrowth of nonnative algae (Pandolfi
et al., 2005; Russel and Balazs, 2009).
Comments on the East Pacific DPS
Comment 35: The Instituto del Mar del Per[uacute] suggested
breaking the East Pacific DPS into two DPSs and listing the southeast
Pacific as endangered for the following reasons: (1) While there is an
increasing trend at Michoac[aacute]n nesting beaches (Delgado-Trejo and
Alvarado-Diaz, 2012), there have not been substantial increases at
Gal[aacute]pagos nesting beaches in the past 15 years (IAC, 2011, 2012,
2013, 2014); (2) Peru lists the species as endangered (D.S. No. 004-
2014-MINAGRI) and prohibits hunting, capture, possession, and
transportation of specimens, products and/or byproducts; in addition,
Per[uacute] is
[[Page 20076]]
a signatory of several international agreements for the conservation of
sea turtles that developed their work plan and resolutions on the basis
of the IUCN Red List category of endangered (Seminoff, 2004); (3)
southeast Pacific turtles face numerous threats including bycatch,
harvest, illegal trade of turtle meat, oil, and derivatives (Alfaro
Shigueto et al., 2010, 2011; de Paz et al, 2002); and (4) increasing
threats include coastal development, artisanal fisheries, and
aquaculture, which occur close to foraging areas and cause habitat
degradation.
Response: We appreciate the Instituto del Mar del Per[uacute]'s
comments and efforts to conserve sea turtles. For differences between
the ESA and IUCN Red List, please see Comment 31. Turtles of the East
Pacific DPS share phenotypic traits, including size (i.e., small) and
color (i.e., black), that are not found in other Pacific DPSs. They
share haplotypes from Clade VIII and do not exhibit haplotypes from
other clades (Seminoff et al., 2015). There is significant genetic
structure within the DPS (i.e., four regional stocks; Seminoff et al.,
2015); however, the divergence among stocks is much less than the
divergence among DPSs, as indicated by nuclear (Roden et al., 2013) and
mtDNA (Seminoff et al., 2015). Furthermore, the most significant
differences do not occur between turtles nesting at Mexican and
Gal[aacute]pagos beaches, but rather between the turtles nesting at the
Revillagigedos Islands (Mexico) and all others (Seminoff et al., 2015).
Genetically, females nesting at Michoac[aacute]n (Mexico) are more
similar to females nesting in the Gal[aacute]pagos Islands than to
those nesting at the Revillagigedos Islands (Seminoff et al., 2015).
Satellite tracking indicates that turtles nesting in Michoac[aacute]n,
Costa Rica, and the Gal[aacute]pagos Islands converge at foraging areas
in Central America (Hart et al., 2015), and at least one
Michoac[aacute]n turtle was recovered as far south as Colombia
(Alvarado-D[iacute]az and Figueroa, 1990). Based on the best available
scientific and commercial data which indicates connectivity within the
DPS, we conclude that the East Pacific DPS is discrete and significant
and should not be further divided.
Conservation efforts have led to increasing abundance at numerous
nesting sites throughout the range of the DPS. In addition to the
increasing trends at Michoac[aacute]n, we found stable to slightly
increasing nesting trends at Gal[aacute]pagos nesting beaches, which
host the second largest nesting aggregation of the DPS (Seminoff et
al., 2015). We do not find that the East Pacific DPS is presently in
danger of extinction; however, it is likely to become endangered within
the foreseeable future throughout all or a significant portion of its
range due to habitat loss and degradation, overexploitation, disease
and predation, inadequate regulatory mechanisms, fisheries bycatch,
marine debris, boat strikes, red tide poisoning, and climate change.
Therefore, we finalize our proposal to list the East Pacific DPS as
threatened under the ESA.
Summary of Changes From the Proposed Rule
We make the following changes from the proposed rule:
We change the boundaries of the ranges for the North and
South Atlantic DPSs because all islands of the U.S. Virgin Islands (not
just St. Croix) should be included in the range of the South Atlantic
DPS, as indicated by genetic and other data presented in the Status
Review Report.
In the proposed rule, we erroneously listed the California
and Oregon border as 41[deg] N.; we remove the reference to the
California and Oregon border, however, 41[deg] N. remains the northern
boundary for the range of the East Pacific DPS.
We corrected typographical errors in the listing tables
and throughout the preamble, including correcting the citation to the
existing critical habitat designation for the North Atlantic DPS, at 50
CFR 226.208.
We include information on the National Colombia Programme
for Conservation of Marine and Continental Turtles in our consideration
of conservation efforts for the South Atlantic and East Pacific DPSs.
We indicate that the BIOT, located within the range of the
Southwest Indian DPS, protects green turtles and their habitat;
however, conservation efforts are not sufficient to adequately reduce
all threats (Mortimer and Day, 1999).
We reviewed, and incorporate as appropriate, scientific
data from references that were not included in the Status Review Report
and proposed rule. We include the following references, which together
with previously cited references, represent the best available
scientific and commercial data; however, these new references do not
present significant new findings that change any of our proposed
listing determinations: Benaka et al., 2013; Adimey et al., 2014;
Bourjea et al., 2014; Brei et al., 2014; Carreras et al., 2014; Casale
and Mariani, 2014; Dutton et al., 2014a; Dutton et al., 2014b;
Gonz[aacute]lez Carman et al., 2014; Hays et al., 2014; Keller et al.,
2014; Lagueux et al., 2014; Naro-Maciel et al., 2014a; Naro-Maciel et
al., 2014b; Ng et al., 2014; Read et al., 2014; Schuyler et al., 2014;
Senko et al., 2014; Shamblin et al., 2014; Van Houtan et al., 2014;
Balazs et al., 2015; Baudouin et al., 2015; Brost et al., 2015; Cavallo
et al., 2015; Esteban et al., 2015; Guilder et al., 2015; Hart et al.,
2015; Jourdan and Fuentes, 2015; Katsanevakis et al., 2015; Mancini et
al., 2015; Rhodes, 2015; Ruiz-Izaguirre et al., 2015; Santidri[aacute]n
Tomillo et al., 2015; Santos et al., 2015b; Stokes et al., 2015;
Stringell et al., 2015; Ullmann and Stachowitsch, 2015; Van Houtan et
al., 2015; Wedemeyer-Strombel et al., 2015; Wilcox et al., 2015; Work
et al., 2015; Yang et al., 2015; Martin et al., 2016; Halley et al., in
review; Summers et al., in progress; NMFS, in progress.
Identification of DPSs
The comments that we received on the proposed rule did not change
our conclusions regarding the identification of DPSs. We reviewed
relevant and recently available scientific data that were not included
in the Status Review Report and proposed rule (Carreras et al., 2014;
Casale and Mariani, 2014; Dutton et al., 2014a; Dutton et al., 2014b;
Hays et al., 2014; Naro-Maciel et al., 2014a; Naro-Maciel et al.,
2014b; Ng et al., 2014; Read et al., 2014; Shamblin et al., 2014;
Baudouin et al., 2015; Esteban et al., 2015; Hart et al., 2015; Mancini
et al., 2015; Stokes et al., 2015; Yang et al., 2015). The
identification of fine-scale genetic structure or mixing at foraging
areas for some DPSs does not change our findings for the proposed DPSs.
Based on the best available scientific and commercial data, we conclude
that the DPSs identified in the proposed rule are discrete and
significant. Therefore, we incorporate herein all information on the
identification of DPSs in the Status Review Report and proposed rule,
with the following exception as discussed above: We changed the
boundary between the North and South Atlantic DPSs so that all islands
of the U.S. Virgin Islands (not just St. Croix) would be included in
the South Atlantic DPS.
In summary, we applied our joint DPS policy (61 FR 4722, February
7, 1996) to identify 11 discrete and significant DPSs: North Atlantic,
Mediterranean, South Atlantic, Southwest Indian, North Indian, East
Indian-West Pacific, Central West Pacific, Southwest Pacific, Central
South Pacific, Central North Pacific, and East Pacific (Figure 1).
[[Page 20077]]
[GRAPHIC] [TIFF OMITTED] TR06AP16.000
North Atlantic DPS
The comments that we received on the North Atlantic DPS and
additional information that became available since the publication of
the proposed rule did not change our conclusions regarding its listing
determination. Therefore, we incorporate herein all information on the
North Atlantic DPS provided in the Status Review Report and proposed
rule, with the following exceptions: The boundary of the DPS (which was
changed to exclude all islands of the U.S. Virgin Islands), and the
application of the critical risk threshold from the Status Review
Report (which, as we explained in the proposed rule, does not directly
correlate with the ESA definitions of ``endangered'' and
``threatened''). The following represents a brief summary of that
information.
The range of the DPS extends from the boundary of South and Central
America, north along the coast to include Panama, Costa Rica,
Nicaragua, Honduras, Belize, Mexico, and the United States. It extends
due east across the Atlantic Ocean at 48[deg] N. and follows the coast
south to include the northern portion of the Islamic Republic of
Mauritania (Mauritania) on the African continent to 19[deg] N. It
extends west at 19[deg] N. to the Caribbean basin to 65.1[deg] W., then
due south to 14[deg] N., 65.1[deg] W., then due west to 14[deg] N.,
77[deg] W., and due south to 7.5[deg] N., 77[deg] W., the boundary of
South and Central America. It includes Puerto Rico, the Bahamas, Cuba,
Turks and Caicos Islands, Republic of Haiti, Dominican Republic, Cayman
Islands, and Jamaica. The North Atlantic DPS includes the Florida
breeding population, which was originally listed as endangered under
the ESA (43 FR 32800, July 28, 1978).
Demographic Parameters for the North Atlantic DPS
The DPS exhibits high nesting abundance, with an estimated total
nester abundance of 167,424 females at 73 nesting sites. More than
100,000 females nest at Tortuguero, Costa Rica, and more than 10,000
females nest at Quintana Roo, Mexico. Nesting data indicate long-term
increases at all major nesting sites. There is little genetic
substructure within the DPS, and turtles from multiple nesting beaches
share common foraging areas. Nesting is geographically widespread and
occurs at a diversity of mainland and insular sites.
