Endangered and Threatened Wildlife; 90-Day Finding on a Petition To List the Atlantic Humpback Dolphin as Threatened or Endangered Under the Endangered Species Act, 68452-68456 [2021-26225]
Download as PDF
lotter on DSK11XQN23PROD with PROPOSALS1
68452
Federal Register / Vol. 86, No. 229 / Thursday, December 2, 2021 / Proposed Rules
CAA. This proposed action merely
proposes to approve state law as
meeting Federal requirements and does
not impose additional requirements
beyond those imposed by state law. For
that reason, this proposed action:
• Is not a significant regulatory action
subject to review by the Office of
Management and Budget under
Executive Orders 12866 (58 FR 51735,
October 4, 1993) and 13563 (76 FR 3821,
January 21, 2011);
• Does not impose an information
collection burden under the provisions
of the Paperwork Reduction Act (44
U.S.C. 3501 et seq.);
• Is certified as not having a
significant economic impact on a
substantial number of small entities
under the Regulatory Flexibility Act (5
U.S.C. 601 et seq.);
• Does not contain any unfunded
mandate or significantly or uniquely
affect small governments, as described
in the Unfunded Mandates Reform Act
of 1995 (Pub. L. 104–4);
• Does not have Federalism
implications as specified in Executive
Order 13132 (64 FR 43255, August 10,
1999);
• Is not an economically significant
regulatory action based on health or
safety risks subject to Executive Order
13045 (62 FR 19885, April 23, 1997);
• Is not a significant regulatory action
subject to Executive Order 13211 (66 FR
28355, May 22, 2001);
• Is not subject to requirements of
Section 12(d) of the National
Technology Transfer and Advancement
Act of 1995 (15 U.S.C. 272 note) because
application of those requirements would
be inconsistent with the CAA; and
• Does not provide EPA with the
discretionary authority to address, as
appropriate, disproportionate human
health or environmental effects, using
practicable and legally permissible
methods, under Executive Order 12898
(59 FR 7629, February 16, 1994).
The SIP is not approved to apply on
any Indian reservation land or in any
other area where EPA or an Indian tribe
has demonstrated that a tribe has
jurisdiction. In those areas of Indian
country, the rule does not have tribal
implications as specified by Executive
Order 13175 (65 FR 67249, November 9,
2000), nor will it impose substantial
direct costs on tribal governments or
preempt tribal law.
List of Subjects in 40 CFR Part 52
Environmental protection, Air
pollution control, Incorporation by
reference, Intergovernmental relations,
Nitrogen dioxide, Ozone, Reporting and
recordkeeping requirements, Volatile
organic compounds.
VerDate Sep<11>2014
16:31 Dec 01, 2021
Jkt 256001
Authority: 42 U.S.C. 7401 et seq.
Dated: November 26, 2021.
John Blevins,
Acting Regional Administrator, Region 4.
[FR Doc. 2021–26140 Filed 12–1–21; 8:45 am]
BILLING CODE 6560–50–P
DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric
Administration
50 CFR Parts 223 and 224
[Docket No. 211129–0246; RTID 0648–
XR118]
Endangered and Threatened Wildlife;
90-Day Finding on a Petition To List
the Atlantic Humpback Dolphin as
Threatened or Endangered Under the
Endangered Species Act
National Marine Fisheries
Service (NMFS), National Oceanic and
Atmospheric Administration (NOAA),
Commerce.
ACTION: 90-Day petition finding, request
for information, and initiation of status
review.
AGENCY:
We, NMFS, announce a 90day finding on a petition to list the
Atlantic humpback dolphin (Sousa
teuszii) as threatened or endangered
under the Endangered Species Act
(ESA). We find that the petition presents
substantial scientific or commercial
information indicating that the
petitioned action may be warranted.
Therefore, we are initiating a status
review of the species to determine
whether listing under the ESA is
warranted. To ensure this status review
is comprehensive, we are soliciting
scientific and commercial information
regarding this species.
DATES: Scientific and commercial
information pertinent to the petitioned
action must be received by January 31,
2022.
ADDRESSES: You may submit comments
on this document, identified by NOAA–
NMFS–2021–0110 by the following
method:
• Electronic Submissions: Submit all
electronic public comments via the
Federal eRulemaking Portal. Go to
https://www.regulations.gov and enter
NOAA–NMFS–2021–0110 in the Search
box. Click on the ‘‘Comment’’ icon,
complete the required fields, and enter
or attach your comments.
Instructions: Comments sent by any
other method, to any other address or
individual, or received after the end of
the comment period, may not be
considered by NMFS. All comments
SUMMARY:
PO 00000
Frm 00008
Fmt 4702
Sfmt 4702
received are a part of the public record
and will generally be posted for public
viewing on www.regulations.gov
without change. All personal identifying
information (e.g., name, address, etc.),
confidential business information, or
otherwise sensitive information
submitted voluntarily by the sender will
be publicly accessible. NMFS will
accept anonymous comments (enter ‘‘N/
A’’ in the required fields if you wish to
remain anonymous).
Interested persons may obtain a copy
of the petition online at the NMFS
website: https://www.fisheries.noaa.gov/
national/endangered-speciesconservation/petitions-awaiting-90-dayfindings.
FOR FURTHER INFORMATION CONTACT:
Heather Austin, NMFS Office of
Protected Resources, (301) 427–8422,
Heather.Austin@noaa.gov.
SUPPLEMENTARY INFORMATION:
Background
On September 8, 2021, we received a
petition from the Animal Welfare
Institute, the Center for Biological
Diversity, and VIVA Vaquita to list the
Atlantic humpback dolphin (Sousa
teuszii) as a threatened or endangered
species under the ESA. The petition
asserts that Sousa teuszii is threatened
by four of the five ESA section 4(a)(1)
factors: (1) The present destruction or
modification of its habitat; (2)
overutilization for commercial
purposes; (3) inadequacy of existing
regulatory mechanisms; and (4)
manmade factors affecting its continued
existence. The petition is available
online (see ADDRESSES).
ESA Statutory, Regulatory, and Policy
Provisions and Evaluation Framework
Section 4(b)(3)(A) of the ESA of 1973,
as amended (16 U.S.C. 1531 et seq.),
requires, to the maximum extent
practicable, that within 90 days of
receipt of a petition to list a species as
threatened or endangered, the Secretary
of Commerce make a finding on whether
that petition presents substantial
scientific or commercial information
indicating that the petitioned action
may be warranted, and to promptly
publish such finding in the Federal
Register (16 U.S.C. 1533(b)(3)(A)). When
it is found that substantial scientific or
commercial information in a petition
indicates the petitioned action may be
warranted (a ‘‘positive 90-day finding’’),
we are required to promptly commence
a review of the status of the species
concerned during which we will
conduct a comprehensive review of the
best available scientific and commercial
information. In such cases, we conclude
E:\FR\FM\02DEP1.SGM
02DEP1
lotter on DSK11XQN23PROD with PROPOSALS1
Federal Register / Vol. 86, No. 229 / Thursday, December 2, 2021 / Proposed Rules
the review with a finding as to whether,
in fact, the petitioned action is
warranted within 12 months of receipt
of the petition. Because the finding at
the 12-month stage is based on a more
thorough review of the available
information, as compared to the narrow
scope of review at the 90-day stage, a
‘‘may be warranted’’ finding does not
prejudge the outcome of the status
review.
