Endangered and Threatened Wildlife; Sea Turtle Conservation, 50361-50373 [06-7160]
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Federal Register / Vol. 71, No. 165 / Friday, August 25, 2006 / Rules and Regulations
Dated: August 17, 2006.
David I. Maurstad,
Mitigation Division Director, Federal
Emergency Management Agency, Department
of Homeland Security.
[FR Doc. E6–14141 Filed 8–24–06; 8:45 am]
BILLING CODE 9110–12–P
DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric
Administration
50 CFR Parts 222 and 223
[Docket No. 050315074–6117–02; I.D.
022405B]
RIN 0648–AS92
Endangered and Threatened Wildlife;
Sea Turtle Conservation
National Marine Fisheries
Service (NMFS), National Oceanic and
Atmospheric Administration (NOAA),
Commerce.
ACTION: Final rule.
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AGENCY:
SUMMARY: NMFS issues this final rule to
require sea turtle conservation measures
for all sea scallop dredge vessels fishing
south of 41° 9.0′ N. latitude from May
1 through November 30 each year. All
vessels with a sea scallop dredge and
that are required to have a Federal
Atlantic sea scallop fishery permit,
regardless of dredge size or vessel
permit category, must modify their
dredge(s) when fishing south of 41° 9.0′
N. latitude, from the shoreline to the
outer boundary of the Exclusive
Economic Zone (EEZ). This action is
necessary to help reduce mortality and
injury to endangered and threatened sea
turtles in scallop dredge gear and to
conserve sea turtles listed under the
Endangered Species Act (ESA). Any
incidental take of threatened sea turtles
in sea scallop dredge gear in compliance
with this gear modification requirement
and all other applicable requirements
will be exempted on the ESA’s
prohibition against takes.
DATES: Effective September 25, 2006.
ADDRESSES: Copies of the
Environmental Assessment (EA) and
Regulatory Impact Review/Final
Regulatory Flexibility Analysis (RIR/
FRFA) prepared for this final rule may
be obtained by writing to Ellen Keane,
NMFS, Northeast Region, One
Blackburn Drive, Gloucester, MA 01930.
FOR FURTHER INFORMATION CONTACT:
Ellen Keane (ph. 978–281–9300 x6526,
fax 978–281–9394, email
ellen.keane@noaa.gov) or Barbara
Schroeder (ph. 301–713–1401, fax 301–
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713–0376, email
barbara.schroeder@noaa.gov).
SUPPLEMENTARY INFORMATION:
Background
All sea turtles that occur in U.S.
waters are listed as either endangered or
threatened under the Endangered
Species Act of 1973 (ESA). The Kemp’s
ridley (Lepidochelys kempii),
leatherback (Dermochelys coriacea), and
hawksbill (Eretmochelys imbricata) sea
turtles are listed as endangered. The
loggerhead (Caretta caretta) and green
(Chelonia mydas) sea turtles are listed
as threatened, except for breeding
populations of green turtles in Florida
and on the Pacific coast of Mexico that
are listed as endangered. Due to the
inability to distinguish between these
populations of green turtles away from
the nesting beach, NMFS considers
green sea turtles endangered wherever
they occur in U.S. waters. Kemp’s
ridley, hawksbill, loggerhead, and green
sea turtles are hard-shelled sea turtles.
The incidental take, both lethal and
non-lethal, of loggerhead and
unidentified hard-shelled sea turtles as
a result of scallop dredging has been
documented in the sea scallop dredge
fishery. In addition, non-lethal takes of
a green and a Kemp’s ridley sea turtle
have been documented in this fishery.
This action, taken under the authority
of section 4(d) of the ESA, is necessary
to provide for the conservation of
threatened loggerhead sea turtles, and
will have ancillary benefits for Kemp’s
ridley and green sea turtles, which have
been observed taken in the sea scallop
dredge fishery, albeit to a lesser extent
than loggerheads. Under the ESA and its
implementing regulations, taking
endangered sea turtles - even
incidentally - is prohibited. The
incidental take of endangered species
may only legally be exempted by an
incidental take statement or an
incidental take permit issued pursuant
to section 7 or 10 the ESA, respectively.