Section 4(a)(1) Factors for the North Atlantic DPS
Nesting beaches are degraded by coastal development, coastal
armoring, beachfront lighting, erosion, sand extraction, and vehicle
and pedestrian traffic. Foraging habitat is degraded by pollution
(including oil spills, agricultural and residential runoff, and
sewage), propeller scarring, anchor damage, dredging, sand mining,
marina construction, and beach nourishment. The harvest of green
turtles and eggs remains legal in several countries (e.g., Lagueux et
al., 2014), and illegal harvest occurs in many areas. FP is a chronic,
often lethal disease that affects turtles throughout the range of the
DPS, and (as discussed in a summit held since the publication of the
proposed rule) especially in areas with some degree of environmental
degradation resulting from altered watersheds (NMFS, in progress). It
may be increasing in prevalence in some areas (e.g., Stringell et al.,
2015). As recently described by Brost et al. (2015), predation is one
of the main sources of egg and hatchling mortality in some areas.
Jaguars also prey on nesting females, as recently described by Guilder
et al. (2015). Though numerous regulatory mechanisms apply to the DPS,
many are inadequate due to limited implementation and enforcement.
There has been one regulatory change since the publication of the
proposed rule, which reduces the inadequacy of regulatory mechanisms:
The State of Louisiana repealed the prohibition on enforcement of
turtle excluder device regulations (LA HB668, July 1, 2015). Fisheries
bycatch in artisanal and industrial fishing gear (e.g., gill net,
trawls, and dredges) results in substantial mortality (e.g., Benaka et
al., 2013). Periodic dredging of sediments from navigational channels
can also result in incidental mortality of sea turtles (https://el.erdc.usace.army.mil/seaturtles/takes.cfm?Type=Total&Code=Table).
Vessel strikes are a significant and increasing source of mortality in
the U.S. Atlantic and Gulf of Mexico and likely in other locations. In
some areas, there has been an increase in strandings
[[Page 20078]]
due to entanglement in marine debris and the ingestion of plastics, as
recently described by Adimey et al. (2014), which causes blockage in
the gut and dilutes the nutritional contribution of the diet. Cold
stunning, the hypothermic reaction that occurs when sea turtles are
exposed to prolonged cold water temperatures, occurs regularly
throughout the range of the DPS and may result in a UME. Oil spills may
also result in a UME. The Deepwater Horizon oil spill was particularly
harmful to post-hatchlings and surface-pelagic juveniles by temporarily
destroying their Sargassum habitat (Powers et al., 2013) and resulting
in the ingestion of contaminants (Witherington et al., 2012). Climate
change is likely to have a negative effect on the DPS. Sea level rise
is likely to alter green turtle nesting habitat and reduce nesting
success. Increased sand temperature is likely to result in skewed sex
ratios and lethal incubation conditions, as recently described by
Santos et al. (2015a).
Conservation Efforts for the North Atlantic DPS
Conservation efforts include bycatch reduction measures, nesting
beach acquisitions, and nest protection programs to reduce harvest and
predation. Numerous initiatives, such as the Colombia National
Programme for the Conservation of Marine and Continental Turtles,
promote education, conservation, and outreach. The recovery of the DPS
is dependent on ESA protections and those provided by local, State, and
foreign laws, some of which may have been triggered by the original ESA
listing. Though ESA protections would be lost if the DPS were not
listed under the ESA, it is unclear whether local, State, and foreign
laws would remain in place.
Extinction Risk Analysis for the North Atlantic DPS
The high nesting abundance, increasing trends, connectivity, and
spatial diversity provide the DPS with some resilience against current
threats (i.e., the threats have not prevented positive population
growth in recent years). The DPS is threatened by several factors: The
current and projected destruction and modification of its habitat;
legal and illegal harvest of turtles and eggs; disease and predation;
inadequacy of regulatory mechanisms to regulate the underlying threats;
and other factors (i.e., fisheries bycatch, channel dredging, marine
debris, cold stunning, and climate change). Though beneficial, the
conservation efforts do not adequately reduce the threats. Based on the
above information, we conclude that the DPS is not presently in danger
of extinction throughout all or a significant portion of its range.
Listing is warranted because numerous threats remain, several of which
are likely to increase within the foreseeable future; all threats are
likely to increase if ESA protections are lost, resulting in curtailed
or reversed population trends. We conclude that the North Atlantic DPS
is likely to become endangered within the foreseeable future throughout
all or a significant portion of its range.
Listing Determination for the North Atlantic DPS
For the above reasons, we list the North Atlantic DPS as a
threatened species under the ESA.
Mediterranean DPS
The comments that we received on the Mediterranean DPS and
additional information that became available since the publication of
the proposed rule did not change our conclusions regarding its listing
determination. Therefore, we incorporate herein all information on the
Mediterranean DPS provided in the Status Review Report and proposed
rule, with the exception of the application of the critical risk
threshold from the Status Review Report, which does not directly
correlate with the ESA definitions of ``endangered'' and
``threatened,'' as explained in the proposed rule. The following
represents a brief summary of that information.
The range of the DPS includes the Mediterranean Sea (excluding the
Black Sea), with the Strait of Gibraltar as its western boundary.
Demographic Parameters for the Mediterranean DPS
The DPS exhibits low abundance, with an estimated total nester
abundance of 404 to 992 females at 32 sites. The DPS is severely
depleted relative to historical levels; however, five of seven nesting
sites indicate slightly increasing trends. Connectivity is high (i.e.,
little to no genetic substructure), but nesting site diversity is low.
Section 4(a)(1) Factors for the Mediterranean DPS
Nesting habitat is destroyed or modified by coastal development,
construction, beachfront lighting, sand extraction, beach erosion,
vehicular and pedestrian traffic, and beach pollution. Fishing and
pollution result in the destruction and modification of foraging
habitat. The harvest of turtles and eggs contributed to the historical
decline of this DPS and continues in several areas. Numerous species
prey on eggs and hatchlings. Many international and national regulatory
mechanisms exist; however, fisheries bycatch and tourism impacts are
poorly regulated. Fisheries bycatch results in substantial mortality
and is a major threat to the DPS. Vessel activity and strikes result in
mortality, injury, and abandoned nesting attempts. Marine debris is a
major concern. Climate change is likely to alter thermal sand
characteristics; in some areas, hatchling sex ratios are already highly
female biased (up to 95 percent).
Conservation Efforts for the Mediterranean DPS
Conservation efforts include protection of nesting beaches, removal
of marine debris, and establishment of marine protected areas. In a
recent study, Ullmann and Stachowitsch (2015) identified 49 stranding
response (i.e., rescue) centers, stations, and institutions throughout
the Mediterranean; however, communication among such facilities is
limited, and there are gaps in coverage.
Extinction Risk Analysis for the Mediterranean DPS
As a result of low nesting abundance (concentrated primarily in one
area), weak population growth rates, and low diversity of nesting
sites, the DPS has little resilience to threats, which include: Habitat
loss and degradation, overexploitation, predation, inadequate
regulatory mechanisms, fisheries bycatch, vessel traffic, marine
debris, and climate change. Although they are beneficial, the
conservation efforts do not adequately reduce threats. We conclude that
the Mediterranean DPS is in danger of extinction throughout all or a
significant portion of its range.
Listing Determination for the Mediterranean DPS
For the above reasons, we list the Mediterranean DPS as an
endangered species under the ESA.
South Atlantic DPS
The comments that we received on the South Atlantic DPS and
additional information that became available since the publication of
the proposed rule did not change our conclusions regarding its listing
determination. Therefore, we incorporate herein all information on the
South Atlantic DPS provided in the Status Review Report and proposed
rule, with the following exceptions: the boundary of the DPS (which was
changed to include all islands of the U.S. Virgin Islands), and the
application of the critical risk threshold from the Status Review
Report (which, as we
[[Page 20079]]
explained in the proposed rule, does not directly correlate with the
ESA definitions of ``endangered'' and ``threatened''). The following
represents a brief summary of that information.
The range of the South Atlantic DPS begins at the border of Panama
and Colombia at 7.5[deg] N., 77[deg] W., heads due north to 14[deg] N.,
77[deg] W., then east to 14[deg] N., 65.1[deg] W., then north to
19[deg] N., 65.1[deg] W., and along 19[deg] N. latitude to Mauritania
in Africa, to include the U.S. Virgin Islands in the Caribbean. It
extends along the coast of Africa to South Africa, with the southern
border being 40[deg] S. latitude.
Demographic Parameters for the South Atlantic DPS
The DPS exhibits high nesting abundance, with an estimated total
nester abundance of 63,332 females. Two nesting sites have greater than
10,000 nesting females: Poil[atilde]o, Guinea-Bissau and Ascension
Island, UK (Weber et al., 2014). Nesting trends are increasing at the
14 sites where abundance data are available. Within the DPS, there is
little genetic substructure, and turtles share important foraging
areas. Nesting is geographically widespread and diverse, occurring
along the western coast of Africa, on Caribbean and South Atlantic
islands, and along eastern South America.
Section 4(a)(1) Factors for the South Atlantic DPS
Nesting habitat is destroyed or modified by coastal development and
construction, placement of erosion control structures and other
barriers to nesting, beachfront lighting (e.g., Brei et al., 2014),
vehicular and pedestrian traffic, sand extraction, beach erosion, beach
sand placement, beach pollution, removal of native vegetation, and
planting of non-native vegetation. Foraging habitats are degraded by
pollution, including agriculture and industrial runoff, and anchor
damage to seagrass beds. The harvest of turtles and eggs contributed to
the historical declines of the DPS and continues in some areas, legally
and illegally. FP is highly variable in its presence and severity
throughout the range of the DPS. Predators eat eggs, hatchlings, and
nesting females. Throughout the range of the DPS, laws protecting sea
turtles and their nesting habitats are implemented to varying degrees,
but regulatory mechanisms to address fisheries bycatch are limited.
