Endangered and Threatened Wildlife and Plants; 12-Month Petition Finding, Listing of the Spring Pygmy Sunfish as Threatened, and Designation of Critical Habitat, 60179-60206 [2012-23854]
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Vol. 77
Tuesday,
No. 191
October 2, 2012
Part II
Department of the Interior
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Fish and Wildlife Service
50 CFR Part 17
Endangered and Threatened Wildlife and Plants; 12-Month Petition Finding,
Listing of the Spring Pygmy Sunfish as Threatened, and Designation of
Critical Habitat; Proposed Rule
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Federal Register / Vol. 77, No. 191 / Tuesday, October 2, 2012 / Proposed Rules
DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[Docket No. FWS–R4–ES–2012–0068;
4500030113]
RIN 1018–AY19
Endangered and Threatened Wildlife
and Plants; 12-Month Petition Finding,
Listing of the Spring Pygmy Sunfish as
Threatened, and Designation of Critical
Habitat
Fish and Wildlife Service,
Interior.
ACTION: 12-Month finding; proposed
rule.
AGENCY:
We, the U.S. Fish and
Wildlife Service (Service), announce a
12-month finding on a petition to list
the spring pygmy sunfish (Elassoma
alabamae) as threatened under the
Endangered Species Act of 1973, as
amended (Act), and to designate critical
habitat. After review of all available
scientific and commercial information,
we find that listing the spring pygmy
sunfish as a threatened species under
the Act is warranted. Accordingly, we
propose to list the spring pygmy sunfish
as a threatened species throughout its
range and designate critical habitat for
the species under the Act. In total, we
propose approximately 8 stream miles
(mi) (12.9 kilometers (km)) and 1,617
acres (ac) (654.4 hectares (ha)) of spring
pool and spring-influenced wetland in
Limestone County, Alabama, for
designation as critical habitat.
DATES: We will consider comments
received or postmarked on or before
December 3, 2012. We must receive
requests for a public hearing, in writing,
at the address shown in the FOR FURTHER
INFORMATION CONTACT section by
November 16, 2012. Comments
submitted electronically using the
Federal eRulemaking Portal (see
ADDRESSES section, below) must be
received by 11:59 p.m. Eastern Time on
the closing date.
ADDRESSES:
(1) Electronically: Go to the Federal
eRulemaking Portal: https://
www.regulations.gov. Search for Docket
No. FWS–R4–ES–2012–0068, which is
the docket number for this rulemaking.
(2) By hard copy: Submit by U.S. mail
or hand-delivery to: Public Comments
Processing, Attn: FWS–R4–ES–2012–
0068; Division of Policy and Directives
Management, U.S. Fish and Wildlife
Service, 4401 N. Fairfax Drive, MS
2042–PDM; Arlington, VA 22203.
We request that you send comments
only by the methods described above.
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SUMMARY:
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We will post all comments on https://
www.regulations.gov. This generally
means that we will post any personal
information you provide us (see the
Information Requested section below for
more details).
The coordinates or plot points or both
from which the maps are generated are
included in the administrative record
for this critical habitat designation and
are available at https://www.fws.gov/
mississippiES/, https://
www.regulations.gov at Docket No.
FWS–R4–ES–2012–0068, and at the
Mississippi Ecological Services Field
Office (see FOR FURTHER INFORMATION
CONTACT). Any additional tools or
supporting information that we may
develop for this critical habitat
designation will also be available at the
above locations.
FOR FURTHER INFORMATION CONTACT:
Stephen Ricks, Field Supervisor,
Mississippi Ecological Services Field
Office, 6578 Dogwood View Parkway,
Jackson, MS 39213; by telephone (601–
321–1122); or by facsimile (601–965–
4340). If you use a telecommunications
device for the deaf (TDD), please call the
Federal Information Relay Service
(FIRS) at 800–877–8339.
SUPPLEMENTARY INFORMATION: This
document consists of: (1) A 12-month
petition finding that listing the spring
pygmy sunfish under the Act is
warranted; (2) a proposed rule to list the
spring pygmy sunfish as threatened; and
(3) a proposed rule to designate critical
habitat for this species.
Executive Summary
Why we need to publish a rule. Under
the Endangered Species Act, 16 U.S.C.
1531 et seq., a species or subspecies
may warrant protection through listing
if it is endangered or threatened
throughout all or a significant portion of
its range. We are proposing to list the
spring pygmy sunfish as threatened
under the Act because of current and
future threats, and listing can only be
done by issuing a rule. The spring
pygmy sunfish no longer occurs at two
of the three spring systems in which it
historically was found, and faces a
variety of threats in the Beaverdam
Spring/Creek System, the only location
where it currently occurs. We are also
proposing to designate critical habitat
under the Act. Critical habitat
represents geographical areas that are
essential to a species’ conservation, and
is designated on the basis of the best
scientific information available after
taking into consideration the economic
impact, impact on national security, and
any other relevant impact of specifying
any particular area as critical habitat.
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The basis for our action. Under the
Act, a species may be determined to be
endangered or threatened based on any
of five factors: (A) 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. The
spring pygmy sunfish is facing threats
due to three of these five factors (A, D,
and E), and potentially faces threats
under a fourth (Factor C.) The Act also
requires that the Service designate
critical habitat at the time of listing
provided that it is prudent and
determinable. We have determined that
it is both prudent and determinable (see
Critical Habitat section below) and are
proposing approximately 8 stream mi
(12.9 km) and 1,617 ac (654.4 ha) of
spring system habitat and adjacent
upland buffers for designation as critical
habitat.
Peer review is important. In addition
to seeking public comments, we will
solicit peer review of this proposal from
at least three experts knowledgeable in
spring pygmy sunfish biology and basic
conservation biology principles and
concepts.
Information Requested
We intend that any final action
resulting from this proposed rule will be
based on the best scientific and
commercial data available and be as
accurate and as effective as possible.
Therefore, we request comments or
information from other concerned
Federal and State agencies, the scientific
community, or any other interested
party concerning this proposed rule. We
particularly seek comments concerning:
(1) Additional information concerning
the historical and current status, range,
distribution, and population size of the
spring pygmy sunfish, including the
locations of any additional populations.
(2) Any information on the biological
or ecological requirements of the species
and ongoing conservation measures for
the species and its habitat.
(3) Biological, commercial trade, or
other relevant data concerning any
threats (or lack thereof) to this species
and regulations that may be addressing
those threats.
(4) Current or planned activities in the
areas occupied by the species and
possible impacts of these activities on
this species.
(5) Additional information regarding
the threats to the species under the five
listing factors, which are:
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(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; and
(e) Other natural or manmade factors
affecting its continued existence.
(6) Any information regarding
ongoing conservation activities for the
spring pygmy sunfish, including the
Belle Mina Farm, Ltd., candidate
conservation agreement with assurances
(CCAA), and their effect on the status of
the species.
(7) The reasons why areas should or
should not be designated as critical
habitat as provided by section 4 of the
Act, including the possible risks or
benefits of designating critical habitat,
including risks associated with
publication of maps designating any
area on which this species may be
located, now or in the future, as critical
habitat.
(8) The following specific information
on:
(a) The amount and distribution of
habitat for spring pygmy sunfish;
(b) What areas, that would be
occupied at the time of listing (i.e., are
currently occupied) and that contain the
physical and biological features
essential to the conservation of this
species, should be included in a critical
habitat designation and why;
(c) Special management
considerations or protection that may be
needed for the essential features in
critical habitat areas, including
managing for the potential effects of
climate change; and
(d) What areas not occupied at the
time of listing are essential for the
conservation of this species and why.
(9) Information on the projected and
reasonably likely impacts of changing
environmental conditions resulting from
climate change on the species and its
habitat.
(10) Information on groundwater
aquifer or recharge areas for spring
systems that support the spring pygmy
sunfish, and the possible implications of
extracting ground and surface water and
its impact on the spring pygmy sunfish
and its habitat.
(11) Any probable economic, national
security, or other relevant impacts of
designating any area that may be
included in the final designation; in
particular, we seek information on any
impacts on small entities or families,
and the benefits of including or
excluding areas that exhibit these
impacts.
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(12) Information on whether the
benefits of the exclusion of lands
covered by the Belle Mina Farm, Ltd.,
CCAA, or any other particular area,
outweigh the benefits of inclusion under
section 4(b)(2) of the Act.
(13) Whether we could improve or
modify our approach to designating
critical habitat in any way to provide for
greater public participation and
understanding, or to better
accommodate public concerns and
comments.
Please note that submissions merely
stating support for or opposition to the
action under consideration without
providing supporting information,
although noted, will not be considered
in making a determination, as section
4(b)(1)(A) of the Act directs that
determinations as to whether any
species is an endangered or threatened
species must be made ‘‘solely on the
basis of the best scientific and
commercial data available,’’ and section
4(b)(2) directs that critical habitat
designations be made based on the best
scientific data available and after
consideration of economic and other
relevant impacts.
You may submit your comments and
materials concerning this proposed rule
by one of the methods listed in
ADDRESSES. We request that you send
comments only by the methods
described in ADDRESSES.
If you submit information via https://
www.regulations.gov, your entire
submission—including any personal
identifying information—will be posted
on the Web site. If your submission is
made via a hardcopy that includes
personal identifying information, such
as your address, phone number, and
email address, you may request at the
top of your document that we withhold
this information from public review.
However, we cannot guarantee that we
will be able to do so. We will post all
hardcopy submissions on https://
www.regulations.gov. Please include
sufficient information with your
comments to allow us to verify any
scientific or commercial information
you include.
Comments and materials we receive,
as well as supporting documentation we
used in preparing this proposed rule,
will be available for public inspection
on https://www.regulations.gov, or by
appointment, during normal business
hours, at the U.S. Fish and Wildlife
Service, Mississippi Ecological Services
Field Office (see FOR FURTHER
INFORMATION CONTACT).
Background
Section 4(b)(3)(B) of the Act requires
that, for any petition to revise the
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Federal Lists of Threatened and
Endangered Wildlife and Plants (Lists)
that contains substantial scientific or
commercial information that listing a
species may be warranted, we make a
finding within 12 months of the date of
receipt of the petition that the
petitioned action is either: (a) Not
warranted; (b) warranted; or (c)
warranted, but the immediate proposal
of a regulation implementing the
petitioned action is precluded by other
pending proposals to determine whether
any species is endangered or threatened,
and expeditious progress is being made
to add or remove qualified species from
the Lists. With this publication, we have
determined that the petitioned action to
list spring pygmy sunfish is warranted,
and we are proposing to list the species
and to designate critical habitat for the
species.
Previous Federal Actions
The spring pygmy sunfish was
proposed for listing as endangered with
critical habitat on November 29, 1977
(42 FR 60765). The critical habitat
portion of the proposal was withdrawn
on March 6, 1979 (44 FR 12382), in
order to make a new critical habitat
proposal that conformed to new, more
prescriptive provisions for critical
habitat made in the 1978 amendments
to the Act. The Service proposed critical
habitat again for the species on July 27,
1979 (44 FR 44418). The pending
proposal to list the spring pygmy
sunfish, along with the proposed critical
habitat designation, were withdrawn
effective November 29, 1979, as
announced in the Federal Register on
January 24, 1980 (45 FR 5782).
The spring pygmy sunfish was
included in the December 30, 1982,
notice of review (47 FR 58454) as a
category 2 candidate species for listing.
Category 2 status was given to those
species for which the Service possessed
information indicating that proposing to
list as endangered or threatened was
possibly appropriate, but for which
conclusive data on biological
vulnerability and threats were not
currently available to support proposed
rules. Subsequently, in the September
18, 1985 (50 FR 37958); January 6, 1989
(54 FR 554); and November 15, 1994 (59
FR 58982) notices of review, the spring
pygmy sunfish was identified as a
category 1 candidate species for listing.
Category 1 status was given to those
species for which the Service had on file
sufficient information on biological
vulnerability and threat(s) to support a
proposal to list as endangered or
threatened but for which a proposal had
not yet been issued because of other
listing actions. On February 28, 1996 (61
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FR 7457), the Service published a notice
of review removing the spring pygmy
sunfish from the candidate list because
of successful introduction, increased
distribution (outside of the range of the
introduction), and the discovery of
additional populations, including one
on Wheeler National Wildlife Refuge. At
that time, we reported that the known
populations, each exceeding 1,000
individuals, were increasing.
On November 24, 2009, we received
a petition from the Center for Biological
Diversity (CBD) and Michael Sandel of
the University of Alabama, requesting
that the spring pygmy sunfish be listed
as endangered under the Act. In a
December 17, 2009, letter to the
petitioners, we responded that we
reviewed the information presented in
the petition, and we outlined the
petition process and timelines. In July
2010, we received letters from the North
American Native Fishes Association
(NANFA) and Dr. Bruce Stallsmith
(University of Alabama at Huntsville)
requesting that we emergency list the
species under section 4(b)(7) of the Act.
Following review of the petition, the
letters, and information in our files, we
determined that issuing an emergency
regulation temporarily listing the
species was not warranted. We notified
NANFA and Dr. Stallsmith of our
determination on July 21, 2010.
On April 1, 2011, we published in the
Federal Register (76 FR 18138) our 90day finding that the petition to list the
spring pygmy sunfish as endangered
presented substantial information
indicating that the requested action may
be warranted, and we initiated a status
review of the species.
Since 2010, Belle Mina Farms, the
owner of Beaverdam Spring, Moss
Spring, and the upper reach of
Beaverdam Creek, in Limestone County,
Alabama, and the Service have been
engaged in drafting a candidate
conservation agreement with assurances
(CCAA) for a population of spring
pygmy sunfish. The CCAA outlines a
variety of conservation measures that
will be implemented to benefit the
species (see ‘‘Conservation Efforts to
Reduce Habitat Destruction,
Modification, or Curtailment’’ under the
Factor A discussion, below). On
September 14, 2010, we received the
completed application from the
landowner for an enhancement of
survival permit for the spring pygmy
sunfish under section 10(a)(1)(A) of the
Act along with a draft CCAA. The
CCAA, the permit application, and the
environmental action statement (EAS)
were made available for public
comment for a 30-day period beginning
on February 21, 2012 (77 FR 9958). The
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CCAA and EAS were finalized in April
2012, and the associated permit was
issued on June 7, 2012. If the spring
pygmy sunfish is listed under the Act,
the permit authorizes incidental take of
the spring pygmy sunfish due to
otherwise lawful activities (e.g., crop
cultivation, livestock grazing,
silviculture, vegetation management,
water usage, road maintenance,
fencerow maintenance, etc.) in
accordance with the terms of the CCAA.
Species Information
Taxonomy and Description
The spring pygmy sunfish (Elassoma
alabamae) was discovered in 1937, but
not described until 1993 (Mayden 1993,
pp.1–14). This species is the smallest
member of the genus Elassoma. Males
are normally smaller than females and
are very dark to black with iridescent
blue-green color on their sides, cheeks,
and gill covers (Boschung and Mayden
2004, pp. 614–615). The maximum
standard length (distance from tip of
snout to the end of the last vertebrae) for
adult males is 0.80 in (20.4 mm) and for
adult females it is 0.96 in (24.5 mm)
(Boschung and Mayden 2004, pp. 614–
615). Both sexes have broad vertical and
narrow bars on their flanks. We accept
the characterization of the spring pygmy
sunfish as a valid species based on the
taxonomic characters distinguishing the
species from other members of the
Elassoma genus (Mayden 1993, p.4). Its
uniqueness is widely accepted by the
scientific community, and there has
been no discrepancy concerning its
distinctiveness as a separate taxonomic
entity (Boschung et al. 2004, p. 614).
Current Distribution
The range of the spring pygmy sunfish
is very restricted. The species currently
occupies about 5.9 mi (9.5 km) and
1,435 ac (580.6 ha) of four spring pools
and associated features confluent with
the middle to upper Beaverdam Spring/
Creek watershed. These spring pools,
which include Moss, Beaverdam,
Thorsen, and Horton springs, all in
Limestone County, Alabama, along with
associated spring runs and wetlands, are
collectively referred to as the
Beaverdam Spring/Creek system. The
greatest concentration of spring pygmy
sunfish occurs within the Beaverdam
Spring site, which comprises 24 percent
of the total occupied habitat for the
species.
Life History
The spring pygmy sunfish has high
fecundity (reproductive capacity) and
quickly populates areas of available
habitat (Sandel pers. obs. 2004 through
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2009). Adults reproduce from January to
October. Spawning occurs in March and
April, when water quality parameters
are within a suitable range (pH of 6.0 to
7.7 and water temperatures of 57.2 to 68
degrees Fahrenheit (°F) (15 to 20 degrees
Celsius (°C)). Spring pygmy sunfish
produce about 65 eggs, and hatching
occurs from April to September (Sandel
pers. obs. 2004 through 2009). Two
spawning attempts per year have been
reported in captivity (Petty et al. 2011,
p. 4). In captivity, the spring pygmy
sunfish may live slightly longer than 2
years, but normally their life span is 1
year or less (Boschung and Mayden
2004, pp. 614–615).
Habitat
The spring pygmy sunfish is a springassociated (Warren 2004, p.185) and
groundwater-dependent (Jandebeur,
pers. comm., 2011) fish endemic to the
Tennessee River drainage in the Eastern
Highland Rim physiographic province
and Dissected Tablelands (Marbut et al.
1913, p. 53) of Lauderdale and
Limestone Counties in northern
Alabama. The preferred habitat for the
spring pygmy sunfish is colorless to
slightly stained spring water, occurring
within several components of spring
geomorphology including the spring
head (where water emerges from the
ground), spring pool (water pool at
spring head), spring run (stream or
channel downstream of spring pool),
and associated spring-fed wetlands
(Warren 2004, pp. 184–185). No
contemporary water flow rates
characterizing groundwater flow from
the springs are available. However,
historical flow rates for Pryor Spring
(where the species once occurred) and
Moss Spring of 800 to 5,000 gallons per
minute (gpm) (3,000 to 19,000 liters per
minute (lpm))(tabulated from Chandler
and Moore 1987, pp. 3–4), respectively,
indicate that the spring pygmy sunfish
is associated with moderately flowing
springs of the second to fourth order
(after Meinzer 1923, in Chandler and
Moore 1987, p. 5; McMaster and Harris
1963, p. 28).
Natural spring pool habitats are
typically static, persisting without
disruption for long periods, even during
droughts, in the absence of water
extraction. The species is most
abundant at the spring outflow or
emergence (spring head) and spring
pool area. The spring pygmy sunfish is
typically found at water depths from 5
to 40 inches (in) (13 to 102 centimeters
(cm)) and rarely in the upper 5 inches
(13 cm) of the water column. Species of
submergent and emergent vegetation
providing important habitat for the
spring pygmy sunfish include clumps
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and stands of Sparganium sp. (bur
reed), Ceratophyllum sp. (coontail),
Nasturtium officinale (watercress),
Juncus sp. (rush), Carex sp. (sedges),
Nuphar luteum (yellow pond lily),
Myriophyllum sp. (parrot feather),
Utricularia sp. (bladderwort),
Polygonum sp. (smartweed), Lythrum
salicaria (purple loosestrife), and
Callitriche sp. (water starwort) (Mayden
1993, p. 11; Jandebeur 1997, pp. 42–44;
Sandel 2011, pp. 3–5, 9–11). The
species is also associated with certain
animal species such as amphipods,
isopods, spring salamanders, crayfish,
and snails (Sandel 2011, pp.11–12;
Mayden 1993, p. 11).
Historical Distribution and Status
The spring pygmy sunfish was known
to have historically occurred at two
other sites. This species was initially
discovered in 1938, in Cave Springs,
Lauderdale County, Alabama, where it
was extirpated about a year later due to
inundation from the formation of
Pickwick Reservoir. In 1941, this
species was also discovered in Pryor
Spring within the Swan Creek
watershed in Limestone County,
Alabama, by Tarzwell and Bretton,
where it was noted to be common
(Jandebeur 2011a, pp. 1–5). Limited
sampling efforts in the Pryor Springs
complex between 1966 and 1979
indicated a sparse population of spring
pygmy sunfish west of, and none east of,
Highway 31. The exact location of the
original collection in Pryor Spring is
uncertain, but Jandebeur (2011a, pp. 1–
5) speculates the original site to be
solely west of Highway 31, within the
Pryor Spring Branch (spring-fed
wetlands) and not in Pryor Spring
proper (spring head and pool), east of
the highway. However, in 1984, in an
effort to enhance this population in
Pryor Spring, fish were moved from
Moss Spring (Beaverdam Spring/Creek
System) into Pryor Spring on both sides
of Highway 31 (Mettee et. al. 1986, pp.
14–15). Reintroduction efforts
continued into 1986 and 1987 (Mettee
et. al. 1986, pp. 6–7). However, by 2007,
the population was determined to be
extirpated due to impaired water quality
and quantity, likely attributable to
contaminants from agricultural runoff
(Sandel 2008, p. 2; 2011, pp. 3, 6).
The spring pygmy sunfish exhibits
metapopulation (a group of individual
populations that have some level of
gene flow between them) structure by
occupying all suitable spring habitats
where there is flowing spring water and
connectivity. Migration and continuity
of the species between spring pools is
very important in maintaining the
genetic diversity of species within these
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sections of the Beaverdam Spring/Creek
system. Sandel (2008, pp. 15–16; 2011,
p. 8) suggests that the spring pygmy
sunfish population in Beaverdam
Spring/Creek is a single, structured,
continuous group of breeding
individuals, genetically identifiable
with limited gene flow from each
springhead subpopulation, and that the
loss of many subpopulations could
cause extinction of the metapopulation.
However, Jandebeur (2011b, pp. 1–13)
speculates that these populations of
spring pygmy sunfish evolved with
beaver ecology and that during
migration of spring pygmy sunfish from
beaver pond habitats, the species may
colonize or recolonize existing habitat
downstream, even though individual
subpopulations may be extirpated due
to drought or other ecological issues.
Summary of Information Pertaining to
the Five Factors
Section 4 of the Act and its
implementing regulations (50 CFR part
424) set forth the procedures for adding
species to the Federal Lists of
Endangered and Threatened Wildlife
and Plants. A species may be
determined to be an endangered or
threatened species due to one or more
of the following five factors described in
section 4(a)(1) of the Act:
(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; and
(E) Other natural or manmade factors
affecting its continued existence.
Listing actions may be warranted
based on any of the above threat factors,
singly or in combination. Each of these
factors is discussed below.
In considering what factors might
constitute threats to a species, we must
look beyond the exposure of the species
to a particular factor to evaluate whether
the species may respond to that factor
in a way that causes actual impacts to
the species. If there is exposure to a
factor and the species responds
negatively, the factor may be a threat.
The factor is a threat if it drives, or
contributes to, the risk of extinction of
the species such that the species
warrants listing as endangered or
threatened as those terms are defined in
the Act. However, the identification of
factors that could impact a species
negatively may not be sufficient to
compel a finding that the species
warrants listing. The information must
include evidence sufficient to suggest
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that these factors are operative threats
that act on the species to the point that
the species may meet the definition of
endangered or threatened under the Act.
Factor A: The Present or Threatened
Destruction, Modification, or
Curtailment of Its Habitat or Range
Increased human population growth,
and the accompanying demand for
water, will likely alter the Beaverdam
Spring/Creek system and its recharge
areas through increased water extraction
(pumping), diversion, and retention
(Erman 2002, p. 8). Because springs
provide shelter, thermal refuge,
breeding sites, movement corridors, and
prey source habitat for the spring pygmy
sunfish, the species is dependent on
water quantities sufficient to provide
spring habitat that is stable and
permanent (Erman 2002, p. 8).
Urban and Industrial Development
Urban development adjacent to the
Beaverdam Spring/Creek system would
likely fragment and directly impact
suitable spring pygmy sunfish habitat by
decreasing water quality and quantity,
and by limiting the species’ movement
throughout the system. When an area is
urbanized, many impermeable surfaces
are constructed such as roofs,
pavements, and road surfaces. All are
intentionally constructed to be far less
permeable than natural soils and to
remove stormwater quickly, which
results in a reduction in direct recharge
into the aquifer, increased stormwater
runoff (Younger 2007, p. 39), immediate
changes in water quality parameters
such as decreased oxygen levels and
increased temperature, and increased
water quantity and flow velocity (Field
et al. 2003, pp. 326–333). The
stormwater flow velocity carries
sediments that may scarify (make
scratches or cuts in) rock and gravel
substrates (Waters 1995, pp. 57, 66) and
uproot aquatic vegetation, thereby
destroying important foraging,
spawning, and refuge habitat for the
species (Field et al. 2003, pp. 326–333).
The spring pygmy sunfish is currently
facing threats from planned large-scale
residential and industrial projects and
ongoing development within the
vicinity of the Beaverdam Spring/Creek
watershed. Sandel (2011, p. 11)
observed declines in the species’
population and attributed it to
sedimentation from two nearby
construction activities: the construction
of a new sewer line adjacent to the
spring system and the construction of
the Ashbury subdivision 2.3 mi (3.7 km)
northeast of the species’ habitat. The
Ashbury subdivision, adjacent to
Hardeman Branch and draining into the
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upper Beaverdam Spring/Creek
watershed, filled adjacent wetlands
when residential housing, roads, utility
crossings, and stormwater drains were
constructed (U.S. Army Corps of
Engineers 2011, pp. 1–6).
The City of Huntsville’s Master Plan
for Western Annexed Land (Sasaki
2011, pp. 1–83) proposes developing a
total of 10,823 ac (4,379.9 ha) adjacent
to spring pygmy sunfish habitat. More
than 68 percent of the proposed
development site is adjacent to the
Beaverdam Spring/Creek watershed.
The restricted-use area for subdivision
development, within the City of
Huntsville, is a minimum of 25 feet (7.6
meters) from the perimeter of a
perennial spring. However, no
restrictions are set forth for ephemeral
springs or seasonal groundwater
seepages (City of Huntsville 2007, p.
28), which include many of the
ephemeral springs, seepages, and
streams draining into the Beaverdam
Spring/Creek watershed. These features
are necessary for maintenance of
seasonal flow rates. Filling them or
converting them to developed areas
could therefore adversely affect the
spring pygmy sunfish. In addition, there
are roads proposed to connect the
planned developments with the
Interstate 65 and Interstate 565 corridors
(Sasaki 2011, pp. 1–83), along with
feeder roads and improvements on
primary and secondary existing
roadways in support of new residential
and industrial projects (Sasaki 2011, pp.
1–83). Developed, paved-over areas
(impervious substrate) promote runoff
and inhibit infiltration, changing water
flow rates from slow and incremental to
fast and localized, because stormwater
is directed via surface routes into
specific areas of the receiving stream,
rather than infiltrating into the soil or
draining naturally into surface water.
Pumping or diversion of springs
creates unstable conditions for springdependent species such as the spring
pygmy sunfish through fluctuating
water levels and temperature changes.
The incremental and cumulative
groundwater recharge effects on the
habitat of the spring pygmy sunfish may
not become evident for years (Likens
2009, p. 90). Within north Alabama, the
availability of large quantities of
groundwater from springs has been an
important factor in industrial and urban
development (Warman and Causey
1963, p. 93). It is estimated that, by
2015, the population in Limestone and
Lauderdale Counties will increase
dramatically (Roop 2010, p. 1), along
with expanding urbanization and
industrialization (Sasaki 2011, pp. 1–
83).
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The Fort Payne Chert of the Early
Mississippian Age is the principal
aquifer of spring pygmy sunfish habitat
and provides groundwater to all of
Limestone County (McMaster and
Harris, Jr. 1963, p. 1). Groundwater in
the County is ultimately derived from
percolation of precipitation (McMaster
and Harris, Jr. 1963, p. 17) into the
aquifer system. In urban settings,
percolation of rainwater to the aquifer
may be disrupted due to less pervious
zones and more shunting of rainfall into
stormwater systems (Healy 2010, pp.
70–72; Younger 2007, pp. 117–121).
Change in land use from rural to urban/
industrial within the Beaverdam Spring/
Creek area will be detrimental to the
spring pygmy sunfish due to changes in
the water quality parameters such as
oxygen and temperature, along with
changes in water quantity, such as
increased stream flow and velocity, due
to increased amounts of impervious
materials and associated stormwater
runoff in the watershed. This may be
coupled with a subsequent reduction in
precipitation infiltrating through the
soil surface to the aquifer, which will
ultimately reduce spring baseflow (Field
et al. 2003, pp. 326–333; Healy 2010, p.
3).
Water Quantity
Excessive groundwater extraction
from the aquifer supplying Beaverdam
Spring/Creek is a threat to the spring
pygmy sunfish (Drennen, pers. obsv.
2007–2011; Sandel 2011, pp. 3–6;
National Water Quality Assessment
(NAWQA) program, https://
tn.water.usgs.gov/lten/lten.html)
because of the reduction of the water
levels in the aquifer and resultant
decreased spring outflow (Cook,
Geological Survey of Alabama (GSA),
pers. comm., 2011). Sandel (in Kuhajda
et al. 2009, p. 19; 2011, pp. 3–6)
documented a relationship between
pumping activities in Moss, Horton, and
Thorsen Springs and degraded spring
pygmy sunfish habitat. Specifically, in
Thorsen Spring, during 2007, water was
extracted to a level that destroyed
vegetation and decreased the abundance
of the spring pygmy sunfish by 99
percent (Sandel, pers. obs., 2004
through 2009; Sandel 2011, p. 6). The
proximity of the spring pygmy sunfish’s
habitat to agricultural land throughout
its range makes it vulnerable to impacts
due to the extraction of groundwater for
agricultural uses. Sandel (in Kuhajda et
al. 2009, p. 19) estimated that up to
16,000 gpm (62,000 lpm) of water was
extracted from the Beaverdam Spring/
Creek watershed for agricultural
purposes during drought conditions
during the 2008 growing season. He
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further estimated that this level of
withdrawal desiccated and killed
aquatic vegetation necessary for the
spawning, foraging, and shelter of the
species.
Commercial water withdrawal from
this same aquifer by the Limestone
County pumping station, between 2006
and 2011, was over 1 billion gallons (3.9
billion liters) at an estimated flow rate
of 450 gpm (1,740 lpm) (Holland, pers.
comm., 2011). Heavy groundwater
withdrawal by the cities of Huntsville
and Madison (east of the spring pygmy
sunfish habitat), and the adjacent rural
population, is estimated at 16 million
gallons per day (62 million liters per
day) (U.S. Geological Survey National
Aquatic Water Quality Assessment
2001, 2009; Sandel, pers. comm., 2007–
2009; Kingsbury 2003, p. 2; Hoos et al.
2001, p. 1). Withdrawal of groundwater
by pumping, at high levels such as those
above, especially during drought
conditions, can cause changes to water
budgets (Healy 2010, p. 15) and the
natural flow of spring systems (Alley in
Likens 2009, p. 91). Pumping from wells
beside streams also lowers groundwater
levels and reduces surface water flow
within streams and spring runs. In
smaller streams, decreased flow caused
by pumping can be large enough to
create harmful effects upon the stream
and its wildlife (Hunt 1999, pp. 98–
102). Water extraction by pumping also
causes a loss of aquifer storage and
lowers the pressure in the aquifer (Theis
1935, p. 519), resulting in decreased
spring flow velocity and quantity to
adjacent streams. These reductions in
the natural flow regime can adversely
affect the spring pygmy sunfish.
In several large springs in the United
States, groundwater extraction for
public consumption and agricultural
use has impacted listed fish species by
decreasing groundwater levels.
Examples include the endangered
Devil’s Hole pupfish (Cyprinodon
diabolis) (Hoffman et al. 2003, p. 1248)
and the endangered fountain darter
(Etheostoma fonticola) (Service 1996, p.
19). Water extraction in spring pygmy
sunfish habitat is causing desiccation
and reduction of the aquatic vegetation,
and concentrating pollutants.
The effects on stream flow after water
extraction stops may be greater due to
the overall decrease in water quantity in
the stream. Decreased water levels after
pumping in the spring pool correspond
to decreased aquatic vegetation in the
system; less water quantity increases the
desiccation of vegetation, which may
negatively impact the species
(Jandebeur 1979, pp. 4–8; Mayden 1993,
pp. 11–12) by reducing the vegetative
cover and contributing to eutrophication
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of the water, as demonstrated with
spring pygmy sunfish habitat impacts
and subsequent population declines in
Moss, Horton, and Thorsen Springs
(Sandel pers. obs. 2004 through 2009;
2011, pp. 3–6).
Water Quality
The heavy use of chemicals within
spring pygmy sunfish habitat and the
recharge areas of occupied spring
systems is a potential threat to the
species. The intensive agricultural
practices and proposed urbanization
and industrialization plans within the
immediate area of the watershed
threaten to contaminate the
groundwater in the aquifer supplying
the Beaverdam Spring/Creek site (Healy
2010, p. 70). Transportation of
contaminants to the aquifer by recharge
water can be slow and steady or highly
episodic over time (Healy 2010, p. 75).
In a similar spring system in northeast
Alabama, the threatened pygmy sculpin
(Cottus paulus) is believed to be
impacted by the increased concentration
of toxins entering the aquifer from a
nearby military base (Thomas, pers.
comm., 2009).
Fertilizers and pesticides are
transported to the aquifer by recharge,
or into surface water routes, where they
eventually enter springs and are a threat
to the survival of fishes found there
(Hoffman et al. 2003, p. 1248; U.S. Fish
and Wildlife Service 1996, pp. 35–36).
Toxins can concentrate when spring
flow is reduced, posing an even greater
threat to spring fishes. The Beaverdam
Spring/Creek watershed has the highest
annual crop harvest, the highest total
annual nitrogen use, and second highest
annual phosphorus use, along with
elevated pesticide usages detected in
groundwater, within the Eastern
Highland Rim (Mooreland 2011, p. 2;
NAWQA 2009, https://water.usgs.gov/
nawqa/digmap.html; Kingsbury 2003, p.
20). Both the historic and extant spring
pygmy sunfish populations in
Limestone County (Beaverdam Spring/
Creek, Pryor Springs) are within the
Wheeler Lake Basin (southern boundary
of Limestone County), where Tsegaye et
al. (2006, pp. 175–176) found that rapid
urbanization with associated decrease in
agricultural land cover is likely
responsible for water quality
degradation in streams from non-point
source phosphorus pollution.
Phosphorus content of groundwater is
generally low (Wetzel 1983, p. 281).
However, urbanization increases the
amount of phosphorus from residential
fertilizers and storm sewer drainage
(Wetzel 1983, p. 281) that may enter
groundwater recharge areas. Phosphorus
limits biological productivity (Wetzel
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1983, p. 255) by impacting organismal
metabolism. Nitrogen also impacts
aquatic life. For instance, un-ionized
ammonia (which contains nitrogen) is
highly toxic to fish (Hoffman et al. 2003,
p. 681). The planned development
adjacent to spring pygmy sunfish habitat
is likely to increase phosphorus and
nitrogen levels in the future.
Aquatic plants, which the spring
pygmy sunfish uses for spawning,
shelter, and foraging, are also impacted
by indiscriminate use of chemicals
(Jandebeur 2012, p. 2; Sandel 2011, pp.
1–5, 8–9). Since 1945, herbicide usage,
cattle grazing, and irrigation have
occurred throughout the spring systems
and waterways that are habitat for this
species (Jandebeur 1979, pp. 4–8).
Aquatic vegetation management within
Thorsen Spring, Horton Spring, and the
Pryor Spring/Branch system has
removed the spring pygmy sunfish’s
shelter vegetation, egg substrate, and
food sites (Jandebeur 1979, pp. 4–8;
Mayden 1993, p. 9; Jandebeur 2012, p.
2). Agricultural chemical contamination
results in sublethal toxic effects in fish
species, affecting the immune system,
hormone regulation, reproduction, and
developmental stages (Hoffman et al.
2003, pp. 1056-–1063, 1242). The spring
pygmy sunfish’s negative response to
herbicides (Hoffman et al. 2003, p.
1242) is documented by the subsequent
reduction and eventual loss of the
population in Pryor Branch after the
application of 2, 4dichlorophenoxyacetic acid (2,4-D) to
that area in the 1940s (Jandebeur 2012,
pp. 1–18). This herbicide is toxic to fish
and aquatic invertebrates, and has
properties and characteristics associated
with chemicals generally detected in
groundwater contamination. Decaying
vegetation caused by the application of
this herbicide also impacts fishes by
reducing dissolved oxygen levels
(Environmental Protection Agency
(EPA) Material Safety Data Sheet, pp. 1–
13).