Under the ESA, a listing
determination may address a species,
which is defined to also include
subspecies and, for any vertebrate
species, any distinct population
segment (DPS) that interbreeds when
mature (16 U.S.C. 1532(16)). A joint
NMFS–U.S. Fish and Wildlife Service
(USFWS) (jointly, ‘‘the Services’’) policy
clarifies the agencies’ interpretation of
the phrase ‘‘distinct population
segment’’ for the purposes of listing,
delisting, and reclassifying a species
under the ESA (61 FR 4722; February 7,
1996). A species, subspecies, or DPS is
‘‘endangered’’ if it is in danger of
extinction throughout all or a significant
portion of its range, and ‘‘threatened’’ if
it is likely to become endangered within
the foreseeable future throughout all or
a significant portion of its range (ESA
sections 3(6) and 3(20), respectively, 16
U.S.C. 1532(6) and (20)). Pursuant to the
ESA and our implementing regulations,
we determine whether species are
threatened or endangered based on any
one or a combination of the following
five section 4(a)(1) factors: (1) The
present or threatened destruction,
modification, or curtailment of habitat
or range; (2) overutilization for
commercial, recreational, scientific, or
educational purposes; (3) disease or
predation; (4) inadequacy of existing
regulatory mechanisms to address
identified threats; (5) or any other
natural or manmade factors affecting the
species’ existence (16 U.S.C. 1533(a)(1),
50 CFR 424.11(c)).
ESA-implementing regulations issued
jointly by NMFS and USFWS (50 CFR
424.14(h)(1)(i)) define ‘‘substantial
scientific or commercial information’’ in
the context of reviewing a petition to
list, delist, or reclassify a species as
‘‘credible scientific or commercial
information in support of the petition’s
claims such that a reasonable person
conducting an impartial scientific
review would conclude that the action
proposed in the petition may be
warranted.’’ Conclusions drawn in the
petition without the support of credible
scientific or commercial information
will not be considered ‘‘substantial
information.’’ In reaching the initial (90day) finding on the petition, we will
consider the information described in
VerDate Sep<11>2014
16:31 Dec 01, 2021
Jkt 256001
sections 50 CFR 424.14(c), (d), and (g)
(if applicable).
Our determination as to whether the
petition provides substantial scientific
or commercial information indicating
that the petitioned action may be
warranted will depend in part on the
degree to which the petition includes
the following types of information: (1)
Information on current population
status and trends and estimates of
current population sizes and
distributions, both in captivity and the
wild, if available; (2) identification of
the factors under section 4(a)(1) of the
ESA that may affect the species and
where these factors are acting upon the
species; (3) whether and to what extent
any or all of the factors alone or in
combination identified in section 4(a)(1)
of the ESA may cause the species to be
an endangered species or threatened
species (i.e, the species is currently in
danger of extinction or is likely to
become so within the foreseeable
future), and, if so, how high in
magnitude and how imminent the
threats to the species and its habitat are;
(4) information on adequacy of
regulatory protections and effectiveness
of conservation activities by States as
well as other parties, that have been
initiated or that are ongoing, that may
protect the species or its habitat; and (5)
a complete, balanced representation of
the relevant facts, including information
that may contradict claims in the
petition. See 50 CFR 424.14(d).
If the petitioner provides
supplemental information before the
initial finding is made and states that it
is part of the petition, the new
information, along with the previously
submitted information, is treated as a
new petition that supersedes the
original petition, and the statutory
timeframes will begin when such
supplemental information is received.
See 50 CFR 424.14(g).
We may also consider information
readily available at the time the
determination is made (50 CFR
424.14(h)(1)(ii)). We are not required to
consider any supporting materials cited
by the petitioner if the petitioner does
not provide electronic or hard copies, to
the extent permitted by U.S. copyright
law, or appropriate excerpts or
quotations from those materials (e.g.,
publications, maps, reports, letters from
authorities). See 50 CFR 424.14(c)(6).
The ‘‘substantial scientific or
commercial information’’ standard must
be applied in light of any prior reviews
or findings we have made on the listing
status of the species that is the subject
of the petition (50 CFR 424.14(h)(1)(iii)).
Where we have already conducted a
finding on, or review of, the listing
PO 00000
Frm 00009
Fmt 4702
Sfmt 4702
68453
status of that species (whether in
response to a petition or on our own
initiative), we will evaluate any petition
received thereafter seeking to list, delist,
or reclassify that species to determine
whether a reasonable person conducting
an impartial scientific review would
conclude that the action proposed in the
petition may be warranted despite the
previous review or finding. Where the
prior review resulted in a final agency
action—such as a final listing
determination, 90-day not-substantial
finding, or 12-month not-warranted
finding—a petition will generally not be
considered to present substantial
scientific and commercial information
indicating that the petitioned action
may be warranted unless the petition
provides new information or analysis
not previously considered. See 50 CFR
424.14(h)(1)(iii).
At the 90-day finding stage, we do not
conduct additional research, and we do
not solicit information from parties
outside the agency to help us in
evaluating the petition. We will accept
the petitioners’ sources and
characterizations of the information
presented if they appear to be based on
accepted scientific principles, unless we
have specific information in our files
that indicates the petition’s information
is incorrect, unreliable, obsolete, or
otherwise irrelevant to the requested
action. Information that is susceptible to
more than one interpretation or that is
contradicted by other available
information will not be dismissed at the
90-day finding stage, so long as it is
reliable and a reasonable person
conducting an impartial scientific
review would conclude it supports the
petitioners’ assertions. In other words,
conclusive information indicating the
species may meet the ESA’s
requirements for listing is not required
to make a positive 90-day finding. We
will not conclude that a lack of specific
information alone necessitates a
negative 90-day finding if a reasonable
person conducting an impartial
scientific review would conclude that
the unknown information itself suggests
the species may be at risk of extinction
presently or within the foreseeable
future.
To make a 90-day finding on a
petition to list a species, we first
evaluate whether the information
presented in the petition, in light of the
information readily available in our
files, indicates that the petitioned entity
constitutes a ‘‘species’’ eligible for
listing under the ESA. Next, if we
conclude the petition presents
substantial scientific or commercial
information suggesting that the
petitioned entity may constitute a
E:\FR\FM\02DEP1.SGM
02DEP1
lotter on DSK11XQN23PROD with PROPOSALS1
68454
Federal Register / Vol. 86, No. 229 / Thursday, December 2, 2021 / Proposed Rules
‘‘species,’’ we evaluate whether the
information indicates that the species
may face an extinction risk such that
listing, delisting, or reclassification may
be warranted; this may be indicated in
information expressly discussing the
species’ status and trends, or in
information describing impacts and
threats to the species. We evaluate
whether the petition presents any
information on specific demographic
factors pertinent to evaluating
extinction risk for the species (e.g.,
population abundance and trends,
productivity, spatial structure, age
structure, sex ratio, diversity, current
and historical range, habitat integrity or
fragmentation), and the potential
contribution of identified demographic
risks to extinction risk for the species.
We then evaluate whether the petition
presents information suggesting
potential links between these
demographic risks and the causative
impacts and threats identified in section
4(a)(1) of the ESA.
Information presented on impacts or
threats should be specific to the species
and should reasonably suggest that one
or more of these factors may be
operative threats that act or have acted
on the species to the point that it may
warrant protection under the ESA.
Broad statements about generalized
threats to the species, or identification
of factors that could negatively impact
a species, do not constitute substantial
information indicating that listing may
be warranted. We look for information
indicating that not only is the particular
species exposed to a factor, but that the
species may be responding in a negative
fashion; then we assess the potential
significance of that negative response.
Many petitions identify risk
classifications made by
nongovernmental organizations, such as
the International Union on the
Conservation of Nature (IUCN), the
American Fisheries Society, or
NatureServe, as evidence of extinction
risk for a species. Risk classifications by
such organizations or made under other
Federal or state statutes may be
informative, but such classification
alone may not provide the rationale for
a positive 90-day finding under the
ESA. For example, as explained by
NatureServe, their assessments of a
species’ conservation status do ‘‘not
constitute a recommendation by
NatureServe for listing under the U.S.