Turtles are incidentally captured throughout the South Atlantic DPS in
pelagic and demersal longlines, drift and set gill nets, bottom and
mid-water trawls, fishing dredges, pound nets and weirs, haul and purse
seines (e.g., Bourjea et al., 2014), pots and traps, and hook and line
gear. There is a high prevalence of marine debris and plastic ingestion
(e.g., Gonz[aacute]lez Carman et al., 2014). Sea level rise and
increased storm frequency and intensity are likely to eliminate the
functionality of nesting beaches on low-lying islands. Some beaches
will likely experience lethal incubation temperatures that will result
in the complete loss of hatchling cohorts.
Conservation Efforts for the South Atlantic DPS
Most nations in South America, the Caribbean, and Africa have
national legislation or programs sponsored by state governments, local
communities, academic institutions, and organizations to protect sea
turtles and their nesting and foraging habitats. Conservation efforts
at the primary nesting beaches, such as Ascension Island, include legal
prohibitions as well as extensive monitoring, outreach, and research
(https://www.seaturtle.org/mtrg/projects/tukot/ascension.shtml).
Extinction Risk Analysis for the South Atlantic DPS
As a result of the high population abundance, increasing nesting
trend, and diverse nesting sites, the DPS is somewhat resilient to
current threats, which include: Habitat loss and degradation,
overexploitation, disease and predation, inadequate regulatory
mechanisms, fisheries bycatch, marine debris, oil exploration and
extraction, and climate change. The conservation efforts vary in
consistency and efficacy throughout the range of the DPS and do not
adequately mitigate all threats. We conclude that the DPS is not
presently in danger of extinction throughout all or a significant
portion of its range. Listing is warranted because numerous threats
remain, some of which are likely to increase within the foreseeable
future; the loss of ESA protections would further exacerbate all
threats. We conclude that the DPS is likely to become an endangered
species within the foreseeable future throughout all or a significant
portion of its range.
Listing Determination for the South Atlantic DPS
For the above reasons, we list the South Atlantic DPS as a
threatened species under the ESA.
Southwest Indian DPS
The comments that we received on the Southwest Indian DPS did not
change our conclusions regarding its listing determination. Therefore,
we incorporate herein all information on the Southwest Indian DPS
provided in the Status Review Report and proposed rule, with the
exception of the application of the critical risk threshold from the
Status Review Report, which does not directly correlate with the ESA
definitions of ``endangered'' and ``threatened,'' as explained in the
proposed rule. The following represents a brief summary of that
information.
The range of the Southwest Indian DPS has as its western boundary
the shores of continental Africa from the equator, just north of the
Kenya-Somalia border, south to the Cape of Good Hope (South Africa),
and extends south from there along 19[deg] E. longitude to 40[deg] S.,
19[deg] E. Its southern boundary extends along 40[deg] S. latitude from
19[deg] E. to 84[deg] E., and its eastern boundary runs along 84[deg]
E. longitude from 40[deg] S. latitude to the equator. Its northern
boundary extends along the equator from 84[deg] E. to the continent of
Africa just north of the Kenya-Somalia border.
Demographic Parameters for the Southwest Indian DPS
The DPS exhibits high abundance, with an estimated total nester
abundance of 91,059 females at 15 nesting sites (four of which host
more than 10,000 females). Nesting data at these mostly protected
beaches indicate increasing trends. Within the DPS, there is a moderate
degree of genetic substructure (i.e., at least two stocks), with
connectivity between proximate sites. The high diversity of nesting
habitat includes insular and continental beaches.
Section 4(a)(1) Factors for the Southwest Indian DPS
Nesting beaches are threatened by increased tourism and artificial
lighting. Foraging habitats are degraded by development of the
coastline, dredging, land-fill, sedimentation, and sand extraction.
Legal and illegal harvest of turtles and eggs persists throughout the
DPS. Poaching of nesting females has led to declines at some beaches,
and foraging turtles are heavily poached in several areas. Existing
regulatory mechanisms to address poaching and bycatch are often
inadequately implemented and/or enforced, as demonstrated by the high
level of illegal harvest and bycatch within this DPS. The DPS is
threatened by bycatch in demersal and pelagic longlines, trawls, gill
nets, and purse seines (e.g., Bourjea et al., 2014). Sea level rise and
increasing storm events (as a result of climate change) are likely to
reduce nesting habitat throughout the range of
[[Page 20080]]
the DPS because much of the nesting occurs at low-lying islands and
atolls.
Conservation Efforts for the Southwest Indian DPS
Several regional initiatives have promoted conservation,
management, research and education throughout the range of the DPS.
Other multinational programs and national laws protect sea turtles. For
example, Mortimer and Day (1999) state that green turtles and nesting
habitat in the Chagos Archipelago are well protected by the BIOT
administration (Mortimer and Day, 1999) and a large marine protected
area (Hays et al., 2014); however, monitoring and conservation efforts
are not sufficient to adequately reduce all threats.
Extinction Risk Analysis for the Southwest Indian DPS
The high nesting abundance, increasing nesting trends, and spatial
and genetic diversity of the DPS provide some resilience to threats,
which include: Habitat loss and degradation, overexploitation of eggs
and turtles, inadequate regulatory mechanisms, fisheries bycatch, and
climate change. Despite many beneficial conservation efforts, poaching
and bycatch remain major threats. We conclude that the DPS is not
presently in danger of extinction throughout all or a significant
portion of its range. Listing is warranted because of the high levels
of harvest and bycatch, in the context of increasing impacts from
climate change, are likely to overwhelm the resilience of the DPS. We
conclude that the DPS is likely to become endangered within the
foreseeable future throughout all or a significant portion of its
range.
Listing Determination for the Southwest Indian DPS
For the above reasons, we list the Southwest Indian DPS as a
threatened species under the ESA.
North Indian DPS
We did not receive comments on the North Indian DPS, and there are
no changes to our proposed listing determination. Therefore, we
incorporate herein all information on the North Indian DPS provided in
the Status Review Report and proposed rule, with the exception of the
application of the critical risk threshold from the Status Review
Report, which does not directly correlate with the ESA definitions of
``endangered'' and ``threatened,'' as explained in the proposed rule.
The following represents a brief summary of that information.
The range of the North Indian DPS begins at the border of Somalia
and Kenya north into the Gulf of Aden, Red Sea, Persian Gulf and east
to the Gulf of Mannar off the southern tip of India and includes a
major portion of India's southeastern coast up to Andra Pradesh. The
southern and eastern boundaries are the equator (0[deg]) and 84[deg]
E., respectively, which intersect in the southeast corner of the range
of the DPS. It is bordered by the following countries (following the
water bodies from west to east): Somalia, Djibouti, Eritrea, Sudan,
Egypt, Israel, Jordan, Saudi Arabia, Yemen, Oman, United Arab Emirates,
Qatar, Bahrain, Kuwait, Iraq, the Islamic Republic of Iran, Pakistan,
India, and Sri Lanka.
Demographic Parameters for the North Indian DPS
The DPS exhibits high abundance, with an estimated total nester
abundance of 55,243 females at 38 nesting sites. Two sites host greater
than 10,000 nesting females: Ras Sharma, Yemen, and Ras Al Hadd, Oman.
Nesting trends are increasing at Ras Al Hadd but possibly declining at
other sites. Nesting is moderately dispersed, though concentrated in
the northern and western region of the range.
Section 4(a)(1) Factors for the North Indian DPS
Nesting beaches are degraded by light pollution and uncontrolled
particulate emissions that prevent the emergence of hatchlings from
their nests at some beaches. Marine habitat is degraded as a result of
trawling, dredging, siltation, land reclamation, and pollution. The
legal and illegal harvest of turtles and eggs persists at several
nesting beaches. Predation of eggs and hatchlings is a major threat at
some nesting beaches. Though numerous international and national
regulatory mechanisms apply to the DPS, many are inadequate due to
limited implementation and enforcement. Sea turtle bycatch in gill
nets, trawls, and longline fisheries is a significant cause of
mortality. Vessel strikes are a large and increasing threat. Beach
driving causes hatchling turtles to be caught in ruts, struck, or run
over. Marine debris entangles and is ingested by turtles. Sea level
rise and the increased frequency and intensity of storm events, as a
result of climate change, are likely to cause severe erosion to nesting
beaches.
Conservation Efforts for the North Indian DPS
There are several multinational and national programs underway to
protect and conserve the DPS. Most focus on protecting the nesting
beaches.
Extinction Risk Analysis for the North Indian DPS
The high abundance and broadly distributed nesting beaches of the
DPS provide some resilience to threats; however, nesting is relatively
concentrated and declining at some beaches. The DPS is threatened by
the following factors: habitat loss and degradation, harvest of turtles
and eggs, predation, inadequate regulatory mechanisms, fisheries
bycatch, marine debris, beach driving, boat strikes, and climate
change. While conservation efforts for the North Indian DPS are
extensive and expanding, they remain inadequate to ensure the long-term
viability of the population. We conclude that the DPS is not presently
in danger of extinction throughout all or a significant portion of its
range. Listing is warranted because resilience is limited and several
of the existing threats are likely to increase. Therefore, the DPS is
likely to become endangered within the foreseeable future throughout
all or a significant portion of its range.
Listing Determination for the North Indian DPS
For the above reasons, we list the North Indian DPS as a threatened
species under the ESA.
East Indian-West Pacific DPS
The comments that we received on the East Indian-West Pacific DPS
did not change our conclusions regarding its listing determination.
Therefore, we incorporate herein all information on the East Indian-
West Pacific DPS provided in the Status Review Report and proposed
rule, with the exception of the application of the critical risk
threshold from the Status Review Report, which does not directly
correlate with the ESA definitions of ``endangered'' and
``threatened,'' as explained in the proposed rule. The following
represents a brief summary of that information.
The western boundary for the range of the East Indian-West Pacific
DPS is 84[deg] E. longitude from 40[deg] S. to where it coincides with
India near Odisha, northeast along the shoreline and into the West
Pacific Ocean to include Taiwan extending east at 41[deg] N. to
146[deg] E. longitude, south and west to 4.5[deg] N., 129[deg] E., then
south and east to West Papua in Indonesia and the Torres Straits in
Australia. The southern boundary is 40[deg] S. latitude, encompassing
the Gulf of Carpentaria.