Existing sea turtle conservation
regulations at 50 CFR 223.206(d) exempt
fishing activities and scientific research
from the prohibition on takes of
threatened species under certain
conditions. Any incidental take of
threatened loggerhead sea turtles in sea
scallop dredge gear in compliance with
this gear modification requirement and
other applicable requirements is
exempted from the prohibition against
takes. Additional background
information for this action is included
in the preamble to the proposed rule (70
FR 30660, May 27, 2005).
Based on the available information,
NMFS has determined that the use of a
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50361
dredge modified with a chain mat will
prevent most, if not all, captures of sea
turtles in the dredge bag as well as any
ensuing injuries as a result of being
caught in the dredge (e.g., crushing in
the dredge bag, crushing on deck, etc.).
In addition, it is possible that this action
may reduce drowning due to forced
submergence following an interaction
with sea scallop dredge gear on the
seafloor. Sea turtles observed captured
in the scallop dredge fishery in 2003
ranged in size from 55 107 cm (21.6 –
42.1 inches) from notch to tip (curved
carapace length). When converted to
straight carapace length (SCL) based on
the formula for loggerheads provided in
Teas (1993), the size range of the
loggerhead sea turtles observed captured
in the fishery in 2003 is 51–100 cm
(20.1 - 39.4 inches). NMFS reviewed
size at stage data for Atlantic
loggerheads. Depending on the dataset
used, the cutoff between pelagic
immature and benthic immature
loggerhead sea turtles was 42–49 cm
(16.5 – 19.3 inches) SCL, and the cutoff
between benthic immature and sexually
mature loggerhead sea turtles was
described as 83 90 cm (32.7 – 35.4
inches) SCL (NMFS SEFSC, 2001).
Other authors define the benthic
immature stage for loggerheads as 36
100 cm (14.2 - 39.4 inches) (Bass et al.,
2004). Based on these datasets and
observer measurements of loggerhead
sea turtles captured in the sea scallop
dredge fishery, NMFS anticipates that
both benthic immature and sexually
mature loggerhead sea turtles are
captured in this fishery. NMFS
recognizes that, on rare occasions, sea
turtles that interact with the modified
gear may be small enough to enter the
dredge bag, and that this interaction
may result in the capture of the sea
turtle in the bag. However, NMFS
expects this to be a rare occurrence
based on the life history of loggerhead
sea turtles and the observer
measurements.
This action requires all vessels with a
sea scallop dredge and that are required
to have a Federal Atlantic sea scallop
fishery permit, regardless of dredge size
or vessel permit category, to modify
their dredge(s) with a chain mat
configuration when fishing south of 41°
9.0′ N. latitude (lat.) from the shoreline
to the outer boundary of the EEZ.
New Information
On May 27, 2005, NMFS published a
proposed rule to require the
modification of sea scallop dredge gear
for Federally-permitted vessels fishing
in the mid-Atlantic. Comments on this
proposed action were requested through
June 27, 2005. Since the publication of
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the proposed rule, three new pieces of
information have become available.
First, the Northeast Fisheries Science
Center (NEFSC) re-examined observer
records to clarify the species identity of
two individual sea turtle takes that were
observed in the sea scallop dredge
fishery in 1996 and 1997. With respect
to interactions between sea scallop
dredge gear and sea turtles, ‘‘observed
take’’ and ‘‘observed’’ refer to
interactions that were seen and
documented by a NMFS approved
observer while on-watch. The 1996 take
was deemed to be a loggerhead sea
turtle and the 1997 take a green sea
turtle. Secondly, a sea turtle take
occurred in August 2005 in the Georges
Bank sea scallop dredge fishery. The
observer was off-watch at the time the
sea turtle was taken. It is important to
note that when an observer is off-watch
at the time of the take much of the
information on the haul that would
otherwise be recorded will not be
included in the observer’s report. This
sea turtle was identified as a Kemp’s
ridley sea turtle and this identification
was confirmed through photographs.