ESA’’ because NatureServe assessments
‘‘have different criteria, evidence
requirements, purposes, and taxonomic
coverage than official lists of
endangered and threatened species’’,
and therefore these two types of lists
should not be expected to ‘‘coincide’’
VerDate Sep<11>2014
16:31 Dec 01, 2021
Jkt 256001
(https://explorer.natureserve.org/
AboutTheData/DataTypes/Conservation
StatusCategories). Additionally, species
classifications under IUCN and the ESA
are not equivalent; data standards,
criteria used to evaluate species, and
treatment of uncertainty are also not
necessarily the same. Thus, when a
petition cites such classifications, we
will evaluate the source of information
that the classification is based upon in
light of the standards on extinction risk
and impacts or threats discussed above.
Taxonomy
The petition presents information on
the taxonomy of the species, including
information and references regarding
the earliest description of the species
primarily on differences in the skull
compared to other humpback dolphins
known at the time (Ku¨kenthal 1891,
Collins 2015, Collins et al. 2017). The
distinctness of the species from other
humpback dolphins has been
questioned over the years (Ross et al.
1995), but more recent genetic and
morphological work (Jefferson and Van
Waerebeek 2004, Mendez et al. 2013,
Jefferson and Rosenbaum 2014) has
clarified the taxonomy of the genus
Sousa and provides multiple lines of
evidence that S. teuszii is a species
separate from the other three of the
genus Sousa: S. plumbea (Indian Ocean
humpback dolphin), S. chinensis (IndoPacific humpback dolphin), and S.
sahulensis (Australian humpback
dolphin) (Jefferson and Rosenbaum
2014). Thus, we conclude that the
petitioned entity, S. teuszii, constitutes
a taxonomically distinct species eligible
for listing under the ESA.
Distribution, Habitat, and Life History
The Atlantic humpback dolphin is
described as an obligate shallow water
dolphin and is endemic to the tropical
and subtropical eastern Atlantic
nearshore waters (<30 m) of western
Africa, ranging from Western Sahara to
Angola (Collins 2015, Weir and Collins
2015). This species is the only member
of the genus that occurs outside of the
Indo-Pacific region (Mendez et al. 2013,
Jefferson and Rosenbaum 2014, Collins
2015). Although each of the 19 countries
between (and including) Western Sahara
and Angola are presumed to be part of
the species’ natural range, the current
distribution is uncertain given
incomplete research coverage, including
an absence of survey effort in many
areas. Currently, there are only
confirmed records of occurrence in the
following 13 countries: Western Sahara,
Mauritania, Senegal, The Gambia,
Guinea-Bissau, Guinea, Togo, Benin,
Nigeria, Cameroon, Gabon, Republic of
PO 00000
Frm 00010
Fmt 4702
Sfmt 4702
the Congo, and Angola (Minton et al.
2020). The 6 countries with no
confirmed records (Sierra Leone,
Liberia, Coˆte d’Ivoire, Ghana, mainland
Equatorial Guinea, and the Democratic
Republic of the Congo) are poorly
studied and have received little or no
systematic cetacean or coastal research
(Collins et al. 2017). Work conducted in
Ghana by Van Waerebeek et al. (2009)
confirms the absence of S. teuszii
records, which may be due to localized
extirpation of the species in Ghanaian
waters. The species is not known to
occur around any of the larger offshore
islands of the Gulf of Guinea, including
Sao Tome and Principe or Bioko
(Fernando Po´o) and Annabon (Pagalu)
(Van Waerebeek et al. 2004). Eleven
putative ‘‘management stocks’’ (i.e
subpopulations) of S. teuszii have been
recognized based on localities or
countries where the species has been
recorded and evidence of gaps in the
species’ range (Van Waerebeek et al.
2004, Collins 2015, Collins et al. 2017).
Migrations and movements are poorly
understood largely because tagging work
has never been done on this species
(Collins et al. 2017). Localized
movements have been linked to feeding
opportunities facilitated by tides, where
Atlantic humpback dolphins feed
primarily on coastal, estuarine, and reefassociated fishes (Busnel 1973, Collins
2015, Collins et al. 2017). Large-scale
migrations are rarely documented but
have been inferred using local accounts
and sightings from fishermen, and
smaller-scale shifts in abundance have
been postulated (based on fragmentary
evidence) (Collins 2015, Collins et al.
2017). However, movements across
national boundaries have been
documented, and records elsewhere
suggest transboundary movements
(Collins 2015, Collins et al. 2017).
The Atlantic humpback dolphin has
specific habitat requirements, which
could limit its resilience and ability to
escape environmental and
anthropogenic stressors (Collins 2015).
It occurs exclusively in shallow (<30 m)
depths, in warm nearshore waters
(average sea surface temperatures
ranging from 15.8° to 31.8° Celsius), and
in dynamic habitats strongly influenced
by tidal patterns (e.g., sandbanks, deltas,
estuaries, and mangrove systems)
(Collins 2015, Weir and Collins 2015,
Taylor et al. 2020).
Data and information regarding life
history and reproduction parameters are
almost nonexistent for this species. An
estimated generation length of 18.4
years is given for the Atlantic humpback
dolphin, although a figure closer to 25
years is provided for the Indo-Pacific
humpback dolphin (S. chinensis) and
E:\FR\FM\02DEP1.SGM
02DEP1
Federal Register / Vol. 86, No. 229 / Thursday, December 2, 2021 / Proposed Rules
lotter on DSK11XQN23PROD with PROPOSALS1
Indian Ocean humpback dolphin (S.
plumbea) (Collins 2015, Collins et al.
2017). Births are thought to occur in
March and April, based upon
observations of juveniles (Van
Waerebeek et al. 2004, Collins 2015).
The species is suspected to be sexually
dimorphic (males larger at maturity and
with a more prominent dorsal hump),
but the current sample size (∼20
individuals) is too small to assess this
statistically (Jefferson and Rosenbaum
2014).
Abundance and Population Trends
Abundance data are very limited for
S. teuszii and robust abundance
estimates are lacking for most stocks.
However, approximate, general
estimates have been made for the 11
recognized stocks (which are subjective
and based on the knowledge of a limited
number of researchers) and range from
the tens to low hundreds of individuals
per stock (Collins 2015, Collins et al.
2017).
Comprehensive reviews conducted by
Collins (2015) and Collins et al. (2017)
on all available S. teuszii population
biology data, reinforce general
inferences of small total population size.
These reviews concluded that the
species probably includes fewer than
3,000 individuals (Collins 2015, Collins
et al. 2017). If it is assumed that 50
percent of these are mature individuals,
then the number of mature individuals
in the total population would be no
more than 1,500 (Collins et al. 2017,
Brownell et al. 2019).
Because robust abundance estimates
for this species are lacking, there are no
quantitative assessments of population
trends and status. However, the
evidence of recent work in some areas
and a consensus of expert opinions
indicate that most stocks of S. teuszii are
small and that all stocks have
experienced significant declines in
recent decades (Collins 2015, Collins et
al. 2017). Limited research effort for
each putative S. teuszii stock has either
identified significant mortality or
yielded strong evidence to infer it (Van
Waerebeek et al. 2004, Collins 2015,
Collins et al. 2017). According to
Collins (2015) and Collins et al. (2017),
artisanal fishing bycatch and directed
takes are the principal causes of these
declines, although these authors also
suggest that habitat loss is likely a
contributing factor as well. Reported
dolphin bycatch has been coupled with
observed or suspected declines of S.
teuszii in Guinea-Bissau, which together
with neighboring Guinea, is believed to
host the largest population of the
species (Collins 2015, Collins et al.