[[Page 20081]]
Demographic Parameters for the East Indian-West Pacific DPS
The DPS exhibits high abundance, with an estimated total nester
abundance of 77,009 females at 50 nesting sites. The largest nesting
site (Wellesley Group in northern Australia) supports approximately
25,000 nesting females. Declines occur at several nesting sites, though
others appear to be stable or increasing. There is complex and
significant spatial substructure, but some mixing of turtles occurs at
foraging areas. Nesting and foraging areas are widespread throughout
the range of the DPS, providing some resilience through habitat
diversity.
Section 4(a)(1) Factors for the East Indian-West Pacific DPS
The majority of nesting beaches are degraded due to tourism,
coastal development, artificial lighting, sand mining, oil and gas
production, and marine debris. Foraging habitat is degraded due to
siltation, sewage, pollution (e.g., oil spills, agricultural runoff,
and organic chemicals), commercial harvest of seagrass, trawling,
dynamite and potassium cyanide fishing, and vessel anchoring. The
harvest of turtles and eggs has led to declines throughout the range of
the DPS. At-sea poaching is a common problem. There is rising incidence
of FP. Nest and hatchling predation is prevalent. Though numerous
regulatory mechanisms apply to the DPS, many are inadequately
implemented and enforced. Incidental capture in artisanal and
commercial fisheries (e.g., those using drift and set gill nets, bottom
and mid-water trawling, fishing dredges, pound nets and weirs, and haul
and purse seines) is a significant and increasing threat. Turtles
ingest and become entangled in marine debris, including discarded
fishing gear (e.g., Wilcox et al., 2015). Climate change poses an
increasing threat to the DPS through the loss of nesting habitat (due
to sea level rise and increasing storm events) and the alteration of
thermal sand characteristics of beaches (from warming temperatures).
Conservation Efforts for the East Indian-West Pacific DPS
There are several conservation programs throughout the range of the
DPS. Sanctuaries and parks protect some nesting beaches, and some
marine protected areas have been established. There are bycatch
reduction efforts in some areas. Several programs conduct monitoring,
education, outreach, and enforcement.
Extinction Risk Analysis for the East Indian-West Pacific DPS
The high nesting abundance and spatial diversity of nesting and
foraging locations provide the DPS with some resilience against current
threats; however, nesting trends at several sites are declining. The
DPS is threatened by all section 4(a)(1) factors: Habitat loss and
degradation, overexploitation, disease and predation, inadequate
regulatory mechanisms, fisheries bycatch, marine debris, and climate
change. Though beneficial, the conservation efforts do not adequately
reduce threats. We conclude that the East Indian-West Pacific DPS is
not presently in danger of extinction throughout all or a significant
portion of its range. Listing is warranted because current and
increasing threats are likely to exacerbate population declines,
especially in the context of climate change. For these reasons, the DPS
is likely to become endangered within the foreseeable future throughout
all or a significant portion of its range.
Listing Determination for the East Indian-West Pacific DPS
For the above reasons, we list the East Indian-West Pacific DPS as
a threatened species under the ESA.
Central West Pacific DPS
The comments that we received on the Central West Pacific DPS did
not change our conclusions regarding its listing determination.
Therefore, we incorporate herein all information on the Central West
Pacific DPS provided in the Status Review Report and proposed rule,
with the exception of the application of the critical risk threshold
from the Status Review Report, which does not directly correlate with
the ESA definitions of ``endangered'' and ``threatened,'' as explained
in the proposed rule. The following represents a brief summary of that
information.
The range of the Central West Pacific DPS has a northern boundary
of 41[deg] N. latitude and is bounded by 41[deg] N., 169[deg] E. in the
northeast corner, going southeast to 9[deg] N., 175[deg] W., then
southwest to 13[deg] S., 171[deg] E., west and slightly north to the
eastern tip of Papua New Guinea, along the northern shore of the Island
of New Guinea to West Papua in Indonesia, northwest to 4.5[deg] N.,
129[deg] E. then to West Papua in Indonesia, then north to 41[deg] N.,
146[deg] E. It encompasses the Republic of Palau, Federated States of
Micronesia, New Guinea, Solomon Islands, Marshall Islands, Guam, CNMI,
and the Ogasawara Islands of Japan.
Demographic Parameters for the Central West Pacific DPS
The DPS exhibits low nesting abundance, with an estimated total
nester abundance of 6,518 females at 50 nesting sites. Nesting data
indicate increasing trends at one site but decreasing trends at others.
There is significant genetic substructure and limited connectivity
among four independent stocks. Nesting is relatively widespread but
occurs only on islands and atolls (i.e., little nesting site
diversity).
Section 4(a)(1) Factors for the Central West Pacific DPS
Nesting habitat is degraded by coastal development and
construction, placement of barriers to nesting, beachfront lighting,
tourism, vehicular and pedestrian traffic, sand extraction, beach
erosion, beach pollution, removal of native vegetation, and the
presence of non-native vegetation. Destruction and modification of
marine habitat occurs as a result of coastal construction, tourism,
sedimentation, pollution, sewage, runoff, military activities,
dredging, destructive fishing methods, and boat anchoring. The harvest
of turtles and eggs is a large and persistent threat throughout the
range of the DPS. Predation is a significant threat in some areas.
Though there are some existing regulatory mechanisms to reduce the
harvest of turtles and eggs and to prevent or reduce bycatch,
implementation and enforcement are inadequate. Turtles are incidentally
caught in longline, pole and line, and purse seine fisheries. Marine
debris results in the mortality of sea turtles through ingestion and
entanglement. Temperature increases, as a result of climate change, are
the greatest long-term threat to atoll morphology in nations throughout
the range of the DPS. Sea level rise is likely to reduce available
nesting habitat. The increased frequency and intensity of storm events
are likely to cause beach erosion and nest inundation, as demonstrated
in a recent study by Summers et al. (in progress). However, Ford and
Kench (2015, 2016) recently described shoreline accretion in the
Marshall Islands, despite typhoon-driven erosion and local sea level
rise.
Conservation Efforts Evaluation for the Central West Pacific DPS
Conservation efforts include programs to protect turtles, establish
protected areas, and reduce beach pollution. A recent study
demonstrates that turtle densities have increased by an order of
[[Page 20082]]
magnitude in a marine protected area in Guam (Martin et al., 2016).
Extinction Risk Analysis for the Central West Pacific DPS
The low nesting abundance, limited connectivity, and low nesting
diversity provide the DPS with little resilience against current
threats. Though nesting trends are increasing in some areas, they are
decreasing in others. The DPS is vulnerable to the following section
4(a)(1) factors: Habitat modification and destruction,
overexploitation, predation, fisheries bycatch, marine debris, and
climate change. Conservation efforts do not adequately reduce such
threats; ESA and additional protections are essential to the continued
existence of the DPS. We conclude that the DPS is in danger of
extinction throughout all or a significant portion of its range.
Listing Determination for the Central West Pacific DPS
For the above reasons, we list the Central West Pacific DPS as an
endangered species under the ESA.
Southwest Pacific DPS
We did not receive comments on the Southwest Pacific DPS and made
no changes to our proposed listing determination. Therefore, we
incorporate herein all information on the Southwest Pacific DPS
provided in the Status Review Report and proposed rule, with the
exception of the application of the critical risk threshold from the
Status Review Report, which does not directly correlate with the ESA
definitions of ``endangered'' and ``threatened,'' as explained in the
proposed rule. The following represents a brief summary of that
information.
The range of the Southwest Pacific DPS extends from the western
boundary of Torres Strait, to the eastern tip of Papua New Guinea and
out to the offshore coordinate of 13[deg] S., 171[deg] E.; the eastern
boundary runs from this point southeast to 40[deg] S., 176[deg] E.; the
southern boundary runs along 40[deg] S. from 142[deg] E. to 176[deg]
E.; and the western boundary runs from 40[deg] S., 142[deg] E. north to
the Australian coast then follows the coast northward to the Torres
Strait.
Demographic Parameters for the Southwest Pacific DPS
The DPS exhibits high nesting abundance, with an estimated total
nester abundance of 83,058 females at 12 aggregated nesting sites.
Three sites (all in Australia) host more than 10,000 nesting females:
Raine Island, Moulter Cay, and the Capricorn and Bunker Group. Nesting
data indicate slightly increasing trends. There are four regional
genetic stocks, though mixing occurs at foraging areas. Nesting and
foraging areas are widely dispersed.
Section 4(a)(1) Factors for the Southwest Pacific DPS
Nesting habitat has been degraded by beach erosion, artificial
lighting, pollution, removal of native vegetation, and planting of non-
native vegetation. Threats to foraging habitat include destructive
fishing practices, channel dredging, and marine pollution. Harvest of
turtles and eggs is substantial and occurs in many areas. Several
species prey on eggs and hatchlings. Existing regulatory mechanisms
inadequately address the incidental take of turtles, and many are not
enforced at the local level. Incidental capture in artisanal and
commercial fisheries (e.g., trawl, longline, drift net, and set net
fisheries) is a significant threat. Vessel strikes injure or kill
turtles in coastal waters. Port dredging and marine debris pose minor
threats to the DPS. Climate change impacts are likely to result in
increased hatchling mortality, skewed sex ratios, range shifts, diet
shifts, and loss of nesting habitat.
Conservation Efforts for the Southwest Pacific DPS
Conservation efforts for the DPS have resulted in take
prohibitions, implementation of bycatch reduction devices, improvement
of shark control devices, and safer dredging practices. Most nesting
occurs on protected beaches, and the habitat off the largest nesting
site falls within a marine protected area.