Lastly, a bycatch estimate of loggerhead
sea turtles captured in the 2004 midAtlantic sea scallop dredge fishery
became available. This assessment
estimated 180 loggerhead sea turtles (CV
= 0.37) to have been captured in sea
scallop dredge gear operating in the
Mid-Atlantic from June 1 through
November 30.
Comments and Responses
Nine comment letters from eight
different individuals or organizations
were received during the public
comment period for the proposed rule.
Five commenters were generally
supportive of the action but provided
comments on particular aspects of the
proposed rule, and three commenters
were opposed to the proposed action.
Two public hearings were held during
the comment period. One in Fairhaven,
Massachusetts on June 16, 2005, and
one in Cape May, New Jersey on June
22, 2005. Two individuals provided oral
comments. Both of the oral comments
were generally supportive of the
proposed action. One of the individuals
also provided written comments. A
complete summary of the comments and
NMFS’ responses, grouped according to
general subject matter in no particular
order, is provided here.
Comment 1: Four comments
addressed the spatial extent of the
proposed rule. One commenter
supported using a longitudinal line at
70° 20′ W. longitude (long.) as the
eastern boundary of the rule, one
supported keeping the spatial extent as
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proposed as there is not evidence that
sea turtles do not use the entire region,
one stated that the spatial extent was too
broad, and one urged caution when
choosing a longitude closer to shore as
sea turtles are found in warmer waters
closer to the Gulf Stream. Additionally,
this commenter felt that the northern
boundary did not adequately assess the
potential for interactions on Georges
Bank and in the Gulf of Maine, that
‘‘near-shore’’ areas potentially prone to
warmer waters should potentially be
regulated more, and that special care
should be taken for vessels to avoid
waters close to known nesting beaches
during sea turtle nesting and mating.
Response: Sea turtle species that are
found off the northeastern coast of the
United States north of Cape Hatteras,
North Carolina are, in order of
frequency of occurrence, loggerhead,
leatherback, Kemp’s ridley, and green
sea turtles (Shoop, 1980; Shoop and
Kenney, 1992). This action will provide
for the conservation of threatened
loggerhead sea turtles and will have
ancillary benefits for Kemp’s ridley and
green sea turtles.
Loggerhead, Kemp’s ridley, and green
sea turtles undergo temperature
dependent seasonal migrations along
the mid-Atlantic coast (Morreale and
Standora, 1998; Plotkin and Spotila,
2002). In general, these turtles occur in
waters off North Carolina year round, in
the inshore waters (i.e., bays, estuaries,
and other coastal waters) of Virginia
from May through November, and in
New York’s inshore waters from June
through October (NMFS, 1994). All
three are species are known to occur in
Massachusetts waters as far north as
Cape Cod, but with the exception of rare
sightings and strandings are not known
to occur in more northern New England
waters (Shoop and Kenney, 1992;
Mitchell et al., 2003). Detailed
information on the distribution of sea
turtles can be found in the EA for this
action.
Off the northeastern U.S., loggerhead
sea turtles are commonly sighted across
the continental shelf from the shore to
the shelf break as far north as Long
Island (approximately 41° 9.0′ N.
latitude), although further north and
east sightings are sparse (CeTAP, 1982;
Shoop and Kenney, 1992; Mitchell et
al., 2003). During CeTAP surveys,
loggerhead sea turtles, the most
common sea turtle observed taken in the
sea scallop dredge fishery, were rarely
documented north of 41° N lat (Shoop
and Kenney, 1992). South of Cape
Hatteras, loggerhead sea turtles are yearround residents (Mitchell et al., 2003).
In the western Atlantic, Kemp’s ridley
sea turtles are found year-round in the
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Gulf of Mexico and many juveniles
migrate north along the east coast in the
summer (Wynne and Schwartz, 1999).