2017).
VerDate Sep<11>2014
16:31 Dec 01, 2021
Jkt 256001
In summary, while data on abundance
and population trends are largely
absent, the information presented in the
petition indicates that the species
consists of small, fragmented stocks,
and may be declining across its range.
Analysis of ESA Section 4(a)(1) Factors
The petition asserts that S. teuszii is
threatened by four of the five ESA
section 4(a)(1) factors: The present
destruction or modification of its habitat
due to pollution and development,
overutilization for commercial purposes
via fisheries bycatch, inadequacy of
existing regulatory mechanisms, and
manmade factors affecting its continued
existence, including fisheries bycatch
and prey depletion, deliberate capture,
coastal development, and anthropogenic
noise. Information in the petition and
readily available in our files indicates
that the primary threat facing the
species is fisheries bycatch. Therefore,
we focus our discussion below on the
evidence of this particular threat.
However, we note that in the status
review for this species, we will evaluate
all ESA section 4(a)(1) factors to
determine whether any one or a
combination of these factors are causing
declines in the species or are likely to
substantially negatively affect the
species within the foreseeable future to
such a point that the Atlantic humpback
dolphin is at risk of extinction or likely
to become so in the foreseeable future.
Overutilization for Commercial,
Recreational, Scientific, or Educational
Purposes
According to information cited in the
petition and readily available in our
files, the greatest threat to the Atlantic
humpback dolphin is fisheries bycatch.
Bycatch of Atlantic humpback dolphins
in artisanal gillnets is considered
widespread throughout the species’
range (Collins 2015, Collins et al. 2017,
Jefferson 2019). This threat has been
identified or suspected throughout
much of the species’ range and for as
long as the species has been studied
(Van Waerebeek et al. 2004, Collins
2015, Collins et al. 2017, Brownell et al.
2019, Jefferson 2019).
Work in Conkouati Douli National
Park (Republic of the Congo) provides
some indication of the potential scale of
S. teuszii bycatch and substantial
bycatch risk for the species (Collins
2015). An intensive monitoring,
enforcement, and cooperative
(incentivized) reporting program
identified 19 dolphins that were caught
as bycatch over 5 years across all
artisanal landing sites (n = 14) along a
60-km stretch of protected beach
(Collins 2015). Out of the 19 dolphins
PO 00000
Frm 00011
Fmt 4702
Sfmt 4702
68455
caught as bycatch, 10 were identified as
S. teuszii, and the testimony of
fishermen showed that all were caught
in gillnets less than 1 kilometer from
shore (Collins 2015, Collins et al. 2017).
While mortality figures have been
reported for other areas including Banc
d’Arguin and the Saloum Delta, the
monitoring of bycatch in these
aforementioned areas is either nonexistent or limited to very few landing
sites (Van Waerebeek et al. 2004, Collins
2015, Collins et al. 2017). Thus, the
reported bycatch figures are likely to be
underestimates of the true level of
mortality.
Although there is no evidence of any
organized, directed fisheries for S.
teuszii, there is a concern that bycatch
can develop into ‘‘directed
entanglement’’ or ‘‘non-target-deliberate
acquisition’’, where fishermen may
intentionally try to catch Atlantic
humpback dolphins in gillnets
originally intended for other species
(especially if there is a market for such
catches) (Clapham and Van Waerebeek
2007, Collins 2015). While the scale of
this practice is unknown, the use of
cetaceans for human consumption has
been documented in West Africa which
provides a potential market for cetacean
products and reflects general fisheries
declines (Van Waerebeek et al. 2004,
Clapham and Van Waerebeek 2007,
Collins 2015, Jefferson 2019). Clapham
and Van Waerebeek (2007) noted that
market surveys conducted in West
African coastal nations indicated that
the sale and consumption of cetacean
and sea turtle products is common.
Additionally, these sales contribute to
the economic viability of gillnet
fisheries in Ghana, which includes
killing of live entangled animals, and
using dolphin meat as bait (Van
Waerebeek et al. 2004, Clapham and
Van Waerebeek 2007, Collins 2015).
However, it is important to note that
because captures may be concealed,
given legal prohibitions, acquiring
reliable data from surveys remains a
challenge in some areas (Van Waerebeek
et al. 2004, Collins 2015, Collins et al.
2017).
The extensive spread of migrant
fishermen across western Africa over
the past few decades is a related
concern, which can augment existing
fisheries bycatch issues in areas (or even
bring these issues to areas where they
did not previously exist) (Collins 2015,
Collins et al. 2017). Migrant fishermen
(including those who move within
countries) may not abide by local
regulations, injunctions, taboos, or laws,
and are often better equipped and more
aggressive in their exploitation of local
resources (Collins 2015). They have
E:\FR\FM\02DEP1.SGM
02DEP1
68456
Federal Register / Vol. 86, No. 229 / Thursday, December 2, 2021 / Proposed Rules
lotter on DSK11XQN23PROD with PROPOSALS1
been implicated in the captures of S.
teuszii in areas adjacent to the Banc
d’Arguin (Collins 2015). Additionally,
Collins (2015) notes that migrant
fishermen from Senegal, Guinea
(Conakry), and Sierra Leone have been
found exploiting waters of GuineaBissau, which does not have a strong
fishing tradition, and thus the artisanal
fishing tradition is limited in this
country’s waters. However, captures of
dolphins and manatees, along with
declines of nesting sea turtles have been
reported, thus raising concern for S.
teuszii (Collins 2015, Collins et al.
2017).
In general, declines in other target fish
species may affect the Atlantic
humpback dolphin population by
increasing artisanal fishing effort and
pressure, leading to increased bycatch
risk for the species (Collins 2015,
Collins et al. 2017). Industrial fisheries
compound this issue by competing for
increasingly scant resources, as well as
fishing in zones set aside for artisanal
fishermen and areas where dolphins are
known to occur (Collins 2015, Collins et
al. 2017). For example, Collins (2015)
notes that trawlers fishing illegally
within Conkouati Douli National Park
(Republic of the Congo) impel artisanal
fishermen to set their nets closer to
shore (for fear of losing their nets in
trawls), raising bycatch risks for coastal
species, like S. teuszii.
Overall, the information presented in
the petition and briefly summarized
here regarding the Atlantic humpback
dolphin’s specific habitat requirements,
low estimated abundance, fragmented
distribution, and the immediate threat
of fisheries bycatch and potential
targeted harvest lead us to conclude that
listing the species as threatened or
endangered may be warranted.
Petition Finding
After reviewing the petition, the
literature cited in the petition, and other
information readily available in our
files, we find that listing S. teuszii as a
threatened or endangered species may
be warranted. Therefore, in accordance
with section 4(b)(3)(A) of the ESA and
NMFS’ implementing regulations (50
CFR 424.14(h)(2)), we will commence a
status review of this species. During the
status review, we will determine
whether S. teuszii is in danger of
extinction (endangered) or likely to
become so in the foreseeable future
(threatened) throughout all or a
significant portion of its range. As
required by section 4(b)(3)(B) of the
ESA, within 12 months of the receipt of
the petition (September 8, 2021), we
will make a finding as to whether listing
the Atlantic humpback dolphin as an
VerDate Sep<11>2014
16:31 Dec 01, 2021
Jkt 256001
endangered or threatened species is
warranted. If listing is warranted, we
will publish a proposed rule and solicit
public comments before developing and
publishing a final rule.
Information Solicited
To ensure that the status review is
based on the best available scientific
and commercial data, we are soliciting
comments and information from
interested parties on the status of the
Atlantic humpback dolphin.