Extinction Risk Analysis for the Southwest Pacific DPS
The high nesting abundance, slightly increasing trends, and spatial
diversity provide the DPS with some resilience against current threats,
which include: Habitat loss and degradation, overexploitation, disease
and predation, inadequate regulatory mechanisms, fisheries bycatch,
boat strikes, marine debris, port dredging, and climate change. Though
beneficial, the conservation efforts are not sufficient to reduce all
threats. We conclude that the DPS is not presently in danger of
extinction throughout all or a significant portion of its range.
Listing is warranted because of several continuing and increasing
threats, as summarized above. As a result of such threats, we conclude
that the DPS is likely to become endangered within the foreseeable
future throughout all or a significant portion of its range.
Listing Determination for the Southwest Pacific DPS
For the above reasons, we list the Southwest Pacific DPS as a
threatened species under the ESA.
Central South Pacific DPS
The comments that we received on the Central South Pacific DPS did
not change our conclusions regarding its listing determination.
Therefore, we incorporate herein all information on the Central South
Pacific DPS provided in the Status Review Report and proposed rule,
with the exception of the application of the critical risk threshold
from the Status Review Report, which does not directly correlate with
the ESA definitions of ``endangered'' and ``threatened,'' as explained
in the proposed rule. The following represents a brief summary of that
information.
The range of the DPS extends north and east of New Zealand to
include a longitudinal expanse of 7,500 km, from Easter Island, Chile
in the east to Fiji in the west, and encompasses American Samoa, French
Polynesia, Cook Islands, Fiji, Kiribati, Tokelau, Tonga, and Tuvalu.
Its open ocean polygonal boundary endpoints are (clockwise from the
northwest-most extent): 9[deg] N., 175[deg] W. to 9[deg] N., 125[deg]
W. to 40[deg] S., 96[deg] W. to 40[deg] S., 176[deg] E., to 13[deg] S.,
171[deg] E., and back to 9[deg] N., 175[deg] W.
Demographic Parameters for the Central South Pacific DPS
The DPS exhibits low nesting abundance, with an estimated total
nester abundance of 2,677 to 3,600 nesting females at 59 nesting sites.
There is a negative nesting trend at the most abundant nesting site but
increasing trends at less abundant nesting beaches. There are at least
two genetic stocks within the DPS. Nesting is geographically broad, but
there is little diversity of nesting sites, with most nesting occurring
on low-lying coral atolls or oceanic islands.
Section 4(a)(1) Factors for the Central South Pacific DPS
Some nesting beaches are degraded by coastal erosion, development,
construction, sand extraction, artificial lighting, proximity to road
traffic, and natural disasters, such as tsunamis. Marine habitat is
degraded by runoff, sedimentation, dredging, ship groundings, natural
disasters, and pollution (e.g., oil spills, toxic and industrial
wastes, and heavy metals). Commercial and traditional exploitation of
turtles and eggs has resulted in declines at the most abundant nesting
site and other locations. Illegal harvest of turtles and eggs is also a
major threat.
[[Page 20083]]
Predation by introduced species is a significant threat in some areas.
Regulatory mechanisms are inadequate to curb the continued loss and
degradation of habitat and the harvest of turtles and eggs. Incidental
capture in artisanal and commercial fisheries (e.g., line, trap, and
net fisheries) is a significant threat to the DPS. The primary gear
types involved in these interactions include longlines, traps, and
nets. Injury and mortality result from the entanglement in and
ingestion of plastics, monofilament fishing line, and other marine
debris (e.g., Wedemeyer-Strombel et al., 2015). Islands within the
South Pacific are especially vulnerable to sea level rise, which
together with increasing storm events, is likely to reduce available
nesting habitat.
Conservation Efforts for the Central South Pacific DPS
Conservation efforts throughout the region, such as establishment
of protected areas and national legislation to protect turtles, provide
some benefits to the DPS. The remoteness of some areas appears to
provide the most conservation protection against certain threats, such
as poaching.
Extinction Risk Analysis for the Central South Pacific DPS
The low nesting abundance, decreasing nesting trends at the largest
nesting site, and low nesting diversity provide the DPS with little
resilience against current threats. Though nesting trends are
increasing at some less abundant nesting beaches, such trends provide
little additional resilience to the DPS. Therefore, the DPS is
vulnerable to the following section 4(a)(1) factors: Habitat loss and
degradation, overexploitation, predation, inadequate regulatory
mechanisms, fisheries bycatch, marine debris, and climate change.
Conservation efforts do not adequately reduce such threats; ESA and
additional protections are essential to the continued existence of the
DPS. We conclude that the DPS is in danger of extinction throughout all
or a significant portion of its range.
Listing Determination for the Central South Pacific DPS
For the above reasons, we list the Central South Pacific DPS as an
endangered species under the ESA.
Central North Pacific DPS
The comments that we received on the Central North Pacific DPS did
not change our conclusions regarding its listing determination.
Therefore, we incorporate herein all information on the Central North
Pacific DPS provided in the Status Review Report and proposed rule,
with the exception of the application of the critical risk threshold
from the Status Review Report, which does not directly correlate with
the ESA definitions of ``endangered'' and ``threatened,'' as explained
in the proposed rule. The following represents a brief summary of that
information.
The range of the Central North Pacific DPS includes the Hawaiian
Archipelago and Johnston Atoll. It is bounded by a four-sided polygon
with open ocean extents reaching to 41[deg] N., 169[deg] E. in the
northwest corner, 41[deg] N., 143[deg] W. in the northeast, 9[deg] N.,
125[deg] W. in southeast, and 9[deg] N., 175[deg] W. in the southwest.
Demographic Parameters for the Central North Pacific DPS
The DPS exhibits low nesting abundance, with an estimated total
nester abundance of 3,846 nesting females at 13 nesting sites. The most
recent published study on this DPS estimates the total nester abundance
at roughly 4,000 nesting females (Balazs et al., 2015). The nesting
trend is increasing. Nesting site diversity is extremely limited: 96
percent of nesting occurs at one low-lying atoll (i.e., FFS).
Section 4(a)(1) Factors for the Central North Pacific DPS
In the MHI, nesting and basking habitats are degraded by coastal
development and construction, vehicular and pedestrian traffic, beach
pollution, tourism, and other human related activities. Foraging
habitat is degraded by coastal development, marina construction,
siltation, pollution, sewage, military activities, vessel traffic, and
vessel groundings. As stated in a recent study, FP continues to cause
the majority of green turtle strandings in Hawai[revaps]i (Work et al.,
2015) and may be linked to environmental factors (Keller et al., 2014;
Van Houtan et al., 2014; Work et al., 2014; NMFS, in progress).
Numerous native and non-native predators prey on hatchlings and eggs.
Existing regulatory mechanisms do not adequately address the threat of
bycatch in international fisheries. In addition to incidental capture
in foreign longline fisheries, interactions with nearshore recreational
fisheries occur (Work et al., 2015). Marine debris is a significant
threat (e.g., Wedemeyer-Strombel et al., 2015); entanglement in lost or
discarded fishing gear is the second leading cause of strandings and
mortality in the MHI (Work et al., 2015). Vessel strikes result in
injury and mortality. Vessel traffic excludes turtles from their
preferred foraging areas. The extremely limited nesting diversity
(i.e., 96 percent of nesting at FFS) increases extinction risk by
rendering the DPS vulnerable to random variation and environmental
stochasticities. In addition, climate change impacts threaten the DPS.
Sea level rise and the increasing frequency and intensity of storm
events are likely to reduce available nesting habitat. A recent study
indicated that increasing temperatures are likely to modify beach
thermal regimes that are important to nesting and basking (Van Houtan
et al., 2015). Temperature increases are also likely to result in
increased hatchling mortality, skewed sex ratios, and changes in
juvenile and adult distribution patterns.
Conservation Efforts for the Central North Pacific DPS
Overall, State and Federal conservation efforts have been
successful in countering some threats. Important State initiatives
include the regulation of gill net fishing and the distribution of
barbless circle hooks.
Extinction Risk Analysis for the Central North Pacific DPS
Though the low nesting abundance and extremely limited nesting
diversity render the DPS vulnerable to several threats, the increasing
nesting trend at FFS provides some resilience. The DPS is threatened by
the following section 4(a)(1) factors: Present and threatened habitat
loss and degradation, disease and predation, inadequate regulatory
mechanisms, fisheries bycatch, marine debris, vessel activities,
limited spatial diversity, and climate change. Though beneficial, the
conservation efforts are not sufficient to reduce all threats. We
conclude that the DPS is not presently in danger of extinction
throughout all or a significant portion of its range. Listing is
warranted because of numerous continuing and increasing threats, which
would be further exacerbated if ESA protections were lost. We conclude
that the DPS is likely to become endangered within the foreseeable
future throughout all or a significant portion of its range.
Listing Determination for the Central North Pacific DPS
For the above reasons, we list the Central North Pacific DPS as a
threatened species under the ESA.
East Pacific DPS
The comments that we received on the East Pacific DPS did not
change our conclusions regarding its listing determination. Therefore,
we incorporate herein all information on the East Pacific DPS provided
in the Status Review Report and proposed
[[Page 20084]]
rule, with the exception of the application of the critical risk
threshold from the Status Review Report, which does not directly
correlate with the ESA definitions of ``endangered'' and
``threatened,'' as explained in the proposed rule. The following
represents a brief summary of that information.
The range of the DPS extends from 41[deg] N. southward along the
Pacific coast of the Americas to central Chile (40[deg] S.) and
westward to 142[deg] W. and 96[deg] W., respectively. The offshore
boundary of this DPS is a straight line between these two coordinates.
The East Pacific DPS includes the Mexican Pacific coast breeding
population, which was originally listed as endangered (43 FR 32800,
July 28, 1978).
Demographic Parameters for the East Pacific DPS
The DPS exhibits an estimated total nester abundance of 20,112
females at 39 nesting sites. The largest nesting aggregation (Colola,
Michoac[aacute]n, Mexico) hosts more than 10,000 nesting females.
Nesting data indicate increasing trends in recent decades. Within the
DPS, there is additional substructure, and four regional genetic stocks
have been identified; however, stocks mix at foraging areas. Nesting
occurs at both insular and continental sites, providing some spatial
diversity.