Many of the same chemicals used in
large-scale agricultural practices are also
used by municipal entities including
urban and rural households. Stormwater
runoff from city streets, construction
sites, and storm sewers; household
wastes; and leachate from septic tanks
and landfills alter the sediment load in
aquatic systems and deposit
contaminants into surface and
groundwater sources (Likens 2009, p.
90). Water quality degradation from
chemicals will increase with the
expected increase in urbanization and
industrialization of the area.
Overgrazing by livestock is a major
threat to springs, especially where
animals have free range through spring
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systems and wetlands. Cows tend to
congregate in wetland areas, where they
consume and trample vegetation,
thereby reducing shade around the
spring and increasing the water
temperature. Livestock also trample
banks in springs and spring runs,
leading to increased stormwater and
sediment runoff, which eliminates
habitat for invertebrate prey species
(Erman 2002, p. 8; Sada et al. 2001, pp.
14–16). Excessive sediment runoff
during stormwater events decreases
water clarity, which reduces light
penetration needed for plant growth and
results in impacts to the spring pygmy
sunfish’s spawning and feeding sites.
Timber harvesting and land clearing
can also have impacts on spring water
quality and associated spring species.
Recent tree removal along the boundary
of the Wheeler National Wildlife Refuge,
which is spring pygmy sunfish habitat
and part of the Beaverdam Spring/Creek
system, highlights the need for careful
management of spring habitats (Hurt,
pers. comm., 2012). The removal of the
trees greatly reduced the buffer along
the Beaverdam Spring/Creek system and
will likely increase sedimentation into
the stream during stormwater runoff. An
appropriate mixture of shade and
sunlight is needed for the proper growth
and maintenance of vegetation in the
spring environment. This vegetation is
important to maintaining a stable water
temperature and habitat for an
invertebrate prey base. Reducing shade
by mechanical logging and clearing can
increase atypical spring flow, lead to
greater spring run flow variability, and
increase sedimentation (Erman 2002, p.
9) by altering the existing
geomorphology and enhancing
stormwater runoff.
Conservation Efforts To Reduce Habitat
Destruction, Modification, or
Curtailment
When considering whether or not to
list a species under the Act, we must
identify existing conservation efforts
and their effect on the species. Under
the Act and our policy implementing
this provision, known as the Policy for
Evaluation of Conservation Efforts
When Making Listing Decisions (PECE)
(68 FR 15100; March 28, 2003), we must
evaluate the certainty of an effort’s
effectiveness on the basis of whether the
effort or plan: Establishes specific
conservation objectives; identifies the
necessary steps to reduce threats or
factors for decline; includes quantifiable
performance measures for the
monitoring of compliance and
effectiveness; incorporates the
principles of adaptive management; is
likely to be implemented; and is likely
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to improve the species’ viability at the
time of the listing determination. In
general, in order to meet these standards
for the spring pygmy sunfish,
conservation efforts must, at minimum,
report data on existing populations,
describe activities taken toward
conservation of the species, demonstrate
either through data collection or best
available science how these measures
will alleviate threats, provide for a
mechanism to integrate new information
(adaptive management), and provide
information regarding certainty of the
implementation (e.g., funding and
staffing mechanisms).
The Service entered into a CCAA for
the benefit of the spring pygmy sunfish
with Belle Mina Farms, Ltd., and the
Land Trust of Huntsville and North
Alabama (Land Trust) on June 7, 2012.
The area covered under the CCAA is
approximately 3,200 acres and
encompasses the upper 24 percent of
habitat occupied by the Beaverdam
Spring/Creek metapopulation, which is
currently the only known population for
the species. Under the CCAA, the
landowner agrees to implement
conservation measures to address
known threats to the species. These
measures will help protect the species
on his property in the near term and
also minimize any incidental take of the
species that might occur as a result of
conducting other covered activities, if
the species becomes federally listed in
the future. Conservation measures to be
implemented by the landowner on this
property will assist in the reduction of
chemical usage and stormwater runoff
from agricultural fields by establishing
and maintaining vegetated buffer zones
around Moss and Beaverdam Spring.
The landowner also agrees to restrict
timber harvest and cattle grazing within
the Beaverdam Spring/Creek and Moss
Spring habitats, and to refrain from any
deforestation, industrial/residential
development, aquaculture, temporary or
permanent ground water removal
installations, and other potentially
damaging actions without prior
consultation with the Service and the
Service’s written agreement. These
actions will minimize impacts and help
to maintain groundwater recharge of the
aquifer and adequate spring flow. The
Land Trust will conduct monitoring on
the progress of the conservation actions
and annual habitat analyses.
The CCAA and associated
enhancement of survival permit have a
duration of 20 years; however, under a
special provision of this CCAA, if at any
time a 15 percent decline in the status
of the spring pygmy sunfish is
determined, there will be a reevaluation
of the conservation measures set forth in
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the CCAA. If such a reevaluation reflects
a need to change the conservation
measures, the amended measure(s) will
be implemented or the CCAA will be
terminated and the permit surrendered.
Conservation efforts set forth in this
CCAA are a positive step toward the
conservation of the spring pygmy
sunfish. These conservation actions will
reduce the severity of some of the
threats to the species outlined under
Factor A within the upper portion of the
Beaverdam Spring/Creek and Moss
Spring sites. However, these
conservation measures and the CCAA
are restricted to only the upper 24
percent of occupied habitat in the
Beaverdam Spring/Creek complex.
There is no protection for the 24 percent
of the species’ habitat within the middle
reach of the Beaverdam Spring/Creek
System. The remaining 52 percent of the
species’ habitat, although it is federally
owned and protected, is considered
marginal habitat in the lower reach of
the Beaverdam Spring/Creek System. In
the middle and non-protected area
below the CCAA protected site, land use
practices continue to contribute to water
quantity and water quality degradation.
In addition, the large-scale development
planned adjacent to this species’ habitat,
and outside the boundaries of the land
enrolled in the CCAA, continues to pose
a threat to the spring pygmy sunfish and
its habitat. Furthermore, since this
CCAA has been just recently enacted,
there has yet to be long-term
monitoring, which is needed to evaluate
the overall effectiveness of these efforts.
Summary of Factor A
As discussed above, the spring pygmy
sunfish and its habitat are currently
facing the threats of both declining
water quality and quantity. Excessive
groundwater usage, and the resultant
reduction of the water levels in the
aquifer/recharge areas and decreased
spring outflow in the Beaverdam
Spring/Creek system, is believed to have
negatively impacted the spring pygmy
sunfish and its habitat. Contamination
of the recharge area and aquifer from the
intensive use of chemicals (i.e.,
herbicides, pesticides, fertilizers) within
the spring pygmy sunfish’s habitat poses
a threat to the species’ survival.
Stormwater discharge from agricultural
lands and urban sites compounds the
water quality degradation by increasing
sediment load and depositing
contaminants into surface and
groundwater sources. In addition, the
large-scale residential and industrial
development planned adjacent to the
Beaverdam Spring/Creek system will
exacerbate the decreasing water quantity
and quality issues within the habitat of
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the spring pygmy sunfish’s single
metapopulation. Overgrazing by
livestock and land clearing near and
within the spring systems reduces the
vegetation in the spring and increases
stormwater and sediment runoff, posing
a threat to the single spring pygmy
sunfish population, particularly in the
middle and lower portions of its range.
Based on our review of the best
commercial and scientific data
available, we conclude that the present
or threatened destruction, modification,
and curtailment of its habitat or range is
currently a threat to the spring pygmy
sunfish and is expected to persist and
possibly escalate in the future,
particularly in light of the increasing
demands for groundwater and largescale development that is planned near
this species’ habitat. While the CCAA
has reduced some of the threats under
this factor, it only covers a portion of
the extant range of the species, and will
not ameliorate all threats of ongoing and
potential water quantity and water
quality degradation.
Factor B: Overutilization for
Commercial, Recreational, Scientific, or
Educational Purposes
The spring pygmy sunfish is not a
commercially valuable species.
However, this species has been actively
sought by researchers since its discovery
in 1937. Overcollecting may have been
a localized factor in the historical
decline of this species, particularly
within the introduced population in
Pryor Spring/Branch (Jandebeur 2012, p.
14); however, the overall impact of
collection on the spring pygmy sunfish
population is unknown (Jandebeur
2012, p. 14). The localized distribution
and small size of known populations
renders them vulnerable to overzealous
recreational or scientific collecting.
However, at this time we have no
specific information indicating that
overcollection rises to the level to pose
a threat to the species now or in the
future. Therefore, we find that
overutilization for commercial,
recreational, scientific, or educational
purposes does not constitute a threat to
the spring pygmy sunfish at this time.
Factor C: Disease or Predation
Diseases of the spring pygmy sunfish
are poorly known, and we have no
specific information indicating that
disease occurs within spring pygmy
sunfish populations or poses a threat to
the species. Eggs, juveniles, and adult
spring pygmy sunfish are preyed upon
by some invertebrate species, parasites,
and vertebrate species such as frogs,
snakes, turtles, other fish, and
piscivorous (fish-eating) birds. It is
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possible that predation increases when
fish are concentrated in smaller areas
when groundwater is depleted through
water extraction. However, we have no
evidence of any specific declines in the
spring pygmy sunfish due to predation.
In summary, we conclude that the
best scientific and commercial
information available indicates, at the
present time, that diseases or predation
are not threats to the spring pygmy
sunfish.
Factor D: The Inadequacy of Existing
Regulatory Mechanisms
The spring pygmy sunfish and its
habitat are afforded some protection
from surface water quality and habitat
degradation under the Clean Water Act
(33 U.S.C. 1251 et seq.), and the
Alabama Water Pollution Control Act
(Code of Alabama, sections 22–22–1 et
seq.) and regulations promulgated by
the Alabama Department of
Environmental Management (Maynard
and Gale 1995, pp. 20–28). While these
laws have resulted in some
improvement in water quality and
stream habitat for aquatic life, such as
requiring landowners engaged in
agricultural practices to have an erosion
prevention component within their farm
plan, alone they have not been fully
adequate to protect this species due to
inconsistent implementation,
monitoring, and enforcement.
Furthermore, habitat degradation is
ongoing despite the protection afforded
by these laws.
The State of Alabama maintains
water-use classifications through
issuance of National Pollutant Discharge
Elimination System (NPDES) permits to
industries, municipalities, and others;
these permits set maximum limits on
certain pollutants or pollutant
parameters. For water bodies on the
Clean Water Act’s section 303(d) List of
Impaired Water Bodies, States are
required under the Clean Water Act to
establish a total maximum daily load
(TMDL) for the pollutants of concern
that will bring water quality into the
applicable standard. Many of the water
bodies within the occupied range of the
spring pygmy sunfish do not meet Clean
Water Act standards (Alabama 2008
section 303(d) List of Impaired Water
Bodies).
The State of Alabama’s surface water
quality standards, adopted from the
national standards set by the EPA, were
established with the intent to protect all
aquatic resources within the State of
Alabama. These water quality
regulations appear to be protective of
the spring pygmy sunfish as long as
discharges are within permitted limits
and are enforced according to the
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provisions of the Clean Water Act.
Unregulated and indiscriminate
groundwater and surface water
extraction has been identified as a threat
to spring species (see Factor A
discussion above). Within the State of
Alabama, regulations concerning
groundwater issues are limited
(Alabama Law Review 1997, p. 1).
Alabama common law follows a
‘‘reasonable use rule’’ for the extraction
of groundwater, and there is a statutory
framework that regulates and governs
groundwater extraction (Chapman et al.
2005, p. 9; Alabama Water Resources
Act, Code of Alabama, sections 9–10B–
1 et seq.). Water users must file a
declaration of beneficial use, be issued
a certificate of use, and be permitted
and monitored periodically. The
Alabama Water Commission can place
restrictions on certificates of use in
certain designated water capacity
stressed areas; however, the Alabama
Water Commission has not identified
any stressed groundwater areas in or
near spring pygmy sunfish habitat.
Large volumes of groundwater continue
to be extracted in areas not identified as
‘‘stressed groundwater areas’’ such as
the Beaverdam Spring/Creek watershed,
and this likely depresses water levels in
nearby wells (Hairston et al. 1990, p. 7)
and springs (Younger 2007, p. 162).
Such groundwater extraction has likely
depleted the aquifer that supplies water
to Beaverdam Spring and the spring
pygmy sunfish. Thus, water use
restrictions under common law
(Chapman et al. 2005, p. 10) provide
marginal protection for the species.
Summary of Factor D
The spring pygmy sunfish and its
habitat are afforded limited protection
from surface water quality and habitat
degradation under Federal and State
regulations. Notwithstanding this
limited protection, large volumes of
groundwater are continually extracted,
and these extractions likely threaten the
aquifer that supplies water to spring
pygmy sunfish habitat. Degradation of
habitat within the current range of this
species is ongoing despite the
protections afforded by these existing
laws. Therefore, based on the best
scientific and commercial information
available, we consider the inadequacy of
existing regulatory mechanisms to be a
threat to spring pygmy sunfish.
Factor E: Other Natural or Manmade
Factors Affecting Its Continued
Existence
Impediments to migration,
connectivity, and gene flow between or
within spring systems are threats to
maintaining genetic diversity in the
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spring pygmy sunfish. Habitat
connectivity is critical to maintaining
heterozygosity (genetic diversity) within
populations of the species and reducing
inbreeding, thereby maintaining the
integrity of the population (Hallerman
2003, pp. 363–364). Connectivity of
spring pygmy sunfish habitats is also
necessary for improvement in water
quality through flushing and diluting
pollutants and increasing water
quantity, and by linking spring
segments together. Connectivity
maintains water flow between
Beaverdam Spring/Creek habitats and
allows for potential colonization of
unoccupied areas when conditions
become favorable for the species.
Mechanical fragmentation of the habitat
has formed smaller, isolated
subpopulations of spring pygmy
sunfish. Localized environmental
changes caused by agriculture,
urbanization, and other anthropogenic
disturbances of the spring systems
throughout the watersheds of the
Eastern Highland Rim have exacerbated
fragmentation of spring habitat (Sandel
2011, pp. 3–6; 2008, pp. 2–4, 13). Over
time, this fragmentation of the spring
pygmy sunfish’s habitat will impose
negative selective pressures on the
species’ populations, such as genetic
isolation; reduction of space for rearing,
recruitment, and reproduction;
reduction of adaptive capabilities; and
increased likelihood of local extinctions
(Sandel 2011, pp. 8–10; Burkhead et al.
1997, pp. 397–399).
Climate Change
‘‘Climate’’ refers to an area’s long-term
average weather statistics (typically for
at least 20- or 30-year periods),
including the mean and variation of
surface variables such as temperature,
precipitation, and wind; ‘‘climate
change’’ refers to a change in the mean
or variability or both of climate
properties that persists for an extended
period (typically decades or longer),
whether due to natural processes or
human activity (Intergovernmental
Panel on Climate Change (IPCC) 2007a,
p. 26). Although changes in climate
occur continuously over geological time,
changes are now occurring at an
accelerated rate. For example, at
continental, regional, and ocean basin
scales, recent observed changes in longterm trends include: A substantial
increase in precipitation in eastern parts
of North American and South America,
northern Europe, and northern and
central Asia, and an increase in intense
tropical cyclone activity in the North
Atlantic since about 1970 (IPCC 2007a,
p. 30); and an increase in annual
average temperature of more than 2 °F
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(1.1 °C) across United States since 1960
(Global Climate Change Impacts in the
United States (GCCIUS) 2009, p. 27).
Examples of observed changes in the
physical environment include: An
increase in global average sea level, and
declines in mountain glaciers and
average snow cover in both the northern
and southern hemispheres (IPCC 2007a,
p. 30); substantial and accelerating
reductions in Arctic sea-ice (e.g.,
Comiso et al. 2008, p. 1); and a variety
of changes in ecosystem processes, the
distribution of species, and the timing of
seasonal events (e.g., GCCIUS 2009, pp.
79–88).
The IPCC used Atmosphere-Ocean
General Circulation Models and various
greenhouse gas emissions scenarios to
make projections of climate change
globally and for broad regions through
the 21st century (Randall et al. 2007, pp.
596–599), and reported these
projections using a framework for
characterizing certainty (Solomon et al.
2007, pp. 22–23). For example: (1) It is
virtually certain there will be warmer
and more frequent hot days and nights
over most of the earth’s land areas; (2)
it is very likely there will be increased
frequency of warm spells and heat
waves over most land areas, and the
frequency of heavy precipitation events
will increase over most areas; and (3) it
is likely that increases will occur in the
incidence of extreme high sea level
(excludes tsunamis), intense tropical
cyclone activity, and the area affected
by droughts (IPCC 2007b, p. 8, Table
SPM.2). More recent analyses using a
different global model and comparing
other emissions scenarios resulted in
similar projections of global temperature
change across the different approaches
(Prinn et al. 2011, pp. 527, 529).
All models (not just those involving
climate change) have some uncertainty
associated with projections due to
assumptions used, data available, and
features of the models; with regard to
climate change this includes factors
such as assumptions related to
emissions scenarios, internal climate
variability, and differences among
models. Despite this, however, under all
global models and emissions scenarios,
the overall projected trajectory of
surface air temperature is one of
increased warming compared to current
conditions (Meehl et al. 2007, p. 762;
Prinn et al. 2011, p. 527). Climate
models, emissions scenarios, and
associated assumptions, data, and
analytical techniques will continue to
be refined, as will interpretations of
projections, as more information
becomes available. For instance, some
changes in conditions are occurring
more rapidly than initially projected,
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such as melting of Arctic sea-ice
(Comiso et al. 2008, p. 1; Polyak et al.
2010, p. 1797), and since 2000, the
observed emissions of greenhouse gases,
which are a key influence on climate
change, have been occurring at the midto higher levels of the various emissions
scenarios developed in the late 1990s
and used by the IPCC for making
projections (e.g., Raupach et al. 2007,
Figure 1, p. 10289; Manning et al. 2010,
Figure 1, p. 377; Pielke et al. 2008,
entire). Also, the best scientific and
commercial data available indicate that
average global surface air temperature is
increasing and several climate-related
changes are occurring and will continue
for many decades even if emissions are
stabilized soon (e.g., Meehl et al. 2007,
pp. 822–829; Church et al. 2010, pp.
411–412; Gillett et al. 2011, entire).
Changes in climate can have a variety
of direct and indirect impacts on
species, and can exacerbate the effects
of other threats. Rather than assessing
‘‘climate change’’ as a single threat in
and of itself, we examine the potential
consequences to species and their
habitats that arise from changes in
environmental conditions associated
with various aspects of climate change.
For example, climate-related changes to
habitats, predator-prey relationships,
disease and disease vectors, or
conditions that exceed the physiological
tolerances of a species, occurring
individually or in combination, may
affect the status of a species.
Vulnerability to climate change impacts
is a function of sensitivity to those
changes, exposure to those changes, and
adaptive capacity (IPCC 2007, p. 89;
Glick et al. 2011, pp. 19–22). As
described above, in evaluating the status
of a species, the Service uses the best
scientific and commercial data
available, and this includes
consideration of direct and indirect
effects of climate change. As is the case
with all potential threats, if a species is
currently affected or is expected to be
affected by one or more climate-related
impacts, this does not necessarily mean
the species is an endangered or
threatened species as defined under the
Act. If a species is listed as endangered
or threatened, this knowledge regarding
its vulnerability to, and impacts from,
climate-associated changes in
environmental conditions can be used
to help devise appropriate strategies for
its recovery.
While we do not have specific
information concerning the effect of
climate change on spring pygmy sunfish
and its habitat, we do know that climate
affects groundwater budgets (inflow and
outflow) by influencing precipitation
and evaporation and, therefore, the rates
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and distribution of recharge of the
aquifer. Climate also affects human
demands for groundwater and affects
plant transpiration from shallow
groundwater in response to solar energy
and changing depths to the water table
(Likens 2009, p. 91). Chronic regional
drought between 2000 and 2005 within
the Tennessee Valley decreased rates of
surface water flow and aquifer recharge.
Water extraction (of both groundwater
and surface water) during drought
periods exacerbated damage to the
spring pygmy sunfish and its habitat
(Sandel 2009, p. 15).
Long-term droughts have impacts on
groundwater by increasing groundwater
extraction for public consumption and
agriculture, which in turn does not
replenish surface waters (Likens 2009,
p. 91). The prolonged drought within
northern Alabama during 2006 to 2008
was exceptional (Jandebeur 2012, p. 13)
and, along with the severe drought of
1950 to 1963 (Jandebeur 2012, p. 13),
may have contributed to the demise of
the Pryor Spring/Branch population of
the spring pygmy sunfish by increasing
toxic concentrations of herbicides and
by increasing the desiccation of aquatic
vegetation.
Conservation Efforts To Reduce or
Eliminate Other Natural or Manmade
Factors
The CCAA will likely reduce some of
the threats to groundwater caused by
climate change within the upper portion
of the species’ range by minimizing
impacts and helping to maintain
groundwater recharge of the aquifer,
protecting surface water flow, and
limiting groundwater extraction. Under
the CCAA, the Service will provide
technical assistance and groundwater
management advice. Additionally,
adaptive management measures of the
CCAA concern groundwater usage,
including pumping from the aquifer and
avoidance of temporary or permanent
ground water removal installations.
Also under the CCAA, the landowner
will not engage in practices that may
disturb water quality during low water
levels in drought periods, such as
pesticide and herbicide use, stock farm
ponds, and aquaculture, within the
designated protected area. These
conservation measures will help protect
the species on this property in the near
term and also minimize any incidental
take of the species that might occur as
a result of conducting other covered
activities, should the species become
listed in our final determination.
However, because of anthropogenic
factors such as urbanization or intensive
agriculture, these conservation measures
may be inadequate during drought
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Summary of Factor E
In summary, habitat fragmentation
and its resulting effects on gene flow
and potential demographic impacts
within the population is a substantial
threat and is affecting the spring pygmy
sunfish’s continued existence. Climate
change, in particular drought, affects
groundwater budgets (inflow and
outflow) by influencing the rates and
distribution of recharge of the aquifer,
affects human demands for
groundwater, and affects plant
transpiration from shallow groundwater
reserves. Based on the best available
information, we conclude that the
spring pygmy sunfish faces threats from
other natural or manmade factors
affecting its continued existence. These
threats continue despite the beneficial
effects of the CCAA.
Finding
As required by the Act, we conducted
a review of the status of the species and
considered the five factors in assessing
whether the spring pygmy sunfish is
endangered or threatened throughout all
or a significant portion of its range. We
examined the best scientific and
commercial information available
regarding the past, present, and future
threats faced by the spring pygmy
sunfish. We reviewed the petition,
information available in our files, and
other available published and
unpublished information, and we
consulted with recognized spring
pygmy sunfish experts and other
Federal and State agencies.
The identified threats to the spring
pygmy sunfish are attributable to
Factors A, D, and E, as described in
more detail in the Summary of
Information Pertaining to the Five
Factors section above. The primary
threat to the species is from habitat
modification (Factor A) in the form of
planned urban and industrial
development of land adjacent to spring
pygmy sunfish habitat and the resultant
impacts to the surrounding aquifer
recharge area, coupled with ongoing
threats associated with ground and
surface water withdrawal and water
quality within the spring systems where
this species currently occurs and
historically occurred. We find that this
threat of increased urban and industrial
development and the associated
infrastructure, along with the current
human use of the area, is a threat to the
spring pygmy sunfish, causing direct
mortality as well as permanent loss,
fragmentation, or alteration of its
habitat.
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The degradation of habitat throughout
the species’ range is ongoing despite the
protections afforded by existing Federal
and State laws and policies (Factor D).
Habitat fragmentation and its resulting
effects on gene flow and potential
demographic impacts within the
population is a threat (Factor E) and is
affecting the spring pygmy sunfish’s
continued existence. The recently
established CCAA provides a measure of
protection for the species in the upper
reach of the population, with the
implementation of conservation
measures that increase or preserve water
quantity and reduce water quality
degradation and prohibit any potentially
damaging land use actions in that area
(Factor A). However, these conservation
measures only extend to that portion of
the population enrolled in the CCAA,
which protects 24 percent of the total
occupied habitat. Although this CCAA
reduces some of the threats under
Factors A and E, the CCAA is not able
to ameliorate all of the threat factors to
this species rangewide.
Based on our evaluation of the best
scientific and commercial information
available regarding the past, present,
and future threats faced by the spring
pygmy sunfish, we have determined the
continued existence of the spring pygmy
sunfish is under threat from: Ongoing
and planned urban and industrial
development and associated activities;
ongoing agricultural practices, including
water extraction from groundwater and
surface water; the reduction of aquifer
recharge, resulting in changes in
hydrology; surface and groundwater
pollution; past and present use of
fertilizers and pesticides; climate
change; inadequate regulatory
mechanisms; and habitat fragmentation
and resultant interruption in gene flow.
These threats exist despite the beneficial
effects of the CCAA. Because the species
faces these threats throughout its
extremely limited range, we find that
the spring pygmy sunfish is warranted
for listing throughout its range.
Status Evaluation
The Act defines an endangered
species as any species that is in danger
of extinction throughout all or a
significant portion of its range, and a
threatened species as one that is likely
to become endangered in the foreseeable
future throughout all or a significant
portion of its range. In this proposal of
the status of the spring pygmy sunfish,
we take into account the protection
afforded to the springhead and upper
portion of the population through the
established CCAA (helping to moderate
threats under Factors A and E), and look
carefully at future potential threats,
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especially the potential impact of
residential and commercial
development, which is currently only in
the planning stage. Based on our
evaluation of the best available
scientific and commercial information
related to the extremely restricted range
of the species, threats to it and its
habitat, future potential threats, and
conservation measures currently
underway through an established
CCAA, we have determined that the
species is threatened by multiple factors
(Factors A, D, and E) throughout all of
its range. Specifically, we have
determined that the species is likely to
become endangered in the foreseeable
future, and therefore meets the
definition of a threatened species.
Threatened status was determined to be
proposed for the spring pygmy sunfish
because it is not considered to be in
immediate danger of extinction
primarily due to the ongoing
conservation measures in the CCAA,
which offers protection to the
Beaverdam springhead and the most
robust portion of the population. In
addition, impacts to the species from
large-scale industrial and residential
development adjacent to the spring are
not imminent, as developments are still
in the planning stage. The species is not
endangered, because it is not currently
in immediate danger of extinction, but
as noted, we find that it is likely to
become in danger of extinction
throughout its range in the foreseeable
future, which is the definition of a
threatened species. Because the range of
the species consists of a single
occurrence location, and we have
determined that the species is at risk of
becoming endangered in that location,
we do not need to further analyze
whether there may be a significant
portion of the range of the species that
has a different status.
Available Conservation Measures
Conservation measures provided to
species listed as endangered or
threatened under the Act include
recognition, recovery actions,
requirements for Federal protection, and
prohibitions against certain practices.
Recognition of a species through listing
results in increased public awareness
and more focused conservation efforts
by Federal, State, Tribal, and local
agencies; private organizations; and
individuals. The Act encourages
cooperation with the States and requires
that recovery actions be carried out for
all listed species. The protection
measures required of Federal agencies
and the prohibitions against certain
activities involving listed wildlife are
discussed, in part, below, and
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additionally in the Effects of Critical
Habitat Designation section of this
proposed rule below.
The primary purpose of the Act is the
conservation of endangered and
threatened species and the ecosystems
upon which they depend. The ultimate
goal of such conservation efforts is the
recovery of these listed species, so that
they no longer need the protective
measures of the Act. Subsection 4(f) of
the Act requires the Service to develop
and implement recovery plans for the
conservation of endangered and
threatened species. The recovery
planning process involves the
identification of actions that are
necessary to halt or reverse the species’
decline by addressing the threats to its
survival and recovery. The goal of this
process is to restore listed species to a
point where they are secure, selfsustaining, and functioning components
of their ecosystems.
Recovery planning includes the
development of a recovery outline
shortly after a species is listed,
preparation of a draft and final recovery
plan, and revisions to the plan as
significant new information becomes
available. The recovery outline guides
the immediate implementation of urgent
recovery actions and describes the
process to be used to develop a recovery
plan. The recovery plan identifies sitespecific management actions that will
achieve recovery of the species,
measurable criteria that determine when
a species may be downlisted or delisted,
and methods for monitoring recovery
progress. Recovery plans also establish
a framework for agencies to coordinate
their recovery efforts and provide
estimates of the cost of implementing
recovery tasks. Recovery teams
(comprised of species experts, Federal
and State agencies, nongovernment
organizations, and stakeholders) are
often established to develop recovery
plans. When completed, the recovery
outline, draft recovery plan, and the
final recovery plan will be available on
our Web site (https://www.fws.gov/
endangered), or from our Mississippi
Ecological Services Field Office (see FOR
FURTHER INFORMATION CONTACT).
Implementation of recovery actions
generally requires the participation of a
broad range of partners, including other
Federal agencies, States, Tribal,
nongovernmental organizations,
businesses, and private landowners.
Examples of recovery actions include
habitat restoration (e.g., restoration of
native vegetation), research, captive
propagation and reintroduction, and
outreach and education. The recovery of
many listed species cannot be
accomplished solely on Federal lands
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because their range may also occur on
non-Federal lands. To achieve recovery
of these species requires cooperative
conservation efforts on private, State,
and Tribal lands. The CCAA between
the Service, Belle Mina Farms Ltd., and
the Land Trust identifies several
strategies that will support recovery
efforts, including: (1) Maintenance of
vegetation buffer zones along the
springs; (2) prohibition of cattle within
the spring; (3) prohibition of
deforestation, land clearing, industrial
development, residential development,
aquaculture, temporary or permanent
ground water removal installations,
stocked farm ponds, pesticide and
herbicide use, and impervious surface
installation within the protected area of
the CCAA; and (4) establishment of a
biological monitoring program for the
spring pygmy sunfish and its habitat.
If this species is listed, funding for
recovery actions will become available
from a variety of sources, including
Federal budgets, State programs, and
cost share grants for non-Federal
landowners, the academic community,
and nongovernmental organizations. In
addition, under section 6 of the Act, the
State of Alabama would be eligible for
Federal funds to implement
management actions that promote the
protection and recovery of the spring
pygmy sunfish. Information on our grant
programs that are available to aid
species recovery can be found at:
https://www.fws.gov/grants.
Although the spring pygmy sunfish is
only proposed for listing under the Act
at this time, please let us know if you
are interested in participating in
recovery efforts for this species.
Additionally, we invite you to submit
any new information on this species
whenever it becomes available and any
information you may have for recovery
planning purposes (see FOR FURTHER
INFORMATION CONTACT).
Section 7(a) of the Act requires
Federal agencies to evaluate their
actions with respect to any species that
is proposed or listed as endangered or
threatened and with respect to its
critical habitat, if any is designated.
Regulations implementing this
interagency cooperation provision of the
Act are codified at 50 CFR part 402.
Section 7(a)(4) of the Act requires
Federal agencies to confer with the
Service on any action that is likely to
jeopardize the continued existence of a
species proposed for listing or result in
destruction or adverse modification of
proposed critical habitat. If a species is
listed subsequently, section 7(a)(2) of
the Act requires Federal agencies to
ensure that activities they authorize,
fund, or carry out are not likely to
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jeopardize the continued existence of
the species or destroy or adversely
modify its critical habitat. If a Federal
action may affect a listed species or its
critical habitat, the responsible Federal
agency must enter into formal
consultation with the Service.
Federal agency actions within the
species’ habitat that may require
conference or consultation or both as
described in the preceding paragraph
include Federal activities that may
affect spring pygmy sunfish, including,
but not limited to: The carrying out or
the issuance of permits for discharging
fill material on wetlands for road or
highway construction; installation of
utility easements; development of
residential, industrial, and commercial
facilities; unsustainable farming
practices, including indiscriminate use
of chemicals, and decreasing buffers
around fields and drainage ditches and
swales; channeling or other stream
geomorphic changes; discharge of
contaminated or sediment laden waters;
wastewater facility development; and
excessive groundwater and surface
water extraction. Additional actions that
may require conference or consultation
or both include:
(1) Actions that would significantly
alter the structure and function of the
spring system. Such actions or activities
could include, but are not limited to, the
filling or excavation of spring heads,
spring pools, spring-fed wetlands, and
spring runs. The filling or excavation of
the spring system would alter the
hydrology of the site and would destroy
the vegetation, water quality, and water
quantity where spring pygmy sunfish
spends all of its life stages. The filling
or excavation of the spring systems
could result in the direct mortality of
the species where the species is known
to occur.
(2) Actions that would significantly
alter the aquatic vegetation structure in
and around the spring associated
wetland. Such actions or activities
could include, but are not limited to,
vegetation cutting or herbicide usage for
expanding or maintaining roads,
construction of new roads, maintenance
of agricultural fields, construction of
new agricultural fields, development of
new residences, development of new
commercial establishments, or
industrial development. Alteration of
the vegetation structure would likely
change the spring-fed wetland
characteristics by changing the
microhabitat (e.g., change in
temperature and humidity levels) and
could result in direct mortality of
individuals and egg clutches through
desiccation from sun exposure.
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(3) Actions that may alter the natural
outflow and quantity of water from the
spring head and through the spring run
into the stream channels. Such actions
or activities could include, but are not
limited to, changes in the hydrology of
Beaverdam Spring/Creek and related
recharge area and aquifer. These actions
include, but are not limited to, excessive
water extraction for public, municipal,
industrial, and agricultural usages.
(4) Actions that would significantly
degrade water quality parameters such
as pH, alkalinity, conductivity,
turbidity, and others (i.e., contaminants,
excess nutrients). Stormwater discharge
laden with chemicals and sediments can
enter groundwater and surface water
systems. Decreasing water quantity
concentrates chemicals and also
encourages eutrophic (nutrient rich)
conditions.
The Act and its implementing
regulations set forth a series of general
prohibitions and exceptions that apply
to all endangered wildlife. The
prohibitions of section 9(a)(1) of the Act,
and its implementing regulations at 50
CFR 17.21, make it illegal for any person
subject to the jurisdiction of the United
States to take (which includes harass,
harm, pursue, hunt, shoot, wound, kill,
trap, capture, or collect, or to attempt
any of these), import, export, ship in
interstate commerce in the course of
commercial activity, or sell or offer for
sale in interstate or foreign commerce
any listed species. The regulations at 50
CFR 17.31 extend the prohibitions listed
above to threatened species, with
certain exceptions. Under the Lacey Act
(18 U.S.C. 42–43; 16 U.S.C. 3371–3378),
it is also illegal to possess, sell, deliver,
carry, transport, or ship any such
wildlife that has been taken illegally.
Certain exceptions apply to agents of the
Service and State conservation agencies.
We may issue permits to carry out
otherwise prohibited activities
involving endangered and threatened
wildlife species under certain
circumstances. Regulations governing
permits are codified at 50 CFR 17.22 for
endangered species, and at 17.32 for
threatened species. With regard to
endangered wildlife, a permit must be
issued for take for the following
purposes: for scientific purposes, to
enhance the propagation or survival of
the species, and for incidental take in
connection with otherwise lawful
activities.
It is our policy, as published in the
Federal Register on July 1, 1994 (59 FR
34272), to identify, to the maximum
extent practicable at the time a species
is listed, those activities that would or
would not constitute a violation of
section 9 of the Act. The intent of this
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policy is to increase public awareness of
the effect of a proposed listing on
proposed and ongoing activities within
the range of the species proposed for
listing. The following activities could
potentially result in a violation of
section 9 of the Act; this list is not
comprehensive:
(1) Unauthorized collecting, handling,
possessing, selling, delivering, carrying,
or transporting of the species, including
import or export across State lines and
international boundaries, except for
properly documented antique
specimens of these taxa at least 100
years old, as defined by section 10(h)(1)
of the Act;
(2) Introduction of species that
compete with or prey upon the spring
pygmy sunfish;
(3) The unauthorized release of
biological control agents that attack this
species’ habitat or any of its life stages;
(4) Unauthorized modification of the
vegetation composition or hydrology, or
violation of any discharge or water
withdrawal permit that results in harm
or death to any individuals of this
species or that results in degradation of
its occupied habitat to an extent that
essential behaviors such as breeding,
feeding, and sheltering are impaired;
(5) Unauthorized destruction or
alteration of their habitats (such as
channelization, dredging, sloping,
removing of substrate, or discharge of
fill material) that impairs essential
behaviors, such as breeding, feeding, or
sheltering, or that results in killing or
injuring spring pygmy sunfish; and
(6) Unauthorized discharges or
dumping of toxic chemicals or other
pollutants into the aquifer directly
through wells or into the spring system
or indirectly into recharge areas
supporting spring pygmy sunfish that
kills or injures the species or that
otherwise impairs essential lifesustaining requirements, such as
breeding, feeding, or sheltering
(destruction of vegetation and
substrate).