Specifically, we are soliciting
information in the following areas:
(1) Historical and current abundance
and population trends of S. teuszii
throughout its range;
(2) Historical and current distribution
and population structure of S. teuszii;
(3) Information on S. teuszii site
fidelity, population connectivity, and
movements within and between
populations (including estimates of
genetic diversity across and within
populations);
(4) Historical and current condition of
S. teuszii habitat;
(5) Information on S. teuszii life
history and reproductive parameters;
(6) Data on S. teuszii diet and prey;
(7) Information and data on common
S. teuszii disease(s) and/or contaminant
exposure;
(8) Historical and current data on S.
teuszii catch, bycatch, and retention in
industrial, commercial, artisanal, and
recreational fisheries throughout its
range;
(9) Past, current, and potential threats,
including any current or planned
activities that may adversely impact S.
teuszii over the short-term or long-term;
(10) Data on trade of S. teuszii
products; and
(11) Management, regulatory, or
conservation programs for S. teuszii,
including mitigation measures related to
any known or potential threats to the
species throughout its range.
We request that all data and
information be accompanied by
supporting documentation such as
maps, bibliographic references, or
reprints of pertinent publications.
Please send any comments in
accordance with the instructions
provided in the ADDRESSES section
above. We will base our findings on a
review of the best available scientific
and commercial data, including relevant
information received during the public
comment period.
References Cited
A complete list of all references cited
herein is available upon request (See
FOR FURTHER INFORMATION CONTACT).
PO 00000
Frm 00012
Fmt 4702
Sfmt 4702
Authority: The authority for this action is
the Endangered Species Act of 1973, as
amended (16 U.S.C. 1531 et seq.).
Dated: November 29, 2021.
Samuel D. Rauch, III,
Deputy Assistant Administrator for
Regulatory Programs, National Marine
Fisheries Service.
[FR Doc. 2021–26225 Filed 12–1–21; 8:45 am]
BILLING CODE 3510–22–P
DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric
Administration
50 CFR Part 648
[Docket No. 211122–0241;RTID 0648–XX073]
Fisheries of the Northeastern United
States; Atlantic Bluefish Fishery; 2022
and Projected 2023 Specifications
National Marine Fisheries
Service (NMFS), National Oceanic and
Atmospheric Administration (NOAA),
Commerce.
ACTION: Proposed rule; request for
comments.
AGENCY:
NMFS proposes Atlantic
bluefish specifications for the 2022
fishing year, and projected
specifications for fishing year 2023, as
recommended by the Mid-Atlantic
Fishery Management Council. This
action is necessary to establish
allowable harvest levels to prevent
overfishing while enabling optimum
yield, using the best scientific
information available. This rule also
informs the public of the proposed
fishery specifications and provides an
opportunity for comment.
DATES: Comments must be received by
December 17, 2021.
ADDRESSES: You may submit comments
on this document, identified by NOAA–
NMFS–2021–0107, by the following
method:
Electronic Submission: Submit all
electronic public comments via the
Federal e-Rulemaking Portal.
1. Go to https://www.regulations.gov,
and enter ‘‘NOAA–NMFS–2021–0107’’
in the Search box;
2. Click the ‘‘Comment’’ icon,
complete the required fields; and
3. Enter or attach your comments.
Instructions: Comments sent by any
other method, to any other address or
individual, or received after the end of
the comment period, may not be
considered by NMFS. All comments
received are a part of the public record
and will generally be posted for public
viewing on www.regulations.gov
without change. All personal identifying
SUMMARY:
E:\FR\FM\02DEP1.SGM
02DEP1
Agencies
[Federal Register Volume 86, Number 229 (Thursday, December 2, 2021)]
[Proposed Rules]
[Pages 68452-68456]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-26225]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
50 CFR Parts 223 and 224
[Docket No. 211129-0246; RTID 0648-XR118]
Endangered and Threatened Wildlife; 90-Day Finding on a Petition
To List the Atlantic Humpback Dolphin as Threatened or Endangered Under
the Endangered Species Act
AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and
Atmospheric Administration (NOAA), Commerce.
ACTION: 90-Day petition finding, request for information, and
initiation of status review.
-----------------------------------------------------------------------
SUMMARY: We, NMFS, announce a 90-day finding on a petition to list the
Atlantic humpback dolphin (Sousa teuszii) as threatened or endangered
under the Endangered Species Act (ESA). We find that the petition
presents substantial scientific or commercial information indicating
that the petitioned action may be warranted. Therefore, we are
initiating a status review of the species to determine whether listing
under the ESA is warranted. To ensure this status review is
comprehensive, we are soliciting scientific and commercial information
regarding this species.
DATES: Scientific and commercial information pertinent to the
petitioned action must be received by January 31, 2022.
ADDRESSES: You may submit comments on this document, identified by
NOAA-NMFS-2021-0110 by the following method:
Electronic Submissions: Submit all electronic public
comments via the Federal eRulemaking Portal. Go to https://www.regulations.gov and enter NOAA-NMFS-2021-0110 in the Search box.
Click on the ``Comment'' icon, complete the required fields, and enter
or attach your comments.
Instructions: Comments sent by any other method, to any other
address or individual, or received after the end of the comment period,
may not be considered by NMFS. All comments received are a part of the
public record and will generally be posted for public viewing on
www.regulations.gov without change. All personal identifying
information (e.g., name, address, etc.), confidential business
information, or otherwise sensitive information submitted voluntarily
by the sender will be publicly accessible. NMFS will accept anonymous
comments (enter ``N/A'' in the required fields if you wish to remain
anonymous).
Interested persons may obtain a copy of the petition online at the
NMFS website: https://www.fisheries.noaa.gov/national/endangered-species-conservation/petitions-awaiting-90-day-findings.
FOR FURTHER INFORMATION CONTACT: Heather Austin, NMFS Office of
Protected Resources, (301) 427-8422, [email protected].
SUPPLEMENTARY INFORMATION:
Background
On September 8, 2021, we received a petition from the Animal
Welfare Institute, the Center for Biological Diversity, and VIVA
Vaquita to list the Atlantic humpback dolphin (Sousa teuszii) as a
threatened or endangered species under the ESA. The petition asserts
that Sousa teuszii is threatened by four of the five ESA section
4(a)(1) factors: (1) The present destruction or modification of its
habitat; (2) overutilization for commercial purposes; (3) inadequacy of
existing regulatory mechanisms; and (4) manmade factors affecting its
continued existence. The petition is available online (see ADDRESSES).
ESA Statutory, Regulatory, and Policy Provisions and Evaluation
Framework
Section 4(b)(3)(A) of the ESA of 1973, as amended (16 U.S.C. 1531
et seq.), requires, to the maximum extent practicable, that within 90
days of receipt of a petition to list a species as threatened or
endangered, the Secretary of Commerce make a finding on whether that
petition presents substantial scientific or commercial information
indicating that the petitioned action may be warranted, and to promptly
publish such finding in the Federal Register (16 U.S.C. 1533(b)(3)(A)).
When it is found that substantial scientific or commercial information
in a petition indicates the petitioned action may be warranted (a
``positive 90-day finding''), we are required to promptly commence a
review of the status of the species concerned during which we will
conduct a comprehensive review of the best available scientific and
commercial information. In such cases, we conclude
[[Page 68453]]
the review with a finding as to whether, in fact, the petitioned action
is warranted within 12 months of receipt of the petition. Because the
finding at the 12-month stage is based on a more thorough review of the
available information, as compared to the narrow scope of review at the
90-day stage, a ``may be warranted'' finding does not prejudge the
outcome of the status review.