Section 4(a)(1) Factors for the East Pacific DPS
Some nesting beaches are degraded by coastal development, tourism,
and pedestrian traffic. Some foraging areas exhibit high levels of
contaminants and reduced seagrass communities. As described by Senko et
al. (2014), the direct harvest of turtles is a significant source of
mortality. The legal and illegal harvest of eggs is a significant
threat due to high demand and lack of enforcement of existing
protections. Predation by dogs results in egg and hatchling mortality
(Ruiz-Izaguirre et al., 2015; Santidri[aacute]n Tomillo et al., 2015).
Existing regulatory mechanisms inadequately regulate egg poaching, the
destruction of nesting habitat, and fisheries bycatch. Incidental
capture in artisanal and commercial fisheries (e.g., longline, drift
gill net, set gill net, and trawl fisheries) is a significant threat.
Other threats include marine debris ingestion, boat strikes, and red
tide poisoning, which may result in a UME. Climate change is likely to
impact nesting and hatchling success. In a recent study, Rhodes (2015)
found that females laid fewer nests in areas characterized by erosion
and tidal inundation (two likely impacts of sea level rise).
Conservation Efforts for the East Pacific DPS
Conservation initiatives include broad regional efforts and
national programs, such as the National Programme for the Conservation
of Marine and Continental Turtles in Colombia, which provides
education, conservation, and outreach plans. Marine reserves protect
green turtles and their foraging habitat.
Extinction Risk Analysis for the East Pacific DPS
The increasing trends and spatial diversity provide the DPS with
some resilience against current threats; the nesting abundance, though
not high, may be large enough to avoid depensation and other risks
associated with small population size. The DPS is threatened by the
following section 4(a)(1) factors: Habitat loss and degradation,
overexploitation, inadequate regulatory mechanisms, fisheries bycatch,
marine debris, boat strikes, red tide poisoning, and climate change.
Though beneficial, conservation efforts are not sufficient to
adequately reduce threats. We conclude that the DPS is not presently in
danger of extinction throughout all or a significant portion of its
range. Listing is warranted because significant threats (e.g., egg
poaching) continue and others (e.g., climate change) are increasing.
The loss of ESA protections would further exacerbate several threats.
We conclude that the DPS is likely to become endangered within the
foreseeable future throughout all or a significant portion of its
range.
Listing Determination for the East Pacific DPS
For the above reasons, we list the East Pacific DPS as a threatened
species under the ESA.
Final Determination
We reviewed the best available scientific and commercial
information, including the information in the Status Review Report, the
comments of peer reviewers, public comments, and information that has
become available since the publication of the proposed rule. We
identified 11 green turtle DPSs: North Atlantic, Mediterranean, South
Atlantic, Southwest Indian, North Indian, East Indian-West Pacific,
Central West Pacific, Southwest Pacific, Central South Pacific, Central
North Pacific, and East Pacific. For each DPS, we reviewed the
demographic parameters and section 4(a)(1) factors, performed an
extinction risk analysis, and considered conservation efforts. We
determined that the Mediterranean, Central West Pacific, and Central
South Pacific DPSs are endangered species, and the following DPSs are
threatened species: North Atlantic, South Atlantic, Southwest Indian,
North Indian, East Indian-West Pacific, Southwest Pacific, Central
North Pacific, and East Pacific. We hereby replace the original
listings for the species and breeding populations in Florida and the
Pacific coast of Mexico with listings of the 11 threatened or
endangered DPSs.
Significant Portion of the Range
Under the ESA and our implementing regulations, a species may
warrant listing if it is endangered or threatened throughout all or a
significant portion of its range. See the Final Policy on
Interpretation of the Phrase ``Significant Portion of Its Range'' in
the Endangered Species Act's Definitions of ``Endangered Species'' and
``Threatened Species'' (79 FR 37577, July 1, 2014). Under that policy,
we only need to consider whether listing may be appropriate on the
basis of the ``significant portion of its range'' language if the
rangewide analysis does not lead to a threatened or endangered listing
determination. Because we have determined that each green turtle DPS is
either threatened or endangered throughout all of its range, no portion
of its range can be ``significant'' for purposes of the definitions of
``endangered species'' and ``threatened species.''
Effects of Listing
Conservation benefits for species listed as endangered or
threatened under the ESA include: Recovery plans and actions (16 U.S.C.
1533(f)); designation of critical habitat if prudent and determinable
(16 U.S.C. 1533(a)(3)(A)(i)); the requirement that Federal agencies
consult with the Services to ensure that their actions are not likely
to jeopardize species or result in adverse modification or destruction
of critical habitat, should it be designated (16 U.S.C. 1536(a)(2));
and prohibitions against take and certain other activities (16 U.S.C.
1538). In addition, recognition of the species' status through listing
promotes conservation actions by Federal and State agencies, foreign
entities, conservation organizations, and individuals.
Identifying Section 7(a)(2) Consultation Requirements
Section 7(a)(2) of the ESA requires Federal agencies to consult
with the relevant Service(s) to insure that any action they authorize,
fund, or carry out is not likely to jeopardize the continued existence
of listed species or result in
[[Page 20085]]
the destruction or adverse modification of critical habitat (16 U.S.C.
1536(a)(2)). The ESA requires consultation for any Federal action that
may affect green turtles, which have been listed under the ESA since
1978. This will not change with the listing of the DPSs (i.e.,
consultation is required for any Federal action that may affect any of
the green turtle DPSs). Reinitiation of consultation is required for
any action that may affect one or more newly listed DPS. Federal
agencies must insure that any action they authorize, fund, or carry out
is not likely to jeopardize the continued existence of any green turtle
DPS. Examples of Federally authorized, funded, or implemented actions
that affect green turtles include, but are not limited to: Dredging and
channelization, beach nourishment and nearshore construction, pile-
driving, water quality standards, oil and gas exploration and
extraction, power plant operations, vessel activities, military
activities, and fisheries management practices.
Critical Habitat
Section 3 of the ESA defines critical habitat as: (1) The specific
areas within the geographical area occupied by a species, at the time
it is listed in accordance [with the ESA], on which are found those
physical or biological features (a) essential to the conservation of
the species and (b) that may require special management considerations
or protection; and (2) specific areas outside the geographical area
occupied by a species at the time it is listed in accordance [with the
ESA] upon a determination by the Services that such areas are essential
for the conservation of the species (16 U.S.C. 1532(5)). Section
4(a)(3)(A) requires us to designate critical habitat to the maximum
extent prudent and determinable and concurrently with a listing
determination (16 U.S.C. 1533(a)(3)(A)(i)), unless as described in
section 4(b)(6)(C), critical habitat is not then determinable, in which
case we may take an additional year to publish the final critical
habitat determination (16 U.S.C. 1533(b)(6)(C)(ii)). The implementing
regulations state that critical habitat shall not be designated within
foreign countries or in other areas outside of U.S. jurisdiction (50
CFR 424.12 (h)). The ranges of six DPSs occur within U.S. jurisdiction:
North Atlantic, South Atlantic, East Pacific, Central North Pacific,
Central South Pacific, and Central West Pacific. We are currently
evaluating the areas that contain physical and biological features that
are essential to the DPSs and may require special management
considerations or protection, but critical habitat is not determinable
at this time. Therefore, we will propose critical habitat in a future
rulemaking. As discussed in the proposed rule, designated critical
habitat, in waters surrounding Culebra Island, Puerto Rico, from the
mean high water line seaward to 3 nautical miles (5.6 km; 63 FR 46693,
September 2, 1998), remains in effect for the North Atlantic DPS.
Take Prohibitions
All prohibitions in section 9(a)(1) of the ESA (16 U.S.C.
1538(a)(1)) apply automatically under the statute to the three
endangered DPSs: Mediterranean, Central West Pacific and Central South
Pacific. These include prohibitions against importing, exporting,
engaging in foreign or interstate commerce, or ``taking'' of the
species. ``Take'' is defined under the ESA as ``to harass, harm,
pursue, hunt, shoot, wound, kill, trap, capture, or collect, or attempt
to engage in any such conduct'' (16 U.S.C. 1532(19)). These
prohibitions apply to any ``person'' (as defined by the ESA) subject to
the jurisdiction of the United States, including within the United
States, its territorial seas, or on the high seas. Certain exceptions
apply to employees of the Services, other Federal land management
agencies, and State conservation agencies. In addition, longstanding
requirements for fishing activities to protect endangered sea turtles
apply to these DPSs (50 CFR 224.104) and are not affected by this rule.
Section 4(d) of the ESA authorizes us to issue regulations that we
deem necessary and advisable to provide for the conservation of
threatened species (16 U.S.C. 1533(d)). As discussed in the proposed
rule, the longstanding protective regulations (50 CFR 17.42(b),
223.205, 223.206, and 223.207) remain in effect and continue to apply
section 9 prohibitions to threatened species of sea turtles, which
include the North Atlantic, South Atlantic, Southwest Indian, North
Indian, East Indian-West Pacific, Southwest Pacific, Central North
Pacific, and East Pacific DPSs. The specific content of those
provisions is beyond the scope of this rulemaking and is unaffected by
this rulemaking.
Pursuant to section 10 of the ESA, we may issue permits to carry
out activities otherwise prohibited by section 9 for scientific
purposes, to enhance the propagation or survival of the species, and
for incidental take in connection with otherwise lawful activities (16
U.S.C. 1539(a)(1)). For threatened species, we may also issue permits
for education and zoological exhibition (50 CFR 17.32(a)(1); 50 CFR
223.206(a)(1)).