Questions regarding whether specific
activities would constitute a violation of
section 9 of the Act should be directed
to the Mississippi Ecological Services
Field Office (see FOR FURTHER
INFORMATION CONTACT). Requests for
copies of the regulations concerning
listed animals and general inquiries
regarding prohibitions and permits may
be addressed to the U.S. Fish and
Wildlife Service, Endangered Species
Permits, 1875 Century Blvd. NE.,
Atlanta, GA 30345 (telephone 404–679–
7313; facsimile 404–679–7081).
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Critical Habitat
Background
It is our intent to discuss below only
those topics directly relevant to the
designation of critical habitat for the
spring pygmy sunfish in this section of
the proposed rule.
Critical habitat is defined in section 3
of the Act as:
(1) The specific areas within the
geographical area occupied by the
species, at the time it is listed in
accordance with the Act, on which are
found those physical or biological
features
(a) Essential to the conservation of the
species and
(b) Which may require special
management considerations or
protection; and
(2) Specific areas outside the
geographical area occupied by the
species at the time it is listed, upon a
determination that such areas are
essential for the conservation of the
species.
Conservation, as defined under
section 3 of the Act, means to use and
the use of all methods and procedures
that are necessary to bring an
endangered or threatened species to the
point at which the measures provided
under the Act are no longer necessary.
Such methods and procedures include,
but are not limited to, all activities
associated with scientific resources
management such as research, census,
law enforcement, habitat acquisition
and maintenance, propagation, live
trapping, and transplantation, and, in
the extraordinary case where population
pressures within a given ecosystem
cannot be otherwise relieved, may
include regulated taking.
Critical habitat receives protection
under section 7 of the Act through the
requirement that Federal agencies
ensure, in consultation with the Service,
that any action they authorize, fund, or
carry out is not likely to result in the
destruction or adverse modification of
critical habitat. The designation of
critical habitat does not affect land
ownership or establish a refuge,
wilderness, reserve, preserve, or other
conservation area. Such designation
does not allow the government or public
to access private lands. Such
designation does not require
implementation of restoration, recovery,
or enhancement measures by nonFederal landowners. Where a landowner
seeks or requests Federal agency
funding or authorization for an action
that may affect a listed species or
critical habitat, the consultation
requirements of section 7(a)(2) of the
Act would apply, but even in the event
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of a destruction or adverse modification
finding, the obligation of the Federal
action agency and the landowner is not
to restore or recover the species, but to
implement reasonable and prudent
alternatives to avoid destruction or
adverse modification of critical habitat.
Under the first prong of the Act’s
definition of critical habitat, areas
within the geographic area occupied by
the species at the time it is listed are
included in a critical habitat designation
if they contain physical or biological
features (1) which are essential to the
conservation of the species and (2)
which may require special management
considerations or protection. In
identifying those physical and
biological features within an area, we
focus on the principal biological or
physical constituent elements (primary
constituent elements (PCEs) such as
roost sites, nesting grounds, seasonal
wetlands, water quality, tide, soil type)
that are essential to the conservation of
the species. Primary constituent
elements are the elements of physical or
biological features that, when laid out in
the appropriate quantity and spatial
arrangement to provide for a species’
life-history processes, are essential to
the conservation of the species.
Under the second prong of the Act’s
definition of critical habitat, we can
designate critical habitat in areas
outside the geographic area occupied by
the species at the time it is listed, upon
a determination that such areas are
essential for the conservation of the
species. We designate critical habitat in
areas outside the geographic area
occupied by a species only when a
designation limited to occupied habitat
would be inadequate to ensure the
conservation of the species.
Section 4 of the Act requires that we
designate critical habitat on the basis of
the best scientific and commercial data
available. Further, our Policy on
Information Standards under the
Endangered Species Act (published in
the Federal Register on July 1, 1994 (59
FR 34271)), the Information Quality Act
(section 515 of the Treasury and General
Government Appropriations Act for
Fiscal Year 2001 (Pub. L. 106–554; H.R.
5658)), and our associated Information
Quality Guidelines provide criteria,
establish procedures, and provide
guidance to ensure that our decisions
are based on the best scientific data
available. They require our biologists, to
the extent consistent with the Act and
with the use of the best scientific data
available, to use primary and original
sources of information as the basis for
recommendations to designate critical
habitat.
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When we are determining which areas
should be designated as critical habitat,
our primary source of information is
generally the information developed
during the listing process for the
species. Additional information sources
may include the recovery plan for the
species, articles in peer-reviewed
journals, conservation plans developed
by States and counties, scientific status
surveys and studies, biological
assessments, other unpublished
materials, or experts’ opinions or
personal knowledge.
Habitat is dynamic, and species may
move from one area to another over
time. We recognize that critical habitat
designated at a particular point in time
may not include all of the habitat areas
that we may later determine are
necessary for the recovery of the
species. For these reasons, a critical
habitat designation does not signal that
habitat outside the designated area is
unimportant or may not be needed for
recovery of the species. If we list the
spring pygmy sunfish and designate
critical habitat for the species, areas that
are important to the conservation of the
species, both inside and outside the
critical habitat designation, would
continue to be subject to: (1)
Conservation actions implemented
under section 7(a)(1) of the Act, (2)
regulatory protections afforded by the
requirement in section 7(a)(2) of the Act
for Federal agencies to ensure their
actions are not likely to jeopardize the
continued existence of any endangered
or threatened species, and (3) the
prohibitions of section 9 of the Act if
actions occurring in these areas may
affect the species. Federally funded or
permitted projects affecting listed
species outside their designated critical
habitat areas may still result in jeopardy
findings in some cases. These
protections and conservation tools
would continue to contribute to
recovery of this species. Similarly,
critical habitat designations made on the
basis of the best available information at
the time of designation would not
control the direction and substance of
future recovery plans, habitat
conservation plans (HCPs), or other
species conservation planning efforts if
new information available at the time of
these planning efforts calls for a
different outcome.
Prudency Determination
Section 4(a)(3) of the Act, as
amended, and implementing regulations
(50 CFR 424.12) require that the
Secretary designate critical habitat at the
time the species is determined to be
endangered or threatened to the
maximum extent prudent and
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determinable. These regulations (50 CFR
424.12(a)(1)) state that the designation
of critical habitat is not prudent when
one or both of the following situations
exist: (1) The species is threatened by
taking or other human activity, and
identification of critical habitat can be
expected to increase the degree of threat
to the species; or (2) such designation of
critical habitat would not be beneficial
to the species.
As we have discussed above under
the Factor B analysis, there is currently
no imminent threat of take attributed to
collection (for commercial, recreational,
scientific, or educational purposes) of
this species. Moreover, there is no
information to indicate that
identification of critical habitat is
expected to create such a threat to the
species. In the absence of a finding that
the designation of critical habitat would
increase threats to a species, then a
prudent finding is warranted if there are
any benefits to a critical habitat
designation. Potential benefits of
designation include: (1) Triggering
consultation under section 7 of the Act,
in new areas for actions in which there
may be a Federal nexus where it would
not otherwise occur because, for
example, it is or has become
unoccupied or the occupancy is in
question; (2) focusing conservation
activities on the most essential features
and areas; (3) providing educational
benefits to State or county governments
or private entities; and (4) preventing
people from causing inadvertent harm
to the species.
The primary regulatory effect of
critical habitat is the section 7(a)(2)
requirement that Federal agencies
refrain from taking any action that
destroys or adversely modifies critical
habitat. Lands proposed for designation
as critical habitat would be subject to
Federal actions that trigger section 7
consultation requirements. These
include land management planning and
Federal agency actions. There may also
be educational or outreach benefits to
the designation of critical habitat.
Critical habitat designation identifies
those physical and biological features of
the habitat essential to the conservation
of spring pygmy sunfish and that may
require special management and
protection. Accordingly, this
designation would provide information
to individuals, local and State
governments, and other entities engaged
in activities or long-range planning in
areas essential to the conservation of the
species. Conservation of the spring
pygmy sunfish and the essential features
of its habitat requires habitat
management, protection, and
restoration, which would be facilitated
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by knowledge of habitat locations and
the physical and biological features of
the habitat. Based on this information,
we believe critical habitat would be
beneficial to this species. Therefore, we
have determined that the designation of
critical habitat for spring pygmy sunfish
is prudent.
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Determinability
Our regulations (50 CFR 424.12(a)(2))
state that critical habitat is not
determinable when one or both of the
following situations exist: (1)
Information sufficient to perform
required analysis of the impacts of the
designation is lacking, or (2) the
biological needs of the species are not
sufficiently well known to permit
identification of an area as critical
habitat.
Delineation of critical habitat requires
identification of the physical and
biological habitat features that are
essential to the conservation of the
species. We have reviewed the available
information pertaining to the known
distribution of spring pygmy sunfish
and the characteristics of the habitat
currently occupied. This information
represents the best scientific and
commercial data available and leads us
to conclude that, although available
information is limited, it is sufficient to
identify specific areas that meet the
definition of critical habitat. Therefore,
we have found that critical habitat is
determinable for spring pygmy sunfish.
Physical or Biological Features
In accordance with section 3(5)(A)(i)
and 4(b)(1)(A) of the Act and regulations
at 50 CFR 424.12, in determining which
areas within the geographical area
occupied by the species at the time of
listing to designate as critical habitat,
we consider the physical or biological
features essential to the conservation of
the species and which may require
special management considerations or
protection. These include, but are not
limited to:
(1) Space for individual and
population growth and for normal
behavior;
(2) Food, water, air, light, minerals, or
other nutritional or physiological
requirements;
(3) Cover or shelter;
(4) Sites for breeding, reproduction, or
rearing (or development) of offspring;
and
(5) Habitats that are protected from
disturbance or are representative of the
historical, geographical, and ecological
distributions of a species.
We derive the specific physical and
biological features required for the
spring pygmy sunfish from studies of
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this species’ habitat, ecology, and life
history as described in the Background
section of this proposed rule and
information presented below. There is
limited information on this species’
specific habitat requirements, other than
it requires springs and connecting
spring-fed reaches and wetlands; an
adequate groundwater and surface water
hydrology; and clean, cool water and
the associated vegetation and
invertebrates. To identify the physical
and biological needs of the species, we
have relied on current conditions at the
locations where the species exists today
and the limited information we have on
historical sites, limited information
available on this species and its close
relatives, and factors associated with the
decline and extirpation of this and other
spring-associated fish species.
Space for Individual and Population
Growth and for Normal Behavior
Spring pygmy sunfish depend on
geomorphically stable spring systems
including the spring head, spring run,
and spring pools. The spring systems
used by the species also include
transition zones between these features
on moderately low-gradient topographic
slopes that feather out into spring-fed
wetland pools. The spring pygmy
sunfish inhabits spring pools, spring
runs, and spring-fed streams and pools
with substrates of silt, sand, and gravel.
The current range of the spring pygmy
sunfish is reduced to localized sites due
to fragmentation of the spring systems
on which it depends. Fragmentation of
the species’ habitat has isolated
populations and reduced available
space for spawning, rearing of young,
concealment, and foraging. As a result,
the spring pygmy sunfish’s adaptive
capability has been reduced, and the
likelihood of local extinctions has
increased (Burkhead et al. 1997, pp.
397–399; Hallerman 2003, pp. 363–364).
Connectivity of spring systems
maintains spawning, foraging, and
resting sites, and allows for gene flow
throughout the population. Genetic
variation and diversity within a species
are essential for recovery, adaptation to
environmental changes, and long-term
viability (capability to live, reproduce,
and develop) (Harris 1984, pp. 93–107;
Noss and Cooperrider 1994, pp. 282–
297; Fluker et al. 2007, p. 2). Long-term
viability is founded on space for
numerous interbreeding, local
populations throughout the range
(Harris 1984, pp. 93–107).
Therefore, based on the information
above, we identify springs and
connecting spring-fed reaches and
wetlands of geomorphically stable,
relatively low-gradient, headwater
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springs with spring heads, spring runs,
and spring pools that filter into shallow
vegetated wetlands to be an essential
physical or biological feature for the
spring pygmy sunfish. The connectivity
of these habitats is essential in
accommodating feeding, breeding,
growth, and other normal behaviors of
the spring pygmy sunfish and in
promoting gene flow within the
population.
Food, Water, Air, Light, Minerals, or
Other Nutritional or Physiological
Requirements
Water Quality
Exceptional water quality at the
spring heads and pools, and adequate
water quality throughout the habitat,
maintained by unobstructed water flow
through connected spring habitats, are
essential for normal behavior, growth,
and viability during all life stages of the
spring pygmy sunfish. Suitable habitat
conditions for the spring pygmy sunfish
have not been investigated thoroughly;
however, some data specific to the
species are available for the following
water quality parameters: pH, water
temperature, specific conductivity
(ability of water to conduct an electric
current, based on dissolved solids in the
water), and alkalinity (capacity of
solutes in an aqueous system to
neutralize acid as HCO3). Spring pygmy
sunfish males establish territories and
spawn in late February through April,
when water quality parameters are
within a suitable pH range of 6.0 to 7.7,
and water temperatures are between
57.2 and 68 °F (14 and 20 °C) (Mettee
2008, p. 36; Sandal, 2007, p. 2; Rakes et
al. 2011, p. 4). A specific conductivity
of 5.5 to 14.2 micro Siemens per
centimeter at 61 °F (16 °C) and
alkalinity of 20 to 66 milligrams per liter
(mg/l) have been reported from habitat
occupied by spring pygmy sunfish
(Jandebeur 1997, p. 34).
Essential water quality attributes for
the spring pygmy sunfish may be
inferred from those of other fish species
living in medium water flow streams
along with baseline spring and
subsurface water quality information
obtained from systems within
Limestone County, adjacent counties,
and elsewhere. Based on yearly
averages, these include: (1) Dissolved
oxygen levels greater than 6 parts per
million (ppm); (2) temperatures between
45 and 80 °F (7.2 and 26.7 °C), with
spring egg incubation temperatures from
54 to 65 °F (12.2 to 18.3 °C); (3) specific
conductivity of less than approximately
300 micro Siemens per centimeter at
80 °F (26.7 °C); and (4) concentrations of
free or suspended solids (organic and
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inorganic sediments) less than 15
Nephelometric Turbidity Units (NTU;
units used to measure sediment
discharge) and 20 mg/L total suspended
solids (TSS; measured as mg/L of
sediment in water) (Teels et al. 1975,
pp. 8–9; Ultschet et al. 1978, pp. 99–
101; Ingersoll et al. 1984, pp. 131–138;
Chandler et al. 1987, pp. 56–57; Kundell
and Rasmussen 1995, pp. 211–212;
Henley et al. 2000, pp. 125–139; Meyer
and Sutherland 2005, pp. 43–64;
McGregor et al. 2008, pp. 7–9; Knight
2011, pp. 3–8).
Nonpoint and point sources of
ammonia and chlorine from commercial
water extraction facilities and
agricultural fields may be primary
factors in reducing the quality of spring
run waters for spring pygmy sunfish.
Agricultural withdrawals can reduce or
eliminate the volume of groundwater
that is being discharged into the species’
habitat and affect water temperatures
and other physical parameters.
Temperature greatly influences the
form and toxicity of ammonia and
chlorine. Higher temperatures result in
a shift from the nontoxic ammonium ion
(NH4+) to highly toxic ammonia (NH3).
Chlorine is also more toxic at higher
temperatures (Hoffman et al. 2003, p.
681). Thus, higher temperatures during
the summer, along with drought and
reduced spring flows, may intensify
impacts from these two chemicals on
the life stages and habitats of the spring
pygmy sunfish.
Therefore, we identify the following
water quality parameters to be an
essential physical or biological feature
for the spring pygmy sunfish, based on
yearly averages: Optimal temperatures
of 57.2 to 68 °F (14 to 20 °C) and not
exceeding 80 °F (26.7 °C); pH of 6.0 to
7.7; dissolved oxygen of 6.0 ppm or
greater; specific conductivity no greater
than 300 micro Siemens per centimeter
at 80 °F (26.7 °C); and low
concentrations of free or suspended
solids with turbidity measuring less
than 15 NTU and 20 mg/L TSS.
Water Quantity
Water flow and water quantity may
also vary according to season,
precipitation events, and human
activities, such as groundwater and
surface water extraction, within the
recharge area of the spring system.
Agriculture, industrial or human
consumption, silviculture, maintenance
of roadways and utilities, and
urbanization and industrialization
projects are activities that may use water
that would otherwise recharge spring
systems. Connectivity of spring systems
is also important for maintaining water
quality. Adequate groundwater and
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recharge rates, and spring water
outflow, are important to the
conservation of the spring pygmy
sunfish.
Therefore, based on the information
above, we identify a hydrologic flow
regime (magnitude, frequency, duration,
and seasonality of discharge overtime)
necessary to maintain spring habitats to
be an essential physical or biological
feature for the spring pygmy sunfish.
The instream flow from groundwater
sources (spring and seep) maintains a
velocity and a continuous daily
discharge from the aquifer that allows
for connectivity between habitats.
Instream flow is stable and does not
vary during water extraction, and the
aquifer recharge maintains adequate
levels to supply water flow to the spring
head. The flow regime does not
significantly change during storm
events.
that the species decreases as distances
increase from spring pools.
Therefore, based on the information
above, we identify aquatic, emergent
and semi-emergent vegetation along the
margins of spring runs and submergent
vegetation that is adequate for breeding,
reproducing, and rearing young;
providing cover and shelter from
predators; and supporting the prey base
of aquatic macroinvertebrates eaten by
spring pygmy sunfish to be an essential
physical or biological feature for the
spring pygmy sunfish.
Primary Constituent Elements for the
Spring Pygmy Sunfish
Under the Act and its implementing
regulations, we are required to identify
the physical and biological features
essential to the conservation of the
spring pygmy sunfish in areas occupied
at the time of listing (i.e., areas that are
currently occupied), focusing on the
Food
features’ primary constituent elements.
All pygmy sunfish species stalk
We consider primary constituent
invertebrates by using the dense
elements (PCEs) to be the elements of
submergent vegetation within the spring physical and biological features that
system to conceal their foraging activity provide for a species’ life-history
(Walsh and Burr 1984, pp. 45–46). The
processes and that are essential to the
aquatic vegetation provides a ready
conservation of the species.
Based on our current knowledge of
source of food (Petty et al. 2011, p. 2)
the physical or biological features and
and habitat for invertebrates. Daphnia,
amphipods, chironomid larvae, and
habitat characteristics required to
small snails are the major components
sustain the species’ life-history
of the spring pygmy sunfish’s diet (Slate processes, as discussed above, we
1993, p. 3; Sandel 2009, p. 9).
determine that the PCEs specific to the
spring pygmy sunfish are:
Cover or Shelter and Sites for Breeding,
(1) Spring system. Springs and
Reproduction, or Rearing
connecting spring-fed reaches and
The spring pygmy sunfish relies
wetlands that are geomorphically stable
heavily on aquatic and emergent
and relatively low-gradient. This
vegetation in the shallow water along
includes headwater springs with spring
the margins of the runs and pools of the heads, spring runs, and spring pools
spring systems where the fish occurs.
that filter into shallow, vegetated
The vegetation provides cover and
wetlands.
shelter necessary for breeding,
(2) Water quality. Yearly averages of
reproduction and growth of offspring,
water quality with optimal temperatures
concealment from predators, and
of 57.2 to 68 °F (14 to 20 °C) and not
foraging. Species of submergent and
exceeding 80 °F (26.7 °C); pH of 6.0 to
emergent vegetation providing
7.7; dissolved oxygen of 6.0 ppm or
important habitat for the spring pygmy
greater; specific conductivity no greater
sunfish include clumps and stands of
than 300 micro Siemens per centimeter
Sparganium spp. (bur reed),
at 80 °F (26.7 °C); and low
Ceratophyllum spp. (coontail),
concentrations of free or suspended
Nasturtium officinale (watercress),
solids with turbidity measuring less
Juncus spp. (rush), Carex spp. (sedges),
than 15 NTU and 20 mg/L TSS.
(3) Hydrology. A hydrologic flow
Nuphar luteum (yellow pond lily),
regime (magnitude, frequency, duration,
Myriophyllum spp. (parrot feather),
and seasonality of discharge over time)
Utricularia sp. (bladderwort),
necessary to maintain spring habitats.
Polygonum spp. (smartweed), Lythrum
The instream flow from groundwater
salicaria (purple loosestrife), and
sources (springs and seeps) maintains
Callitriche spp. (water starwort)
an adequate velocity and a continuous
(Mayden 1993, p. 11; Jandebeur 1997,
daily discharge from the aquifer that
pp. 42–44; Sandel 2011, pp. 3–5, 9–11).
allows for connectivity between
Sandel (2009, p. 14) suggested that
habitats. Instream flow is stable and
concentration of spring pygmy sunfish
does not vary during water extraction,
may be associated with thick and
abundant Ceratophyllum echinatum and and the aquifer recharge maintains
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adequate levels to supply water flow to
the spring head. The flow regime does
not significantly change during storm
events.
(4) Vegetation and Prey Base. Aquatic,
emergent and semi-emergent vegetation
along the margins of spring runs and
submergent vegetation that is adequate
for breeding, reproducing, and rearing
young; providing cover and shelter from
predators; and supporting the prey base
of aquatic macroinvertebrates eaten by
spring pygmy sunfish. Important species
of submergent and emergent vegetation
include clumps and stands of
Sparganium spp. (bur reed),
Ceratophyllum spp. (coontail),
Nasturtium officinale (watercress),
Juncus spp. (rush), Carex spp. (sedges),
Nuphar luteum (yellow pond lily),
Myriophyllum spp. (parrot feather),
Utricularia spp. (bladderwort),
Polygonum spp. (smartweed), Lythrum
salicaria (purple loosestrife), and
Callitriche spp. (water starwort).
Special Management Considerations or
Protections
When designating critical habitat, we
assess whether the specific areas within
the geographical area occupied by the
species at the time of listing contain
features which are essential to the
conservation of the species and which
may require special management
considerations or protection.
We find that the essential features
within the area occupied at the time of
listing may require special management
consideration or protection due to
threats to spring pygmy sunfish and or
its habitat. The sole proposed unit that
is occupied is adjacent to roads, homes,
or other manmade structures in which
various activities in or adjacent to the
critical habitat unit may affect one or
more of the physical and biological
features. The features essential to the
conservation of this species are the
spring systems that may require special
management considerations or
protection to reduce the following
threats or potential threats: Reduction of
water quantity of the groundwater/
surface hydrology by water extraction
from springs or the aquifer that provides
water to the spring, and surface flow to
Beaverdam Creek and Pryor Branch;
changes in the composition and
abundance of vegetation in the spring;
alteration of the bottom substrate and
normal sinuosity of the system from fill
material within the spring systems and
spring-fed wetlands for development
projects; degradation of water quality
from uncontrolled discharge of
stormwater draining agricultural fields,
roads, bridges, and urban areas; careless
agricultural practices including
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unmanaged livestock grazing; and road,
bridge, and utility easement
maintenance (e.g., use of herbicides and
resurfacing or sealant materials).
Management activities that could
ameliorate these threats or potential
threats include, but are not limited to:
Establishing permanent conservation
easements or land acquisition to protect
the species on private lands;
establishing additional conservation
agreements on private lands to identify
and reduce threats to the species and its
features; minimizing habitat
disturbance, fragmentation, and
destruction by maintaining suitable fish
passage structures under roads;
providing significant buffers around the
spring components such as the spring
head, spring pool, and spring run;
monitoring and regulating the
withdrawal and use of groundwater and
surface water of the Beaverdam Spring/
Creek system; preventing the
diminishing of the aquifer recharge area
by increasing the pervious area for
percolation of rainfall back into the
aquifer; limiting impervious substrates;
and minimizing water quality
degradation by stormwater runoff with
catchment basins, vegetated bioswales,
and other appropriate best management
practices.
Criteria Used To Identify Critical
Habitat
As required by section 4(b)(2) of the
Act, in developing this proposed rule,
we used the best scientific data
available to propose critical habitat for
the spring pygmy sunfish. We reviewed
available information that pertains to
the habitat requirements of the species.
In accordance with the Act and its
implementing regulation at 50 CFR
424.12(e), we considered whether
designating additional areas outside
those currently occupied (which would
mean occupied at the time of listing) is
necessary to ensure the conservation of
the species. We are proposing to
designate critical habitat in areas within
the geographic area currently occupied
by the species (i.e., that would be
considered occupied at the time of
listing). We are also proposing to
designate specific areas outside the
geographic area currently occupied by
the species but that were historically
occupied, because such areas are
essential for the conservation of the
species.
We began our determination of which
areas to propose for critical habitat with
an assessment of the critical life-history
components of the spring pygmy
sunfish, as they relate to habitat. We
then evaluated current and historical
sites to establish what areas are
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currently occupied and contain the
physical and biological features that are
essential to the conservation of the
species and that may require special
management considerations or
protection, as well as unoccupied sites
that might be essential for the
conservation of the species. We
reviewed the available information
pertaining to historic and current
distributions, life histories, and habitat
requirements of this species. Our
sources included surveys, unpublished
reports, and peer-reviewed scientific
literature prepared by the Alabama
Department of Conservation and Natural
Resources, Alabama Geological Survey,
Athens State University, University of
Alabama, the Service, spring pygmy
sunfish researchers and others, as well
as Geographic Information System (GIS)
data (such as species occurrence data,
habitat data, land use topography,
digital aerial photography, and
ownership maps).
Currently, occupied habitat is
confined to a single population
consisting of four spring pools within
the upper Beaver Dam Spring/Creek
complex in Limestone County,
Alabama. We believe that this area
contains all PCEs to support life-history
functions essential to the conservation
of the species. However, this single
population is at risk of extirpation from
stochastic events such as periodic
droughts and from existing or potential
human-induced events (i.e.,
development, excessive water
extraction, chemical contamination). To
reduce the risk of losing this single
population through these processes, it is
important to establish additional
populations in areas where suitable
habitat exists. Therefore, in identifying
unoccupied spring/stream reaches that
could be essential for the conservation
of the spring pygmy sunfish, we first
considered the availability of potential
habitat throughout the historical range
that may be suitable for the survival and
persistence of the species. We
eliminated from consideration spring/
stream reaches without any historical
records of spring pygmy sunfish
occurrences. We identified two sites
with recorded historical occurrences of
the spring pygmy sunfish: one in Pryor
Springs in Limestone County, Alabama,
and a second in Cave Springs in
Lauderdale County, Alabama. The Cave
Spring site was excluded from
consideration because it was inundated
with the formation of Wheeler Reservoir
in 1939. However, the Pryor Spring/
Branch site, which supported a
population of spring pygmy sunfish
prior to 2007 west of Highway 31, was
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determined to have portions of the PCEs
sufficient to support the life-history
functions of the species. This currently
unoccupied stream will provide habitat
for population reintroduction into a
separate stream system and reduce the
level of stochastic threats to the species’
survival, decrease the risk of extinction
for the species, and contribute to the
species’ eventual recovery. Accordingly,
we determined that it is essential for the
conservation of the species, and
therefore propose to designate it as
critical habitat.
We delineated the critical habitat unit
boundaries by determining the
appropriate length within these streams
by identifying the upper spring head
(water source), spring pool, spring run,
spring-fed wetlands, seeps, and
ephemeral streams draining into the
spring systems. We digitized the area
boundary based upon visual
interpretation of wetland vegetation
using ARCGIS. The high water line in
springs indicates stable flow under
normal conditions. As defined at 33
CFR 329.11, the ordinary high water
line on nontidal rivers and streams is
the line on the shore established by the
fluctuations of water and indicated by
physical characteristics such as a clear,
natural water line impressed on the
bank; shelving; changes in the character
of soil; destruction of terrestrial
vegetation; the presence of litter and
debris; or other appropriate means that
consider the characteristics of the
surrounding areas. For the spring pools
and associated spring-fed wetlands, the
area was determined and delineated by
the presence of emergent vegetation
patterns and topography as noted on
aerial photographs and topographical
maps, and during field visits. In order
to set the upstream and downstream
limits of these critical habitat units, we
used the spring head as the uppermost
point, identified by topographic maps,
field visits, and available landmarks
(i.e., bridges and road crossings).
Locations of the spring pygmy sunfish
below or downstream of the spring head
were included in order to ensure
incorporation of all potential sites of
occurrence. These stream reaches were
then digitized using 7.5′ topographic
maps and ARCGIS to produce the
critical habitat maps.
When determining proposed critical
habitat boundaries, we made every
effort to avoid including developed
areas such as lands covered by
buildings, pavement, and other
structures because such lands lack
physical or biological features for spring
pygmy sunfish. The scale of the map we
prepared under the parameters for
publication within the Code of Federal
Regulations may not reflect the
exclusion of such developed lands. Any
such lands inadvertently left inside
critical habitat boundaries shown on the
maps of this proposed rule have been
excluded by text in the proposed rule
and are not proposed for designation as
critical habitat. Therefore, if the critical
habitat is finalized as proposed, a
Federal action involving these lands
would not trigger a section 7
consultation with respect to critical
habitat and the requirement of no
adverse modification unless the specific
action would affect the physical or
biological features in the adjacent
critical habitat.
The critical habitat designation is
defined by the map or maps, as
modified by any accompanying
regulatory text, presented at the end of
this document in the rule portion. We
include more detailed information on
the boundaries of the critical habitat
designation in this preamble. We will
make the coordinates or plot points or
both on which each map is based
available to the public on https://
www.regulations.gov at Docket No.
FWS–R4–ES–2012–0068, on our Web
site https://www.fws.gov/mississippiES/,
and at the Mississippi Ecological
Services Field Office (see FOR FURTHER
INFORMATION CONTACT above).
Proposed Critical Habitat Designation
We are proposing two units as critical
habitat for spring pygmy sunfish. The
critical habitat areas described below
constitute our current best assessment of
the areas that meet the definition of
critical habitat for spring pygmy
sunfish. The two areas proposed as
critical habitat are as follows: (1)
Beaverdam Spring/Creek, which is
currently occupied; and (2) Pryor
Spring/Branch, which is currently
unoccupied. Table 1 shows the
occupancy of the units and ownership
of the proposed critical habitat units for
the spring pygmy sunfish.
TABLE 1—OCCUPANCY AND OWNERSHIP OF THE PROPOSED CRITICAL HABITAT UNITS FOR THE SPRING PYGMY SUNFISH
IN LIMESTONE COUNTY, ALABAMA
[Area estimates reflect all land within the critical habitat unit boundary.]
Private ownership km
(mi); ha (ac)
Federal ownership km
(mi); ha (ac)
Yes .....................
No .......................
5.9 (3.7); 237 (586)
0.2 (0.15); 8.1 (20)
3.5 (2.21); 344 (849)
3.1 (1.95); 65.6 (162)
9.5 (5.9)
3.4 (2.1)
580.7 (1,435)
73.6 (182)
............................
6.1 (3.8); 245 (606)
6.6 (4.16); 409.6
(1,011)
12.9 (8.0)
654.3 (1,617)
Unit
Location
Occupied
1 ...............
2 ...............
Beaverdam Spring/Creek
Pryor Spring/Branch .........
Total ..
...........................................
Total length
km (mi)
Total area ha
(ac)
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* Totals may not sum due to rounding.
We present brief descriptions of each
unit and reasons why they meet the
definition of critical habitat below. The
proposed critical habitat units include
the spring systems, which are composed
of the spring heads and the flooded
spring pools and spring-fed wetlands
within Beaverdam Spring/Creek and
Pryor Spring/Branch.
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Unit 1: Beaverdam Spring/Creek,
Limestone County, Alabama
Unit 1 includes a total of 9.5 km (5.9
mi) of Beaverdam Spring/Creek,
northeast of Greenbrier, Alabama, from
the spring head, 5.6 km (3.5 mi) north
of Interstate 565, to 3.9 km (2.4 mi)
south of Interstate 565. Unit 1
encompasses Moss, Horton, and
Thorsen springs. This includes a total of
580.7 hectares (1,435 acres).
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Almost 5.9 km (3.7 mi), or 63 percent
of the stream reach, and 237 ha (586 ac)
(41 percent) of the area are privately
owned. The remaining 3.5 km (2.21 mi),
or 37 percent of the stream reach, and
344 ha (849 ac) of the area (59 percent)
are owned by the Service as part of the
Wheeler National Wildlife Refuge.
Unit 1 is currently occupied and
contains the only known
metapopulation of the species. Unit 1
contains all elements of the essential
physical or biological features of the
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species needed for its eventual recovery.
This unit provides habitat for the spring
pygmy sunfish with adequate numbers
of small pools, spring runs (PCE 1), and
emergent vegetation (PCE 4). These
geomorphic structures provide substrate
for aquatic vegetation that is used by the
species for spawning, foraging, and
other processes of the species natural
history (PCE 4) along with good water
quality (PCE 2), quantity, and flow (PCE
3), which supports the normal life stages
and behavior of the spring pygmy
sunfish, and the species’ prey sources
(PCE 4).
Threats to the spring pygmy sunfish
and its habitat in Unit 1 that may
require special management of the
physical and biological features include
the potential of increased agriculture,
urbanization, and industrialization
activities (such as channel modification
for flood control, construction of
impoundments, and water extraction)
that could result in increased
stormwater runoff and erosion;
significant changes in the existing
spring flow regime due to water
extraction, inadequate stormwater
management, and water diversion;
significant alteration of water quality
and quantity; and significant changes in
streambed material composition and
quality as a result of construction
projects and maintenance activities,
resulting in the destruction of emergent
and aquatic vegetation; off-road vehicle
use; sewer, gas, and water easements;
bridge and road construction and
maintenance; culvert and pipe
installation; and other watershed and
floodplain disturbances that release
sediments or nutrients into the water.
There are three paved road crossings
over this unit, one unpaved dirt road,
and one railroad. Spring pygmy sunfish
movement might be limited due to
changes in flow regime and habitat
including changes in emergent
vegetation, water quality, and water
quantity, and due to stochastic events
such as drought. Populations of spring
pygmy sunfish are small and isolated
from one another due to the nonhomogeneous habitats within Unit 1.
Unit 2: Pryor Spring/Pryor Branch,
Limestone County, Alabama
Unit 2 includes 3.4 km (2.1 mi) of
Pryor Spring and Pryor Branch from the
spring head, about 3.7 mi (5.9 km) south
of Tanner, Alabama, and just east of
Highway 31, downstream to the bridge
where it intersects with Harris Station/
Thomas L. Hammons Road. This also
includes a total of 73.6 ha (182 ac) in
area.
Almost 3.1 km (1.95 mi), or 93
percent of the stream reach, and 65.6 ha
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(162 ac) of the land area (89 percent) are
federally owned by the Tennessee
Valley Authority and managed by the
State as the Swan Creek Wildlife
Management Area. The remaining 0.2
km (0.15 mi) of stream reach (7 percent)
and 8.1 ha (20 ac) (11 percent) of the
land area are privately owned.
Unit 2 is currently unoccupied but is
a historical location for the spring
pygmy sunfish, and is essential for its
conservation and eventual recovery. The
Pryor Spring/Branch system contains
scattered spring-influenced wetlands of
aquatic and emergent vegetation in
spring pools, spring runs, and shallow
water wetlands on the margins of the
small tributaries. Populations of spring
pygmy sunfish were historically noted
as small and isolated within specific
habitat sites of Pryor Spring/Branch. An
attempt to reintroduce the species back
into Pryor Springs (east of Highway 31)
was unsuccessful in the 1980s.
A portion of the spring head has been
mechanically deepened and the banks
steepened in order to promote water
extraction for cropland irrigation.