Under the ESA, a listing determination may address a species, which
is defined to also include subspecies and, for any vertebrate species,
any distinct population segment (DPS) that interbreeds when mature (16
U.S.C. 1532(16)). A joint NMFS-U.S. Fish and Wildlife Service (USFWS)
(jointly, ``the Services'') policy clarifies the agencies'
interpretation of the phrase ``distinct population segment'' for the
purposes of listing, delisting, and reclassifying a species under the
ESA (61 FR 4722; February 7, 1996). A species, subspecies, or DPS is
``endangered'' if it is in danger of extinction throughout all or a
significant portion of its range, and ``threatened'' if it is likely to
become endangered within the foreseeable future throughout all or a
significant portion of its range (ESA sections 3(6) and 3(20),
respectively, 16 U.S.C. 1532(6) and (20)). Pursuant to the ESA and our
implementing regulations, we determine whether species are threatened
or endangered based on any one or a combination of the following five
section 4(a)(1) factors: (1) The present or threatened destruction,
modification, or curtailment of habitat or range; (2) overutilization
for commercial, recreational, scientific, or educational purposes; (3)
disease or predation; (4) inadequacy of existing regulatory mechanisms
to address identified threats; (5) or any other natural or manmade
factors affecting the species' existence (16 U.S.C. 1533(a)(1), 50 CFR
424.11(c)).
ESA-implementing regulations issued jointly by NMFS and USFWS (50
CFR 424.14(h)(1)(i)) define ``substantial scientific or commercial
information'' in the context of reviewing a petition to list, delist,
or reclassify a species as ``credible scientific or commercial
information in support of the petition's claims such that a reasonable
person conducting an impartial scientific review would conclude that
the action proposed in the petition may be warranted.'' Conclusions
drawn in the petition without the support of credible scientific or
commercial information will not be considered ``substantial
information.'' In reaching the initial (90-day) finding on the
petition, we will consider the information described in sections 50 CFR
424.14(c), (d), and (g) (if applicable).
Our determination as to whether the petition provides substantial
scientific or commercial information indicating that the petitioned
action may be warranted will depend in part on the degree to which the
petition includes the following types of information: (1) Information
on current population status and trends and estimates of current
population sizes and distributions, both in captivity and the wild, if
available; (2) identification of the factors under section 4(a)(1) of
the ESA that may affect the species and where these factors are acting
upon the species; (3) whether and to what extent any or all of the
factors alone or in combination identified in section 4(a)(1) of the
ESA may cause the species to be an endangered species or threatened
species (i.e, the species is currently in danger of extinction or is
likely to become so within the foreseeable future), and, if so, how
high in magnitude and how imminent the threats to the species and its
habitat are; (4) information on adequacy of regulatory protections and
effectiveness of conservation activities by States as well as other
parties, that have been initiated or that are ongoing, that may protect
the species or its habitat; and (5) a complete, balanced representation
of the relevant facts, including information that may contradict claims
in the petition. See 50 CFR 424.14(d).
If the petitioner provides supplemental information before the
initial finding is made and states that it is part of the petition, the
new information, along with the previously submitted information, is
treated as a new petition that supersedes the original petition, and
the statutory timeframes will begin when such supplemental information
is received. See 50 CFR 424.14(g).
We may also consider information readily available at the time the
determination is made (50 CFR 424.14(h)(1)(ii)). We are not required to
consider any supporting materials cited by the petitioner if the
petitioner does not provide electronic or hard copies, to the extent
permitted by U.S. copyright law, or appropriate excerpts or quotations
from those materials (e.g., publications, maps, reports, letters from
authorities). See 50 CFR 424.14(c)(6).
The ``substantial scientific or commercial information'' standard
must be applied in light of any prior reviews or findings we have made
on the listing status of the species that is the subject of the
petition (50 CFR 424.14(h)(1)(iii)). Where we have already conducted a
finding on, or review of, the listing status of that species (whether
in response to a petition or on our own initiative), we will evaluate
any petition received thereafter seeking to list, delist, or reclassify
that species to determine whether a reasonable person conducting an
impartial scientific review would conclude that the action proposed in
the petition may be warranted despite the previous review or finding.
Where the prior review resulted in a final agency action--such as a
final listing determination, 90-day not-substantial finding, or 12-
month not-warranted finding--a petition will generally not be
considered to present substantial scientific and commercial information
indicating that the petitioned action may be warranted unless the
petition provides new information or analysis not previously
considered. See 50 CFR 424.14(h)(1)(iii).
At the 90-day finding stage, we do not conduct additional research,
and we do not solicit information from parties outside the agency to
help us in evaluating the petition. We will accept the petitioners'
sources and characterizations of the information presented if they
appear to be based on accepted scientific principles, unless we have
specific information in our files that indicates the petition's
information is incorrect, unreliable, obsolete, or otherwise irrelevant
to the requested action. Information that is susceptible to more than
one interpretation or that is contradicted by other available
information will not be dismissed at the 90-day finding stage, so long
as it is reliable and a reasonable person conducting an impartial
scientific review would conclude it supports the petitioners'
assertions. In other words, conclusive information indicating the
species may meet the ESA's requirements for listing is not required to
make a positive 90-day finding. We will not conclude that a lack of
specific information alone necessitates a negative 90-day finding if a
reasonable person conducting an impartial scientific review would
conclude that the unknown information itself suggests the species may
be at risk of extinction presently or within the foreseeable future.
To make a 90-day finding on a petition to list a species, we first
evaluate whether the information presented in the petition, in light of
the information readily available in our files, indicates that the
petitioned entity constitutes a ``species'' eligible for listing under
the ESA. Next, if we conclude the petition presents substantial
scientific or commercial information suggesting that the petitioned
entity may constitute a
[[Page 68454]]
``species,'' we evaluate whether the information indicates that the
species may face an extinction risk such that listing, delisting, or
reclassification may be warranted; this may be indicated in information
expressly discussing the species' status and trends, or in information
describing impacts and threats to the species. We evaluate whether the
petition presents any information on specific demographic factors
pertinent to evaluating extinction risk for the species (e.g.,
population abundance and trends, productivity, spatial structure, age
structure, sex ratio, diversity, current and historical range, habitat
integrity or fragmentation), and the potential contribution of
identified demographic risks to extinction risk for the species. We
then evaluate whether the petition presents information suggesting
potential links between these demographic risks and the causative
impacts and threats identified in section 4(a)(1) of the ESA.
Information presented on impacts or threats should be specific to
the species and should reasonably suggest that one or more of these
factors may be operative threats that act or have acted on the species
to the point that it may warrant protection under the ESA. Broad
statements about generalized threats to the species, or identification
of factors that could negatively impact a species, do not constitute
substantial information indicating that listing may be warranted. We
look for information indicating that not only is the particular species
exposed to a factor, but that the species may be responding in a
negative fashion; then we assess the potential significance of that
negative response.
Many petitions identify risk classifications made by
nongovernmental organizations, such as the International Union on the
Conservation of Nature (IUCN), the American Fisheries Society, or
NatureServe, as evidence of extinction risk for a species. Risk
classifications by such organizations or made under other Federal or
state statutes may be informative, but such classification alone may
not provide the rationale for a positive 90-day finding under the ESA.
For example, as explained by NatureServe, their assessments of a
species' conservation status do ``not constitute a recommendation by
NatureServe for listing under the U.S. ESA'' because NatureServe
assessments ``have different criteria, evidence requirements, purposes,
and taxonomic coverage than official lists of endangered and threatened
species'', and therefore these two types of lists should not be
expected to ``coincide'' (https://explorer.natureserve.org/AboutTheData/DataTypes/ConservationStatusCategories). Additionally,
species classifications under IUCN and the ESA are not equivalent; data
standards, criteria used to evaluate species, and treatment of
uncertainty are also not necessarily the same. Thus, when a petition
cites such classifications, we will evaluate the source of information
that the classification is based upon in light of the standards on
extinction risk and impacts or threats discussed above.