Identification of Those Activities That Would Likely Constitute a
Violation of Section 9 of the ESA
On July 1, 1994, we published a policy (59 FR 34272) that requires
us to identify, to the maximum extent practicable at the time a species
is listed, those activities that would or would not likely constitute a
violation of section 9 of the ESA. The intent of this policy is to
increase public awareness of the effect of a listing on proposed and
ongoing activities within a species' range. Activities likely to
violate section 9 include, but are not limited to: (1) Importation or
exportation of any part of a green turtle or green turtle eggs; (2)
directed take of green turtles, including fishing for, capturing,
handling, or possessing green turtles, eggs, or parts; (3) sale of
green turtles, eggs, or parts in interstate commerce; (4) modification
or degradation of green turtle habitat, including nesting beaches,
beaches used for basking, and developmental, foraging habitat, and
migratory habitat that actually kills or injures green turtles (i.e.,
harm, 50 CFR 222.102); and (5) indirect take of green turtles in the
course of otherwise lawful activities, such as fishing, dredging, beach
nourishment, coastal construction, vessel traffic, and discharge of
pollutants. Whether a particular activity violates section 9 depends
upon the facts and circumstances of each incident. Because the green
turtle has been listed under the ESA since 1978, we do not anticipate
changes in the activities that would constitute a violation of section
9. Possible exceptions include those actions affecting the
Mediterranean, Central West Pacific, and Central South Pacific DPSs,
which are now listed as endangered, and the breeding populations in
Florida and the Pacific coast of Mexico, which were heretofore listed
as endangered. For example, the Services may issue permits for the
educational use and zoological exhibition of threatened, but not
endangered, sea turtles (50 CFR 17.32(a)(1); 50 CFR 223.206(a)(1)).
Activities not likely to violate section 9 of the ESA may include:
Take authorized by and carried out in accordance with the terms and
conditions of an ESA section 10(a)(1)(A) permit; and continued
possession of parts that were in possession at the time of the original
listing (i.e., 1978).
Peer Review
In December 2004, the Office of Management and Budget (OMB) issued
a Final Information Quality Bulletin for
[[Page 20086]]
Peer Review, establishing minimum peer review standards, a transparent
process for public disclosure of peer review planning, and
opportunities for public participation. The OMB Bulletin, implemented
under the Information Quality Act (Pub. L. 106-554), is intended to
enhance the quality and credibility of the Federal government's
scientific information and applies to influential or highly influential
scientific information disseminated on or after June 16, 2005. To
satisfy our requirements under the OMB Bulletin, we obtained
independent peer review of the Status Review Report by 15 independent
scientists with expertise in green turtle biology and genetics,
endangered species listing policy, and related fields. All peer
reviewer comments were addressed prior to the publication of the Status
Review Report and proposed rule.
References
A complete list of the references is available at: https://www.nmfs.noaa.gov/pr/species/turtles/green.htm.
Classification
National Environmental Policy Act
The 1982 amendments to section 4(b)(1)(A) of the ESA restrict the
information that may be considered when assessing species for listing.
Based on this limitation of criteria for a listing decision and the
opinion in Pacific Legal Foundation v. Andrus, 657 F. 2d 829 (6th Cir.
1981), NMFS has concluded that ESA listing actions are not subject to
the requirements of the National Environmental Policy Act. See NOAA
Administrative Order 216-6. Similarly, USFWS has determined that
environmental assessments and environmental impact statements, as
defined under the authority of the National Environmental Policy Act,
need not be prepared in connection with regulations pursuant to section
4(a) of the ESA (48 FR 49244, October 25, 1983).
Executive Order 12866, Regulatory Flexibility Act, and Paperwork
Reduction Act
As noted in the Conference Report on the 1982 amendments to the
ESA, economic impacts cannot be considered when assessing the status of
a species. Therefore, the economic analysis requirements of the
Regulatory Flexibility Act are not applicable to the listing process.
In addition, this final rule is exempt from review under Executive
Order 12866. This final rule does not contain a collection-of-
information requirement for the purposes of the Paperwork Reduction
Act.
Executive Order 13132, Federalism
In accordance with Executive Order 13132, we determined that this
final rule does not have significant Federalism effects and that a
Federalism assessment is not required.
List of Subjects
50 CFR Part 17
Endangered and threatened species, Exports, Imports, Reporting and
recordkeeping requirements, Transportation.
50 CFR Parts 223 and 224
Endangered and threatened species, Exports, Imports,
Transportation.
Dated: March 29, 2016.
Eileen Sobeck,
Assistant Administrator for Fisheries, National Marine Fisheries
Service.
Dated: March 15, 2016.
Stephen Guertin,
Acting Director, U.S. Fish and Wildlife Service.
For the reasons set out in the preamble, 50 CFR parts 17, 223, and
224 are amended as follows:
PART 17--ENDANGERED AND THREATENED WILDLIFE AND PLANTS
0
1. The authority citation for part 17 continues to read as follows:
Authority: 16 U.S.C. 1361-1407; 1531-1544; and 4201-4245, unless
otherwise noted.
0
2. In Sec. 17.11(h), under REPTILES, remove both entries for ``Sea
turtle, green'' and add in their place the eleven entries for ``Sea
turtle, green'' set forth below:
Sec. 17.11 Endangered and threatened wildlife.
* * * * *
(h) * * *
--------------------------------------------------------------------------------------------------------------------------------------------------------
Species Vertebrate
---------------------------------------------------- population where When Critical
Historic range endangered or Status listed habitat Special rules
Common name Scientific name threatened
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * * * *
Reptiles
* * * * * * *
Sea turtle, green (Central Chelonia mydas.... Central North Green sea turtles T 863 NA 17.42(b), 223.205,
North Pacific DPS). Pacific Ocean. originating from 223.206, 223.207.
the Central North
Pacific Ocean,
bounded by the
following
coordinates:
41[deg] N.,
169[deg] E. in
the northwest;
41[deg] N.,
143[deg] W. in
the northeast;
9[deg] N.,
125[deg] W. in
the southeast;
and 9[deg] N.,
175[deg] W. in
the southwest.
[[Page 20087]]
Sea turtle, green (Central Chelonia mydas.... Central South Green sea turtles E 863 NA 224.104.
South Pacific DPS). Pacific Ocean. originating from
the Central South
Pacific Ocean,
bounded by the
following
coordinates:
9[deg] N.,
175[deg] W. in
the northwest;
9[deg] N.,
125[deg] W. in
the northeast;
40[deg] S.,
96[deg] W. in the
southeast;
40[deg] S.,
176[deg] E. in
the southwest;
and 13[deg] S.,
171[deg] E. in
the west.
Sea turtle, green (Central West Chelonia mydas.... Central West Green sea turtles E 863 NA 224.104.
Pacific DPS). Pacific Ocean. originating from
the Central West
Pacific Ocean,
bounded by the
following
coordinates:
41[deg] N.,
146[deg] E. in
the northwest;
41[deg] N.,
169[deg] E. in
the northeast;
9[deg] N.,
175[deg] W. in
the east; 13[deg]
S., 171[deg] E.
in the southeast;
along the
northern coast of
the island of New
Guinea; and
4.5[deg] N.,
129[deg] E. in
the west.
Sea turtle, green (East Indian- Chelonia mydas.... Eastern Indian and Green sea turtles T 863 NA 17.42(b), 223.205,
West Pacific DPS). Western Pacific originating from 223.206, 223.207.
Oceans. the Eastern
Indian and
Western Pacific
Oceans, bounded
by the following
lines and
coordinates:
41[deg] N. Lat.
in the north,
41[deg] N.,
146[deg] E. in
the northeast;
4.5[deg] N.,
129[deg] E. in
the southeast;
along the
southern coast of
the island of New
Guinea; along the
western coast of
Australia (west
of 142[deg] E.
Long.); 40[deg]
S. Lat. in the
south; and
84[deg] E. Long.
in the east.
Sea turtle, green (East Pacific Chelonia mydas.... East Pacific Ocean Green sea turtles T 863 NA 17.42(b), 223.205,
DPS). originating from 223.206, 223.207.
the East Pacific
Ocean, bounded by
the following
lines and
coordinates:
41[deg] N.,
143[deg] W. in
the northwest;
41[deg] N. Lat.
in the north;
along the western
coasts of the
Americas; 40[deg]
S. Lat. in the
south; and
40[deg] S.,
96[deg] W. in the
southwest.
Sea turtle, green Chelonia mydas.... Mediterranean Sea. Green sea turtles E 863 NA 224.104.
(Mediterranean DPS). originating from
the Mediterranean
Sea, bounded by
5.5[deg] W. Long.
in the west.
[[Page 20088]]
Sea turtle, green (North Chelonia mydas.... North Atlantic Green sea turtles T 863 226.208 17.42(b), 223.205,
Atlantic DPS). Ocean. originating from 223.206, 223.207.
the North
Atlantic Ocean,
bounded by the
following lines
and coordinates:
48[deg] N. Lat.
in the north,
along the western
coasts of Europe
and Africa (west
of 5.5[deg] W.
Long.); north of
19[deg] N. Lat.
in the east;
bounded by
19[deg] N.,
65.1[deg] W. to
14[deg] N.,
65.1[deg] W. then
14[deg] N.,
77[deg] W. in the
south and west;
and along the
eastern coasts of
the Americas
(north of
7.5[deg] N.,
77[deg] W.).
Sea turtle, green (North Indian Chelonia mydas.... North Indian Ocean Green sea turtles T 863 NA 17.42(b), 223.205,
DPS). originating from 223.206, 223.207.
the North Indian
Ocean, bounded
by: Africa and
Asia in the west
and north;
84[deg] E. Long.
in the east; and
the equator in
the south.
Sea turtle, green (South Chelonia mydas.... South Atlantic Green sea turtles T 863 NA 17.42(b), 223.205,
Atlantic DPS). Ocean. originating from 223.206, 223.207.
the South
Atlantic Ocean,
bounded by the
following lines
and coordinates:
along the
northern and
eastern coasts of
South America
(east of 7.5[deg]
N., 77[deg] W.);
14[deg] N.,
77[deg] W. to
14[deg] N.,
65.1[deg] W. to
19[deg] N.,
65.1[deg] W. in
the north and
west; 19[deg] N.
Lat. in the
northeast;
40[deg] S.,
19[deg] E. in the
southeast; and
40[deg] S. Lat.
in the south.