Nevertheless, there is a significant
seasonal flow of groundwater entering
the system throughout the year from the
springhead (portions of PCEs 1, 2, and
3). Adequate aquatic vegetation (PCE 4)
occurs in areas throughout this spring
system, providing potential habitat for
the normal life stages and behavior of
the spring pygmy sunfish and the
species’ prey sources. Water flow (PCE
3) from the main springhead, along with
other unidentified springs and seeps
within the system, provides sufficient
water quantity to allow for connectivity
between spawning, rearing, foraging,
and resting sites, promoting gene flow
throughout the spring system. While the
existence of PCEs is not necessary for
the designation of unoccupied habitat,
their presence in Unit 2 only reinforces
the value of the Pryor Spring/Branch to
the conservation of the spring pygmy
sunfish.
As this species is only known from a
single population, it is important that
additional populations be established to
buffer against extirpation of the one
known site from stochastic events, such
as drought. Therefore, we have
determined this unit is essential for the
conservation of the species because it
provides potential for the establishment
of an additional population of the spring
pygmy sunfish, thereby reducing this
species’ risk of extinction, and would
contribute to the species’ eventual
recovery.
In summary, we propose designating
critical habitat in two areas, one which
is occupied and which contains
sufficient primary constituent elements
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to support the life-history functions
essential to the conservation of the
species and that require special
management, and one which is
currently unoccupied, which
historically supported the species and
has been determined to be essential for
the conservation of the species.
As discussed in the Critical Habitat
section above, we recognize that
designation of critical habitat may not
include all habitat areas that we may
eventually determine are necessary for
the recovery of the species and that, for
this reason, a critical habitat designation
does not signal that habitat outside the
designated area is unimportant or may
not promote the recovery of the species.
Effects of Critical Habitat Designation
Section 7 Consultation
Section 7(a)(2) of the Act requires
Federal agencies, including the Service,
to ensure that any action they fund,
authorize, or carry out is not likely to
jeopardize the continued existence of
any endangered species or threatened
species or result in the destruction or
adverse modification of designated
critical habitat of such species. In
addition, section 7(a)(4) of the Act
requires Federal agencies to confer with
the Service on any agency action which
is likely to jeopardize the continued
existence of any species proposed to be
listed under the Act or result in the
destruction or adverse modification of
proposed critical habitat.
Decisions by the 5th and 9th Circuit
Courts of Appeals have invalidated our
regulatory definition of ‘‘destruction or
adverse modification’’ (50 CFR 402.02)
(see Gifford Pinchot Task Force v. U.S.
Fish and Wildlife Service, 378 F. 3d
1059 (9th Cir. 2004) and Sierra Club v.
U.S. Fish and Wildlife Service et al., 245
F.3d 434, 442 (5th Cir. 2001)), and we
do not rely on this regulatory definition
when analyzing whether an action is
likely to destroy or adversely modify
critical habitat. Under the provisions of
the Act, we determine destruction or
adverse modification on the basis of
whether, with implementation of the
proposed Federal action, the affected
critical habitat would continue to serve
its intended conservation role for the
species.
If a Federal action may affect a listed
species or its critical habitat, the
responsible Federal agency (action
agency) must enter into consultation
with us. Examples of actions that are
subject to the section 7 consultation
process are actions on State, tribal,
local, or private lands that require a
Federal permit (such as a permit from
the U.S. Army Corps of Engineers under
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section 404 of the Clean Water Act (33
U.S.C. 1251 et seq.) or a permit from the
Service under section 10 of the Act) or
that involve some other Federal action
(such as funding from the Federal
Highway Administration, Federal
Aviation Administration, or the Federal
Emergency Management Agency).
Federal actions not affecting listed
species or critical habitat, and actions
on State, tribal, local, or private lands
that are not federally funded or
authorized do not require section 7
consultation.
As a result of section 7 consultation,
we document compliance with the
requirements of section 7(a)(2) through
our issuance of:
(1) A concurrence letter for Federal
actions that may affect, but are not
likely to adversely affect, listed species
or critical habitat; or
(2) A biological opinion for Federal
actions that may affect, or are likely to
adversely affect, listed species or critical
habitat.
When we issue a biological opinion
concluding that a project is likely to
jeopardize the continued existence of a
listed species and/or destroy or
adversely modify critical habitat, we
provide reasonable and prudent
alternatives to the project, if any are
identifiable, that would avoid the
likelihood of jeopardy and/or
destruction or adverse modification of
critical habitat. We define ‘‘reasonable
and prudent alternatives’’ (at 50 CFR
402.02) as alternative actions identified
during consultation that:
(1) Can be implemented in a manner
consistent with the intended purpose of
the action;
(2) Can be implemented consistent
with the scope of the Federal agency’s
legal authority and jurisdiction;
(3) Are economically and
technologically feasible; and
(4) Would, in the Director’s opinion,
avoid the likelihood of jeopardizing the
continued existence of the listed species
and/or avoid the likelihood of
destroying or adversely modifying
critical habitat.
Reasonable and prudent alternatives
can vary from slight project
modifications to extensive redesign or
relocation of the project. Costs
associated with implementing a
reasonable and prudent alternative are
similarly variable.
Regulations at 50 CFR 402.16 require
Federal agencies to reinitiate
consultation on previously reviewed
actions in instances where we have
listed a new species or subsequently
designated critical habitat that may be
affected and the Federal agency has
retained discretionary involvement or
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control over the action (or the agency’s
discretionary involvement or control is
authorized by law). Consequently,
Federal agencies sometimes may need to
request reinitiating of consultation with
us on actions for which formal
consultation has been completed, if
those actions with discretionary
involvement or control may affect
subsequently listed species or
designated critical habitat.
Application of the ‘‘Adverse
Modification’’ Standard
The key factor related to the adverse
modification determination is whether,
with implementation of the proposed
Federal action, the affected critical
habitat would continue to serve its
intended conservation role for the
species. Activities that may destroy or
adversely modify critical habitat are
those that alter the physical or
biological features to an extent that
appreciably reduces the conservation
value of critical habitat for the spring
pygmy sunfish. As discussed above, the
role of critical habitat is to support lifehistory needs of the species and provide
for the conservation of the species.
Section 4(b)(8) of the Act requires us
to briefly evaluate and describe, in any
proposed or final regulation that
designates critical habitat, activities
involving a Federal action that may
destroy or adversely modify such
habitat, or that may be affected by such
designation. Activities that may affect
critical habitat, when carried out,
funded, or authorized by a federal
agency, should result in consultation for
the spring pygmy sunfish. These
activities include, but are not limited to:
(1) Actions that would alter the
geomorphology of the spring system and
its associated habitats. Such activities
could include, but are not limited to,
instream excavation or dredging,
impoundment, channelization, and
discharge of fill materials. These
activities could cause aggradation or
degradation of the channel bed
elevation or significant bank erosion
and result in entrainment or burial of
this species, destruction of the
associated aquatic vegetation, and other
direct or cumulative adverse effects to
this species and its life cycle.
(2) Actions that would significantly
alter the existing flow regime, related
aquifer, and recharge areas. Such
activities could include, but are not
limited to, impoundments, water
diversion, channel constriction or
widening, placement of pipes, culverts
or bridges, and groundwater and surface
water extraction. These activities could
eliminate or reduce the habitat
necessary for growth, reproduction, and
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connectivity of spring pygmy sunfish
populations.
(3) Actions that would significantly
alter water chemistry or water quality
(for example, temperature, pH,
contaminants, and excess nutrients).
Such activities could include, but are
not limited to, the unsustainable use or
release of chemicals, such as pesticides
and fertilizers and biological pollutants,
into surface water or groundwater.
These activities could alter water
conditions that are beyond the
tolerances of this species and result in
direct or cumulative adverse effects to
the species and its life cycle.
(4) Actions that would significantly
alter streambed material composition
and quality by increasing sediment
deposition or filamentous algal growth.
Such activities could include, but are
not limited to, construction and
maintenance projects of subdivisions,
roads, bridges, stormwater systems and
utility easements; unsustainable
livestock grazing and timber harvest;
off-road vehicle use; and other
watershed and floodplain disturbances
that release sediments or nutrients into
the water through stormwater runoff.
These activities could eliminate or
reduce habitats necessary for the growth
and reproduction of the spring pygmy
sunfish by causing excessive
sedimentation and a decrease in water
quality for the species and associated
vegetation and prey base by
nitrification, leading to excessive
filamentous algal growth, turbidity, and
an increase in water temperatures.
Exemptions
Application of Section 4(a)(3) of the Act
The Sikes Act Improvement Act of
1997 (Sikes Act) (16 U.S.C. 670a)
required each military installation that
includes land and water suitable for the
conservation and management of
natural resources to complete an
integrated natural resources
management plan (INRMP) by
November 17, 2001. An INRMP
integrates implementation of the
military mission of the installation with
stewardship of the natural resources
found on the base. Each INRMP
includes:
(1) An assessment of the ecological
needs on the installation, including the
need to provide for the conservation of
listed species;
(2) A statement of goals and priorities;
(3) A detailed description of
management actions to be implemented
to provide for these ecological needs;
and
(4) A monitoring and adaptive
management plan.
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Among other things, each INRMP
must, to the extent appropriate and
applicable, provide for fish and wildlife
management; fish and wildlife habitat
enhancement or modification; wetland
protection, enhancement, and
restoration where necessary to support
fish and wildlife; and enforcement of
applicable natural resource laws.
The National Defense Authorization
Act for Fiscal Year 2004 (Pub. L. 108–
136) amended the Act to limit areas
eligible for designation as critical
habitat. Specifically, section 4(a)(3)(B)(i)
of the Act (16 U.S.C. 1533(a)(3)(B)(i))
now provides: ‘‘The Secretary shall not
designate as critical habitat any lands or
other geographical areas owned or
controlled by the Department of
Defense, or designated for its use, that
are subject to an integrated natural
resources management plan prepared
under section 101 of the Sikes Act (16
U.S.C. 670a), if the Secretary determines
in writing that such plan provides a
benefit to the species for which critical
habitat is proposed for designation.’’
There are no Department of Defense
lands with a completed INRMP within
the proposed critical habitat
designation. Therefore, we are not
exempting any lands owned or managed
by the DOD from this designation of
critical habitat for the spring pygmy
sunfish under section 4(a)(3)(B)(i) of the
Act.
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Exclusions
Application of Section 4(b)(2) of the Act
Section 4(b)(2) of the Act states that
the Secretary must designate or make
revisions to critical habitat on the basis
of the best available scientific data after
taking into consideration the economic
impact, national security impact, and
any other relevant impact of specifying
any particular area as critical habitat.
The Secretary may exclude an area from
critical habitat if he determines that the
benefits of such exclusion outweigh the
benefits of specifying such area as part
of the critical habitat, unless he
determines, based on the best scientific
data available, that the failure to
designate such area as critical habitat
will result in the extinction of the
species. In making that determination,
the statute on its face, as well as the
legislative history, are clear that the
Secretary has broad discretion regarding
which factor(s) to use and how much
weight to give to any factor.
Under section 4(b)(2) of the Act, we
may exclude an area from designated
critical habitat based on economic
impacts, impacts on national security,
and any other relevant impacts. In
considering whether to exclude a
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particular area from the designation, we
identify the benefits of including the
area in the designation, identify the
benefits of excluding the area from the
designation, and evaluate whether the
benefits of exclusion outweigh the
benefits of inclusion. If the analysis
indicates that the benefits of exclusion
outweigh the benefits of inclusion, the
Secretary may exercise his discretion to
exclude the area only if such exclusion
would not result in the extinction of the
species.
Economic Impacts
Under section 4(b)(2) of the Act, we
consider the economic impacts of
specifying any particular area as critical
habitat. In order to consider economic
impacts, we are preparing an analysis of
the economic impacts of the proposed
critical habitat designation and related
factors.
During the development of our
proposed rule, we have identified
certain sectors and activities that may
potentially be affected by a designation
of critical habitat for spring pygmy
sunfish. These sectors include
commercial development and
urbanization, along with the
accompanying infrastructure associated
with such projects such as road, storm
water drainage, bridge, and culvert
construction and maintenance. As part
of our economic analysis, we are
collecting information and initiating our
analysis to determine (1) which of these
sectors or activities are or involve small
business entities and (2) to what extent
the effects are related to the spring
pygmy sunfish being listed as a
threatened species under the Act
(baseline effects) or are attributable to
the designation of critical habitat
(incremental effects). We believe that
the potential incremental effects
resulting from a designation would be
small. However, one purpose of the
economic analysis will be to determine
if this is the case. Accordingly, we are
requesting any specific economic
information related to small business
entities that may be affected by this
designation and how the designation
may impact small businesses.
We will announce the availability of
the draft economic analysis as soon as
it is completed. At that time, copies of
the draft economic analysis will be
available for downloading from the
Internet at https://www.regulations.gov,
or by contacting the Mississippi
Ecological Services Field Office (see FOR
FURTHER INFORMATION CONTACT section).
During the development of a final
designation, we will consider economic
impacts, public comments, and other
new information, and areas may be
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60199
excluded from the final critical habitat
designation under section 4(b)(2) of the
Act and our implementing regulations at
50 CFR 424.19.
National Security Impacts
Under section 4(b)(2) of the Act, we
consider whether there are lands owned
or managed by the Department of
Defense (DOD) where a national security
impact might exist. In preparing this
proposal, we have determined that none
of the lands within the proposed
designation of critical habitat for the
spring pygmy sunfish are lands owned
or managed by the DOD, and, therefore,
we anticipate no impact on national
security. Consequently, the Secretary
does not intend to exercise his
discretion to exclude any areas from the
final designation based on impacts on
national security.
Other Relevant Impacts
Under section 4(b)(2) of the Act, we
consider any other relevant impacts, in
addition to economic and national
security impacts. We consider a number
of factors, including whether the
landowners have developed any HCPs
or other management plans for the area,
or whether there are conservation
partnerships that would be encouraged
by designation of, or exclusion from,
critical habitat. In addition, we look at
any tribal issues, and consider the
government-to-government relationship
of the United States with tribal entities.
We also consider any social impacts that
might occur because of the designation.
In preparing this proposal, we have
determined that there are currently no
HCPs for the spring pygmy sunfish, and
the proposed designation does not
include any tribal lands or trust
resources. The CCAA between the
Service, the Land Trust, and Belle Mina
Farms, Ltd., covers the upper 24 percent
of the Beaverdam Spring/Creek complex
(Unit 1). This management plan
contains numerous conservation
measures protective of the spring pygmy
sunfish. It provides a measure of
protection for the species in the upper
portion of the only currently occupied
site. However, although this CCAA
reduces some of threats and is one of the
reasons the species is proposed for
listing as threatened rather than
endangered, the magnitude of this threat
reduction is not at the level to
ameliorate threats to this species
throughout its range (see Finding
section, above, for additional
discussion). Thus, the CCAA alone is
not sufficient to preclude the need to
list the species as threatened. We also
anticipate no impact on tribal lands,
partnerships, or HCPs from this
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proposed critical habitat designation.
Accordingly, at this time the Secretary
does not propose to exert his discretion
to exclude any areas from the final
designation based on other relevant
impacts. However, we recognize that
exclusion from critical habitat of the
area covered by the CCAA may
encourage partnerships with other
landowners in the spring complex that
would help address additional threats
under Factors A and E. Therefore, as
indicated in the Information Requested
section, we are requesting information
on whether the benefits of the exclusion
of lands covered by the CCAA may
outweigh the benefits of inclusion under
section 4(b)(2) of the Act, and the
Secretary may reconsider exclusion in
the final rule.
Peer Review
In accordance with our joint policy on
peer review published in the Federal
Register on July 1, 1994 (59 FR 34270),
we will seek the expert opinions of at
least three appropriate and independent
specialists regarding this proposed rule.
The purpose of peer review is to ensure
that our determination of status for this
species and critical habitat designation
is based on scientifically sound data,
assumptions, and analyses. We will
invite these peer reviewers to comment
during this public comment period on
our specific assumptions and
conclusions in this proposed listing
determination and designation of
critical habitat.
We will consider all comments and
information we receive during this
comment period on this proposed rule
during our preparation of a final
determination. Accordingly, the final
decision may differ from this proposal.
wreier-aviles on DSK5TPTVN1PROD with PROPOSALS2
Public Hearings
The Act provides for one or more
public hearings on this proposal, if
requested. Requests must be received
within 45 days after the date of
publication of this proposed rule in the
Federal Register. Such requests must be
sent to the address shown in the FOR
FURTHER INFORMATION CONTACT section.
We will schedule public hearings on
this proposal, if any are requested, and
announce the dates, times, and places of
those hearings, as well as how to obtain
reasonable accommodations, in the
Federal Register and local newspapers
at least 15 days before the hearing.
Required Determinations
Regulatory Planning and Review—
Executive Order 12866 and 13563
Executive Order 12866 provides that
the Office of Information and Regulatory
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Affairs (OIRA) will review all significant
rules. The Office of Information and
Regulatory Affairs has determined that
this rule is not significant.
Executive Order 13563 reaffirms the
principles of E.O. 12866 while calling
for improvements in the nation’s
regulatory system to promote
predictability, to reduce uncertainty,
and to use the best, most innovative,
and least burdensome tools for
achieving regulatory ends. The
executive order directs agencies to
consider regulatory approaches that
reduce burdens and maintain flexibility
and freedom of choice for the public
where these approaches are relevant,
feasible, and consistent with regulatory
objectives. E.O. 13563 emphasizes
further that regulations must be based
on the best available science and that
the rulemaking process must allow for
public participation and an open
exchange of ideas. We have developed
this rule in a manner consistent with
these requirements.
Regulatory Flexibility Act (5 U.S.C. 601
et seq.)
Under the Regulatory Flexibility Act
(RFA; 5 U.S.C. 601 et seq.) as amended
by the Small Business Regulatory
Enforcement Fairness Act (SBREFA) of
1996 (5 U.S.C. 801 et seq.), whenever an
agency must publish a notice of
rulemaking for any proposed or final
rule, it must prepare and make available
for public comment a regulatory
flexibility analysis that describes the
effects of the rule on small entities
(small businesses, small organizations,
and small government jurisdictions).
However, no regulatory flexibility
analysis is required if the head of the
agency certifies the rule will not have a
significant economic impact on a
substantial number of small entities.
The SBREFA amended the RFA to
require Federal agencies to provide a
certification statement of the factual
basis for certifying that the rule will not
have a significant economic impact on
a substantial number of small entities.
According to the Small Business
Administration, small entities include
small organizations such as
independent nonprofit organizations;
small governmental jurisdictions,
including school boards and city and
town governments that serve fewer than
50,000 residents; and small businesses
(13 CFR 121.201). Small businesses
include such businesses as
manufacturing and mining concerns
with fewer than 500 employees,
wholesale trade entities with fewer than
100 employees, retail and service
businesses with less than $5 million in
annual sales, general and heavy
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construction businesses with less than
$27.5 million in annual business,
special trade contractors doing less than
$11.5 million in annual business, and
forestry and logging operations with
fewer than 500 employees and annual
business less than $7 million. To
determine whether small entities may
be affected, we will consider the types
of activities that might trigger regulatory
impacts under this designation as well
as types of project modifications that
may result. In general, the term
‘‘significant economic impact’’ is meant
to apply to a typical small business
firm’s business operations.
Importantly, the incremental impacts
of a rule must be both significant and
substantial to prevent certification of the
rule under the RFA and to require the
preparation of an initial regulatory
flexibility analysis. If a substantial
number of small entities are affected by
the proposed critical habitat
designation, but the per-entity economic
impact is not significant, the Service
may certify. Likewise, if the per-entity
economic impact is likely to be
significant, but the number of affected
entities is not substantial, the Service
may also certify.
Under the RFA, as amended, and
following recent court decisions,
Federal agencies are only required to
evaluate the potential incremental
impacts of rulemaking on those entities
directly regulated by the rulemaking
itself, and not the potential impacts to
indirectly affected entities. The
regulatory mechanism through which
critical habitat protections are realized
is section 7 of the Act, which requires
Federal agencies, in consultation with
the Service, to ensure that any action
authorized, funded, or carried by the
Agency is not likely to adversely modify
critical habitat. Therefore, only Federal
action agencies are directly subject to
the specific regulatory requirement
(avoiding destruction and adverse
modification) imposed by critical
habitat designation. Under these
circumstances, it is our position that
only Federal action agencies will be
directly regulated by this designation.
Therefore, because Federal agencies are
not small entities, the Service may
certify that the proposed critical habitat
rule will not have a significant
economic impact on a substantial
number of small entities.
We acknowledge, however, that in
some cases, third-party proponents of
the action subject to permitting or
funding may participate in a section 7
consultation, and thus may be indirectly
affected. We believe it is good policy to
assess these impacts if we have
sufficient data before us to complete the
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necessary analysis, whether or not this
analysis is strictly required by the RFA.
While this regulation does not directly
regulate these entities, in our draft
economic analysis we will conduct a
brief evaluation of the potential number
of third parties participating in
consultations on an annual basis in
order to ensure a more complete
examination of the incremental effects
of this proposed rule in the context of
the RFA.
In conclusion, we believe that, based
on our interpretation of directly
regulated entities under the RFA and
relevant case law, this designation of
critical habitat will only directly
regulate Federal agencies, which are not
by definition small business entities. As
such, we certify that, if promulgated,
this designation of critical habitat would
not have a significant economic impact
on a substantial number of small
business entities. Therefore, an initial
regulatory flexibility analysis is not
required. However, although not
necessarily required by the RFA, in our
draft economic analysis for this
proposal we will consider and evaluate
the potential effects to third parties that
may be involved with consultations
with Federal action agencies related to
this action.
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Energy Supply, Distribution, or Use—
Executive Order 13211
Executive Order 13211 requires
agencies to prepare Statements of
Energy Effects when undertaking certain
actions. We do not expect the
designation of critical habitat for the
spring pygmy sunfish to significantly
affect energy supplies, distribution, or
use. The proposed critical habitat units
are remote from energy supply,
distribution, or use activities. We are
not aware of any oil and gas exploration
or development within the region to
date, and the area has not been
identified as a shale play for oil and gas
extraction (hydraulic fracturing)
(Satterfield 2011, p. 3) Therefore, this
action is not a significant energy action,
and no Statement of Energy Effects is
required. However, we will further
evaluate this issue as we conduct our
economic analysis, and review and
revise this assessment as warranted.
Unfunded Mandates Reform Act (2
U.S.C. 1501 et seq.)
In accordance with the Unfunded
Mandates Reform Act (2 U.S.C. 1501 et
seq.), we make the following findings:
(1) This rule would not produce a
Federal mandate. In general, a Federal
mandate is a provision in legislation,
statute, or regulation that would impose
an enforceable duty upon State, local,
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tribal governments, or the private sector
and includes both ‘‘Federal
intergovernmental mandates’’ and
‘‘Federal private sector mandates.’’
These terms are defined in 2 U.S.C.
658(5)–(7). ‘‘Federal intergovernmental
mandate’’ includes a regulation that
‘‘would impose an enforceable duty
upon State, local, or tribal governments’’
with two exceptions. It excludes ‘‘a
condition of Federal assistance.’’ It also
excludes ‘‘a duty arising from
participation in a voluntary Federal
program,’’ unless the regulation ‘‘relates
to a then-existing Federal program
under which $500,000,000 or more is
provided annually to State, local, and
tribal governments under entitlement
authority,’’ if the provision would
‘‘increase the stringency of conditions of
assistance’’ or ‘‘place caps upon, or
otherwise decrease, the Federal
Government’s responsibility to provide
funding,’’ and the State, local, or tribal
governments ‘‘lack authority’’ to adjust
accordingly. At the time of enactment,
these entitlement programs were:
Medicaid; Aid to Families with
Dependent Children work programs;
Child Nutrition; Food Stamps; Social
Services Block Grants; Vocational
Rehabilitation State Grants; Foster Care,
Adoption Assistance, and Independent
Living; Family Support Welfare
Services; and Child Support
Enforcement. ‘‘Federal private sector
mandate’’ includes a regulation that
‘‘would impose an enforceable duty
upon the private sector, except (i) a
condition of Federal assistance or (ii) a
duty arising from participation in a
voluntary Federal program.’’
The designation of critical habitat
does not impose a legally binding duty
on non-Federal Government entities or
private parties. Under the Act, the only
regulatory effect is that Federal agencies
must ensure that their actions do not
destroy or adversely modify critical
habitat under section 7. While nonFederal entities that receive Federal
funding, assistance, or permits, or that
otherwise require approval or
authorization from a Federal agency for
an action, may be indirectly impacted
by the designation of critical habitat, the
legally binding duty to avoid
destruction or adverse modification of
critical habitat rests squarely on the
Federal agency. Furthermore, to the
extent that non-Federal entities are
indirectly impacted because they
receive Federal assistance or participate
in a voluntary Federal aid program, the
Unfunded Mandates Reform Act would
not apply, and critical habitat would not
shift the costs of the large entitlement
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60201
programs listed above on to State
governments.
(2) We do not believe that this rule
would significantly or uniquely affect
small governments because it will not
produce a Federal mandate of $100
million or greater in any year, that is, it
is not a ‘‘significant regulatory action’’
under the Unfunded Mandates Reform
Act. The designation of critical habitat
imposes no obligations on State or local
governments. In addition, adjacent
upland properties are owned by private
entities or State partners. Therefore, a
Small Government Agency Plan is not
required. However, we will further
evaluate this issue as we conduct our
economic analysis and revise this
assessment if appropriate.
Takings—Executive Order 12630
In accordance with Executive Order
12630 (Government Actions and
Interference with Constitutionally
Protected Private Property Rights), we
have analyzed the potential takings
implications of designating critical
habitat for spring pygmy sunfish in a
takings implications assessment. Critical
habitat designation does not affect
landowner actions that do not require
Federal funding or permits, nor does it
preclude development of habitat
conservation programs or issuance of
incidental take permits to permit actions
that do require Federal funding or
permits to go forward. The takings
implications assessment concludes that
this proposed designation of critical
habitat for the spring pygmy sunfish
does not pose significant takings
implications for lands within or affected
by the designation.
Federalism—Executive Order 13132
In accordance with Executive Order
13132 (Federalism), the proposed rule
does not have significant Federalism
effects. A federalism impact summary
statement is not required. In keeping
with Department of the Interior and
Department of Commerce policy, we
requested information from, and
coordinated development of, this
proposed critical habitat designation
with appropriate State resource agencies
in Alabama. The designation of critical
habitat in areas currently occupied by
the spring pygmy sunfish (i.e., Unit 1:
Beaverdam Spring/Creek) would impose
few if any additional restrictions to
those put in place through listing, and,
therefore, has would have little
incremental impact on State and local
governments and their activities. There
may be a slight impact on State and
local government and their activities if
critical habitat is designated in Unit 2:
Pryor Spring/Pryor Branch, because this
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is unoccupied critical habitat. However,
critical habitat designation may have
some benefit for these governments
because the areas that contain the
physical or biological features essential
to the conservation of the species are
more clearly defined, and the elements
of the features of the habitat necessary
to the conservation of the species are
specifically identified. This information
does not alter where and what federally
sponsored activities may occur.
However, it may assist local
governments in long-range planning
(rather than having them wait for caseby-case section 7 consultations to
occur).
Where State and local governments
require approval or authorization from a
Federal agency for actions that may
affect critical habitat, consultation
under section 7(a)(2) would be required.
While non-Federal entities that receive
Federal funding, assistance, or permits,
or that otherwise require approval or
authorization from a Federal agency for
an action, may be indirectly impacted
by the designation of critical habitat, the
legally binding duty to avoid
destruction or adverse modification of
critical habitat rests squarely on the
Federal agency.
Civil Justice Reform—Executive Order
12988
In accordance with Executive Order
12988 (Civil Justice Reform), the Office
of the Solicitor has determined that the
rule does not unduly burden the judicial
system and that it meets the
requirements of sections 3(a) and 3(b)(2)
of the Order. We have proposed
designating critical habitat in
accordance with the provisions of the
Act. This proposed rule uses standard
property descriptions and identifies the
elements of physical or biological
features essential to the conservation of
the spring pygmy sunfish within the
designated areas to assist the public in
understanding the habitat needs of the
species.
wreier-aviles on DSK5TPTVN1PROD with PROPOSALS2
Paperwork Reduction Act of 1995 (44
U.S.C. 3501 et seq.)
This rule does not contain any new
collections of information that require
approval by OMB under the Paperwork
Reduction Act of 1995 (44 U.S.C. 3501
et seq.). This rule will not impose
recordkeeping or reporting requirements
on State or local governments,
individuals, businesses, or
organizations. An agency may not
conduct or sponsor, and a person is not
required to respond to, a collection of
information unless it displays a
currently valid OMB control number.
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National Environmental Policy Act (42
U.S.C. 4321 et seq.)
We have determined that
environmental assessments and
environmental impact statements, as
defined under the authority of the
National Environmental Policy Act of
1969 (NEPA), need not be prepared in
connection with listing a species as
endangered or threatened under the Act.
We published a notice outlining our
reasons for this determination in the
Federal Register on October 25, 1983
(48 FR 49244).
It is also our position that, outside the
jurisdiction of the U.S. Court of Appeals
for the Tenth Circuit, we do not need to
prepare environmental analyses under
NEPA in connection with designating
critical habitat under the Act. We
published a notice outlining our reasons
for this determination in the Federal
Register on October 25, 1983 (48 FR
49244). This position was upheld by the
U.S. Court of Appeals for the Ninth
Circuit (Douglas County v. Babbitt, 48
F.3d 1495 (9th Cir. 1995), cert. denied
516 U.S. 1042 (1996)).
Clarity of the Rule
We are required by Executive Orders
12866 and 12988 and by the
Presidential Memorandum of June 1,
1998, to write all rules in plain
language. This means that each rule we
publish must:
(1) Be logically organized;
(2) Use the active voice to address
readers directly;
(3) Use clear language rather than
jargon;
(4) Be divided into short sections and
sentences; and
(5) Use lists and tables wherever
possible.
If you feel that we have not met these
requirements, send us comments by one
of the methods listed in the ADDRESSES
section. To better help us revise the
rule, your comments should be as
specific as possible. For example, you
should tell us the numbers of the
sections or paragraphs that are unclearly
written, which sections or sentences are
too long, the sections where you feel
lists or tables would be useful, etc.
Government-to-Government
Relationship With Tribes
In accordance with the President’s
memorandum of April 29, 1994,
(Government-to-Government Relations
with Native American Tribal
Governments; 59 FR 22951), Executive
Order 13175 (Consultation and
Coordination With Indian Tribal
Governments), and the Department of
Interior’s manual at 512 DM 2, we
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readily acknowledge our responsibility
to communicate meaningfully with
recognized Federal Tribes on a
government-to-government basis. In
accordance with Secretarial Order 3206
of June 5, 1997 (American Indian Tribal
Rights, Federal-Tribal Trust
Responsibilities, and the Endangered
Species Act), we readily acknowledge
our responsibilities to work directly
with tribes in developing programs for
healthy ecosystems, to acknowledge that
tribal lands are not subject to the same
controls as Federal public lands, to
remain sensitive to Indian culture, and
to make information available to tribes.
The State of Alabama does contain
tribal lands, however, none occur
within the proposed critical habitat
designation. Therefore, we are not
proposing to designate critical habitat
for spring pygmy sunfish on tribal
lands.
References Cited
A complete list of all references cited
in this rulemaking is available on the
Internet at https://www.regulations.gov
and upon request from the Deputy Field
Supervisor, Mississippi Ecological
Services Field Office (see FOR FURTHER
INFORMATION CONTACT).
Authors
The primary authors of this package
are the staff members of the Mississippi
Ecological Services Field Office (see
FURTHER INFORMATION CONTACT).
List of Subjects in 50 CFR Part 17
Endangered and threatened species,
Exports, Imports, Reporting and
recordkeeping requirements,
Transportation.
Proposed Regulation Promulgation
Accordingly, we propose to amend
part 17, subchapter B of chapter I, title
50 of the Code of Federal Regulations,
as set forth below:
PART 17—[AMENDED]
1. The authority citation for part 17
continues to read as follows:
Authority: 16 U.S.C. 1361–1407; 16 U.S.C.
1531–1544; 16 U.S.C. 4201–4245; Pub. L. 99–
625, 100 Stat. 3500; unless otherwise noted.
2. Amend § 17.11(h) by adding an
entry for ‘‘Sunfish, spring pygmy’’ to the
List of Endangered and Threatened
Wildlife in alphabetical order under
FISHES to read as follows:
§ 17.11 Endangered and threatened
wildlife.
*
*
*
(h) * * *
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*
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Federal Register / Vol. 77, No. 191 / Tuesday, October 2, 2012 / Proposed Rules
Species
Historic range
Vertebrate
population where
endangered or
threatened
Common name
Scientific name
*
FISHES
*
.................................
*
.................................
*
Sunfish, spring
pygmy.
*
Elassoma alabamae
*
U.S.A. (AL) .............
*
*
Critical habitat—fish and wildlife.
*
*
*
*
(e) Fishes.
*
*
*
*
*
Spring Pygmy Sunfish (Elassoma
alabamae)
(1) Critical habitat units are depicted
for Limestone County, Alabama, on the
maps below.
(2) Within these areas, the primary
constituent elements of the physical and
biological features essential to the
conservation of spring pygmy sunfish
are:
(i) Spring system. Springs and
connecting spring-fed reaches and
wetlands that are geomorphically stable
and relatively low-gradient. This
includes headwater springs with spring
heads, spring runs, and spring pools
that filter into shallow, vegetated
wetlands.
(ii) Water quality. Yearly averages of
water quality with optimal temperatures
of 57.2 to 68 °F (14 to 20 °C) and not
exceeding 80 °F (26.7 °C); pH of 6.0 to
7.7; dissolved oxygen of 6.0 parts per
million (ppm) or greater; specific
conductivity no greater than 300 micro
Siemens per centimeter at 80 °F (26.7
°C); low concentrations of free or
suspended solids with turbidity
measuring less than 15 Nephelometric
Turbidity Units (NTU) and 20
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*
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When listed
Critical
habitat
Special
rules
*
.................................
*
*
....................
....................
*
....................
*
Entire ......................
*
T
*
*
*
*
2. In § 17.95, amend paragraph (e) by
adding an entry for ‘‘Spring Pygmy
Sunfish (Elassoma alabamae),’’ in the
same alphabetical order that the species
appears in the table at § 17.11(h), to
read as follows:
§ 17.95
Status
Jkt 229001
*
milligrams per liter (mg/l) total
suspended solids (TSS).
(iii) Hydrology. A hydrologic flow
regime (magnitude, frequency, duration,
and seasonality of discharge over time)
necessary to maintain spring habitats.
The instream flow from groundwater
sources (springs and seeps) maintains
an adequate velocity and a continuous
daily discharge from the aquifer that
allows for connectivity between
habitats. Instream flow is stable and
does not vary during water extraction,
and the aquifer recharge maintains
adequate levels to supply water flow to
the spring head. The flow regime does
not significantly change during storm
events.
(iv) Vegetation and Prey Base.
Aquatic, emergent and semi-emergent
vegetation along the margins of spring
runs and submergent vegetation that is
adequate for breeding, reproducing, and
rearing young; providing cover and
shelter from predators; and supporting
the prey base of aquatic
macroinvertebrates eaten by spring
pygmy sunfish. Important species of
submergent and emergent vegetation
include clumps and stands of
Sparganium spp. (bur reed),
Ceratophyllum spp. (coontail),
Nasturtium officinale (watercress),
Juncus spp. (rush), Carex spp. (sedges),
Nuphar luteum (yellow pond lily),
Myriophyllum spp. (parrot feather),
Utricularia spp. (bladderwort),
Polygonum spp. (smartweed), Lythrum
salicaria (purple loosestrife), and
Callitriche spp. (water starwort).
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*
17.95(e)
NA
*
(3) Critical habitat does not include
manmade structures (such as buildings,
aqueducts, runways, roads, and other
paved areas) and the land on which they
are located existing within the legal
boundaries on the effective date of this
rule.
(4) Critical habitat unit maps. Data
layers defining the map unit were
created by delineating habitats that
contained at least one or more of the
primary constituent elements defined in
paragraph (2) of this entry, over a base
of USGS digital topographic map
quadrangle (Greenbrier and Mason
Ridge) and a USDA 2007 digital orthophoto mosaic, in addition to the
National Wetland Inventory Maps. The
resulting critical habitat unit was then
mapped using State Plane North
American Datum (NAD) 83 coordinates.