Off the northeastern U.S., inshore
waters of southern New England,
especially Cape Cod Bay and Long
Island Sound, appear to be
developmental habitat for juvenile
Kemp’s ridley and green sea turtles
(Mitchell et al., 2003; Morreale and
Standora, 2005). During the summer and
fall, Kemp’s ridley and green sea turtles
are expected to occur predominantly in
inshore waters where the scallop fishery
does not typically operate (Lutcavage
and Musick, 1985; Keinath et al., 1987;
Morreale and Standora, 1993; Spotila et
al., 1998). In addition, although the
broadest extent of the western Atlantic
green sea turtle’s range is from
Massachusetts to Argentina, including
the Gulf of Mexico and the Caribbean,
they are considered rare north of Cape
Hatteras (Wynne and Schwartz, 1999).
In 1997, a green sea turtle was observed
taken in the sea scallop dredge fishery
operating off of New Jersey. Based on
the identification of species taken in
this fishery and the distribution of green
and Kemp’s ridley sea turtles, NMFS
expects the take of these species in the
sea scallop dredge fishery to be rare.
The hawksbill sea turtle is uncommon
in waters of the continental United
States, preferring coral reefs. There are
accounts of hawksbills in south Florida
and a number are encountered in Texas.
In the north Atlantic, small hawksbills
have stranded as far north as Cape Cod,
Massachusetts. However, many of these
strandings were observed after
hurricanes or offshore storms. No takes
of hawksbill sea turtles have been
recorded in the northeast or midAtlantic fisheries covered by the
Northeast Fisheries Science Center
observer program. Hawksbills are not
expected to be present in the area
impacted by this action.
Interactions with sea turtles have been
observed in the sea scallop dredge
fishery south of 41° N. 9.0′ N lat. to the
Virginia/North Carolina border. A total
of 61 sea turtles have been observed
taken in the Atlantic sea scallop dredge
fishery during normal fishery operations
from 1996 through October 31, 2005. Of
these, 44 were identified as loggerhead
sea turtles, 1 was identified as a green
sea turtle, and 15 were hard-shelled sea
turtles that could not be positively
identified. An additional 13 sea turtles
were reported captured while the
observer was off-watch. These include a
Kemp’s ridley sea turtle in the sea
scallop dredge fishery in August 2005.
Prior to 2005, no sea turtle takes had
been observed in the sea scallop dredge
fishery outside the mid-Atlantic region.
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Federal Register / Vol. 71, No. 165 / Friday, August 25, 2006 / Rules and Regulations
In the 1999 and 2000 scallop fishing
years, relatively high levels of observer
coverage (22 percent – 51 percent)
occurred in portions of the Georges
Bank Multispecies Closed Areas that
were conditionally opened to scallop
fishing. Despite this high level of
observer coverage and operation of
scallop dredge vessels in the area during
June - October, which is generally when
the water could be warm enough to
support sea turtles, no sea turtles were
observed captured in scallop dredge
gear in these years. From 2001 through
2004, observer coverage was low in the
Gulf of Maine (<1 percent in 2001, 2002,
and 2004) and Georges Bank regions (<1
percent in 2001, 2002, and 2003; < 2
percent from September through
November 2004 with most of the
coverage occurring in November)
(Murray 2004, 2005). In August 2005, a
Kemp’s ridley sea turtle was taken at
approximately 40° 58′ N. lat./67° 16′ W.
long. by a dredge vessel operating on
southern Georges Bank indicating that
takes in this area are possible.
Based on: (1) the known distribution
of sea turtles, (2) sea scallop dredge
fishing effort, and (3) the observed take
of sea turtles in this fishery, NMFS
expects the take of sea turtles by dredge
vessels operating in the New England
sea scallop dredge fishery on Georges
Bank to be rare. However, the take of the
Kemp’s ridley sea turtle on southern
Georges Bank is evidence that takes in
this area are possible. It should be noted
that this take occurred on southern
Georges Bank, south of the 41° 9.0′ N.
lat. boundary. Although takes of sea
turtles north of this boundary are
possible, NMFS expects interactions
between sea turtles and sea scallop
dredge gear in this area to be rare. This
final rule requires vessels fishing south
of 41° 9.0’ N. lat. from the shoreline to
the outer boundary of the EEZ to use the
chain mat configuration from May 1
through November 30 each year.