Taxonomy
The petition presents information on the taxonomy of the species,
including information and references regarding the earliest description
of the species primarily on differences in the skull compared to other
humpback dolphins known at the time (K[uuml]kenthal 1891, Collins 2015,
Collins et al. 2017). The distinctness of the species from other
humpback dolphins has been questioned over the years (Ross et al.
1995), but more recent genetic and morphological work (Jefferson and
Van Waerebeek 2004, Mendez et al. 2013, Jefferson and Rosenbaum 2014)
has clarified the taxonomy of the genus Sousa and provides multiple
lines of evidence that S. teuszii is a species separate from the other
three of the genus Sousa: S. plumbea (Indian Ocean humpback dolphin),
S. chinensis (Indo-Pacific humpback dolphin), and S. sahulensis
(Australian humpback dolphin) (Jefferson and Rosenbaum 2014). Thus, we
conclude that the petitioned entity, S. teuszii, constitutes a
taxonomically distinct species eligible for listing under the ESA.
Distribution, Habitat, and Life History
The Atlantic humpback dolphin is described as an obligate shallow
water dolphin and is endemic to the tropical and subtropical eastern
Atlantic nearshore waters (<30 m) of western Africa, ranging from
Western Sahara to Angola (Collins 2015, Weir and Collins 2015). This
species is the only member of the genus that occurs outside of the
Indo-Pacific region (Mendez et al. 2013, Jefferson and Rosenbaum 2014,
Collins 2015). Although each of the 19 countries between (and
including) Western Sahara and Angola are presumed to be part of the
species' natural range, the current distribution is uncertain given
incomplete research coverage, including an absence of survey effort in
many areas. Currently, there are only confirmed records of occurrence
in the following 13 countries: Western Sahara, Mauritania, Senegal, The
Gambia, Guinea-Bissau, Guinea, Togo, Benin, Nigeria, Cameroon, Gabon,
Republic of the Congo, and Angola (Minton et al. 2020). The 6 countries
with no confirmed records (Sierra Leone, Liberia, C[ocirc]te d'Ivoire,
Ghana, mainland Equatorial Guinea, and the Democratic Republic of the
Congo) are poorly studied and have received little or no systematic
cetacean or coastal research (Collins et al. 2017). Work conducted in
Ghana by Van Waerebeek et al. (2009) confirms the absence of S. teuszii
records, which may be due to localized extirpation of the species in
Ghanaian waters. The species is not known to occur around any of the
larger offshore islands of the Gulf of Guinea, including Sao Tome and
Principe or Bioko (Fernando P[oacute]o) and Annabon (Pagalu) (Van
Waerebeek et al. 2004). Eleven putative ``management stocks'' (i.e
subpopulations) of S. teuszii have been recognized based on localities
or countries where the species has been recorded and evidence of gaps
in the species' range (Van Waerebeek et al. 2004, Collins 2015, Collins
et al. 2017).
Migrations and movements are poorly understood largely because
tagging work has never been done on this species (Collins et al. 2017).
Localized movements have been linked to feeding opportunities
facilitated by tides, where Atlantic humpback dolphins feed primarily
on coastal, estuarine, and reef-associated fishes (Busnel 1973, Collins
2015, Collins et al. 2017). Large-scale migrations are rarely
documented but have been inferred using local accounts and sightings
from fishermen, and smaller-scale shifts in abundance have been
postulated (based on fragmentary evidence) (Collins 2015, Collins et
al. 2017). However, movements across national boundaries have been
documented, and records elsewhere suggest transboundary movements
(Collins 2015, Collins et al. 2017).
The Atlantic humpback dolphin has specific habitat requirements,
which could limit its resilience and ability to escape environmental
and anthropogenic stressors (Collins 2015). It occurs exclusively in
shallow (<30 m) depths, in warm nearshore waters (average sea surface
temperatures ranging from 15.8[deg] to 31.8[deg] Celsius), and in
dynamic habitats strongly influenced by tidal patterns (e.g.,
sandbanks, deltas, estuaries, and mangrove systems) (Collins 2015, Weir
and Collins 2015, Taylor et al. 2020).
Data and information regarding life history and reproduction
parameters are almost nonexistent for this species. An estimated
generation length of 18.4 years is given for the Atlantic humpback
dolphin, although a figure closer to 25 years is provided for the Indo-
Pacific humpback dolphin (S. chinensis) and
[[Page 68455]]
Indian Ocean humpback dolphin (S. plumbea) (Collins 2015, Collins et
al. 2017). Births are thought to occur in March and April, based upon
observations of juveniles (Van Waerebeek et al. 2004, Collins 2015).
The species is suspected to be sexually dimorphic (males larger at
maturity and with a more prominent dorsal hump), but the current sample
size (~20 individuals) is too small to assess this statistically
(Jefferson and Rosenbaum 2014).
Abundance and Population Trends
Abundance data are very limited for S. teuszii and robust abundance
estimates are lacking for most stocks. However, approximate, general
estimates have been made for the 11 recognized stocks (which are
subjective and based on the knowledge of a limited number of
researchers) and range from the tens to low hundreds of individuals per
stock (Collins 2015, Collins et al. 2017).
Comprehensive reviews conducted by Collins (2015) and Collins et
al. (2017) on all available S. teuszii population biology data,
reinforce general inferences of small total population size. These
reviews concluded that the species probably includes fewer than 3,000
individuals (Collins 2015, Collins et al. 2017). If it is assumed that
50 percent of these are mature individuals, then the number of mature
individuals in the total population would be no more than 1,500
(Collins et al. 2017, Brownell et al. 2019).
Because robust abundance estimates for this species are lacking,
there are no quantitative assessments of population trends and status.
However, the evidence of recent work in some areas and a consensus of
expert opinions indicate that most stocks of S. teuszii are small and
that all stocks have experienced significant declines in recent decades
(Collins 2015, Collins et al. 2017). Limited research effort for each
putative S. teuszii stock has either identified significant mortality
or yielded strong evidence to infer it (Van Waerebeek et al. 2004,
Collins 2015, Collins et al. 2017). According to Collins (2015) and
Collins et al. (2017), artisanal fishing bycatch and directed takes are
the principal causes of these declines, although these authors also
suggest that habitat loss is likely a contributing factor as well.
Reported dolphin bycatch has been coupled with observed or suspected
declines of S. teuszii in Guinea-Bissau, which together with
neighboring Guinea, is believed to host the largest population of the
species (Collins 2015, Collins et al. 2017).
In summary, while data on abundance and population trends are
largely absent, the information presented in the petition indicates
that the species consists of small, fragmented stocks, and may be
declining across its range.
Analysis of ESA Section 4(a)(1) Factors
The petition asserts that S. teuszii is threatened by four of the
five ESA section 4(a)(1) factors: The present destruction or
modification of its habitat due to pollution and development,
overutilization for commercial purposes via fisheries bycatch,
inadequacy of existing regulatory mechanisms, and manmade factors
affecting its continued existence, including fisheries bycatch and prey
depletion, deliberate capture, coastal development, and anthropogenic
noise. Information in the petition and readily available in our files
indicates that the primary threat facing the species is fisheries
bycatch. Therefore, we focus our discussion below on the evidence of
this particular threat. However, we note that in the status review for
this species, we will evaluate all ESA section 4(a)(1) factors to
determine whether any one or a combination of these factors are causing
declines in the species or are likely to substantially negatively
affect the species within the foreseeable future to such a point that
the Atlantic humpback dolphin is at risk of extinction or likely to
become so in the foreseeable future.