The maps in this entry, as modified by
any accompanying regulatory text,
establish the boundaries of the critical
habitat designation. The coordinates or
plot points or both on which each map
is based are available to the public at the
Service’s internet site, https://
www.fws.gov/mississippiES/; at https://
www.regulations.gov at Docket No.
FWS–R4–ES–2012–0068; and at the
field office responsible for this
designation. You may obtain field office
location information by contacting one
of the Service regional offices, the
addresses of which are listed at 50 CFR
2.2.
(5) Index map of critical habitat for
the spring pygmy sunfish follows:
BILLING CODE 4310–55–P
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Federal Register / Vol. 77, No. 191 / Tuesday, October 2, 2012 / Proposed Rules
(6) Unit 1: Beaverdam Spring/Creek,
Limestone County, Alabama.
(i) General Description: Unit 1
includes a total of 9.5 km (5.9 mi) of
Beaverdam Spring/Creek, northeast of
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Greenbrier, Alabama, from the spring
head, 5.6 km (3.5 mi) north of Interstate
565 (Lat. 34.703162, Long.-86.82899) to
3.9 km (2.4 mi) south of Interstate 565
(Lat. 34.625896, Long. -86.82505). Unit
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1 encompasses Moss, Horton, and
Thorsen springs. This includes a total of
580.7 hectares (1,435 acres).
(ii) Map of Unit 1 follows:
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60204
(7) Unit 2: Pryor Spring/Pryor Branch,
Limestone County, Alabama.
(i) General Description. Unit 2
includes 3.4 km (2.1 mi) of Pryor Spring
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and Pryor Branch from the spring head,
about 3.7 mi (5.9 km) south of Tanner,
Alabama, and just east of Highway 31,
downstream to the bridge where it
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intersects with Harris Station/Thomas L.
Hammons Road. This also includes a
total of 73.6 ha (182 ac) in area.
(ii) Map of Unit 2 follows:
E:\FR\FM\02OCP2.SGM
02OCP2
EP02OC12.001
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Federal Register / Vol. 77, No. 191 / Tuesday, October 2, 2012 / Proposed Rules
*
*
Federal Register / Vol. 77, No. 191 / Tuesday, October 2, 2012 / Proposed Rules
*
*
Dated: September 13, 2012.
Michael J. Bean,
Assistant Secretary for Fish and Wildlife and
Parks.
*
[FR Doc. 2012–23854 Filed 10–1–12; 8:45 am]
BILLING CODE 4310–55–C
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Agencies
[Federal Register Volume 77, Number 191 (Tuesday, October 2, 2012)]
[Proposed Rules]
[Pages 60179-60206]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-23854]
[[Page 60179]]
Vol. 77
Tuesday,
No. 191
October 2, 2012
Part II
Department of the Interior
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Fish and Wildlife Service
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50 CFR Part 17
Endangered and Threatened Wildlife and Plants; 12-Month Petition
Finding, Listing of the Spring Pygmy Sunfish as Threatened, and
Designation of Critical Habitat; Proposed Rule
Federal Register / Vol. 77 , No. 191 / Tuesday, October 2, 2012 /
Proposed Rules
[[Page 60180]]
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DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[Docket No. FWS-R4-ES-2012-0068; 4500030113]
RIN 1018-AY19
Endangered and Threatened Wildlife and Plants; 12-Month Petition
Finding, Listing of the Spring Pygmy Sunfish as Threatened, and
Designation of Critical Habitat
AGENCY: Fish and Wildlife Service, Interior.
ACTION: 12-Month finding; proposed rule.
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SUMMARY: We, the U.S. Fish and Wildlife Service (Service), announce a
12-month finding on a petition to list the spring pygmy sunfish
(Elassoma alabamae) as threatened under the Endangered Species Act of
1973, as amended (Act), and to designate critical habitat. After review
of all available scientific and commercial information, we find that
listing the spring pygmy sunfish as a threatened species under the Act
is warranted. Accordingly, we propose to list the spring pygmy sunfish
as a threatened species throughout its range and designate critical
habitat for the species under the Act. In total, we propose
approximately 8 stream miles (mi) (12.9 kilometers (km)) and 1,617
acres (ac) (654.4 hectares (ha)) of spring pool and spring-influenced
wetland in Limestone County, Alabama, for designation as critical
habitat.
DATES: We will consider comments received or postmarked on or before
December 3, 2012. We must receive requests for a public hearing, in
writing, at the address shown in the FOR FURTHER INFORMATION CONTACT
section by November 16, 2012. Comments submitted electronically using
the Federal eRulemaking Portal (see ADDRESSES section, below) must be
received by 11:59 p.m. Eastern Time on the closing date.
ADDRESSES:
(1) Electronically: Go to the Federal eRulemaking Portal: https://www.regulations.gov. Search for Docket No. FWS-R4-ES-2012-0068, which
is the docket number for this rulemaking.
(2) By hard copy: Submit by U.S. mail or hand-delivery to: Public
Comments Processing, Attn: FWS-R4-ES-2012-0068; Division of Policy and
Directives Management, U.S. Fish and Wildlife Service, 4401 N. Fairfax
Drive, MS 2042-PDM; Arlington, VA 22203.
We request that you send comments only by the methods described
above. We will post all comments on https://www.regulations.gov. This
generally means that we will post any personal information you provide
us (see the Information Requested section below for more details).
The coordinates or plot points or both from which the maps are
generated are included in the administrative record for this critical
habitat designation and are available at https://www.fws.gov/mississippiES/, https://www.regulations.gov at Docket No. FWS-R4-ES-
2012-0068, and at the Mississippi Ecological Services Field Office (see
FOR FURTHER INFORMATION CONTACT). Any additional tools or supporting
information that we may develop for this critical habitat designation
will also be available at the above locations.
FOR FURTHER INFORMATION CONTACT: Stephen Ricks, Field Supervisor,
Mississippi Ecological Services Field Office, 6578 Dogwood View
Parkway, Jackson, MS 39213; by telephone (601-321-1122); or by
facsimile (601-965-4340). If you use a telecommunications device for
the deaf (TDD), please call the Federal Information Relay Service
(FIRS) at 800-877-8339.
SUPPLEMENTARY INFORMATION: This document consists of: (1) A 12-month
petition finding that listing the spring pygmy sunfish under the Act is
warranted; (2) a proposed rule to list the spring pygmy sunfish as
threatened; and (3) a proposed rule to designate critical habitat for
this species.
Executive Summary
Why we need to publish a rule. Under the Endangered Species Act, 16
U.S.C. 1531 et seq., a species or subspecies may warrant protection
through listing if it is endangered or threatened throughout all or a
significant portion of its range. We are proposing to list the spring
pygmy sunfish as threatened under the Act because of current and future
threats, and listing can only be done by issuing a rule. The spring
pygmy sunfish no longer occurs at two of the three spring systems in
which it historically was found, and faces a variety of threats in the
Beaverdam Spring/Creek System, the only location where it currently
occurs. We are also proposing to designate critical habitat under the
Act. Critical habitat represents geographical areas that are essential
to a species' conservation, and is designated on the basis of the best
scientific information available after taking into consideration the
economic impact, impact on national security, and any other relevant
impact of specifying any particular area as critical habitat.
The basis for our action. Under the Act, a species may be
determined to be endangered or threatened based on any of five factors:
(A) 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. The spring pygmy sunfish is facing
threats due to three of these five factors (A, D, and E), and
potentially faces threats under a fourth (Factor C.) The Act also
requires that the Service designate critical habitat at the time of
listing provided that it is prudent and determinable. We have
determined that it is both prudent and determinable (see Critical
Habitat section below) and are proposing approximately 8 stream mi
(12.9 km) and 1,617 ac (654.4 ha) of spring system habitat and adjacent
upland buffers for designation as critical habitat.
Peer review is important. In addition to seeking public comments,
we will solicit peer review of this proposal from at least three
experts knowledgeable in spring pygmy sunfish biology and basic
conservation biology principles and concepts.
Information Requested
We intend that any final action resulting from this proposed rule
will be based on the best scientific and commercial data available and
be as accurate and as effective as possible. Therefore, we request
comments or information from other concerned Federal and State
agencies, the scientific community, or any other interested party
concerning this proposed rule. We particularly seek comments
concerning:
(1) Additional information concerning the historical and current
status, range, distribution, and population size of the spring pygmy
sunfish, including the locations of any additional populations.
(2) Any information on the biological or ecological requirements of
the species and ongoing conservation measures for the species and its
habitat.
(3) Biological, commercial trade, or other relevant data concerning
any threats (or lack thereof) to this species and regulations that may
be addressing those threats.
(4) Current or planned activities in the areas occupied by the
species and possible impacts of these activities on this species.
(5) Additional information regarding the threats to the species
under the five listing factors, which are:
[[Page 60181]]
(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; and
(e) Other natural or manmade factors affecting its continued
existence.
(6) Any information regarding ongoing conservation activities for
the spring pygmy sunfish, including the Belle Mina Farm, Ltd.,
candidate conservation agreement with assurances (CCAA), and their
effect on the status of the species.
(7) The reasons why areas should or should not be designated as
critical habitat as provided by section 4 of the Act, including the
possible risks or benefits of designating critical habitat, including
risks associated with publication of maps designating any area on which
this species may be located, now or in the future, as critical habitat.
(8) The following specific information on:
(a) The amount and distribution of habitat for spring pygmy
sunfish;
(b) What areas, that would be occupied at the time of listing
(i.e., are currently occupied) and that contain the physical and
biological features essential to the conservation of this species,
should be included in a critical habitat designation and why;
(c) Special management considerations or protection that may be
needed for the essential features in critical habitat areas, including
managing for the potential effects of climate change; and
(d) What areas not occupied at the time of listing are essential
for the conservation of this species and why.
(9) Information on the projected and reasonably likely impacts of
changing environmental conditions resulting from climate change on the
species and its habitat.
(10) Information on groundwater aquifer or recharge areas for
spring systems that support the spring pygmy sunfish, and the possible
implications of extracting ground and surface water and its impact on
the spring pygmy sunfish and its habitat.
(11) Any probable economic, national security, or other relevant
impacts of designating any area that may be included in the final
designation; in particular, we seek information on any impacts on small
entities or families, and the benefits of including or excluding areas
that exhibit these impacts.
(12) Information on whether the benefits of the exclusion of lands
covered by the Belle Mina Farm, Ltd., CCAA, or any other particular
area, outweigh the benefits of inclusion under section 4(b)(2) of the
Act.
(13) Whether we could improve or modify our approach to designating
critical habitat in any way to provide for greater public participation
and understanding, or to better accommodate public concerns and
comments.
Please note that submissions merely stating support for or
opposition to the action under consideration without providing
supporting information, although noted, will not be considered in
making a determination, as section 4(b)(1)(A) of the Act directs that
determinations as to whether any species is an endangered or threatened
species must be made ``solely on the basis of the best scientific and
commercial data available,'' and section 4(b)(2) directs that critical
habitat designations be made based on the best scientific data
available and after consideration of economic and other relevant
impacts.
You may submit your comments and materials concerning this proposed
rule by one of the methods listed in ADDRESSES. We request that you
send comments only by the methods described in ADDRESSES.
If you submit information via https://www.regulations.gov, your
entire submission--including any personal identifying information--will
be posted on the Web site. If your submission is made via a hardcopy
that includes personal identifying information, such as your address,
phone number, and email address, you may request at the top of your
document that we withhold this information from public review. However,
we cannot guarantee that we will be able to do so. We will post all
hardcopy submissions on https://www.regulations.gov. Please include
sufficient information with your comments to allow us to verify any
scientific or commercial information you include.
Comments and materials we receive, as well as supporting
documentation we used in preparing this proposed rule, will be
available for public inspection on https://www.regulations.gov, or by
appointment, during normal business hours, at the U.S. Fish and
Wildlife Service, Mississippi Ecological Services Field Office (see FOR
FURTHER INFORMATION CONTACT).
Background
Section 4(b)(3)(B) of the Act requires that, for any petition to
revise the Federal Lists of Threatened and Endangered Wildlife and
Plants (Lists) that contains substantial scientific or commercial
information that listing a species may be warranted, we make a finding
within 12 months of the date of receipt of the petition that the
petitioned action is either: (a) Not warranted; (b) warranted; or (c)
warranted, but the immediate proposal of a regulation implementing the
petitioned action is precluded by other pending proposals to determine
whether any species is endangered or threatened, and expeditious
progress is being made to add or remove qualified species from the
Lists. With this publication, we have determined that the petitioned
action to list spring pygmy sunfish is warranted, and we are proposing
to list the species and to designate critical habitat for the species.
Previous Federal Actions
The spring pygmy sunfish was proposed for listing as endangered
with critical habitat on November 29, 1977 (42 FR 60765). The critical
habitat portion of the proposal was withdrawn on March 6, 1979 (44 FR
12382), in order to make a new critical habitat proposal that conformed
to new, more prescriptive provisions for critical habitat made in the
1978 amendments to the Act. The Service proposed critical habitat again
for the species on July 27, 1979 (44 FR 44418). The pending proposal to
list the spring pygmy sunfish, along with the proposed critical habitat
designation, were withdrawn effective November 29, 1979, as announced
in the Federal Register on January 24, 1980 (45 FR 5782).
The spring pygmy sunfish was included in the December 30, 1982,
notice of review (47 FR 58454) as a category 2 candidate species for
listing. Category 2 status was given to those species for which the
Service possessed information indicating that proposing to list as
endangered or threatened was possibly appropriate, but for which
conclusive data on biological vulnerability and threats were not
currently available to support proposed rules. Subsequently, in the
September 18, 1985 (50 FR 37958); January 6, 1989 (54 FR 554); and
November 15, 1994 (59 FR 58982) notices of review, the spring pygmy
sunfish was identified as a category 1 candidate species for listing.
Category 1 status was given to those species for which the Service had
on file sufficient information on biological vulnerability and
threat(s) to support a proposal to list as endangered or threatened but
for which a proposal had not yet been issued because of other listing
actions. On February 28, 1996 (61
[[Page 60182]]
FR 7457), the Service published a notice of review removing the spring
pygmy sunfish from the candidate list because of successful
introduction, increased distribution (outside of the range of the
introduction), and the discovery of additional populations, including
one on Wheeler National Wildlife Refuge. At that time, we reported that
the known populations, each exceeding 1,000 individuals, were
increasing.
On November 24, 2009, we received a petition from the Center for
Biological Diversity (CBD) and Michael Sandel of the University of
Alabama, requesting that the spring pygmy sunfish be listed as
endangered under the Act. In a December 17, 2009, letter to the
petitioners, we responded that we reviewed the information presented in
the petition, and we outlined the petition process and timelines. In
July 2010, we received letters from the North American Native Fishes
Association (NANFA) and Dr. Bruce Stallsmith (University of Alabama at
Huntsville) requesting that we emergency list the species under section
4(b)(7) of the Act. Following review of the petition, the letters, and
information in our files, we determined that issuing an emergency
regulation temporarily listing the species was not warranted. We
notified NANFA and Dr. Stallsmith of our determination on July 21,
2010.
On April 1, 2011, we published in the Federal Register (76 FR
18138) our 90-day finding that the petition to list the spring pygmy
sunfish as endangered presented substantial information indicating that
the requested action may be warranted, and we initiated a status review
of the species.
Since 2010, Belle Mina Farms, the owner of Beaverdam Spring, Moss
Spring, and the upper reach of Beaverdam Creek, in Limestone County,
Alabama, and the Service have been engaged in drafting a candidate
conservation agreement with assurances (CCAA) for a population of
spring pygmy sunfish. The CCAA outlines a variety of conservation
measures that will be implemented to benefit the species (see
``Conservation Efforts to Reduce Habitat Destruction, Modification, or
Curtailment'' under the Factor A discussion, below). On September 14,
2010, we received the completed application from the landowner for an
enhancement of survival permit for the spring pygmy sunfish under
section 10(a)(1)(A) of the Act along with a draft CCAA. The CCAA, the
permit application, and the environmental action statement (EAS) were
made available for public comment for a 30-day period beginning on
February 21, 2012 (77 FR 9958). The CCAA and EAS were finalized in
April 2012, and the associated permit was issued on June 7, 2012. If
the spring pygmy sunfish is listed under the Act, the permit authorizes
incidental take of the spring pygmy sunfish due to otherwise lawful
activities (e.g., crop cultivation, livestock grazing, silviculture,
vegetation management, water usage, road maintenance, fencerow
maintenance, etc.) in accordance with the terms of the CCAA.
Species Information
Taxonomy and Description
The spring pygmy sunfish (Elassoma alabamae) was discovered in
1937, but not described until 1993 (Mayden 1993, pp.1-14). This species
is the smallest member of the genus Elassoma. Males are normally
smaller than females and are very dark to black with iridescent blue-
green color on their sides, cheeks, and gill covers (Boschung and
Mayden 2004, pp. 614-615). The maximum standard length (distance from
tip of snout to the end of the last vertebrae) for adult males is 0.80
in (20.4 mm) and for adult females it is 0.96 in (24.5 mm) (Boschung
and Mayden 2004, pp. 614-615). Both sexes have broad vertical and
narrow bars on their flanks. We accept the characterization of the
spring pygmy sunfish as a valid species based on the taxonomic
characters distinguishing the species from other members of the
Elassoma genus (Mayden 1993, p.4). Its uniqueness is widely accepted by
the scientific community, and there has been no discrepancy concerning
its distinctiveness as a separate taxonomic entity (Boschung et al.
2004, p. 614).
Current Distribution
The range of the spring pygmy sunfish is very restricted. The
species currently occupies about 5.9 mi (9.5 km) and 1,435 ac (580.6
ha) of four spring pools and associated features confluent with the
middle to upper Beaverdam Spring/Creek watershed. These spring pools,
which include Moss, Beaverdam, Thorsen, and Horton springs, all in
Limestone County, Alabama, along with associated spring runs and
wetlands, are collectively referred to as the Beaverdam Spring/Creek
system. The greatest concentration of spring pygmy sunfish occurs
within the Beaverdam Spring site, which comprises 24 percent of the
total occupied habitat for the species.
Life History
The spring pygmy sunfish has high fecundity (reproductive capacity)
and quickly populates areas of available habitat (Sandel pers. obs.
2004 through 2009). Adults reproduce from January to October. Spawning
occurs in March and April, when water quality parameters are within a
suitable range (pH of 6.0 to 7.7 and water temperatures of 57.2 to 68
degrees Fahrenheit ([deg]F) (15 to 20 degrees Celsius ([deg]C)). Spring
pygmy sunfish produce about 65 eggs, and hatching occurs from April to
September (Sandel pers. obs. 2004 through 2009). Two spawning attempts
per year have been reported in captivity (Petty et al. 2011, p. 4). In
captivity, the spring pygmy sunfish may live slightly longer than 2
years, but normally their life span is 1 year or less (Boschung and
Mayden 2004, pp. 614-615).
Habitat
The spring pygmy sunfish is a spring-associated (Warren 2004,
p.185) and groundwater-dependent (Jandebeur, pers. comm., 2011) fish
endemic to the Tennessee River drainage in the Eastern Highland Rim
physiographic province and Dissected Tablelands (Marbut et al. 1913, p.
53) of Lauderdale and Limestone Counties in northern Alabama. The
preferred habitat for the spring pygmy sunfish is colorless to slightly
stained spring water, occurring within several components of spring
geomorphology including the spring head (where water emerges from the
ground), spring pool (water pool at spring head), spring run (stream or
channel downstream of spring pool), and associated spring-fed wetlands
(Warren 2004, pp. 184-185). No contemporary water flow rates
characterizing groundwater flow from the springs are available.
However, historical flow rates for Pryor Spring (where the species once
occurred) and Moss Spring of 800 to 5,000 gallons per minute (gpm)
(3,000 to 19,000 liters per minute (lpm))(tabulated from Chandler and
Moore 1987, pp. 3-4), respectively, indicate that the spring pygmy
sunfish is associated with moderately flowing springs of the second to
fourth order (after Meinzer 1923, in Chandler and Moore 1987, p. 5;
McMaster and Harris 1963, p. 28).
Natural spring pool habitats are typically static, persisting
without disruption for long periods, even during droughts, in the
absence of water extraction. The species is most abundant at the spring
outflow or emergence (spring head) and spring pool area. The spring
pygmy sunfish is typically found at water depths from 5 to 40 inches
(in) (13 to 102 centimeters (cm)) and rarely in the upper 5 inches (13
cm) of the water column. Species of submergent and emergent vegetation
providing important habitat for the spring pygmy sunfish include clumps
[[Page 60183]]
and stands of Sparganium sp. (bur reed), Ceratophyllum sp. (coontail),
Nasturtium officinale (watercress), Juncus sp. (rush), Carex sp.
(sedges), Nuphar luteum (yellow pond lily), Myriophyllum sp. (parrot
feather), Utricularia sp. (bladderwort), Polygonum sp. (smartweed),
Lythrum salicaria (purple loosestrife), and Callitriche sp. (water
starwort) (Mayden 1993, p. 11; Jandebeur 1997, pp. 42-44; Sandel 2011,
pp. 3-5, 9-11). The species is also associated with certain animal
species such as amphipods, isopods, spring salamanders, crayfish, and
snails (Sandel 2011, pp.11-12; Mayden 1993, p. 11).
Historical Distribution and Status
The spring pygmy sunfish was known to have historically occurred at
two other sites. This species was initially discovered in 1938, in Cave
Springs, Lauderdale County, Alabama, where it was extirpated about a
year later due to inundation from the formation of Pickwick Reservoir.
In 1941, this species was also discovered in Pryor Spring within the
Swan Creek watershed in Limestone County, Alabama, by Tarzwell and
Bretton, where it was noted to be common (Jandebeur 2011a, pp. 1-5).
Limited sampling efforts in the Pryor Springs complex between 1966 and
1979 indicated a sparse population of spring pygmy sunfish west of, and
none east of, Highway 31. The exact location of the original collection
in Pryor Spring is uncertain, but Jandebeur (2011a, pp. 1-5) speculates
the original site to be solely west of Highway 31, within the Pryor
Spring Branch (spring-fed wetlands) and not in Pryor Spring proper
(spring head and pool), east of the highway. However, in 1984, in an
effort to enhance this population in Pryor Spring, fish were moved from
Moss Spring (Beaverdam Spring/Creek System) into Pryor Spring on both
sides of Highway 31 (Mettee et. al. 1986, pp. 14-15). Reintroduction
efforts continued into 1986 and 1987 (Mettee et. al. 1986, pp. 6-7).
However, by 2007, the population was determined to be extirpated due to
impaired water quality and quantity, likely attributable to
contaminants from agricultural runoff (Sandel 2008, p. 2; 2011, pp. 3,
6).
The spring pygmy sunfish exhibits metapopulation (a group of
individual populations that have some level of gene flow between them)
structure by occupying all suitable spring habitats where there is
flowing spring water and connectivity. Migration and continuity of the
species between spring pools is very important in maintaining the
genetic diversity of species within these sections of the Beaverdam
Spring/Creek system. Sandel (2008, pp. 15-16; 2011, p. 8) suggests that
the spring pygmy sunfish population in Beaverdam Spring/Creek is a
single, structured, continuous group of breeding individuals,
genetically identifiable with limited gene flow from each springhead
subpopulation, and that the loss of many subpopulations could cause
extinction of the metapopulation. However, Jandebeur (2011b, pp. 1-13)
speculates that these populations of spring pygmy sunfish evolved with
beaver ecology and that during migration of spring pygmy sunfish from
beaver pond habitats, the species may colonize or recolonize existing
habitat downstream, even though individual subpopulations may be
extirpated due to drought or other ecological issues.
Summary of Information Pertaining to the Five Factors
Section 4 of the Act and its implementing regulations (50 CFR part
424) set forth the procedures for adding species to the Federal Lists
of Endangered and Threatened Wildlife and Plants. A species may be
determined to be an endangered or threatened species due to one or more
of the following five factors described in section 4(a)(1) of the Act:
(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; and
(E) Other natural or manmade factors affecting its continued
existence.
Listing actions may be warranted based on any of the above threat
factors, singly or in combination. Each of these factors is discussed
below.
In considering what factors might constitute threats to a species,
we must look beyond the exposure of the species to a particular factor
to evaluate whether the species may respond to that factor in a way
that causes actual impacts to the species. If there is exposure to a
factor and the species responds negatively, the factor may be a threat.
The factor is a threat if it drives, or contributes to, the risk of
extinction of the species such that the species warrants listing as
endangered or threatened as those terms are defined in the Act.
However, the identification of factors that could impact a species
negatively may not be sufficient to compel a finding that the species
warrants listing. The information must include evidence sufficient to
suggest that these factors are operative threats that act on the
species to the point that the species may meet the definition of
endangered or threatened under the Act.
Factor A: The Present or Threatened Destruction, Modification, or
Curtailment of Its Habitat or Range
Increased human population growth, and the accompanying demand for
water, will likely alter the Beaverdam Spring/Creek system and its
recharge areas through increased water extraction (pumping), diversion,
and retention (Erman 2002, p. 8). Because springs provide shelter,
thermal refuge, breeding sites, movement corridors, and prey source
habitat for the spring pygmy sunfish, the species is dependent on water
quantities sufficient to provide spring habitat that is stable and
permanent (Erman 2002, p. 8).
Urban and Industrial Development
Urban development adjacent to the Beaverdam Spring/Creek system
would likely fragment and directly impact suitable spring pygmy sunfish
habitat by decreasing water quality and quantity, and by limiting the
species' movement throughout the system. When an area is urbanized,
many impermeable surfaces are constructed such as roofs, pavements, and
road surfaces. All are intentionally constructed to be far less
permeable than natural soils and to remove stormwater quickly, which
results in a reduction in direct recharge into the aquifer, increased
stormwater runoff (Younger 2007, p. 39), immediate changes in water
quality parameters such as decreased oxygen levels and increased
temperature, and increased water quantity and flow velocity (Field et
al. 2003, pp. 326-333). The stormwater flow velocity carries sediments
that may scarify (make scratches or cuts in) rock and gravel substrates
(Waters 1995, pp. 57, 66) and uproot aquatic vegetation, thereby
destroying important foraging, spawning, and refuge habitat for the
species (Field et al. 2003, pp. 326-333).
The spring pygmy sunfish is currently facing threats from planned
large-scale residential and industrial projects and ongoing development
within the vicinity of the Beaverdam Spring/Creek watershed. Sandel
(2011, p. 11) observed declines in the species' population and
attributed it to sedimentation from two nearby construction activities:
the construction of a new sewer line adjacent to the spring system and
the construction of the Ashbury subdivision 2.3 mi (3.7 km) northeast
of the species' habitat. The Ashbury subdivision, adjacent to Hardeman
Branch and draining into the
[[Page 60184]]
upper Beaverdam Spring/Creek watershed, filled adjacent wetlands when
residential housing, roads, utility crossings, and stormwater drains
were constructed (U.S. Army Corps of Engineers 2011, pp. 1-6).
The City of Huntsville's Master Plan for Western Annexed Land
(Sasaki 2011, pp. 1-83) proposes developing a total of 10,823 ac
(4,379.9 ha) adjacent to spring pygmy sunfish habitat. More than 68
percent of the proposed development site is adjacent to the Beaverdam
Spring/Creek watershed. The restricted-use area for subdivision
development, within the City of Huntsville, is a minimum of 25 feet
(7.6 meters) from the perimeter of a perennial spring. However, no
restrictions are set forth for ephemeral springs or seasonal
groundwater seepages (City of Huntsville 2007, p. 28), which include
many of the ephemeral springs, seepages, and streams draining into the
Beaverdam Spring/Creek watershed. These features are necessary for
maintenance of seasonal flow rates. Filling them or converting them to
developed areas could therefore adversely affect the spring pygmy
sunfish. In addition, there are roads proposed to connect the planned
developments with the Interstate 65 and Interstate 565 corridors
(Sasaki 2011, pp. 1-83), along with feeder roads and improvements on
primary and secondary existing roadways in support of new residential
and industrial projects (Sasaki 2011, pp. 1-83). Developed, paved-over
areas (impervious substrate) promote runoff and inhibit infiltration,
changing water flow rates from slow and incremental to fast and
localized, because stormwater is directed via surface routes into
specific areas of the receiving stream, rather than infiltrating into
the soil or draining naturally into surface water.
Pumping or diversion of springs creates unstable conditions for
spring-dependent species such as the spring pygmy sunfish through
fluctuating water levels and temperature changes. The incremental and
cumulative groundwater recharge effects on the habitat of the spring
pygmy sunfish may not become evident for years (Likens 2009, p. 90).
Within north Alabama, the availability of large quantities of
groundwater from springs has been an important factor in industrial and
urban development (Warman and Causey 1963, p. 93). It is estimated
that, by 2015, the population in Limestone and Lauderdale Counties will
increase dramatically (Roop 2010, p. 1), along with expanding
urbanization and industrialization (Sasaki 2011, pp. 1-83).
The Fort Payne Chert of the Early Mississippian Age is the
principal aquifer of spring pygmy sunfish habitat and provides
groundwater to all of Limestone County (McMaster and Harris, Jr. 1963,
p. 1). Groundwater in the County is ultimately derived from percolation
of precipitation (McMaster and Harris, Jr. 1963, p. 17) into the
aquifer system. In urban settings, percolation of rainwater to the
aquifer may be disrupted due to less pervious zones and more shunting
of rainfall into stormwater systems (Healy 2010, pp. 70-72; Younger
2007, pp. 117-121). Change in land use from rural to urban/industrial
within the Beaverdam Spring/Creek area will be detrimental to the
spring pygmy sunfish due to changes in the water quality parameters
such as oxygen and temperature, along with changes in water quantity,
such as increased stream flow and velocity, due to increased amounts of
impervious materials and associated stormwater runoff in the watershed.
This may be coupled with a subsequent reduction in precipitation
infiltrating through the soil surface to the aquifer, which will
ultimately reduce spring baseflow (Field et al. 2003, pp. 326-333;
Healy 2010, p. 3).
Water Quantity
Excessive groundwater extraction from the aquifer supplying
Beaverdam Spring/Creek is a threat to the spring pygmy sunfish
(Drennen, pers. obsv. 2007-2011; Sandel 2011, pp. 3-6; National Water
Quality Assessment (NAWQA) program, https://tn.water.usgs.gov/lten/lten.html) because of the reduction of the water levels in the aquifer
and resultant decreased spring outflow (Cook, Geological Survey of
Alabama (GSA), pers. comm., 2011). Sandel (in Kuhajda et al. 2009, p.
19; 2011, pp. 3-6) documented a relationship between pumping activities
in Moss, Horton, and Thorsen Springs and degraded spring pygmy sunfish
habitat. Specifically, in Thorsen Spring, during 2007, water was
extracted to a level that destroyed vegetation and decreased the
abundance of the spring pygmy sunfish by 99 percent (Sandel, pers.
obs., 2004 through 2009; Sandel 2011, p. 6). The proximity of the
spring pygmy sunfish's habitat to agricultural land throughout its
range makes it vulnerable to impacts due to the extraction of
groundwater for agricultural uses. Sandel (in Kuhajda et al. 2009, p.
19) estimated that up to 16,000 gpm (62,000 lpm) of water was extracted
from the Beaverdam Spring/Creek watershed for agricultural purposes
during drought conditions during the 2008 growing season. He further
estimated that this level of withdrawal desiccated and killed aquatic
vegetation necessary for the spawning, foraging, and shelter of the
species.
Commercial water withdrawal from this same aquifer by the Limestone
County pumping station, between 2006 and 2011, was over 1 billion
gallons (3.9 billion liters) at an estimated flow rate of 450 gpm
(1,740 lpm) (Holland, pers. comm., 2011). Heavy groundwater withdrawal
by the cities of Huntsville and Madison (east of the spring pygmy
sunfish habitat), and the adjacent rural population, is estimated at 16
million gallons per day (62 million liters per day) (U.S. Geological
Survey National Aquatic Water Quality Assessment 2001, 2009; Sandel,
pers. comm., 2007-2009; Kingsbury 2003, p. 2; Hoos et al. 2001, p. 1).
Withdrawal of groundwater by pumping, at high levels such as those
above, especially during drought conditions, can cause changes to water
budgets (Healy 2010, p. 15) and the natural flow of spring systems
(Alley in Likens 2009, p. 91). Pumping from wells beside streams also
lowers groundwater levels and reduces surface water flow within streams
and spring runs. In smaller streams, decreased flow caused by pumping
can be large enough to create harmful effects upon the stream and its
wildlife (Hunt 1999, pp. 98-102). Water extraction by pumping also
causes a loss of aquifer storage and lowers the pressure in the aquifer
(Theis 1935, p. 519), resulting in decreased spring flow velocity and
quantity to adjacent streams. These reductions in the natural flow
regime can adversely affect the spring pygmy sunfish.
In several large springs in the United States, groundwater
extraction for public consumption and agricultural use has impacted
listed fish species by decreasing groundwater levels. Examples include
the endangered Devil's Hole pupfish (Cyprinodon diabolis) (Hoffman et
al. 2003, p. 1248) and the endangered fountain darter (Etheostoma
fonticola) (Service 1996, p. 19). Water extraction in spring pygmy
sunfish habitat is causing desiccation and reduction of the aquatic
vegetation, and concentrating pollutants.
The effects on stream flow after water extraction stops may be
greater due to the overall decrease in water quantity in the stream.
Decreased water levels after pumping in the spring pool correspond to
decreased aquatic vegetation in the system; less water quantity
increases the desiccation of vegetation, which may negatively impact
the species (Jandebeur 1979, pp. 4-8; Mayden 1993, pp. 11-12) by
reducing the vegetative cover and contributing to eutrophication
[[Page 60185]]
of the water, as demonstrated with spring pygmy sunfish habitat impacts
and subsequent population declines in Moss, Horton, and Thorsen Springs
(Sandel pers. obs. 2004 through 2009; 2011, pp. 3-6).
Water Quality
The heavy use of chemicals within spring pygmy sunfish habitat and
the recharge areas of occupied spring systems is a potential threat to
the species. The intensive agricultural practices and proposed
urbanization and industrialization plans within the immediate area of
the watershed threaten to contaminate the groundwater in the aquifer
supplying the Beaverdam Spring/Creek site (Healy 2010, p. 70).
Transportation of contaminants to the aquifer by recharge water can be
slow and steady or highly episodic over time (Healy 2010, p. 75). In a
similar spring system in northeast Alabama, the threatened pygmy
sculpin (Cottus paulus) is believed to be impacted by the increased
concentration of toxins entering the aquifer from a nearby military
base (Thomas, pers. comm., 2009).
Fertilizers and pesticides are transported to the aquifer by
recharge, or into surface water routes, where they eventually enter
springs and are a threat to the survival of fishes found there (Hoffman
et al. 2003, p. 1248; U.S. Fish and Wildlife Service 1996, pp. 35-36).
Toxins can concentrate when spring flow is reduced, posing an even
greater threat to spring fishes. The Beaverdam Spring/Creek watershed
has the highest annual crop harvest, the highest total annual nitrogen
use, and second highest annual phosphorus use, along with elevated
pesticide usages detected in groundwater, within the Eastern Highland
Rim (Mooreland 2011, p. 2; NAWQA 2009, https://water.usgs.gov/nawqa/digmap.html; Kingsbury 2003, p. 20). Both the historic and extant
spring pygmy sunfish populations in Limestone County (Beaverdam Spring/
Creek, Pryor Springs) are within the Wheeler Lake Basin (southern
boundary of Limestone County), where Tsegaye et al. (2006, pp. 175-176)
found that rapid urbanization with associated decrease in agricultural
land cover is likely responsible for water quality degradation in
streams from non-point source phosphorus pollution. Phosphorus content
of groundwater is generally low (Wetzel 1983, p. 281). However,
urbanization increases the amount of phosphorus from residential
fertilizers and storm sewer drainage (Wetzel 1983, p. 281) that may
enter groundwater recharge areas. Phosphorus limits biological
productivity (Wetzel 1983, p. 255) by impacting organismal metabolism.
Nitrogen also impacts aquatic life. For instance, un-ionized ammonia
(which contains nitrogen) is highly toxic to fish (Hoffman et al. 2003,
p. 681). The planned development adjacent to spring pygmy sunfish
habitat is likely to increase phosphorus and nitrogen levels in the
future.