Mating for loggerhead sea turtles takes
place in late March to early June in the
general vicinity of the nesting area, and
eggs are laid throughout the summer. In
the western Atlantic, most loggerhead
sea turtles nest from North Carolina to
Florida and along the Gulf Coast of
Florida, although Virginia is the
northernmost extent of loggerhead
nesting on the eastern coast of the
United States (DeGroot and Shaw, 1993;
USFWS 2004). Sea scallops only occur
in inshore waters in the Gulf of Maine
and Canada. Therefore, NMFS does not
anticipate the overlap of sea turtles and
sea scallop dredging in inshore areas
during nesting and mating season.
Comment 2: Two comments
addressed the temporal extent of the
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proposed rule. One commenter
supported the use of November 30, the
preferred alternative, rather than
October 15, as described in nonpreferred alternative 1, to better account
for variability in sea turtle migration
and fishing activities. The other
commenter stated that the proposed rule
is for too long a time and the
modification should be required when
sea turtles are in the area (a dynamic
area management (DAM) program). The
commenter explained that the DAM
program could be implemented
similarly to the program currently used
for right whales and could use the
observer program to report the presence
of sea turtles in the area. The
commenter also stated that the use of
the turtle chains will consume more
fuel, catch less scallops, and be less
efficient. The commenter believes that a
DAM program would minimize this loss
of efficiency and the use of a nonrenewable resource, fuel.
Response: The temporal extent of
these proposed measures are based on
the time period associated with the
overlap of sea turtles and the sea scallop
dredge fishery using Cape Hatteras,
North Carolina as the lower boundary.
Cape Hatteras was chosen as the lower
boundary as NMFS does not anticipate
any fishing south of Cape Hatteras due
to a lack of scallop resources. In general,
hard-shelled sea turtles move from
offshore to inshore and/or from south to
north in the spring and in the opposite
direction in the fall. These turtles occur
year round in waters off North Carolina;
however, they are considered rare North
of Cape Hatteras in the winter (Mitchell
et al., 2003). Hard-shelled sea turtles
occur in the inshore waters (i.e., bays,
estuaries, and other coastal waters) of
Virginia from May through November,
and in New York’s inshore waters from
June until October (NMFS, 1994).
Interactions between the sea scallop
dredge fishery and hard-shelled sea
turtles have been documented from late
June to late October, and the potential
for interactions exists during May and
November due to the overlap of sea
turtles and fishing distribution.
Interactions with sea turtles have been
observed in the sea scallop dredge
fishery south of 41° 9.0’ N. lat. to the
Virginia/North Carolina border. Based
on the known distribution of sea turtles,
as described in the response to
Comments 1 and 2, the observed take of
sea turtles in the sea scallop dredge
fishery from June through October, and
to account for variability in both sea
turtle migration and fishing activity, the
final rule requires vessels to use the
modified sea scallop from May 1
through November 30 each year.
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At this time, it would not be feasible
to implement a DAM program for sea
turtles. The DAM program for right
whales is based on scientific aerial
survey effort. These aerial surveys for
right whales are not designed to assess
sea turtle distribution and, currently,
there is no aerial survey program for sea
turtles. The observer program is not the
appropriate platform for looking for sea
turtle aggregations as sea turtles are
often difficult to see from a vessel, the
program is not a scientific survey to
assess distribution of protected species,
and observer locations are determined
by many criteria and may not be
appropriate for evaluating aggregations
of turtles in the mid-Atlantic.