Overutilization for Commercial, Recreational, Scientific, or
Educational Purposes
According to information cited in the petition and readily
available in our files, the greatest threat to the Atlantic humpback
dolphin is fisheries bycatch. Bycatch of Atlantic humpback dolphins in
artisanal gillnets is considered widespread throughout the species'
range (Collins 2015, Collins et al. 2017, Jefferson 2019). This threat
has been identified or suspected throughout much of the species' range
and for as long as the species has been studied (Van Waerebeek et al.
2004, Collins 2015, Collins et al. 2017, Brownell et al. 2019,
Jefferson 2019).
Work in Conkouati Douli National Park (Republic of the Congo)
provides some indication of the potential scale of S. teuszii bycatch
and substantial bycatch risk for the species (Collins 2015). An
intensive monitoring, enforcement, and cooperative (incentivized)
reporting program identified 19 dolphins that were caught as bycatch
over 5 years across all artisanal landing sites (n = 14) along a 60-km
stretch of protected beach (Collins 2015). Out of the 19 dolphins
caught as bycatch, 10 were identified as S. teuszii, and the testimony
of fishermen showed that all were caught in gillnets less than 1
kilometer from shore (Collins 2015, Collins et al. 2017). While
mortality figures have been reported for other areas including Banc
d'Arguin and the Saloum Delta, the monitoring of bycatch in these
aforementioned areas is either non-existent or limited to very few
landing sites (Van Waerebeek et al. 2004, Collins 2015, Collins et al.
2017). Thus, the reported bycatch figures are likely to be
underestimates of the true level of mortality.
Although there is no evidence of any organized, directed fisheries
for S. teuszii, there is a concern that bycatch can develop into
``directed entanglement'' or ``non-target-deliberate acquisition'',
where fishermen may intentionally try to catch Atlantic humpback
dolphins in gillnets originally intended for other species (especially
if there is a market for such catches) (Clapham and Van Waerebeek 2007,
Collins 2015). While the scale of this practice is unknown, the use of
cetaceans for human consumption has been documented in West Africa
which provides a potential market for cetacean products and reflects
general fisheries declines (Van Waerebeek et al. 2004, Clapham and Van
Waerebeek 2007, Collins 2015, Jefferson 2019). Clapham and Van
Waerebeek (2007) noted that market surveys conducted in West African
coastal nations indicated that the sale and consumption of cetacean and
sea turtle products is common. Additionally, these sales contribute to
the economic viability of gillnet fisheries in Ghana, which includes
killing of live entangled animals, and using dolphin meat as bait (Van
Waerebeek et al. 2004, Clapham and Van Waerebeek 2007, Collins 2015).
However, it is important to note that because captures may be
concealed, given legal prohibitions, acquiring reliable data from
surveys remains a challenge in some areas (Van Waerebeek et al. 2004,
Collins 2015, Collins et al. 2017).
The extensive spread of migrant fishermen across western Africa
over the past few decades is a related concern, which can augment
existing fisheries bycatch issues in areas (or even bring these issues
to areas where they did not previously exist) (Collins 2015, Collins et
al. 2017). Migrant fishermen (including those who move within
countries) may not abide by local regulations, injunctions, taboos, or
laws, and are often better equipped and more aggressive in their
exploitation of local resources (Collins 2015). They have
[[Page 68456]]
been implicated in the captures of S. teuszii in areas adjacent to the
Banc d'Arguin (Collins 2015). Additionally, Collins (2015) notes that
migrant fishermen from Senegal, Guinea (Conakry), and Sierra Leone have
been found exploiting waters of Guinea-Bissau, which does not have a
strong fishing tradition, and thus the artisanal fishing tradition is
limited in this country's waters. However, captures of dolphins and
manatees, along with declines of nesting sea turtles have been
reported, thus raising concern for S. teuszii (Collins 2015, Collins et
al. 2017).
In general, declines in other target fish species may affect the
Atlantic humpback dolphin population by increasing artisanal fishing
effort and pressure, leading to increased bycatch risk for the species
(Collins 2015, Collins et al. 2017). Industrial fisheries compound this
issue by competing for increasingly scant resources, as well as fishing
in zones set aside for artisanal fishermen and areas where dolphins are
known to occur (Collins 2015, Collins et al. 2017). For example,
Collins (2015) notes that trawlers fishing illegally within Conkouati
Douli National Park (Republic of the Congo) impel artisanal fishermen
to set their nets closer to shore (for fear of losing their nets in
trawls), raising bycatch risks for coastal species, like S. teuszii.
Overall, the information presented in the petition and briefly
summarized here regarding the Atlantic humpback dolphin's specific
habitat requirements, low estimated abundance, fragmented distribution,
and the immediate threat of fisheries bycatch and potential targeted
harvest lead us to conclude that listing the species as threatened or
endangered may be warranted.
Petition Finding
After reviewing the petition, the literature cited in the petition,
and other information readily available in our files, we find that
listing S. teuszii as a threatened or endangered species may be
warranted. Therefore, in accordance with section 4(b)(3)(A) of the ESA
and NMFS' implementing regulations (50 CFR 424.14(h)(2)), we will
commence a status review of this species. During the status review, we
will determine whether S. teuszii is in danger of extinction
(endangered) or likely to become so in the foreseeable future
(threatened) throughout all or a significant portion of its range. As
required by section 4(b)(3)(B) of the ESA, within 12 months of the
receipt of the petition (September 8, 2021), we will make a finding as
to whether listing the Atlantic humpback dolphin as an endangered or
threatened species is warranted. If listing is warranted, we will
publish a proposed rule and solicit public comments before developing
and publishing a final rule.
Information Solicited
To ensure that the status review is based on the best available
scientific and commercial data, we are soliciting comments and
information from interested parties on the status of the Atlantic
humpback dolphin. Specifically, we are soliciting information in the
following areas:
(1) Historical and current abundance and population trends of S.
teuszii throughout its range;
(2) Historical and current distribution and population structure of
S. teuszii;
(3) Information on S. teuszii site fidelity, population
connectivity, and movements within and between populations (including
estimates of genetic diversity across and within populations);
(4) Historical and current condition of S. teuszii habitat;
(5) Information on S. teuszii life history and reproductive
parameters;
(6) Data on S. teuszii diet and prey;
(7) Information and data on common S. teuszii disease(s) and/or
contaminant exposure;
(8) Historical and current data on S. teuszii catch, bycatch, and
retention in industrial, commercial, artisanal, and recreational
fisheries throughout its range;
(9) Past, current, and potential threats, including any current or
planned activities that may adversely impact S. teuszii over the short-
term or long-term;
(10) Data on trade of S. teuszii products; and
(11) Management, regulatory, or conservation programs for S.
teuszii, including mitigation measures related to any known or
potential threats to the species throughout its range.
We request that all data and information be accompanied by
supporting documentation such as maps, bibliographic references, or
reprints of pertinent publications. Please send any comments in
accordance with the instructions provided in the ADDRESSES section
above. We will base our findings on a review of the best available
scientific and commercial data, including relevant information received
during the public comment period.
References Cited
A complete list of all references cited herein is available upon
request (See FOR FURTHER INFORMATION CONTACT).
Authority: The authority for this action is the Endangered
Species Act of 1973, as amended (16 U.S.C. 1531 et seq.).
Dated: November 29, 2021.
Samuel D. Rauch, III,
Deputy Assistant Administrator for Regulatory Programs, National Marine
Fisheries Service.
[FR Doc. 2021-26225 Filed 12-1-21; 8:45 am]
BILLING CODE 3510-22-P