Aquatic plants, which the spring pygmy sunfish uses for spawning,
shelter, and foraging, are also impacted by indiscriminate use of
chemicals (Jandebeur 2012, p. 2; Sandel 2011, pp. 1-5, 8-9). Since
1945, herbicide usage, cattle grazing, and irrigation have occurred
throughout the spring systems and waterways that are habitat for this
species (Jandebeur 1979, pp. 4-8). Aquatic vegetation management within
Thorsen Spring, Horton Spring, and the Pryor Spring/Branch system has
removed the spring pygmy sunfish's shelter vegetation, egg substrate,
and food sites (Jandebeur 1979, pp. 4-8; Mayden 1993, p. 9; Jandebeur
2012, p. 2). Agricultural chemical contamination results in sublethal
toxic effects in fish species, affecting the immune system, hormone
regulation, reproduction, and developmental stages (Hoffman et al.
2003, pp. 1056--1063, 1242). The spring pygmy sunfish's negative
response to herbicides (Hoffman et al. 2003, p. 1242) is documented by
the subsequent reduction and eventual loss of the population in Pryor
Branch after the application of 2, 4-dichlorophenoxyacetic acid (2,4-D)
to that area in the 1940s (Jandebeur 2012, pp. 1-18). This herbicide is
toxic to fish and aquatic invertebrates, and has properties and
characteristics associated with chemicals generally detected in
groundwater contamination. Decaying vegetation caused by the
application of this herbicide also impacts fishes by reducing dissolved
oxygen levels (Environmental Protection Agency (EPA) Material Safety
Data Sheet, pp. 1-13).
Many of the same chemicals used in large-scale agricultural
practices are also used by municipal entities including urban and rural
households. Stormwater runoff from city streets, construction sites,
and storm sewers; household wastes; and leachate from septic tanks and
landfills alter the sediment load in aquatic systems and deposit
contaminants into surface and groundwater sources (Likens 2009, p. 90).
Water quality degradation from chemicals will increase with the
expected increase in urbanization and industrialization of the area.
Overgrazing by livestock is a major threat to springs, especially
where animals have free range through spring systems and wetlands. Cows
tend to congregate in wetland areas, where they consume and trample
vegetation, thereby reducing shade around the spring and increasing the
water temperature. Livestock also trample banks in springs and spring
runs, leading to increased stormwater and sediment runoff, which
eliminates habitat for invertebrate prey species (Erman 2002, p. 8;
Sada et al. 2001, pp. 14-16). Excessive sediment runoff during
stormwater events decreases water clarity, which reduces light
penetration needed for plant growth and results in impacts to the
spring pygmy sunfish's spawning and feeding sites.
Timber harvesting and land clearing can also have impacts on spring
water quality and associated spring species. Recent tree removal along
the boundary of the Wheeler National Wildlife Refuge, which is spring
pygmy sunfish habitat and part of the Beaverdam Spring/Creek system,
highlights the need for careful management of spring habitats (Hurt,
pers. comm., 2012). The removal of the trees greatly reduced the buffer
along the Beaverdam Spring/Creek system and will likely increase
sedimentation into the stream during stormwater runoff. An appropriate
mixture of shade and sunlight is needed for the proper growth and
maintenance of vegetation in the spring environment. This vegetation is
important to maintaining a stable water temperature and habitat for an
invertebrate prey base. Reducing shade by mechanical logging and
clearing can increase atypical spring flow, lead to greater spring run
flow variability, and increase sedimentation (Erman 2002, p. 9) by
altering the existing geomorphology and enhancing stormwater runoff.
Conservation Efforts To Reduce Habitat Destruction, Modification, or
Curtailment
When considering whether or not to list a species under the Act, we
must identify existing conservation efforts and their effect on the
species. Under the Act and our policy implementing this provision,
known as the Policy for Evaluation of Conservation Efforts When Making
Listing Decisions (PECE) (68 FR 15100; March 28, 2003), we must
evaluate the certainty of an effort's effectiveness on the basis of
whether the effort or plan: Establishes specific conservation
objectives; identifies the necessary steps to reduce threats or factors
for decline; includes quantifiable performance measures for the
monitoring of compliance and effectiveness; incorporates the principles
of adaptive management; is likely to be implemented; and is likely
[[Page 60186]]
to improve the species' viability at the time of the listing
determination. In general, in order to meet these standards for the
spring pygmy sunfish, conservation efforts must, at minimum, report
data on existing populations, describe activities taken toward
conservation of the species, demonstrate either through data collection
or best available science how these measures will alleviate threats,
provide for a mechanism to integrate new information (adaptive
management), and provide information regarding certainty of the
implementation (e.g., funding and staffing mechanisms).
The Service entered into a CCAA for the benefit of the spring pygmy
sunfish with Belle Mina Farms, Ltd., and the Land Trust of Huntsville
and North Alabama (Land Trust) on June 7, 2012. The area covered under
the CCAA is approximately 3,200 acres and encompasses the upper 24
percent of habitat occupied by the Beaverdam Spring/Creek
metapopulation, which is currently the only known population for the
species. Under the CCAA, the landowner agrees to implement conservation
measures to address known threats to the species. These measures will
help protect the species on his property in the near term and also
minimize any incidental take of the species that might occur as a
result of conducting other covered activities, if the species becomes
federally listed in the future. Conservation measures to be implemented
by the landowner on this property will assist in the reduction of
chemical usage and stormwater runoff from agricultural fields by
establishing and maintaining vegetated buffer zones around Moss and
Beaverdam Spring. The landowner also agrees to restrict timber harvest
and cattle grazing within the Beaverdam Spring/Creek and Moss Spring
habitats, and to refrain from any deforestation, industrial/residential
development, aquaculture, temporary or permanent ground water removal
installations, and other potentially damaging actions without prior
consultation with the Service and the Service's written agreement.
These actions will minimize impacts and help to maintain groundwater
recharge of the aquifer and adequate spring flow. The Land Trust will
conduct monitoring on the progress of the conservation actions and
annual habitat analyses.
The CCAA and associated enhancement of survival permit have a
duration of 20 years; however, under a special provision of this CCAA,
if at any time a 15 percent decline in the status of the spring pygmy
sunfish is determined, there will be a reevaluation of the conservation
measures set forth in the CCAA. If such a reevaluation reflects a need
to change the conservation measures, the amended measure(s) will be
implemented or the CCAA will be terminated and the permit surrendered.
Conservation efforts set forth in this CCAA are a positive step
toward the conservation of the spring pygmy sunfish. These conservation
actions will reduce the severity of some of the threats to the species
outlined under Factor A within the upper portion of the Beaverdam
Spring/Creek and Moss Spring sites. However, these conservation
measures and the CCAA are restricted to only the upper 24 percent of
occupied habitat in the Beaverdam Spring/Creek complex. There is no
protection for the 24 percent of the species' habitat within the middle
reach of the Beaverdam Spring/Creek System. The remaining 52 percent of
the species' habitat, although it is federally owned and protected, is
considered marginal habitat in the lower reach of the Beaverdam Spring/
Creek System. In the middle and non-protected area below the CCAA
protected site, land use practices continue to contribute to water
quantity and water quality degradation. In addition, the large-scale
development planned adjacent to this species' habitat, and outside the
boundaries of the land enrolled in the CCAA, continues to pose a threat
to the spring pygmy sunfish and its habitat. Furthermore, since this
CCAA has been just recently enacted, there has yet to be long-term
monitoring, which is needed to evaluate the overall effectiveness of
these efforts.
Summary of Factor A
As discussed above, the spring pygmy sunfish and its habitat are
currently facing the threats of both declining water quality and
quantity. Excessive groundwater usage, and the resultant reduction of
the water levels in the aquifer/recharge areas and decreased spring
outflow in the Beaverdam Spring/Creek system, is believed to have
negatively impacted the spring pygmy sunfish and its habitat.
Contamination of the recharge area and aquifer from the intensive use
of chemicals (i.e., herbicides, pesticides, fertilizers) within the
spring pygmy sunfish's habitat poses a threat to the species' survival.
Stormwater discharge from agricultural lands and urban sites compounds
the water quality degradation by increasing sediment load and
depositing contaminants into surface and groundwater sources. In
addition, the large-scale residential and industrial development
planned adjacent to the Beaverdam Spring/Creek system will exacerbate
the decreasing water quantity and quality issues within the habitat of
the spring pygmy sunfish's single metapopulation. Overgrazing by
livestock and land clearing near and within the spring systems reduces
the vegetation in the spring and increases stormwater and sediment
runoff, posing a threat to the single spring pygmy sunfish population,
particularly in the middle and lower portions of its range.
Based on our review of the best commercial and scientific data
available, we conclude that the present or threatened destruction,
modification, and curtailment of its habitat or range is currently a
threat to the spring pygmy sunfish and is expected to persist and
possibly escalate in the future, particularly in light of the
increasing demands for groundwater and large-scale development that is
planned near this species' habitat. While the CCAA has reduced some of
the threats under this factor, it only covers a portion of the extant
range of the species, and will not ameliorate all threats of ongoing
and potential water quantity and water quality degradation.
Factor B: Overutilization for Commercial, Recreational, Scientific, or
Educational Purposes
The spring pygmy sunfish is not a commercially valuable species.
However, this species has been actively sought by researchers since its
discovery in 1937. Overcollecting may have been a localized factor in
the historical decline of this species, particularly within the
introduced population in Pryor Spring/Branch (Jandebeur 2012, p. 14);
however, the overall impact of collection on the spring pygmy sunfish
population is unknown (Jandebeur 2012, p. 14). The localized
distribution and small size of known populations renders them
vulnerable to overzealous recreational or scientific collecting.
However, at this time we have no specific information indicating that
overcollection rises to the level to pose a threat to the species now
or in the future. Therefore, we find that overutilization for
commercial, recreational, scientific, or educational purposes does not
constitute a threat to the spring pygmy sunfish at this time.
Factor C: Disease or Predation
Diseases of the spring pygmy sunfish are poorly known, and we have
no specific information indicating that disease occurs within spring
pygmy sunfish populations or poses a threat to the species. Eggs,
juveniles, and adult spring pygmy sunfish are preyed upon by some
invertebrate species, parasites, and vertebrate species such as frogs,
snakes, turtles, other fish, and piscivorous (fish-eating) birds. It is
[[Page 60187]]
possible that predation increases when fish are concentrated in smaller
areas when groundwater is depleted through water extraction. However,
we have no evidence of any specific declines in the spring pygmy
sunfish due to predation.
In summary, we conclude that the best scientific and commercial
information available indicates, at the present time, that diseases or
predation are not threats to the spring pygmy sunfish.
Factor D: The Inadequacy of Existing Regulatory Mechanisms
The spring pygmy sunfish and its habitat are afforded some
protection from surface water quality and habitat degradation under the
Clean Water Act (33 U.S.C. 1251 et seq.), and the Alabama Water
Pollution Control Act (Code of Alabama, sections 22-22-1 et seq.) and
regulations promulgated by the Alabama Department of Environmental
Management (Maynard and Gale 1995, pp. 20-28). While these laws have
resulted in some improvement in water quality and stream habitat for
aquatic life, such as requiring landowners engaged in agricultural
practices to have an erosion prevention component within their farm
plan, alone they have not been fully adequate to protect this species
due to inconsistent implementation, monitoring, and enforcement.
Furthermore, habitat degradation is ongoing despite the protection
afforded by these laws.
The State of Alabama maintains water-use classifications through
issuance of National Pollutant Discharge Elimination System (NPDES)
permits to industries, municipalities, and others; these permits set
maximum limits on certain pollutants or pollutant parameters. For water
bodies on the Clean Water Act's section 303(d) List of Impaired Water
Bodies, States are required under the Clean Water Act to establish a
total maximum daily load (TMDL) for the pollutants of concern that will
bring water quality into the applicable standard. Many of the water
bodies within the occupied range of the spring pygmy sunfish do not
meet Clean Water Act standards (Alabama 2008 section 303(d) List of
Impaired Water Bodies).
The State of Alabama's surface water quality standards, adopted
from the national standards set by the EPA, were established with the
intent to protect all aquatic resources within the State of Alabama.
These water quality regulations appear to be protective of the spring
pygmy sunfish as long as discharges are within permitted limits and are
enforced according to the provisions of the Clean Water Act.
Unregulated and indiscriminate groundwater and surface water extraction
has been identified as a threat to spring species (see Factor A
discussion above). Within the State of Alabama, regulations concerning
groundwater issues are limited (Alabama Law Review 1997, p. 1). Alabama
common law follows a ``reasonable use rule'' for the extraction of
groundwater, and there is a statutory framework that regulates and
governs groundwater extraction (Chapman et al. 2005, p. 9; Alabama
Water Resources Act, Code of Alabama, sections 9-10B-1 et seq.). Water
users must file a declaration of beneficial use, be issued a
certificate of use, and be permitted and monitored periodically. The
Alabama Water Commission can place restrictions on certificates of use
in certain designated water capacity stressed areas; however, the
Alabama Water Commission has not identified any stressed groundwater
areas in or near spring pygmy sunfish habitat. Large volumes of
groundwater continue to be extracted in areas not identified as
``stressed groundwater areas'' such as the Beaverdam Spring/Creek
watershed, and this likely depresses water levels in nearby wells
(Hairston et al. 1990, p. 7) and springs (Younger 2007, p. 162). Such
groundwater extraction has likely depleted the aquifer that supplies
water to Beaverdam Spring and the spring pygmy sunfish. Thus, water use
restrictions under common law (Chapman et al. 2005, p. 10) provide
marginal protection for the species.
Summary of Factor D
The spring pygmy sunfish and its habitat are afforded limited
protection from surface water quality and habitat degradation under
Federal and State regulations. Notwithstanding this limited protection,
large volumes of groundwater are continually extracted, and these
extractions likely threaten the aquifer that supplies water to spring
pygmy sunfish habitat. Degradation of habitat within the current range
of this species is ongoing despite the protections afforded by these
existing laws. Therefore, based on the best scientific and commercial
information available, we consider the inadequacy of existing
regulatory mechanisms to be a threat to spring pygmy sunfish.
Factor E: Other Natural or Manmade Factors Affecting Its Continued
Existence
Impediments to migration, connectivity, and gene flow between or
within spring systems are threats to maintaining genetic diversity in
the spring pygmy sunfish. Habitat connectivity is critical to
maintaining heterozygosity (genetic diversity) within populations of
the species and reducing inbreeding, thereby maintaining the integrity
of the population (Hallerman 2003, pp. 363-364). Connectivity of spring
pygmy sunfish habitats is also necessary for improvement in water
quality through flushing and diluting pollutants and increasing water
quantity, and by linking spring segments together. Connectivity
maintains water flow between Beaverdam Spring/Creek habitats and allows
for potential colonization of unoccupied areas when conditions become
favorable for the species. Mechanical fragmentation of the habitat has
formed smaller, isolated subpopulations of spring pygmy sunfish.
Localized environmental changes caused by agriculture, urbanization,
and other anthropogenic disturbances of the spring systems throughout
the watersheds of the Eastern Highland Rim have exacerbated
fragmentation of spring habitat (Sandel 2011, pp. 3-6; 2008, pp. 2-4,
13). Over time, this fragmentation of the spring pygmy sunfish's
habitat will impose negative selective pressures on the species'
populations, such as genetic isolation; reduction of space for rearing,
recruitment, and reproduction; reduction of adaptive capabilities; and
increased likelihood of local extinctions (Sandel 2011, pp. 8-10;
Burkhead et al. 1997, pp. 397-399).
Climate Change
``Climate'' refers to an area's long-term average weather
statistics (typically for at least 20- or 30-year periods), including
the mean and variation of surface variables such as temperature,
precipitation, and wind; ``climate change'' refers to a change in the
mean or variability or both of climate properties that persists for an
extended period (typically decades or longer), whether due to natural
processes or human activity (Intergovernmental Panel on Climate Change
(IPCC) 2007a, p. 26). Although changes in climate occur continuously
over geological time, changes are now occurring at an accelerated rate.
For example, at continental, regional, and ocean basin scales, recent
observed changes in long-term trends include: A substantial increase in
precipitation in eastern parts of North American and South America,
northern Europe, and northern and central Asia, and an increase in
intense tropical cyclone activity in the North Atlantic since about
1970 (IPCC 2007a, p. 30); and an increase in annual average temperature
of more than 2[emsp14][deg]F
[[Page 60188]]
(1.1 [deg]C) across United States since 1960 (Global Climate Change
Impacts in the United States (GCCIUS) 2009, p. 27). Examples of
observed changes in the physical environment include: An increase in
global average sea level, and declines in mountain glaciers and average
snow cover in both the northern and southern hemispheres (IPCC 2007a,
p. 30); substantial and accelerating reductions in Arctic sea-ice
(e.g., Comiso et al. 2008, p. 1); and a variety of changes in ecosystem
processes, the distribution of species, and the timing of seasonal
events (e.g., GCCIUS 2009, pp. 79-88).
The IPCC used Atmosphere-Ocean General Circulation Models and
various greenhouse gas emissions scenarios to make projections of
climate change globally and for broad regions through the 21st century
(Randall et al. 2007, pp. 596-599), and reported these projections
using a framework for characterizing certainty (Solomon et al. 2007,
pp. 22-23). For example: (1) It is virtually certain there will be
warmer and more frequent hot days and nights over most of the earth's
land areas; (2) it is very likely there will be increased frequency of
warm spells and heat waves over most land areas, and the frequency of
heavy precipitation events will increase over most areas; and (3) it is
likely that increases will occur in the incidence of extreme high sea
level (excludes tsunamis), intense tropical cyclone activity, and the
area affected by droughts (IPCC 2007b, p. 8, Table SPM.2). More recent
analyses using a different global model and comparing other emissions
scenarios resulted in similar projections of global temperature change
across the different approaches (Prinn et al. 2011, pp. 527, 529).
All models (not just those involving climate change) have some
uncertainty associated with projections due to assumptions used, data
available, and features of the models; with regard to climate change
this includes factors such as assumptions related to emissions
scenarios, internal climate variability, and differences among models.
Despite this, however, under all global models and emissions scenarios,
the overall projected trajectory of surface air temperature is one of
increased warming compared to current conditions (Meehl et al. 2007, p.
762; Prinn et al. 2011, p. 527). Climate models, emissions scenarios,
and associated assumptions, data, and analytical techniques will
continue to be refined, as will interpretations of projections, as more
information becomes available. For instance, some changes in conditions
are occurring more rapidly than initially projected, such as melting of
Arctic sea-ice (Comiso et al. 2008, p. 1; Polyak et al. 2010, p. 1797),
and since 2000, the observed emissions of greenhouse gases, which are a
key influence on climate change, have been occurring at the mid- to
higher levels of the various emissions scenarios developed in the late
1990s and used by the IPCC for making projections (e.g., Raupach et al.
2007, Figure 1, p. 10289; Manning et al. 2010, Figure 1, p. 377; Pielke
et al. 2008, entire). Also, the best scientific and commercial data
available indicate that average global surface air temperature is
increasing and several climate-related changes are occurring and will
continue for many decades even if emissions are stabilized soon (e.g.,
Meehl et al. 2007, pp. 822-829; Church et al. 2010, pp. 411-412;
Gillett et al. 2011, entire).
Changes in climate can have a variety of direct and indirect
impacts on species, and can exacerbate the effects of other threats.
Rather than assessing ``climate change'' as a single threat in and of
itself, we examine the potential consequences to species and their
habitats that arise from changes in environmental conditions associated
with various aspects of climate change. For example, climate-related
changes to habitats, predator-prey relationships, disease and disease
vectors, or conditions that exceed the physiological tolerances of a
species, occurring individually or in combination, may affect the
status of a species. Vulnerability to climate change impacts is a
function of sensitivity to those changes, exposure to those changes,
and adaptive capacity (IPCC 2007, p. 89; Glick et al. 2011, pp. 19-22).
As described above, in evaluating the status of a species, the Service
uses the best scientific and commercial data available, and this
includes consideration of direct and indirect effects of climate
change. As is the case with all potential threats, if a species is
currently affected or is expected to be affected by one or more
climate-related impacts, this does not necessarily mean the species is
an endangered or threatened species as defined under the Act. If a
species is listed as endangered or threatened, this knowledge regarding
its vulnerability to, and impacts from, climate-associated changes in
environmental conditions can be used to help devise appropriate
strategies for its recovery.
While we do not have specific information concerning the effect of
climate change on spring pygmy sunfish and its habitat, we do know that
climate affects groundwater budgets (inflow and outflow) by influencing
precipitation and evaporation and, therefore, the rates and
distribution of recharge of the aquifer. Climate also affects human
demands for groundwater and affects plant transpiration from shallow
groundwater in response to solar energy and changing depths to the
water table (Likens 2009, p. 91). Chronic regional drought between 2000
and 2005 within the Tennessee Valley decreased rates of surface water
flow and aquifer recharge. Water extraction (of both groundwater and
surface water) during drought periods exacerbated damage to the spring
pygmy sunfish and its habitat (Sandel 2009, p. 15).
Long-term droughts have impacts on groundwater by increasing
groundwater extraction for public consumption and agriculture, which in
turn does not replenish surface waters (Likens 2009, p. 91). The
prolonged drought within northern Alabama during 2006 to 2008 was
exceptional (Jandebeur 2012, p. 13) and, along with the severe drought
of 1950 to 1963 (Jandebeur 2012, p. 13), may have contributed to the
demise of the Pryor Spring/Branch population of the spring pygmy
sunfish by increasing toxic concentrations of herbicides and by
increasing the desiccation of aquatic vegetation.
Conservation Efforts To Reduce or Eliminate Other Natural or Manmade
Factors
The CCAA will likely reduce some of the threats to groundwater
caused by climate change within the upper portion of the species' range
by minimizing impacts and helping to maintain groundwater recharge of
the aquifer, protecting surface water flow, and limiting groundwater
extraction. Under the CCAA, the Service will provide technical
assistance and groundwater management advice. Additionally, adaptive
management measures of the CCAA concern groundwater usage, including
pumping from the aquifer and avoidance of temporary or permanent ground
water removal installations. Also under the CCAA, the landowner will
not engage in practices that may disturb water quality during low water
levels in drought periods, such as pesticide and herbicide use, stock
farm ponds, and aquaculture, within the designated protected area.
These conservation measures will help protect the species on this
property in the near term and also minimize any incidental take of the
species that might occur as a result of conducting other covered
activities, should the species become listed in our final
determination. However, because of anthropogenic factors such as
urbanization or intensive agriculture, these conservation measures may
be inadequate during drought
[[Page 60189]]
periods caused by climate change or other natural phenomena.
Summary of Factor E
In summary, habitat fragmentation and its resulting effects on gene
flow and potential demographic impacts within the population is a
substantial threat and is affecting the spring pygmy sunfish's
continued existence. Climate change, in particular drought, affects
groundwater budgets (inflow and outflow) by influencing the rates and
distribution of recharge of the aquifer, affects human demands for
groundwater, and affects plant transpiration from shallow groundwater
reserves. Based on the best available information, we conclude that the
spring pygmy sunfish faces threats from other natural or manmade
factors affecting its continued existence. These threats continue
despite the beneficial effects of the CCAA.
Finding
As required by the Act, we conducted a review of the status of the
species and considered the five factors in assessing whether the spring
pygmy sunfish is endangered or threatened throughout all or a
significant portion of its range. We examined the best scientific and
commercial information available regarding the past, present, and
future threats faced by the spring pygmy sunfish. We reviewed the
petition, information available in our files, and other available
published and unpublished information, and we consulted with recognized
spring pygmy sunfish experts and other Federal and State agencies.
The identified threats to the spring pygmy sunfish are attributable
to Factors A, D, and E, as described in more detail in the Summary of
Information Pertaining to the Five Factors section above. The primary
threat to the species is from habitat modification (Factor A) in the
form of planned urban and industrial development of land adjacent to
spring pygmy sunfish habitat and the resultant impacts to the
surrounding aquifer recharge area, coupled with ongoing threats
associated with ground and surface water withdrawal and water quality
within the spring systems where this species currently occurs and
historically occurred. We find that this threat of increased urban and
industrial development and the associated infrastructure, along with
the current human use of the area, is a threat to the spring pygmy
sunfish, causing direct mortality as well as permanent loss,
fragmentation, or alteration of its habitat.
The degradation of habitat throughout the species' range is ongoing
despite the protections afforded by existing Federal and State laws and
policies (Factor D). Habitat fragmentation and its resulting effects on
gene flow and potential demographic impacts within the population is a
threat (Factor E) and is affecting the spring pygmy sunfish's continued
existence. The recently established CCAA provides a measure of
protection for the species in the upper reach of the population, with
the implementation of conservation measures that increase or preserve
water quantity and reduce water quality degradation and prohibit any
potentially damaging land use actions in that area (Factor A). However,
these conservation measures only extend to that portion of the
population enrolled in the CCAA, which protects 24 percent of the total
occupied habitat. Although this CCAA reduces some of the threats under
Factors A and E, the CCAA is not able to ameliorate all of the threat
factors to this species rangewide.
Based on our evaluation of the best scientific and commercial
information available regarding the past, present, and future threats
faced by the spring pygmy sunfish, we have determined the continued
existence of the spring pygmy sunfish is under threat from: Ongoing and
planned urban and industrial development and associated activities;
ongoing agricultural practices, including water extraction from
groundwater and surface water; the reduction of aquifer recharge,
resulting in changes in hydrology; surface and groundwater pollution;
past and present use of fertilizers and pesticides; climate change;
inadequate regulatory mechanisms; and habitat fragmentation and
resultant interruption in gene flow. These threats exist despite the
beneficial effects of the CCAA. Because the species faces these threats
throughout its extremely limited range, we find that the spring pygmy
sunfish is warranted for listing throughout its range.
Status Evaluation
The Act defines an endangered species as any species that is in
danger of extinction throughout all or a significant portion of its
range, and a threatened species as one that is likely to become
endangered in the foreseeable future throughout all or a significant
portion of its range. In this proposal of the status of the spring
pygmy sunfish, we take into account the protection afforded to the
springhead and upper portion of the population through the established
CCAA (helping to moderate threats under Factors A and E), and look
carefully at future potential threats, especially the potential impact
of residential and commercial development, which is currently only in
the planning stage. Based on our evaluation of the best available
scientific and commercial information related to the extremely
restricted range of the species, threats to it and its habitat, future
potential threats, and conservation measures currently underway through
an established CCAA, we have determined that the species is threatened
by multiple factors (Factors A, D, and E) throughout all of its range.
Specifically, we have determined that the species is likely to become
endangered in the foreseeable future, and therefore meets the
definition of a threatened species. Threatened status was determined to
be proposed for the spring pygmy sunfish because it is not considered
to be in immediate danger of extinction primarily due to the ongoing
conservation measures in the CCAA, which offers protection to the
Beaverdam springhead and the most robust portion of the population. In
addition, impacts to the species from large-scale industrial and
residential development adjacent to the spring are not imminent, as
developments are still in the planning stage. The species is not
endangered, because it is not currently in immediate danger of
extinction, but as noted, we find that it is likely to become in danger
of extinction throughout its range in the foreseeable future, which is
the definition of a threatened species. Because the range of the
species consists of a single occurrence location, and we have
determined that the species is at risk of becoming endangered in that
location, we do not need to further analyze whether there may be a
significant portion of the range of the species that has a different
status.
Available Conservation Measures
Conservation measures provided to species listed as endangered or
threatened under the Act include recognition, recovery actions,
requirements for Federal protection, and prohibitions against certain
practices. Recognition of a species through listing results in
increased public awareness and more focused conservation efforts by
Federal, State, Tribal, and local agencies; private organizations; and
individuals. The Act encourages cooperation with the States and
requires that recovery actions be carried out for all listed species.
The protection measures required of Federal agencies and the
prohibitions against certain activities involving listed wildlife are
discussed, in part, below, and
[[Page 60190]]
additionally in the Effects of Critical Habitat Designation section of
this proposed rule below.
The primary purpose of the Act is the conservation of endangered
and threatened species and the ecosystems upon which they depend. The
ultimate goal of such conservation efforts is the recovery of these
listed species, so that they no longer need the protective measures of
the Act. Subsection 4(f) of the Act requires the Service to develop and
implement recovery plans for the conservation of endangered and
threatened species. The recovery planning process involves the
identification of actions that are necessary to halt or reverse the
species' decline by addressing the threats to its survival and
recovery. The goal of this process is to restore listed species to a
point where they are secure, self-sustaining, and functioning
components of their ecosystems.
Recovery planning includes the development of a recovery outline
shortly after a species is listed, preparation of a draft and final
recovery plan, and revisions to the plan as significant new information
becomes available. The recovery outline guides the immediate
implementation of urgent recovery actions and describes the process to
be used to develop a recovery plan. The recovery plan identifies site-
specific management actions that will achieve recovery of the species,
measurable criteria that determine when a species may be downlisted or
delisted, and methods for monitoring recovery progress. Recovery plans
also establish a framework for agencies to coordinate their recovery
efforts and provide estimates of the cost of implementing recovery
tasks. Recovery teams (comprised of species experts, Federal and State
agencies, nongovernment organizations, and stakeholders) are often
established to develop recovery plans. When completed, the recovery
outline, draft recovery plan, and the final recovery plan will be
available on our Web site (https://www.fws.gov/endangered), or from our
Mississippi Ecological Services Field Office (see FOR FURTHER
INFORMATION CONTACT).
Implementation of recovery actions generally requires the
participation of a broad range of partners, including other Federal
agencies, States, Tribal, nongovernmental organizations, businesses,
and private landowners. Examples of recovery actions include habitat
restoration (e.g., restoration of native vegetation), research, captive
propagation and reintroduction, and outreach and education. The
recovery of many listed species cannot be accomplished solely on
Federal lands because their range may also occur on non-Federal lands.
To achieve recovery of these species requires cooperative conservation
efforts on private, State, and Tribal lands. The CCAA between the
Service, Belle Mina Farms Ltd., and the Land Trust identifies several
strategies that will support recovery efforts, including: (1)
Maintenance of vegetation buffer zones along the springs; (2)
prohibition of cattle within the spring; (3) prohibition of
deforestation, land clearing, industrial development, residential
development, aquaculture, temporary or permanent ground water removal
installations, stocked farm ponds, pesticide and herbicide use, and
impervious surface installation within the protected area of the CCAA;
and (4) establishment of a biological monitoring program for the spring
pygmy sunfish and its habitat.
If this species is listed, funding for recovery actions will become
available from a variety of sources, including Federal budgets, State
programs, and cost share grants for non-Federal landowners, the
academic community, and nongovernmental organizations. In addition,
under section 6 of the Act, the State of Alabama would be eligible for
Federal funds to implement management actions that promote the
protection and recovery of the spring pygmy sunfish. Information on our
grant programs that are available to aid species recovery can be found
at: https://www.fws.gov/grants.
Although the spring pygmy sunfish is only proposed for listing
under the Act at this time, please let us know if you are interested in
participating in recovery efforts for this species. Additionally, we
invite you to submit any new information on this species whenever it
becomes available and any information you may have for recovery
planning purposes (see FOR FURTHER INFORMATION CONTACT).
Section 7(a) of the Act requires Federal agencies to evaluate their
actions with respect to any species that is proposed or listed as
endangered or threatened and with respect to its critical habitat, if
any is designated. Regulations implementing this interagency
cooperation provision of the Act are codified at 50 CFR part 402.
Section 7(a)(4) of the Act requires Federal agencies to confer with the
Service on any action that is likely to jeopardize the continued
existence of a species proposed for listing or result in destruction or
adverse modification of proposed critical habitat. If a species is
listed subsequently, section 7(a)(2) of the Act requires Federal
agencies to ensure that activities they authorize, fund, or carry out
are not likely to jeopardize the continued existence of the species or
destroy or adversely modify its critical habitat. If a Federal action
may affect a listed species or its critical habitat, the responsible
Federal agency must enter into formal consultation with the Service.
Federal agency actions within the species' habitat that may require
conference or consultation or both as described in the preceding
paragraph include Federal activities that may affect spring pygmy
sunfish, including, but not limited to: The carrying out or the
issuance of permits for discharging fill material on wetlands for road
or highway construction; installation of utility easements; development
of residential, industrial, and commercial facilities; unsustainable
farming practices, including indiscriminate use of chemicals, and
decreasing buffers around fields and drainage ditches and swales;
channeling or other stream geomorphic changes; discharge of
contaminated or sediment laden waters; wastewater facility development;
and excessive groundwater and surface water extraction. Additional
actions that may require conference or consultation or both include:
(1) Actions that would significantly alter the structure and
function of the spring system. Such actions or activities could
include, but are not limited to, the filling or excavation of spring
heads, spring pools, spring-fed wetlands, and spring runs. The filling
or excavation of the spring system would alter the hydrology of the
site and would destroy the vegetation, water quality, and water
quantity where spring pygmy sunfish spends all of its life stages. The
filling or excavation of the spring systems could result in the direct
mortality of the species where the species is known to occur.
(2) Actions that would significantly alter the aquatic vegetation
structure in and around the spring associated wetland. Such actions or
activities could include, but are not limited to, vegetation cutting or
herbicide usage for expanding or maintaining roads, construction of new
roads, maintenance of agricultural fields, construction of new
agricultural fields, development of new residences, development of new
commercial establishments, or industrial development. Alteration of the
vegetation structure would likely change the spring-fed wetland
characteristics by changing the microhabitat (e.g., change in
temperature and humidity levels) and could result in direct mortality
of individuals and egg clutches through desiccation from sun exposure.
[[Page 60191]]
(3) Actions that may alter the natural outflow and quantity of
water from the spring head and through the spring run into the stream
channels. Such actions or activities could include, but are not limited
to, changes in the hydrology of Beaverdam Spring/Creek and related
recharge area and aquifer. These actions include, but are not limited
to, excessive water extraction for public, municipal, industrial, and
agricultural usages.
(4) Actions that would significantly degrade water quality
parameters such as pH, alkalinity, conductivity, turbidity, and others
(i.e., contaminants, excess nutrients). Stormwater discharge laden with
chemicals and sediments can enter groundwater and surface water
systems. Decreasing water quantity concentrates chemicals and also
encourages eutrophic (nutrient rich) conditions.
The Act and its implementing regulations set forth a series of
general prohibitions and exceptions that apply to all endangered
wildlife. The prohibitions of section 9(a)(1) of the Act, and its
implementing regulations at 50 CFR 17.21, make it illegal for any
person subject to the jurisdiction of the United States to take (which
includes harass, harm, pursue, hunt, shoot, wound, kill, trap, capture,
or collect, or to attempt any of these), import, export, ship in
interstate commerce in the course of commercial activity, or sell or
offer for sale in interstate or foreign commerce any listed species.
The regulations at 50 CFR 17.31 extend the prohibitions listed above to
threatened species, with certain exceptions. Under the Lacey Act (18
U.S.C. 42-43; 16 U.S.C. 3371-3378), it is also illegal to possess,
sell, deliver, carry, transport, or ship any such wildlife that has
been taken illegally. Certain exceptions apply to agents of the Service
and State conservation agencies.
We may issue permits to carry out otherwise prohibited activities
involving endangered and threatened wildlife species under certain
circumstances. Regulations governing permits are codified at 50 CFR
17.22 for endangered species, and at 17.32 for threatened species. With
regard to endangered wildlife, a permit must be issued for take for the
following purposes: for scientific purposes, to enhance the propagation
or survival of the species, and for incidental take in connection with
otherwise lawful activities.
It is our policy, as published in the Federal Register on July 1,
1994 (59 FR 34272), to identify, to the maximum extent practicable at
the time a species is listed, those activities that would or would not
constitute a violation of section 9 of the Act. The intent of this
policy is to increase public awareness of the effect of a proposed
listing on proposed and ongoing activities within the range of the
species proposed for listing. The following activities could
potentially result in a violation of section 9 of the Act; this list is
not comprehensive:
(1) Unauthorized collecting, handling, possessing, selling,
delivering, carrying, or transporting of the species, including import
or export across State lines and international boundaries, except for
properly documented antique specimens of these taxa at least 100 years
old, as defined by section 10(h)(1) of the Act;
(2) Introduction of species that compete with or prey upon the
spring pygmy sunfish;
(3) The unauthorized release of biological control agents that
attack this species' habitat or any of its life stages;
(4) Unauthorized modification of the vegetation composition or
hydrology, or violation of any discharge or water withdrawal permit
that results in harm or death to any individuals of this species or
that results in degradation of its occupied habitat to an extent that
essential behaviors such as breeding, feeding, and sheltering are
impaired;
(5) Unauthorized destruction or alteration of their habitats (such
as channelization, dredging, sloping, removing of substrate, or
discharge of fill material) that impairs essential behaviors, such as
breeding, feeding, or sheltering, or that results in killing or
injuring spring pygmy sunfish; and
(6) Unauthorized discharges or dumping of toxic chemicals or other
pollutants into the aquifer directly through wells or into the spring
system or indirectly into recharge areas supporting spring pygmy
sunfish that kills or injures the species or that otherwise impairs
essential life-sustaining requirements, such as breeding, feeding, or
sheltering (destruction of vegetation and substrate).