Sea turtle, green (Southwest Chelonia mydas.... Southwest Indian Green sea turtles T 863 NA 17.42(b), 223.205,
Indian DPS). Ocean. originating from 223.206, 223.207.
the Southwest
Indian Ocean,
bounded by the
following lines:
the equator to
the north;
84[deg] E. Long.
to the east;
40[deg] S. Lat.
to the south; and
19[deg] E. Long
(and along the
eastern coast of
Africa) in the
west.
Sea turtle, green (Southwest Chelonia mydas.... Southwest Pacific Green sea turtles T 863 NA 17.42(b), 223.205,
Pacific DPS). Ocean. originating from 223.206, 223.207.
the Southwest
Pacific Ocean,
bounded by the
following lines
and coordinates:
along the
southern coast of
the island of New
Guinea and the
Torres Strait
(east of 142[deg]
E Long.); 13[deg]
S., 171[deg] E.
in the northeast;
40[deg] S.,
176[deg] E. in
the southeast;
and 40[deg] S.,
142[deg] E. in
the southwest.
* * * * * * *
--------------------------------------------------------------------------------------------------------------------------------------------------------
[[Page 20089]]
PART 223--THREATENED MARINE AND ANADROMOUS SPECIES
0
3. The authority citation for part 223 continues to read as follows:
Authority: 16 U.S.C. 1531-1543; subpart B, Sec. 223.201-202
also issued under 16 U.S.C. 1361 et seq.; 16 U.S.C. 5503(d) for
Sec. 223.206(d)(9).
0
4. Amend the table in Sec. 223.102(e) by removing the entry for ``Sea
turtle, green'' and adding in its place the eight entries for ``Sea
turtle, green'' under Reptiles to read as follows:
Sec. 223.102 Enumeration of threatened marine and anadromous species.
* * * * *
(e) * * *
----------------------------------------------------------------------------------------------------------------
Species \1\
--------------------------------------------------------------------- Citation(s) for Critical
Description of listing habitat ESA rules
Common name Scientific name listed entity determination(s)
----------------------------------------------------------------------------------------------------------------
* * * * * * *
Reptiles \2\
----------------------------------------------------------------------------------------------------------------
Sea turtle, green (Central Chelonia mydas... Green sea turtles 81 FR [Insert NA 223.205,
North Pacific DPS). originating from Federal Register 223.206,
the Central page where the 223.207.
North Pacific document begins],
Ocean, bounded 4/6/16.
by the following
coordinates:
41[deg] N.,
169[deg] E. in
the northwest;
41[deg] N.,
143[deg] W. in
the northeast;
9[deg] N.,
125[deg] W. in
the southeast;
and 9[deg] N.,
175[deg] W. in
the southwest.
Sea turtle, green (East Indian- Chelonia mydas... Green sea turtles 81 FR [Insert NA 223.205,
West Pacific DPS). originating from Federal Register 223.206,
the Eastern page where the 223.207.
Indian and document begins],
Western Pacific 4/6/16.
Oceans, bounded
by the following
lines and
coordinates:
41[deg] N. Lat.
in the north,
41[deg] N.,
146[deg] E. in
the northeast;
4.5[deg] N.,
129[deg] E. in
the southeast;
along the
southern coast
of the island of
New Guinea;
along the
western coast of
Australia (west
of 142[deg] E.
Long.); 40[deg]
S. Lat. in the
south; and
84[deg] E. Long.
in the east.
Sea turtle, green (East Chelonia mydas... Green sea turtles 81 FR [Insert NA 223.205,
Pacific DPS). originating from Federal Register 223.206,
the East Pacific page where the 223.207.
Ocean, bounded document begins],
by the following 4/6/16.
lines and
coordinates:
41[deg] N.,
143[deg] W. in
the northwest;
41[deg] N. Lat.
in the north;
along the
western coasts
of the Americas;
40[deg] S. Lat.
in the south;
and 40[deg] S.,
96[deg] W. in
the southwest.
Sea turtle, green (North Chelonia mydas... Green sea turtles 81 FR [Insert 226.208 223.205,
Atlantic DPS). originating from Federal Register 223.206,
the North page where the 223.207.
Atlantic Ocean, document begins],
bounded by the 4/6/16.
following lines
and coordinates:
48[deg] N. Lat.
in the north,
along the
western coasts
of Europe and
Africa (west of
5.5[deg] W.
Long.); north of
19[deg] N. Lat.
in the east;
bounded by
19[deg] N.,
65.1[deg] W. to
14[deg] N.,
65.1[deg] W.
then 14[deg] N.,
77[deg] W. in
the south and
west; and along
the eastern
coasts of the
Americas (north
of 7.5[deg] N.,
77[deg] W.).
Sea turtle, green (North Chelonia mydas... Green sea turtles 81 FR [Insert NA 223.205,
Indian DPS). originating from Federal Register 223.206,
the North Indian page where the 223.207.
Ocean, bounded document begins],
by: Africa and 4/6/16.
Asia in the west
and north;
84[deg] E. Long.
in the east; and
the equator in
the south.
Sea turtle, green (South Chelonia mydas... Green sea turtles 81 FR [Insert NA 223.205,
Atlantic DPS). originating from Federal Register 223.206,
the South page where the 223.207.
Atlantic Ocean, document begins],
bounded by the 4/6/16.
following lines
and coordinates:
Along the
northern and
eastern coasts
of South America
(east of
7.5[deg] N.,
77[deg] W.);
14[deg] N.,
77[deg] W. to
14[deg] N.,
65.1[deg] W. to
19[deg] N.,
65.1[deg] W. in
the north and
west; 19[deg] N.
Lat. in the
northeast;
40[deg] S.,
19[deg] E. in
the southeast;
and 40[deg] S.
Lat. in the
south.
[[Page 20090]]
Sea turtle, green (Southwest Chelonia mydas... Green sea turtles 81 FR [Insert NA 223.205,
Indian DPS). originating from Federal Register 223.206,
the Southwest page where the 223.207.
Indian Ocean, document begins],
bounded by the 4/6/16.
following lines:
The equator to
the north;
84[deg] E. Long.
to the east;
40[deg] S. Lat.
to the south;
and 19[deg] E.
Long (and along
the eastern
coast of Africa)
in the west.
Sea turtle, green (Southwest Chelonia mydas... Green sea turtles 81 FR [Insert NA 223.205,
Pacific DPS). originating from Federal Register 223.206,
the Southwest page where the 223.207.
Pacific Ocean, document begins],
bounded by the 4/6/16.
following lines
and coordinates:
Along the
southern coast
of the island of
New Guinea and
the Torres
Strait (east of
142[deg] E
Long.); 13[deg]
S., 171[deg] E.
in the
northeast;
40[deg] S.,
176[deg] E. in
the southeast;
and 40[deg] S.,
142[deg] E. in
the southwest.
* * * * * * *
----------------------------------------------------------------------------------------------------------------
\1\ Species includes taxonomic species, subspecies, distinct population segments (DPSs) (for a policy statement,
see 61 FR 4722, February 7, 1996), and evolutionarily significant units (ESUs) (for a policy statement, see 56
FR 58612, November 20, 1991).
\2\ Jurisdiction for sea turtles by the Department of Commerce, National Oceanic and Atmospheric Administration,
National Marine Fisheries Service, is limited to turtles while in the water.
PART 224--ENDANGERED MARINE AND ANADROMOUS SPECIES
0
5. The authority citation for part 224 continues to read as follows:
Authority: 16 U.S.C. 1531-1543 and 16 U.S.C. 1361 et seq.
0
6. Amend Sec. 224.101(h) by removing the entry for ``Sea turtle,
green'' and adding in its place the three entries for ``Sea turtle,
green'' under Reptiles to read as follows:
Sec. 224.101 Enumeration of endangered marine and anadromous species.
* * * * *
(h) * * *
----------------------------------------------------------------------------------------------------------------
Species \1\
--------------------------------------------------------------------- Citation(s) for Critical
Description of listing habitat ESA rules
Common name Scientific name listed entity determination(s)
----------------------------------------------------------------------------------------------------------------
* * * * * * *
Reptiles \2\
----------------------------------------------------------------------------------------------------------------
Sea turtle, green (Central Chelonia mydas... Green sea turtles 81 FR [Insert NA 224.104.
South Pacific DPS). originating from Federal Register
the Central page where the
South Pacific document begins],
Ocean, bounded 4/6/16.
by the following
coordinates:
9[deg] N.,
175[deg] W. in
the northwest;
9[deg] N.,
125[deg] W. in
the northeast;
40[deg] S.,
96[deg] W. in
the southeast;
40[deg] S.,
176[deg] E. in
the southwest;
and 13[deg] S.,
171[deg] E. in
the west.
Sea turtle, green (Central Chelonia mydas... Green sea turtles 81 FR [Insert NA 224.104.
West Pacific DPS). originating from Federal Register
the Central West page where the
Pacific Ocean, document begins],
bounded by the 4/6/16.
following
coordinates:
41[deg] N.,
146[deg] E. in
the northwest;
41[deg] N.,
169[deg] E. in
the northeast;
9[deg] N.,
175[deg] W. in
the east;
13[deg] S.,
171[deg] E. in
the southeast;
along the
northern coast
of the island of
New Guinea; and
4.5[deg] N.,
129[deg] E. in
the west.
Sea turtle, green Chelonia mydas... Green sea turtles 81 FR [Insert NA 224.104.
(Mediterranean DPS). originating from Federal Register
the page where the
Mediterranean document begins],
Sea, bounded by 4/6/16.
5.5[deg] W.
Long. in the
west.
* * * * * * *
----------------------------------------------------------------------------------------------------------------
\1\ Species includes taxonomic species, subspecies, distinct population segments (DPSs) (for a policy statement,
see 61 FR 4722, February 7, 1996), and evolutionarily significant units (ESUs) (for a policy statement, see 56
FR 58612, November 20, 1991).
\2\ Jurisdiction for sea turtles by the Department of Commerce, National Oceanic and Atmospheric Administration,
National Marine Fisheries Service, is limited to turtles while in the water.
[FR Doc. 2016-07587 Filed 4-5-16; 8:45 am]
BILLING CODE 3510-22-P