Questions regarding whether specific activities would constitute a
violation of section 9 of the Act should be directed to the Mississippi
Ecological Services Field Office (see FOR FURTHER INFORMATION CONTACT).
Requests for copies of the regulations concerning listed animals and
general inquiries regarding prohibitions and permits may be addressed
to the U.S. Fish and Wildlife Service, Endangered Species Permits, 1875
Century Blvd. NE., Atlanta, GA 30345 (telephone 404-679-7313; facsimile
404-679-7081).
Critical Habitat
Background
It is our intent to discuss below only those topics directly
relevant to the designation of critical habitat for the spring pygmy
sunfish in this section of the proposed rule.
Critical habitat is defined in section 3 of the Act as:
(1) The specific areas within the geographical area occupied by the
species, at the time it is listed in accordance with the Act, on which
are found those physical or biological features
(a) Essential to the conservation of the species and
(b) Which may require special management considerations or
protection; and
(2) Specific areas outside the geographical area occupied by the
species at the time it is listed, upon a determination that such areas
are essential for the conservation of the species.
Conservation, as defined under section 3 of the Act, means to use
and the use of all methods and procedures that are necessary to bring
an endangered or threatened species to the point at which the measures
provided under the Act are no longer necessary. Such methods and
procedures include, but are not limited to, all activities associated
with scientific resources management such as research, census, law
enforcement, habitat acquisition and maintenance, propagation, live
trapping, and transplantation, and, in the extraordinary case where
population pressures within a given ecosystem cannot be otherwise
relieved, may include regulated taking.
Critical habitat receives protection under section 7 of the Act
through the requirement that Federal agencies ensure, in consultation
with the Service, that any action they authorize, fund, or carry out is
not likely to result in the destruction or adverse modification of
critical habitat. The designation of critical habitat does not affect
land ownership or establish a refuge, wilderness, reserve, preserve, or
other conservation area. Such designation does not allow the government
or public to access private lands. Such designation does not require
implementation of restoration, recovery, or enhancement measures by
non-Federal landowners. Where a landowner seeks or requests Federal
agency funding or authorization for an action that may affect a listed
species or critical habitat, the consultation requirements of section
7(a)(2) of the Act would apply, but even in the event
[[Page 60192]]
of a destruction or adverse modification finding, the obligation of the
Federal action agency and the landowner is not to restore or recover
the species, but to implement reasonable and prudent alternatives to
avoid destruction or adverse modification of critical habitat.
Under the first prong of the Act's definition of critical habitat,
areas within the geographic area occupied by the species at the time it
is listed are included in a critical habitat designation if they
contain physical or biological features (1) which are essential to the
conservation of the species and (2) which may require special
management considerations or protection. In identifying those physical
and biological features within an area, we focus on the principal
biological or physical constituent elements (primary constituent
elements (PCEs) such as roost sites, nesting grounds, seasonal
wetlands, water quality, tide, soil type) that are essential to the
conservation of the species. Primary constituent elements are the
elements of physical or biological features that, when laid out in the
appropriate quantity and spatial arrangement to provide for a species'
life-history processes, are essential to the conservation of the
species.
Under the second prong of the Act's definition of critical habitat,
we can designate critical habitat in areas outside the geographic area
occupied by the species at the time it is listed, upon a determination
that such areas are essential for the conservation of the species. We
designate critical habitat in areas outside the geographic area
occupied by a species only when a designation limited to occupied
habitat would be inadequate to ensure the conservation of the species.
Section 4 of the Act requires that we designate critical habitat on
the basis of the best scientific and commercial data available.
Further, our Policy on Information Standards under the Endangered
Species Act (published in the Federal Register on July 1, 1994 (59 FR
34271)), the Information Quality Act (section 515 of the Treasury and
General Government Appropriations Act for Fiscal Year 2001 (Pub. L.
106-554; H.R. 5658)), and our associated Information Quality Guidelines
provide criteria, establish procedures, and provide guidance to ensure
that our decisions are based on the best scientific data available.
They require our biologists, to the extent consistent with the Act and
with the use of the best scientific data available, to use primary and
original sources of information as the basis for recommendations to
designate critical habitat.
When we are determining which areas should be designated as
critical habitat, our primary source of information is generally the
information developed during the listing process for the species.
Additional information sources may include the recovery plan for the
species, articles in peer-reviewed journals, conservation plans
developed by States and counties, scientific status surveys and
studies, biological assessments, other unpublished materials, or
experts' opinions or personal knowledge.
Habitat is dynamic, and species may move from one area to another
over time. We recognize that critical habitat designated at a
particular point in time may not include all of the habitat areas that
we may later determine are necessary for the recovery of the species.
For these reasons, a critical habitat designation does not signal that
habitat outside the designated area is unimportant or may not be needed
for recovery of the species. If we list the spring pygmy sunfish and
designate critical habitat for the species, areas that are important to
the conservation of the species, both inside and outside the critical
habitat designation, would continue to be subject to: (1) Conservation
actions implemented under section 7(a)(1) of the Act, (2) regulatory
protections afforded by the requirement in section 7(a)(2) of the Act
for Federal agencies to ensure their actions are not likely to
jeopardize the continued existence of any endangered or threatened
species, and (3) the prohibitions of section 9 of the Act if actions
occurring in these areas may affect the species. Federally funded or
permitted projects affecting listed species outside their designated
critical habitat areas may still result in jeopardy findings in some
cases. These protections and conservation tools would continue to
contribute to recovery of this species. Similarly, critical habitat
designations made on the basis of the best available information at the
time of designation would not control the direction and substance of
future recovery plans, habitat conservation plans (HCPs), or other
species conservation planning efforts if new information available at
the time of these planning efforts calls for a different outcome.
Prudency Determination
Section 4(a)(3) of the Act, as amended, and implementing
regulations (50 CFR 424.12) require that the Secretary designate
critical habitat at the time the species is determined to be endangered
or threatened to the maximum extent prudent and determinable. These
regulations (50 CFR 424.12(a)(1)) state that the designation of
critical habitat is not prudent when one or both of the following
situations exist: (1) The species is threatened by taking or other
human activity, and identification of critical habitat can be expected
to increase the degree of threat to the species; or (2) such
designation of critical habitat would not be beneficial to the species.
As we have discussed above under the Factor B analysis, there is
currently no imminent threat of take attributed to collection (for
commercial, recreational, scientific, or educational purposes) of this
species. Moreover, there is no information to indicate that
identification of critical habitat is expected to create such a threat
to the species. In the absence of a finding that the designation of
critical habitat would increase threats to a species, then a prudent
finding is warranted if there are any benefits to a critical habitat
designation. Potential benefits of designation include: (1) Triggering
consultation under section 7 of the Act, in new areas for actions in
which there may be a Federal nexus where it would not otherwise occur
because, for example, it is or has become unoccupied or the occupancy
is in question; (2) focusing conservation activities on the most
essential features and areas; (3) providing educational benefits to
State or county governments or private entities; and (4) preventing
people from causing inadvertent harm to the species.
The primary regulatory effect of critical habitat is the section
7(a)(2) requirement that Federal agencies refrain from taking any
action that destroys or adversely modifies critical habitat. Lands
proposed for designation as critical habitat would be subject to
Federal actions that trigger section 7 consultation requirements. These
include land management planning and Federal agency actions. There may
also be educational or outreach benefits to the designation of critical
habitat. Critical habitat designation identifies those physical and
biological features of the habitat essential to the conservation of
spring pygmy sunfish and that may require special management and
protection. Accordingly, this designation would provide information to
individuals, local and State governments, and other entities engaged in
activities or long-range planning in areas essential to the
conservation of the species. Conservation of the spring pygmy sunfish
and the essential features of its habitat requires habitat management,
protection, and restoration, which would be facilitated
[[Page 60193]]
by knowledge of habitat locations and the physical and biological
features of the habitat. Based on this information, we believe critical
habitat would be beneficial to this species. Therefore, we have
determined that the designation of critical habitat for spring pygmy
sunfish is prudent.
Determinability
Our regulations (50 CFR 424.12(a)(2)) state that critical habitat
is not determinable when one or both of the following situations exist:
(1) Information sufficient to perform required analysis of the impacts
of the designation is lacking, or (2) the biological needs of the
species are not sufficiently well known to permit identification of an
area as critical habitat.
Delineation of critical habitat requires identification of the
physical and biological habitat features that are essential to the
conservation of the species. We have reviewed the available information
pertaining to the known distribution of spring pygmy sunfish and the
characteristics of the habitat currently occupied. This information
represents the best scientific and commercial data available and leads
us to conclude that, although available information is limited, it is
sufficient to identify specific areas that meet the definition of
critical habitat. Therefore, we have found that critical habitat is
determinable for spring pygmy sunfish.
Physical or Biological Features
In accordance with section 3(5)(A)(i) and 4(b)(1)(A) of the Act and
regulations at 50 CFR 424.12, in determining which areas within the
geographical area occupied by the species at the time of listing to
designate as critical habitat, we consider the physical or biological
features essential to the conservation of the species and which may
require special management considerations or protection. These include,
but are not limited to:
(1) Space for individual and population growth and for normal
behavior;
(2) Food, water, air, light, minerals, or other nutritional or
physiological requirements;
(3) Cover or shelter;
(4) Sites for breeding, reproduction, or rearing (or development)
of offspring; and
(5) Habitats that are protected from disturbance or are
representative of the historical, geographical, and ecological
distributions of a species.
We derive the specific physical and biological features required
for the spring pygmy sunfish from studies of this species' habitat,
ecology, and life history as described in the Background section of
this proposed rule and information presented below. There is limited
information on this species' specific habitat requirements, other than
it requires springs and connecting spring-fed reaches and wetlands; an
adequate groundwater and surface water hydrology; and clean, cool water
and the associated vegetation and invertebrates. To identify the
physical and biological needs of the species, we have relied on current
conditions at the locations where the species exists today and the
limited information we have on historical sites, limited information
available on this species and its close relatives, and factors
associated with the decline and extirpation of this and other spring-
associated fish species.
Space for Individual and Population Growth and for Normal Behavior
Spring pygmy sunfish depend on geomorphically stable spring systems
including the spring head, spring run, and spring pools. The spring
systems used by the species also include transition zones between these
features on moderately low-gradient topographic slopes that feather out
into spring-fed wetland pools. The spring pygmy sunfish inhabits spring
pools, spring runs, and spring-fed streams and pools with substrates of
silt, sand, and gravel.
The current range of the spring pygmy sunfish is reduced to
localized sites due to fragmentation of the spring systems on which it
depends. Fragmentation of the species' habitat has isolated populations
and reduced available space for spawning, rearing of young,
concealment, and foraging. As a result, the spring pygmy sunfish's
adaptive capability has been reduced, and the likelihood of local
extinctions has increased (Burkhead et al. 1997, pp. 397-399; Hallerman
2003, pp. 363-364). Connectivity of spring systems maintains spawning,
foraging, and resting sites, and allows for gene flow throughout the
population. Genetic variation and diversity within a species are
essential for recovery, adaptation to environmental changes, and long-
term viability (capability to live, reproduce, and develop) (Harris
1984, pp. 93-107; Noss and Cooperrider 1994, pp. 282-297; Fluker et al.
2007, p. 2). Long-term viability is founded on space for numerous
interbreeding, local populations throughout the range (Harris 1984, pp.
93-107).
Therefore, based on the information above, we identify springs and
connecting spring-fed reaches and wetlands of geomorphically stable,
relatively low-gradient, headwater springs with spring heads, spring
runs, and spring pools that filter into shallow vegetated wetlands to
be an essential physical or biological feature for the spring pygmy
sunfish. The connectivity of these habitats is essential in
accommodating feeding, breeding, growth, and other normal behaviors of
the spring pygmy sunfish and in promoting gene flow within the
population.
Food, Water, Air, Light, Minerals, or Other Nutritional or
Physiological Requirements
Water Quality
Exceptional water quality at the spring heads and pools, and
adequate water quality throughout the habitat, maintained by
unobstructed water flow through connected spring habitats, are
essential for normal behavior, growth, and viability during all life
stages of the spring pygmy sunfish. Suitable habitat conditions for the
spring pygmy sunfish have not been investigated thoroughly; however,
some data specific to the species are available for the following water
quality parameters: pH, water temperature, specific conductivity
(ability of water to conduct an electric current, based on dissolved
solids in the water), and alkalinity (capacity of solutes in an aqueous
system to neutralize acid as HCO3). Spring pygmy sunfish males
establish territories and spawn in late February through April, when
water quality parameters are within a suitable pH range of 6.0 to 7.7,
and water temperatures are between 57.2 and 68[emsp14][deg]F (14 and 20
[deg]C) (Mettee 2008, p. 36; Sandal, 2007, p. 2; Rakes et al. 2011, p.
4). A specific conductivity of 5.5 to 14.2 micro Siemens per centimeter
at 61[emsp14][deg]F (16 [deg]C) and alkalinity of 20 to 66 milligrams
per liter (mg/l) have been reported from habitat occupied by spring
pygmy sunfish (Jandebeur 1997, p. 34).
Essential water quality attributes for the spring pygmy sunfish may
be inferred from those of other fish species living in medium water
flow streams along with baseline spring and subsurface water quality
information obtained from systems within Limestone County, adjacent
counties, and elsewhere. Based on yearly averages, these include: (1)
Dissolved oxygen levels greater than 6 parts per million (ppm); (2)
temperatures between 45 and 80[emsp14][deg]F (7.2 and 26.7 [deg]C),
with spring egg incubation temperatures from 54 to 65[emsp14][deg]F
(12.2 to 18.3 [deg]C); (3) specific conductivity of less than
approximately 300 micro Siemens per centimeter at 80[emsp14][deg]F
(26.7 [deg]C); and (4) concentrations of free or suspended solids
(organic and
[[Page 60194]]
inorganic sediments) less than 15 Nephelometric Turbidity Units (NTU;
units used to measure sediment discharge) and 20 mg/L total suspended
solids (TSS; measured as mg/L of sediment in water) (Teels et al. 1975,
pp. 8-9; Ultschet et al. 1978, pp. 99-101; Ingersoll et al. 1984, pp.
131-138; Chandler et al. 1987, pp. 56-57; Kundell and Rasmussen 1995,
pp. 211-212; Henley et al. 2000, pp. 125-139; Meyer and Sutherland
2005, pp. 43-64; McGregor et al. 2008, pp. 7-9; Knight 2011, pp. 3-8).
Nonpoint and point sources of ammonia and chlorine from commercial
water extraction facilities and agricultural fields may be primary
factors in reducing the quality of spring run waters for spring pygmy
sunfish. Agricultural withdrawals can reduce or eliminate the volume of
groundwater that is being discharged into the species' habitat and
affect water temperatures and other physical parameters.
Temperature greatly influences the form and toxicity of ammonia and
chlorine. Higher temperatures result in a shift from the nontoxic
ammonium ion (NH4\+\) to highly toxic ammonia (NH3). Chlorine is also
more toxic at higher temperatures (Hoffman et al. 2003, p. 681). Thus,
higher temperatures during the summer, along with drought and reduced
spring flows, may intensify impacts from these two chemicals on the
life stages and habitats of the spring pygmy sunfish.
Therefore, we identify the following water quality parameters to be
an essential physical or biological feature for the spring pygmy
sunfish, based on yearly averages: Optimal temperatures of 57.2 to
68[emsp14][deg]F (14 to 20 [deg]C) and not exceeding 80[emsp14][deg]F
(26.7 [deg]C); pH of 6.0 to 7.7; dissolved oxygen of 6.0 ppm or
greater; specific conductivity no greater than 300 micro Siemens per
centimeter at 80[emsp14][deg]F (26.7 [deg]C); and low concentrations of
free or suspended solids with turbidity measuring less than 15 NTU and
20 mg/L TSS.
Water Quantity
Water flow and water quantity may also vary according to season,
precipitation events, and human activities, such as groundwater and
surface water extraction, within the recharge area of the spring
system. Agriculture, industrial or human consumption, silviculture,
maintenance of roadways and utilities, and urbanization and
industrialization projects are activities that may use water that would
otherwise recharge spring systems. Connectivity of spring systems is
also important for maintaining water quality. Adequate groundwater and
recharge rates, and spring water outflow, are important to the
conservation of the spring pygmy sunfish.
Therefore, based on the information above, we identify a hydrologic
flow regime (magnitude, frequency, duration, and seasonality of
discharge overtime) necessary to maintain spring habitats to be an
essential physical or biological feature for the spring pygmy sunfish.
The instream flow from groundwater sources (spring and seep) maintains
a velocity and a continuous daily discharge from the aquifer that
allows for connectivity between habitats. Instream flow is stable and
does not vary during water extraction, and the aquifer recharge
maintains adequate levels to supply water flow to the spring head. The
flow regime does not significantly change during storm events.
Food
All pygmy sunfish species stalk invertebrates by using the dense
submergent vegetation within the spring system to conceal their
foraging activity (Walsh and Burr 1984, pp. 45-46). The aquatic
vegetation provides a ready source of food (Petty et al. 2011, p. 2)
and habitat for invertebrates. Daphnia, amphipods, chironomid larvae,
and small snails are the major components of the spring pygmy sunfish's
diet (Slate 1993, p. 3; Sandel 2009, p. 9).
Cover or Shelter and Sites for Breeding, Reproduction, or Rearing
The spring pygmy sunfish relies heavily on aquatic and emergent
vegetation in the shallow water along the margins of the runs and pools
of the spring systems where the fish occurs. The vegetation provides
cover and shelter necessary for breeding, reproduction and growth of
offspring, concealment from predators, and foraging. Species of
submergent and emergent vegetation providing important habitat for the
spring pygmy sunfish include clumps and stands of Sparganium spp. (bur
reed), Ceratophyllum spp. (coontail), Nasturtium officinale
(watercress), Juncus spp. (rush), Carex spp. (sedges), Nuphar luteum
(yellow pond lily), Myriophyllum spp. (parrot feather), Utricularia sp.
(bladderwort), Polygonum spp. (smartweed), Lythrum salicaria (purple
loosestrife), and Callitriche spp. (water starwort) (Mayden 1993, p.
11; Jandebeur 1997, pp. 42-44; Sandel 2011, pp. 3-5, 9-11). Sandel
(2009, p. 14) suggested that concentration of spring pygmy sunfish may
be associated with thick and abundant Ceratophyllum echinatum and that
the species decreases as distances increase from spring pools.
Therefore, based on the information above, we identify aquatic,
emergent and semi-emergent vegetation along the margins of spring runs
and submergent vegetation that is adequate for breeding, reproducing,
and rearing young; providing cover and shelter from predators; and
supporting the prey base of aquatic macroinvertebrates eaten by spring
pygmy sunfish to be an essential physical or biological feature for the
spring pygmy sunfish.
Primary Constituent Elements for the Spring Pygmy Sunfish
Under the Act and its implementing regulations, we are required to
identify the physical and biological features essential to the
conservation of the spring pygmy sunfish in areas occupied at the time
of listing (i.e., areas that are currently occupied), focusing on the
features' primary constituent elements. We consider primary constituent
elements (PCEs) to be the elements of physical and biological features
that provide for a species' life-history processes and that are
essential to the conservation of the species.
Based on our current knowledge of the physical or biological
features and habitat characteristics required to sustain the species'
life-history processes, as discussed above, we determine that the PCEs
specific to the spring pygmy sunfish are:
(1) Spring system. Springs and connecting spring-fed reaches and
wetlands that are geomorphically stable and relatively low-gradient.
This includes headwater springs with spring heads, spring runs, and
spring pools that filter into shallow, vegetated wetlands.
(2) Water quality. Yearly averages of water quality with optimal
temperatures of 57.2 to 68[emsp14][deg]F (14 to 20 [deg]C) and not
exceeding 80[emsp14][deg]F (26.7 [deg]C); pH of 6.0 to 7.7; dissolved
oxygen of 6.0 ppm or greater; specific conductivity no greater than 300
micro Siemens per centimeter at 80[emsp14][deg]F (26.7 [deg]C); and low
concentrations of free or suspended solids with turbidity measuring
less than 15 NTU and 20 mg/L TSS.
(3) Hydrology. A hydrologic flow regime (magnitude, frequency,
duration, and seasonality of discharge over time) necessary to maintain
spring habitats. The instream flow from groundwater sources (springs
and seeps) maintains an adequate velocity and a continuous daily
discharge from the aquifer that allows for connectivity between
habitats. Instream flow is stable and does not vary during water
extraction, and the aquifer recharge maintains
[[Page 60195]]
adequate levels to supply water flow to the spring head. The flow
regime does not significantly change during storm events.
(4) Vegetation and Prey Base. Aquatic, emergent and semi-emergent
vegetation along the margins of spring runs and submergent vegetation
that is adequate for breeding, reproducing, and rearing young;
providing cover and shelter from predators; and supporting the prey
base of aquatic macroinvertebrates eaten by spring pygmy sunfish.
Important species of submergent and emergent vegetation include clumps
and stands of Sparganium spp. (bur reed), Ceratophyllum spp.
(coontail), Nasturtium officinale (watercress), Juncus spp. (rush),
Carex spp. (sedges), Nuphar luteum (yellow pond lily), Myriophyllum
spp. (parrot feather), Utricularia spp. (bladderwort), Polygonum spp.
(smartweed), Lythrum salicaria (purple loosestrife), and Callitriche
spp. (water starwort).
Special Management Considerations or Protections
When designating critical habitat, we assess whether the specific
areas within the geographical area occupied by the species at the time
of listing contain features which are essential to the conservation of
the species and which may require special management considerations or
protection.
We find that the essential features within the area occupied at the
time of listing may require special management consideration or
protection due to threats to spring pygmy sunfish and or its habitat.
The sole proposed unit that is occupied is adjacent to roads, homes, or
other manmade structures in which various activities in or adjacent to
the critical habitat unit may affect one or more of the physical and
biological features. The features essential to the conservation of this
species are the spring systems that may require special management
considerations or protection to reduce the following threats or
potential threats: Reduction of water quantity of the groundwater/
surface hydrology by water extraction from springs or the aquifer that
provides water to the spring, and surface flow to Beaverdam Creek and
Pryor Branch; changes in the composition and abundance of vegetation in
the spring; alteration of the bottom substrate and normal sinuosity of
the system from fill material within the spring systems and spring-fed
wetlands for development projects; degradation of water quality from
uncontrolled discharge of stormwater draining agricultural fields,
roads, bridges, and urban areas; careless agricultural practices
including unmanaged livestock grazing; and road, bridge, and utility
easement maintenance (e.g., use of herbicides and resurfacing or
sealant materials).
Management activities that could ameliorate these threats or
potential threats include, but are not limited to: Establishing
permanent conservation easements or land acquisition to protect the
species on private lands; establishing additional conservation
agreements on private lands to identify and reduce threats to the
species and its features; minimizing habitat disturbance,
fragmentation, and destruction by maintaining suitable fish passage
structures under roads; providing significant buffers around the spring
components such as the spring head, spring pool, and spring run;
monitoring and regulating the withdrawal and use of groundwater and
surface water of the Beaverdam Spring/Creek system; preventing the
diminishing of the aquifer recharge area by increasing the pervious
area for percolation of rainfall back into the aquifer; limiting
impervious substrates; and minimizing water quality degradation by
stormwater runoff with catchment basins, vegetated bioswales, and other
appropriate best management practices.
Criteria Used To Identify Critical Habitat
As required by section 4(b)(2) of the Act, in developing this
proposed rule, we used the best scientific data available to propose
critical habitat for the spring pygmy sunfish. We reviewed available
information that pertains to the habitat requirements of the species.
In accordance with the Act and its implementing regulation at 50 CFR
424.12(e), we considered whether designating additional areas outside
those currently occupied (which would mean occupied at the time of
listing) is necessary to ensure the conservation of the species. We are
proposing to designate critical habitat in areas within the geographic
area currently occupied by the species (i.e., that would be considered
occupied at the time of listing). We are also proposing to designate
specific areas outside the geographic area currently occupied by the
species but that were historically occupied, because such areas are
essential for the conservation of the species.
We began our determination of which areas to propose for critical
habitat with an assessment of the critical life-history components of
the spring pygmy sunfish, as they relate to habitat. We then evaluated
current and historical sites to establish what areas are currently
occupied and contain the physical and biological features that are
essential to the conservation of the species and that may require
special management considerations or protection, as well as unoccupied
sites that might be essential for the conservation of the species. We
reviewed the available information pertaining to historic and current
distributions, life histories, and habitat requirements of this
species. Our sources included surveys, unpublished reports, and peer-
reviewed scientific literature prepared by the Alabama Department of
Conservation and Natural Resources, Alabama Geological Survey, Athens
State University, University of Alabama, the Service, spring pygmy
sunfish researchers and others, as well as Geographic Information
System (GIS) data (such as species occurrence data, habitat data, land
use topography, digital aerial photography, and ownership maps).
Currently, occupied habitat is confined to a single population
consisting of four spring pools within the upper Beaver Dam Spring/
Creek complex in Limestone County, Alabama. We believe that this area
contains all PCEs to support life-history functions essential to the
conservation of the species. However, this single population is at risk
of extirpation from stochastic events such as periodic droughts and
from existing or potential human-induced events (i.e., development,
excessive water extraction, chemical contamination). To reduce the risk
of losing this single population through these processes, it is
important to establish additional populations in areas where suitable
habitat exists. Therefore, in identifying unoccupied spring/stream
reaches that could be essential for the conservation of the spring
pygmy sunfish, we first considered the availability of potential
habitat throughout the historical range that may be suitable for the
survival and persistence of the species. We eliminated from
consideration spring/stream reaches without any historical records of
spring pygmy sunfish occurrences. We identified two sites with recorded
historical occurrences of the spring pygmy sunfish: one in Pryor
Springs in Limestone County, Alabama, and a second in Cave Springs in
Lauderdale County, Alabama. The Cave Spring site was excluded from
consideration because it was inundated with the formation of Wheeler
Reservoir in 1939. However, the Pryor Spring/Branch site, which
supported a population of spring pygmy sunfish prior to 2007 west of
Highway 31, was
[[Page 60196]]
determined to have portions of the PCEs sufficient to support the life-
history functions of the species. This currently unoccupied stream will
provide habitat for population reintroduction into a separate stream
system and reduce the level of stochastic threats to the species'
survival, decrease the risk of extinction for the species, and
contribute to the species' eventual recovery. Accordingly, we
determined that it is essential for the conservation of the species,
and therefore propose to designate it as critical habitat.
We delineated the critical habitat unit boundaries by determining
the appropriate length within these streams by identifying the upper
spring head (water source), spring pool, spring run, spring-fed
wetlands, seeps, and ephemeral streams draining into the spring
systems. We digitized the area boundary based upon visual
interpretation of wetland vegetation using ARCGIS. The high water line
in springs indicates stable flow under normal conditions. As defined at
33 CFR 329.11, the ordinary high water line on nontidal rivers and
streams is the line on the shore established by the fluctuations of
water and indicated by physical characteristics such as a clear,
natural water line impressed on the bank; shelving; changes in the
character of soil; destruction of terrestrial vegetation; the presence
of litter and debris; or other appropriate means that consider the
characteristics of the surrounding areas. For the spring pools and
associated spring-fed wetlands, the area was determined and delineated
by the presence of emergent vegetation patterns and topography as noted
on aerial photographs and topographical maps, and during field visits.
In order to set the upstream and downstream limits of these critical
habitat units, we used the spring head as the uppermost point,
identified by topographic maps, field visits, and available landmarks
(i.e., bridges and road crossings). Locations of the spring pygmy
sunfish below or downstream of the spring head were included in order
to ensure incorporation of all potential sites of occurrence. These
stream reaches were then digitized using 7.5' topographic maps and
ARCGIS to produce the critical habitat maps.
When determining proposed critical habitat boundaries, we made
every effort to avoid including developed areas such as lands covered
by buildings, pavement, and other structures because such lands lack
physical or biological features for spring pygmy sunfish. The scale of
the map we prepared under the parameters for publication within the
Code of Federal Regulations may not reflect the exclusion of such
developed lands. Any such lands inadvertently left inside critical
habitat boundaries shown on the maps of this proposed rule have been
excluded by text in the proposed rule and are not proposed for
designation as critical habitat. Therefore, if the critical habitat is
finalized as proposed, a Federal action involving these lands would not
trigger a section 7 consultation with respect to critical habitat and
the requirement of no adverse modification unless the specific action
would affect the physical or biological features in the adjacent
critical habitat.
The critical habitat designation is defined by the map or maps, as
modified by any accompanying regulatory text, presented at the end of
this document in the rule portion. We include more detailed information
on the boundaries of the critical habitat designation in this preamble.
We will make the coordinates or plot points or both on which each map
is based available to the public on https://www.regulations.gov at
Docket No. FWS-R4-ES-2012-0068, on our Web site https://www.fws.gov/mississippiES/, and at the Mississippi Ecological Services Field Office
(see FOR FURTHER INFORMATION CONTACT above).
Proposed Critical Habitat Designation
We are proposing two units as critical habitat for spring pygmy
sunfish. The critical habitat areas described below constitute our
current best assessment of the areas that meet the definition of
critical habitat for spring pygmy sunfish. The two areas proposed as
critical habitat are as follows: (1) Beaverdam Spring/Creek, which is
currently occupied; and (2) Pryor Spring/Branch, which is currently
unoccupied. Table 1 shows the occupancy of the units and ownership of
the proposed critical habitat units for the spring pygmy sunfish.
Table 1--Occupancy and Ownership of the Proposed Critical Habitat Units for the Spring Pygmy Sunfish in Limestone County, Alabama
[Area estimates reflect all land within the critical habitat unit boundary.]
--------------------------------------------------------------------------------------------------------------------------------------------------------
Private ownership km Federal ownership km Total length Total area ha
Unit Location Occupied (mi); ha (ac) (mi); ha (ac) km (mi) (ac)
--------------------------------------------------------------------------------------------------------------------------------------------------------
1................................ Beaverdam Spring/ Yes................ 5.9 (3.7); 237 (586) 3.5 (2.21); 344 9.5 (5.9) 580.7 (1,435)
Creek. (849)
2................................ Pryor Spring/Branch. No................. 0.2 (0.15); 8.1 (20) 3.1 (1.95); 65.6 3.4 (2.1) 73.6 (182)
(162)
----------------------------------------------------------------------------------------------------------------------
Total........................ .................... ................... 6.1 (3.8); 245 (606) 6.6 (4.16); 409.6 12.9 (8.0) 654.3 (1,617)
(1,011)
--------------------------------------------------------------------------------------------------------------------------------------------------------
* Totals may not sum due to rounding.
We present brief descriptions of each unit and reasons why they
meet the definition of critical habitat below. The proposed critical
habitat units include the spring systems, which are composed of the
spring heads and the flooded spring pools and spring-fed wetlands
within Beaverdam Spring/Creek and Pryor Spring/Branch.
Unit 1: Beaverdam Spring/Creek, Limestone County, Alabama
Unit 1 includes a total of 9.5 km (5.9 mi) of Beaverdam Spring/
Creek, northeast of Greenbrier, Alabama, from the spring head, 5.6 km
(3.5 mi) north of Interstate 565, to 3.9 km (2.4 mi) south of
Interstate 565. Unit 1 encompasses Moss, Horton, and Thorsen springs.
This includes a total of 580.7 hectares (1,435 acres).
Almost 5.9 km (3.7 mi), or 63 percent of the stream reach, and 237
ha (586 ac) (41 percent) of the area are privately owned. The remaining
3.5 km (2.21 mi), or 37 percent of the stream reach, and 344 ha (849
ac) of the area (59 percent) are owned by the Service as part of the
Wheeler National Wildlife Refuge.
Unit 1 is currently occupied and contains the only known
metapopulation of the species. Unit 1 contains all elements of the
essential physical or biological features of the
[[Page 60197]]
species needed for its eventual recovery. This unit provides habitat
for the spring pygmy sunfish with adequate numbers of small pools,
spring runs (PCE 1), and emergent vegetation (PCE 4). These geomorphic
structures provide substrate for aquatic vegetation that is used by the
species for spawning, foraging, and other processes of the species
natural history (PCE 4) along with good water quality (PCE 2),
quantity, and flow (PCE 3), which supports the normal life stages and
behavior of the spring pygmy sunfish, and the species' prey sources
(PCE 4).
Threats to the spring pygmy sunfish and its habitat in Unit 1 that
may require special management of the physical and biological features
include the potential of increased agriculture, urbanization, and
industrialization activities (such as channel modification for flood
control, construction of impoundments, and water extraction) that could
result in increased stormwater runoff and erosion; significant changes
in the existing spring flow regime due to water extraction, inadequate
stormwater management, and water diversion; significant alteration of
water quality and quantity; and significant changes in streambed
material composition and quality as a result of construction projects
and maintenance activities, resulting in the destruction of emergent
and aquatic vegetation; off-road vehicle use; sewer, gas, and water
easements; bridge and road construction and maintenance; culvert and
pipe installation; and other watershed and floodplain disturbances that
release sediments or nutrients into the water.
There are three paved road crossings over this unit, one unpaved
dirt road, and one railroad. Spring pygmy sunfish movement might be
limited due to changes in flow regime and habitat including changes in
emergent vegetation, water quality, and water quantity, and due to
stochastic events such as drought. Populations of spring pygmy sunfish
are small and isolated from one another due to the non-homogeneous
habitats within Unit 1.
Unit 2: Pryor Spring/Pryor Branch, Limestone County, Alabama
Unit 2 includes 3.4 km (2.1 mi) of Pryor Spring and Pryor Branch
from the spring head, about 3.7 mi (5.9 km) south of Tanner, Alabama,
and just east of Highway 31, downstream to the bridge where it
intersects with Harris Station/Thomas L. Hammons Road. This also
includes a total of 73.6 ha (182 ac) in area.
Almost 3.1 km (1.95 mi), or 93 percent of the stream reach, and
65.6 ha (162 ac) of the land area (89 percent) are federally owned by
the Tennessee Valley Authority and managed by the State as the Swan
Creek Wildlife Management Area. The remaining 0.2 km (0.15 mi) of
stream reach (7 percent) and 8.1 ha (20 ac) (11 percent) of the land
area are privately owned.
Unit 2 is currently unoccupied but is a historical location for the
spring pygmy sunfish, and is essential for its conservation and
eventual recovery. The Pryor Spring/Branch system contains scattered
spring-influenced wetlands of aquatic and emergent vegetation in spring
pools, spring runs, and shallow water wetlands on the margins of the
small tributaries. Populations of spring pygmy sunfish were
historically noted as small and isolated within specific habitat sites
of Pryor Spring/Branch. An attempt to reintroduce the species back into
Pryor Springs (east of Highway 31) was unsuccessful in the 1980s.
A portion of the spring head has been mechanically deepened and the
banks steepened in order to promote water extraction for cropland
irrigation. Nevertheless, there is a significant seasonal flow of
groundwater entering the system throughout the year from the springhead
(portions of PCEs 1, 2, and 3). Adequate aquatic vegetation (PCE 4)
occurs in areas throughout this spring system, providing potential
habitat for the normal life stages and behavior of the spring pygmy
sunfish and the species' prey sources. Water flow (PCE 3) from the main
springhead, along with other unidentified springs and seeps within the
system, provides sufficient water quantity to allow for connectivity
between spawning, rearing, foraging, and resting sites, promoting gene
flow throughout the spring system. While the existence of PCEs is not
necessary for the designation of unoccupied habitat, their presence in
Unit 2 only reinforces the value of the Pryor Spring/Branch to the
conservation of the spring pygmy sunfish.
As this species is only known from a single population, it is
important that additional populations be established to buffer against
extirpation of the one known site from stochastic events, such as
drought. Therefore, we have determined this unit is essential for the
conservation of the species because it provides potential for the
establishment of an additional population of the spring pygmy sunfish,
thereby reducing this species' risk of extinction, and would contribute
to the species' eventual recovery.
In summary, we propose designating critical habitat in two areas,
one which is occupied and which contains sufficient primary constituent
elements to support the life-history functions essential to the
conservation of the species and that require special management, and
one which is currently unoccupied, which historically supported the
species and has been determined to be essential for the conservation of
the species.
As discussed in the Critical Habitat section above, we recognize
that designation of critical habitat may not include all habitat areas
that we may eventually determine are necessary for the recovery of the
species and that, for this reason, a critical habitat designation does
not signal that habitat outside the designated area is unimportant or
may not promote the recovery of the species.
Effects of Critical Habitat Designation
Section 7 Consultation
Section 7(a)(2) of the Act requires Federal agencies, including the
Service, to ensure that any action they fund, authorize, or carry out
is not likely to jeopardize the continued existence of any endangered
species or threatened species or result in the destruction or adverse
modification of designated critical habitat of such species. In
addition, section 7(a)(4) of the Act requires Federal agencies to
confer with the Service on any agency action which is likely to
jeopardize the continued existence of any species proposed to be listed
under the Act or result in the destruction or adverse modification of
proposed critical habitat.
Decisions by the 5th and 9th Circuit Courts of Appeals have
invalidated our regulatory definition of ``destruction or adverse
modification'' (50 CFR 402.02) (see Gifford Pinchot Task Force v. U.S.
Fish and Wildlife Service, 378 F. 3d 1059 (9th Cir. 2004) and Sierra
Club v. U.S. Fish and Wildlife Service et al., 245 F.3d 434, 442 (5th
Cir. 2001)), and we do not rely on this regulatory definition when
analyzing whether an action is likely to destroy or adversely modify
critical habitat. Under the provisions of the Act, we determine
destruction or adverse modification on the basis of whether, with
implementation of the proposed Federal action, the affected critical
habitat would continue to serve its intended conservation role for the
species.
If a Federal action may affect a listed species or its critical
habitat, the responsible Federal agency (action agency) must enter into
consultation with us. Examples of actions that are subject to the
section 7 consultation process are actions on State, tribal, local, or
private lands that require a Federal permit (such as a permit from the
U.S. Army Corps of Engineers under
[[Page 60198]]
section 404 of the Clean Water Act (33 U.S.C. 1251 et seq.) or a permit
from the Service under section 10 of the Act) or that involve some
other Federal action (such as funding from the Federal Highway
Administration, Federal Aviation Administration, or the Federal
Emergency Management Agency). Federal actions not affecting listed
species or critical habitat, and actions on State, tribal, local, or
private lands that are not federally funded or authorized do not
require section 7 consultation.
As a result of section 7 consultation, we document compliance with
the requirements of section 7(a)(2) through our issuance of:
(1) A concurrence letter for Federal actions that may affect, but
are not likely to adversely affect, listed species or critical habitat;
or
(2) A biological opinion for Federal actions that may affect, or
are likely to adversely affect, listed species or critical habitat.
When we issue a biological opinion concluding that a project is
likely to jeopardize the continued existence of a listed species and/or
destroy or adversely modify critical habitat, we provide reasonable and
prudent alternatives to the project, if any are identifiable, that
would avoid the likelihood of jeopardy and/or destruction or adverse
modification of critical habitat. We define ``reasonable and prudent
alternatives'' (at 50 CFR 402.02) as alternative actions identified
during consultation that:
(1) Can be implemented in a manner consistent with the intended
purpose of the action;
(2) Can be implemented consistent with the scope of the Federal
agency's legal authority and jurisdiction;
(3) Are economically and technologically feasible; and
(4) Would, in the Director's opinion, avoid the likelihood of
jeopardizing the continued existence of the listed species and/or avoid
the likelihood of destroying or adversely modifying critical habitat.
Reasonable and prudent alternatives can vary from slight project
modifications to extensive redesign or relocation of the project. Costs
associated with implementing a reasonable and prudent alternative are
similarly variable.
Regulations at 50 CFR 402.16 require Federal agencies to reinitiate
consultation on previously reviewed actions in instances where we have
listed a new species or subsequently designated critical habitat that
may be affected and the Federal agency has retained discretionary
involvement or control over the action (or the agency's discretionary
involvement or control is authorized by law). Consequently, Federal
agencies sometimes may need to request reinitiating of consultation
with us on actions for which formal consultation has been completed, if
those actions with discretionary involvement or control may affect
subsequently listed species or designated critical habitat.
Application of the ``Adverse Modification'' Standard
The key factor related to the adverse modification determination is
whether, with implementation of the proposed Federal action, the
affected critical habitat would continue to serve its intended
conservation role for the species. Activities that may destroy or
adversely modify critical habitat are those that alter the physical or
biological features to an extent that appreciably reduces the
conservation value of critical habitat for the spring pygmy sunfish. As
discussed above, the role of critical habitat is to support life-
history needs of the species and provide for the conservation of the
species.
Section 4(b)(8) of the Act requires us to briefly evaluate and
describe, in any proposed or final regulation that designates critical
habitat, activities involving a Federal action that may destroy or
adversely modify such habitat, or that may be affected by such
designation. Activities that may affect critical habitat, when carried
out, funded, or authorized by a federal agency, should result in
consultation for the spring pygmy sunfish. These activities include,
but are not limited to:
(1) Actions that would alter the geomorphology of the spring system
and its associated habitats. Such activities could include, but are not
limited to, instream excavation or dredging, impoundment,
channelization, and discharge of fill materials. These activities could
cause aggradation or degradation of the channel bed elevation or
significant bank erosion and result in entrainment or burial of this
species, destruction of the associated aquatic vegetation, and other
direct or cumulative adverse effects to this species and its life
cycle.
(2) Actions that would significantly alter the existing flow
regime, related aquifer, and recharge areas. Such activities could
include, but are not limited to, impoundments, water diversion, channel
constriction or widening, placement of pipes, culverts or bridges, and
groundwater and surface water extraction. These activities could
eliminate or reduce the habitat necessary for growth, reproduction, and
connectivity of spring pygmy sunfish populations.
(3) Actions that would significantly alter water chemistry or water
quality (for example, temperature, pH, contaminants, and excess
nutrients). Such activities could include, but are not limited to, the
unsustainable use or release of chemicals, such as pesticides and
fertilizers and biological pollutants, into surface water or
groundwater. These activities could alter water conditions that are
beyond the tolerances of this species and result in direct or
cumulative adverse effects to the species and its life cycle.
(4) Actions that would significantly alter streambed material
composition and quality by increasing sediment deposition or
filamentous algal growth. Such activities could include, but are not
limited to, construction and maintenance projects of subdivisions,
roads, bridges, stormwater systems and utility easements; unsustainable
livestock grazing and timber harvest; off-road vehicle use; and other
watershed and floodplain disturbances that release sediments or
nutrients into the water through stormwater runoff. These activities
could eliminate or reduce habitats necessary for the growth and
reproduction of the spring pygmy sunfish by causing excessive
sedimentation and a decrease in water quality for the species and
associated vegetation and prey base by nitrification, leading to
excessive filamentous algal growth, turbidity, and an increase in water
temperatures.
Exemptions
Application of Section 4(a)(3) of the Act
The Sikes Act Improvement Act of 1997 (Sikes Act) (16 U.S.C. 670a)
required each military installation that includes land and water
suitable for the conservation and management of natural resources to
complete an integrated natural resources management plan (INRMP) by
November 17, 2001. An INRMP integrates implementation of the military
mission of the installation with stewardship of the natural resources
found on the base. Each INRMP includes:
(1) An assessment of the ecological needs on the installation,
including the need to provide for the conservation of listed species;
(2) A statement of goals and priorities;
(3) A detailed description of management actions to be implemented
to provide for these ecological needs; and
(4) A monitoring and adaptive management plan.
[[Page 60199]]
Among other things, each INRMP must, to the extent appropriate and
applicable, provide for fish and wildlife management; fish and wildlife
habitat enhancement or modification; wetland protection, enhancement,
and restoration where necessary to support fish and wildlife; and
enforcement of applicable natural resource laws.
The National Defense Authorization Act for Fiscal Year 2004 (Pub.
L. 108-136) amended the Act to limit areas eligible for designation as
critical habitat. Specifically, section 4(a)(3)(B)(i) of the Act (16
U.S.C. 1533(a)(3)(B)(i)) now provides: ``The Secretary shall not
designate as critical habitat any lands or other geographical areas
owned or controlled by the Department of Defense, or designated for its
use, that are subject to an integrated natural resources management
plan prepared under section 101 of the Sikes Act (16 U.S.C. 670a), if
the Secretary determines in writing that such plan provides a benefit
to the species for which critical habitat is proposed for
designation.''
There are no Department of Defense lands with a completed INRMP
within the proposed critical habitat designation. Therefore, we are not
exempting any lands owned or managed by the DOD from this designation
of critical habitat for the spring pygmy sunfish under section
4(a)(3)(B)(i) of the Act.
Exclusions
Application of Section 4(b)(2) of the Act
Section 4(b)(2) of the Act states that the Secretary must designate
or make revisions to critical habitat on the basis of the best
available scientific data after taking into consideration the economic
impact, national security impact, and any other relevant impact of
specifying any particular area as critical habitat. The Secretary may
exclude an area from critical habitat if he determines that the
benefits of such exclusion outweigh the benefits of specifying such
area as part of the critical habitat, unless he determines, based on
the best scientific data available, that the failure to designate such
area as critical habitat will result in the extinction of the species.
In making that determination, the statute on its face, as well as the
legislative history, are clear that the Secretary has broad discretion
regarding which factor(s) to use and how much weight to give to any
factor.
Under section 4(b)(2) of the Act, we may exclude an area from
designated critical habitat based on economic impacts, impacts on
national security, and any other relevant impacts. In considering
whether to exclude a particular area from the designation, we identify
the benefits of including the area in the designation, identify the
benefits of excluding the area from the designation, and evaluate
whether the benefits of exclusion outweigh the benefits of inclusion.
If the analysis indicates that the benefits of exclusion outweigh the
benefits of inclusion, the Secretary may exercise his discretion to
exclude the area only if such exclusion would not result in the
extinction of the species.
Economic Impacts
Under section 4(b)(2) of the Act, we consider the economic impacts
of specifying any particular area as critical habitat. In order to
consider economic impacts, we are preparing an analysis of the economic
impacts of the proposed critical habitat designation and related
factors.
During the development of our proposed rule, we have identified
certain sectors and activities that may potentially be affected by a
designation of critical habitat for spring pygmy sunfish. These sectors
include commercial development and urbanization, along with the
accompanying infrastructure associated with such projects such as road,
storm water drainage, bridge, and culvert construction and maintenance.
As part of our economic analysis, we are collecting information and
initiating our analysis to determine (1) which of these sectors or
activities are or involve small business entities and (2) to what
extent the effects are related to the spring pygmy sunfish being listed
as a threatened species under the Act (baseline effects) or are
attributable to the designation of critical habitat (incremental
effects). We believe that the potential incremental effects resulting
from a designation would be small. However, one purpose of the economic
analysis will be to determine if this is the case. Accordingly, we are
requesting any specific economic information related to small business
entities that may be affected by this designation and how the
designation may impact small businesses.
We will announce the availability of the draft economic analysis as
soon as it is completed. At that time, copies of the draft economic
analysis will be available for downloading from the Internet at https://www.regulations.gov, or by contacting the Mississippi Ecological
Services Field Office (see FOR FURTHER INFORMATION CONTACT section).
During the development of a final designation, we will consider
economic impacts, public comments, and other new information, and areas
may be excluded from the final critical habitat designation under
section 4(b)(2) of the Act and our implementing regulations at 50 CFR
424.19.
National Security Impacts
Under section 4(b)(2) of the Act, we consider whether there are
lands owned or managed by the Department of Defense (DOD) where a
national security impact might exist. In preparing this proposal, we
have determined that none of the lands within the proposed designation
of critical habitat for the spring pygmy sunfish are lands owned or
managed by the DOD, and, therefore, we anticipate no impact on national
security. Consequently, the Secretary does not intend to exercise his
discretion to exclude any areas from the final designation based on
impacts on national security.
Other Relevant Impacts
Under section 4(b)(2) of the Act, we consider any other relevant
impacts, in addition to economic and national security impacts. We
consider a number of factors, including whether the landowners have
developed any HCPs or other management plans for the area, or whether
there are conservation partnerships that would be encouraged by
designation of, or exclusion from, critical habitat. In addition, we
look at any tribal issues, and consider the government-to-government
relationship of the United States with tribal entities. We also
consider any social impacts that might occur because of the
designation.
In preparing this proposal, we have determined that there are
currently no HCPs for the spring pygmy sunfish, and the proposed
designation does not include any tribal lands or trust resources. The
CCAA between the Service, the Land Trust, and Belle Mina Farms, Ltd.,
covers the upper 24 percent of the Beaverdam Spring/Creek complex (Unit
1). This management plan contains numerous conservation measures
protective of the spring pygmy sunfish. It provides a measure of
protection for the species in the upper portion of the only currently
occupied site. However, although this CCAA reduces some of threats and
is one of the reasons the species is proposed for listing as threatened
rather than endangered, the magnitude of this threat reduction is not
at the level to ameliorate threats to this species throughout its range
(see Finding section, above, for additional discussion). Thus, the CCAA
alone is not sufficient to preclude the need to list the species as
threatened. We also anticipate no impact on tribal lands, partnerships,
or HCPs from this
[[Page 60200]]
proposed critical habitat designation. Accordingly, at this time the
Secretary does not propose to exert his discretion to exclude any areas
from the final designation based on other relevant impacts. However, we
recognize that exclusion from critical habitat of the area covered by
the CCAA may encourage partnerships with other landowners in the spring
complex that would help address additional threats under Factors A and
E. Therefore, as indicated in the Information Requested section, we are
requesting information on whether the benefits of the exclusion of
lands covered by the CCAA may outweigh the benefits of inclusion under
section 4(b)(2) of the Act, and the Secretary may reconsider exclusion
in the final rule.
Peer Review
In accordance with our joint policy on peer review published in the
Federal Register on July 1, 1994 (59 FR 34270), we will seek the expert
opinions of at least three appropriate and independent specialists
regarding this proposed rule. The purpose of peer review is to ensure
that our determination of status for this species and critical habitat
designation is based on scientifically sound data, assumptions, and
analyses. We will invite these peer reviewers to comment during this
public comment period on our specific assumptions and conclusions in
this proposed listing determination and designation of critical
habitat.
We will consider all comments and information we receive during
this comment period on this proposed rule during our preparation of a
final determination. Accordingly, the final decision may differ from
this proposal.
Public Hearings
The Act provides for one or more public hearings on this proposal,
if requested. Requests must be received within 45 days after the date
of publication of this proposed rule in the Federal Register. Such
requests must be sent to the address shown in the FOR FURTHER
INFORMATION CONTACT section. We will schedule public hearings on this
proposal, if any are requested, and announce the dates, times, and
places of those hearings, as well as how to obtain reasonable
accommodations, in the Federal Register and local newspapers at least
15 days before the hearing.
Required Determinations
Regulatory Planning and Review--Executive Order 12866 and 13563
Executive Order 12866 provides that the Office of Information and
Regulatory Affairs (OIRA) will review all significant rules. The Office
of Information and Regulatory Affairs has determined that this rule is
not significant.
Executive Order 13563 reaffirms the principles of E.O. 12866 while
calling for improvements in the nation's regulatory system to promote
predictability, to reduce uncertainty, and to use the best, most
innovative, and least burdensome tools for achieving regulatory ends.
The executive order directs agencies to consider regulatory approaches
that reduce burdens and maintain flexibility and freedom of choice for
the public where these approaches are relevant, feasible, and
consistent with regulatory objectives. E.O. 13563 emphasizes further
that regulations must be based on the best available science and that
the rulemaking process must allow for public participation and an open
exchange of ideas. We have developed this rule in a manner consistent
with these requirements.
Regulatory Flexibility Act (5 U.S.C. 601 et seq.)
Under the Regulatory Flexibility Act (RFA; 5 U.S.C. 601 et seq.) as
amended by the Small Business Regulatory Enforcement Fairness Act
(SBREFA) of 1996 (5 U.S.C. 801 et seq.), whenever an agency must
publish a notice of rulemaking for any proposed or final rule, it must
prepare and make available for public comment a regulatory flexibility
analysis that describes the effects of the rule on small entities
(small businesses, small organizations, and small government
jurisdictions). However, no regulatory flexibility analysis is required
if the head of the agency certifies the rule will not have a
significant economic impact on a substantial number of small entities.
The SBREFA amended the RFA to require Federal agencies to provide a
certification statement of the factual basis for certifying that the
rule will not have a significant economic impact on a substantial
number of small entities.
According to the Small Business Administration, small entities
include small organizations such as independent nonprofit
organizations; small governmental jurisdictions, including school
boards and city and town governments that serve fewer than 50,000
residents; and small businesses (13 CFR 121.201). Small businesses
include such businesses as manufacturing and mining concerns with fewer
than 500 employees, wholesale trade entities with fewer than 100
employees, retail and service businesses with less than $5 million in
annual sales, general and heavy construction businesses with less than
$27.5 million in annual business, special trade contractors doing less
than $11.5 million in annual business, and forestry and logging
operations with fewer than 500 employees and annual business less than
$7 million. To determine whether small entities may be affected, we
will consider the types of activities that might trigger regulatory
impacts under this designation as well as types of project
modifications that may result. In general, the term ``significant
economic impact'' is meant to apply to a typical small business firm's
business operations.
Importantly, the incremental impacts of a rule must be both
significant and substantial to prevent certification of the rule under
the RFA and to require the preparation of an initial regulatory
flexibility analysis. If a substantial number of small entities are
affected by the proposed critical habitat designation, but the per-
entity economic impact is not significant, the Service may certify.
Likewise, if the per-entity economic impact is likely to be
significant, but the number of affected entities is not substantial,
the Service may also certify.
Under the RFA, as amended, and following recent court decisions,
Federal agencies are only required to evaluate the potential
incremental impacts of rulemaking on those entities directly regulated
by the rulemaking itself, and not the potential impacts to indirectly
affected entities. The regulatory mechanism through which critical
habitat protections are realized is section 7 of the Act, which
requires Federal agencies, in consultation with the Service, to ensure
that any action authorized, funded, or carried by the Agency is not
likely to adversely modify critical habitat. Therefore, only Federal
action agencies are directly subject to the specific regulatory
requirement (avoiding destruction and adverse modification) imposed by
critical habitat designation. Under these circumstances, it is our
position that only Federal action agencies will be directly regulated
by this designation. Therefore, because Federal agencies are not small
entities, the Service may certify that the proposed critical habitat
rule will not have a significant economic impact on a substantial
number of small entities.
We acknowledge, however, that in some cases, third-party proponents
of the action subject to permitting or funding may participate in a
section 7 consultation, and thus may be indirectly affected. We believe
it is good policy to assess these impacts if we have sufficient data
before us to complete the
[[Page 60201]]
necessary analysis, whether or not this analysis is strictly required
by the RFA. While this regulation does not directly regulate these
entities, in our draft economic analysis we will conduct a brief
evaluation of the potential number of third parties participating in
consultations on an annual basis in order to ensure a more complete
examination of the incremental effects of this proposed rule in the
context of the RFA.
In conclusion, we believe that, based on our interpretation of
directly regulated entities under the RFA and relevant case law, this
designation of critical habitat will only directly regulate Federal
agencies, which are not by definition small business entities. As such,
we certify that, if promulgated, this designation of critical habitat
would not have a significant economic impact on a substantial number of
small business entities. Therefore, an initial regulatory flexibility
analysis is not required. However, although not necessarily required by
the RFA, in our draft economic analysis for this proposal we will
consider and evaluate the potential effects to third parties that may
be involved with consultations with Federal action agencies related to
this action.
Energy Supply, Distribution, or Use--Executive Order 13211
Executive Order 13211 requires agencies to prepare Statements of
Energy Effects when undertaking certain actions. We do not expect the
designation of critical habitat for the spring pygmy sunfish to
significantly affect energy supplies, distribution, or use. The
proposed critical habitat units are remote from energy supply,
distribution, or use activities. We are not aware of any oil and gas
exploration or development within the region to date, and the area has
not been identified as a shale play for oil and gas extraction
(hydraulic fracturing) (Satterfield 2011, p. 3) Therefore, this action
is not a significant energy action, and no Statement of Energy Effects
is required. However, we will further evaluate this issue as we conduct
our economic analysis, and review and revise this assessment as
warranted.
Unfunded Mandates Reform Act (2 U.S.C. 1501 et seq.)
In accordance with the Unfunded Mandates Reform Act (2 U.S.C. 1501
et seq.), we make the following findings:
(1) This rule would not produce a Federal mandate. In general, a
Federal mandate is a provision in legislation, statute, or regulation
that would impose an enforceable duty upon State, local, tribal
governments, or the private sector and includes both ``Federal
intergovernmental mandates'' and ``Federal private sector mandates.''
These terms are defined in 2 U.S.C. 658(5)-(7). ``Federal
intergovernmental mandate'' includes a regulation that ``would impose
an enforceable duty upon State, local, or tribal governments'' with two
exceptions. It excludes ``a condition of Federal assistance.'' It also
excludes ``a duty arising from participation in a voluntary Federal
program,'' unless the regulation ``relates to a then-existing Federal
program under which $500,000,000 or more is provided annually to State,
local, and tribal governments under entitlement authority,'' if the
provision would ``increase the stringency of conditions of assistance''
or ``place caps upon, or otherwise decrease, the Federal Government's
responsibility to provide funding,'' and the State, local, or tribal
governments ``lack authority'' to adjust accordingly. At the time of
enactment, these entitlement programs were: Medicaid; Aid to Families
with Dependent Children work programs; Child Nutrition; Food Stamps;
Social Services Block Grants; Vocational Rehabilitation State Grants;
Foster Care, Adoption Assistance, and Independent Living; Family
Support Welfare Services; and Child Support Enforcement. ``Federal
private sector mandate'' includes a regulation that ``would impose an
enforceable duty upon the private sector, except (i) a condition of
Federal assistance or (ii) a duty arising from participation in a
voluntary Federal program.''
The designation of critical habitat does not impose a legally
binding duty on non-Federal Government entities or private parties.
Under the Act, the only regulatory effect is that Federal agencies must
ensure that their actions do not destroy or adversely modify critical
habitat under section 7. While non-Federal entities that receive
Federal funding, assistance, or permits, or that otherwise require
approval or authorization from a Federal agency for an action, may be
indirectly impacted by the designation of critical habitat, the legally
binding duty to avoid destruction or adverse modification of critical
habitat rests squarely on the Federal agency. Furthermore, to the
extent that non-Federal entities are indirectly impacted because they
receive Federal assistance or participate in a voluntary Federal aid
program, the Unfunded Mandates Reform Act would not apply, and critical
habitat would not shift the costs of the large entitlement programs
listed above on to State governments.
(2) We do not believe that this rule would significantly or
uniquely affect small governments because it will not produce a Federal
mandate of $100 million or greater in any year, that is, it is not a
``significant regulatory action'' under the Unfunded Mandates Reform
Act. The designation of critical habitat imposes no obligations on
State or local governments. In addition, adjacent upland properties are
owned by private entities or State partners. Therefore, a Small
Government Agency Plan is not required. However, we will further
evaluate this issue as we conduct our economic analysis and revise this
assessment if appropriate.
Takings--Executive Order 12630
In accordance with Executive Order 12630 (Government Actions and
Interference with Constitutionally Protected Private Property Rights),
we have analyzed the potential takings implications of designating
critical habitat for spring pygmy sunfish in a takings implications
assessment. Critical habitat designation does not affect landowner
actions that do not require Federal funding or permits, nor does it
preclude development of habitat conservation programs or issuance of
incidental take permits to permit actions that do require Federal
funding or permits to go forward. The takings implications assessment
concludes that this proposed designation of critical habitat for the
spring pygmy sunfish does not pose significant takings implications for
lands within or affected by the designation.
Federalism--Executive Order 13132
In accordance with Executive Order 13132 (Federalism), the proposed
rule does not have significant Federalism effects. A federalism impact
summary statement is not required. In keeping with Department of the
Interior and Department of Commerce policy, we requested information
from, and coordinated development of, this proposed critical habitat
designation with appropriate State resource agencies in Alabama. The
designation of critical habitat in areas currently occupied by the
spring pygmy sunfish (i.e., Unit 1: Beaverdam Spring/Creek) would
impose few if any additional restrictions to those put in place through
listing, and, therefore, has would have little incremental impact on
State and local governments and their activities. There may be a slight
impact on State and local government and their activities if critical
habitat is designated in Unit 2: Pryor Spring/Pryor Branch, because
this
[[Page 60202]]
is unoccupied critical habitat. However, critical habitat designation
may have some benefit for these governments because the areas that
contain the physical or biological features essential to the
conservation of the species are more clearly defined, and the elements
of the features of the habitat necessary to the conservation of the
species are specifically identified. This information does not alter
where and what federally sponsored activities may occur. However, it
may assist local governments in long-range planning (rather than having
them wait for case-by-case section 7 consultations to occur).
Where State and local governments require approval or authorization
from a Federal agency for actions that may affect critical habitat,
consultation under section 7(a)(2) would be required. While non-Federal
entities that receive Federal funding, assistance, or permits, or that
otherwise require approval or authorization from a Federal agency for
an action, may be indirectly impacted by the designation of critical
habitat, the legally binding duty to avoid destruction or adverse
modification of critical habitat rests squarely on the Federal agency.
Civil Justice Reform--Executive Order 12988
In accordance with Executive Order 12988 (Civil Justice Reform),
the Office of the Solicitor has determined that the rule does not
unduly burden the judicial system and that it meets the requirements of
sections 3(a) and 3(b)(2) of the Order. We have proposed designating
critical habitat in accordance with the provisions of the Act. This
proposed rule uses standard property descriptions and identifies the
elements of physical or biological features essential to the
conservation of the spring pygmy sunfish within the designated areas to
assist the public in understanding the habitat needs of the species.
Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.)
This rule does not contain any new collections of information that
require approval by OMB under the Paperwork Reduction Act of 1995 (44
U.S.C. 3501 et seq.). This rule will not impose recordkeeping or
reporting requirements on State or local governments, individuals,
businesses, or organizations. An agency may not conduct or sponsor, and
a person is not required to respond to, a collection of information
unless it displays a currently valid OMB control number.
National Environmental Policy Act (42 U.S.C. 4321 et seq.)
We have determined that environmental assessments and environmental
impact statements, as defined under the authority of the National
Environmental Policy Act of 1969 (NEPA), need not be prepared in
connection with listing a species as endangered or threatened under the
Act. We published a notice outlining our reasons for this determination
in the Federal Register on October 25, 1983 (48 FR 49244).
It is also our position that, outside the jurisdiction of the U.S.
Court of Appeals for the Tenth Circuit, we do not need to prepare
environmental analyses under NEPA in connection with designating
critical habitat under the Act. We published a notice outlining our
reasons for this determination in the Federal Register on October 25,
1983 (48 FR 49244). This position was upheld by the U.S. Court of
Appeals for the Ninth Circuit (Douglas County v. Babbitt, 48 F.3d 1495
(9th Cir. 1995), cert. denied 516 U.S. 1042 (1996)).
Clarity of the Rule
We are required by Executive Orders 12866 and 12988 and by the
Presidential Memorandum of June 1, 1998, to write all rules in plain
language. This means that each rule we publish must:
(1) Be logically organized;
(2) Use the active voice to address readers directly;
(3) Use clear language rather than jargon;
(4) Be divided into short sections and sentences; and
(5) Use lists and tables wherever possible.
If you feel that we have not met these requirements, send us
comments by one of the methods listed in the ADDRESSES section. To
better help us revise the rule, your comments should be as specific as
possible. For example, you should tell us the numbers of the sections
or paragraphs that are unclearly written, which sections or sentences
are too long, the sections where you feel lists or tables would be
useful, etc.
Government-to-Government Relationship With Tribes
In accordance with the President's memorandum of April 29, 1994,
(Government-to-Government Relations with Native American Tribal
Governments; 59 FR 22951), Executive Order 13175 (Consultation and
Coordination With Indian Tribal Governments), and the Department of
Interior's manual at 512 DM 2, we readily acknowledge our
responsibility to communicate meaningfully with recognized Federal
Tribes on a government-to-government basis. In accordance with
Secretarial Order 3206 of June 5, 1997 (American Indian Tribal Rights,
Federal-Tribal Trust Responsibilities, and the Endangered Species Act),
we readily acknowledge our responsibilities to work directly with
tribes in developing programs for healthy ecosystems, to acknowledge
that tribal lands are not subject to the same controls as Federal
public lands, to remain sensitive to Indian culture, and to make
information available to tribes.
The State of Alabama does contain tribal lands, however, none occur
within the proposed critical habitat designation. Therefore, we are not
proposing to designate critical habitat for spring pygmy sunfish on
tribal lands.
References Cited
A complete list of all references cited in this rulemaking is
available on the Internet at https://www.regulations.gov and upon
request from the Deputy Field Supervisor, Mississippi Ecological
Services Field Office (see FOR FURTHER INFORMATION CONTACT).
Authors
The primary authors of this package are the staff members of the
Mississippi Ecological Services Field Office (see FURTHER INFORMATION
CONTACT).
List of Subjects in 50 CFR Part 17
Endangered and threatened species, Exports, Imports, Reporting and
recordkeeping requirements, Transportation.
Proposed Regulation Promulgation
Accordingly, we propose to amend part 17, subchapter B of chapter
I, title 50 of the Code of Federal Regulations, as set forth below:
PART 17--[AMENDED]
1. The authority citation for part 17 continues to read as follows:
Authority: 16 U.S.C. 1361-1407; 16 U.S.C. 1531-1544; 16 U.S.C.
4201-4245; Pub. L. 99-625, 100 Stat. 3500; unless otherwise noted.
2. Amend Sec. 17.11(h) by adding an entry for ``Sunfish, spring
pygmy'' to the List of Endangered and Threatened Wildlife in
alphabetical order under FISHES to read as follows:
Sec. 17.11 Endangered and threatened wildlife.
* * * * *
(h) * * *
[[Page 60203]]
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Species Vertebrate
-------------------------------------------------------- population where Critical Special
Historic range endangered or Status When listed habitat rules
Common name Scientific name threatened
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* * * * * * *
FISHES .................... ................... ................... .............. ........... ........... ...........
* * * * * * *
Sunfish, spring pygmy............ Elassoma alabamae... U.S.A. (AL)........ Entire............. T ........... 17.95(e) NA
* * * * * * *
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2. In Sec. 17.95, amend paragraph (e) by adding an entry for
``Spring Pygmy Sunfish (Elassoma alabamae),'' in the same alphabetical
order that the species appears in the table at Sec. 17.11(h), to read
as follows:
Sec. 17.95 Critical habitat--fish and wildlife.
* * * * *
(e) Fishes.
* * * * *
Spring Pygmy Sunfish (Elassoma alabamae)
(1) Critical habitat units are depicted for Limestone County,
Alabama, on the maps below.
(2) Within these areas, the primary constituent elements of the
physical and biological features essential to the conservation of
spring pygmy sunfish are:
(i) Spring system. Springs and connecting spring-fed reaches and
wetlands that are geomorphically stable and relatively low-gradient.
This includes headwater springs with spring heads, spring runs, and
spring pools that filter into shallow, vegetated wetlands.
(ii) Water quality. Yearly averages of water quality with optimal
temperatures of 57.2 to 68[emsp14][deg]F (14 to 20 [deg]C) and not
exceeding 80[emsp14][deg]F (26.7 [deg]C); pH of 6.0 to 7.7; dissolved
oxygen of 6.0 parts per million (ppm) or greater; specific conductivity
no greater than 300 micro Siemens per centimeter at 80[emsp14][deg]F
(26.7 [deg]C); low concentrations of free or suspended solids with
turbidity measuring less than 15 Nephelometric Turbidity Units (NTU)
and 20 milligrams per liter (mg/l) total suspended solids (TSS).
(iii) Hydrology. A hydrologic flow regime (magnitude, frequency,
duration, and seasonality of discharge over time) necessary to maintain
spring habitats. The instream flow from groundwater sources (springs
and seeps) maintains an adequate velocity and a continuous daily
discharge from the aquifer that allows for connectivity between
habitats. Instream flow is stable and does not vary during water
extraction, and the aquifer recharge maintains adequate levels to
supply water flow to the spring head. The flow regime does not
significantly change during storm events.
(iv) Vegetation and Prey Base. Aquatic, emergent and semi-emergent
vegetation along the margins of spring runs and submergent vegetation
that is adequate for breeding, reproducing, and rearing young;
providing cover and shelter from predators; and supporting the prey
base of aquatic macroinvertebrates eaten by spring pygmy sunfish.
Important species of submergent and emergent vegetation include clumps
and stands of Sparganium spp. (bur reed), Ceratophyllum spp.
(coontail), Nasturtium officinale (watercress), Juncus spp. (rush),
Carex spp. (sedges), Nuphar luteum (yellow pond lily), Myriophyllum
spp. (parrot feather), Utricularia spp. (bladderwort), Polygonum spp.
(smartweed), Lythrum salicaria (purple loosestrife), and Callitriche
spp. (water starwort).
(3) Critical habitat does not include manmade structures (such as
buildings, aqueducts, runways, roads, and other paved areas) and the
land on which they are located existing within the legal boundaries on
the effective date of this rule.
(4) Critical habitat unit maps. Data layers defining the map unit
were created by delineating habitats that contained at least one or
more of the primary constituent elements defined in paragraph (2) of
this entry, over a base of USGS digital topographic map quadrangle
(Greenbrier and Mason Ridge) and a USDA 2007 digital ortho-photo
mosaic, in addition to the National Wetland Inventory Maps. The
resulting critical habitat unit was then mapped using State Plane North
American Datum (NAD) 83 coordinates. The maps in this entry, as
modified by any accompanying regulatory text, establish the boundaries
of the critical habitat designation. The coordinates or plot points or
both on which each map is based are available to the public at the
Service's internet site, https://www.fws.gov/mississippiES/; at https://www.regulations.gov at Docket No. FWS-R4-ES-2012-0068; and at the field
office responsible for this designation. You may obtain field office
location information by contacting one of the Service regional offices,
the addresses of which are listed at 50 CFR 2.2.
(5) Index map of critical habitat for the spring pygmy sunfish
follows:
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[[Page 60204]]
[GRAPHIC] [TIFF OMITTED] TP02OC12.000
(6) Unit 1: Beaverdam Spring/Creek, Limestone County, Alabama.
(i) General Description: Unit 1 includes a total of 9.5 km (5.9 mi)
of Beaverdam Spring/Creek, northeast of Greenbrier, Alabama, from the
spring head, 5.6 km (3.5 mi) north of Interstate 565 (Lat. 34.703162,
Long.-86.82899) to 3.9 km (2.4 mi) south of Interstate 565 (Lat.
34.625896, Long. -86.82505). Unit 1 encompasses Moss, Horton, and
Thorsen springs. This includes a total of 580.7 hectares (1,435 acres).
(ii) Map of Unit 1 follows:
[[Page 60205]]
[GRAPHIC] [TIFF OMITTED] TP02OC12.001
(7) Unit 2: Pryor Spring/Pryor Branch, Limestone County, Alabama.
(i) General Description. Unit 2 includes 3.4 km (2.1 mi) of Pryor
Spring and Pryor Branch from the spring head, about 3.7 mi (5.9 km)
south of Tanner, Alabama, and just east of Highway 31, downstream to
the bridge where it intersects with Harris Station/Thomas L. Hammons
Road. This also includes a total of 73.6 ha (182 ac) in area.
(ii) Map of Unit 2 follows:
[[Page 60206]]
[GRAPHIC] [TIFF OMITTED] TP02OC12.002
* * * * *
Dated: September 13, 2012.
Michael J. Bean,
Assistant Secretary for Fish and Wildlife and Parks.
[FR Doc. 2012-23854 Filed 10-1-12; 8:45 am]
BILLING CODE 4310-55-C