Comment 3: One commenter stated
that the proposed rule should identify
areas more prone to sea scallop dredge
- sea turtle interactions based on water
temperature and known sea turtle
biology. The commenter also stated that
although it is not reasonable to ask that
all scallop dredging cease during
warmer months, dredging should be
restricted in shallow embayments and
deeper offshore waters during these
months.
Response: During 2001–2003, sea
surface temperature (SST) was found to
be significant factor influencing sea
turtle bycatch rates in the mid-Atlantic
sea scallop dredge fishery. In 2001 and
2002, a higher probability of turtle
bycatch occurred after waters had
warmed to 19 °C and in 2003, higher
probabilities occurred after waters
warmed to 22 °C. These differences may
reflect inter-annual variations in SST or
turtle distributions, shifting patterns in
the fishery, or interactions between
random samples and statistical models
(Murray, 2004). Murray (2004) found
that there may be a minimal threshold
above which sea turtle bycatch is likely
to occur, although this minimal
temperature threshold is likely to
fluctuate from year to year. SST was not
found to be a significant predictor of sea
turtle bycatch rates in the mid-Atlantic
during the 2004 fishing year (Murray,
2005). Interactions in 2004 may have
been influenced by a combination of
depth zone and SST, and the small
number of takes in 2004 relative to the
number of dredge hours examined
(approximately 1 take:1,000 observed
dredge hours) may have precluded the
detection of a significant effect. The rare
nature of turtle interactions in 2004
made it difficult to identify variables
significantly affecting bycatch rates, and
even area and depth, selected for a best
fit, were not strong predictors (Murray,
2005).
Due to the influence of temperature in
2001, 2002, and 2003 affecting sea turtle
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bycatch rates, NMFS considered an
alternative which would provide
protection to sea turtles when sea
surface temperatures reached a level at
which elevated sea turtle bycatch was
expected. Under the alternative, vessels
would be prohibited from fishing south
of 41° 9.0′ N. lat. and north of 38° 0.0′
N. lat. from May 1 through October 31
and south of 38° 0.0′ N. from May
through November 30. NMFS rejected
this alternative from further analysis as
it would result in essentially the same
impacts to sea turtles and the fishing
industry as a closure from May 1
through November 30 each year (see
Comment 4 for a more detailed response
regarding seasonal closures) and, given
the recent bycatch analysis, the
relationship between elevated levels of
bycatch and SST is unclear. Requiring
the chain mat modification when sea
surface temperatures reached a level at
which elevated sea turtle bycatch was
expected would likely result in the same
impacts as this action. The sea scallop
dredge fishery is not expected to overlap
with sea turtle distribution in shallow
embayments of the mid-Atlantic as sea
scallops do not occur in shallow
embayments there. Sea scallops only
occur in inshore waters in the Gulf of
Maine and Canada.
Comment 4: One comment was
received that supported non-preferred
alternative 3 (seasonal closure of the
mid-Atlantic) to effectively protect sea
turtles from scallop dredging during the
summer by removing sea scallop dredge
vessels from the times and places where
sea turtles occur. The commenter stated
that this is the only alternative that can
be shown to effectively reduce
loggerhead sea turtle takes and
subsequent injury and mortality, that
concern about displacement of effort
adversely affecting habitat should not
block protection of sea turtles, and that
economic considerations in no way
argue against alternative 3, in part
because the economic analysis of
alternative 3 is grossly irrational (see
Comment 17).
Response: A seasonal closure of all
waters south of 41° 9.0′ N. lat. was
considered and analyzed in the EA. This
alternative would provide the most
protection to sea turtles as scallop
dredge vessels would not be in the area
when sea turtles are present. Sea scallop
fishing is not distributed evenly
throughout this area. In a review of
Vessel Trip Reports for 2003 and 2004,
reported trips for the mid-Atlantic
(defined in Murray as approximately
41°15′N/70°00’W to 36°06′N/70°00′W)
during the period June through
November occurred from approximately
75° 30.0′ W. long. to approximately 71°
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W long. (Murray 2004, 2005). The
commercial sea scallop fishery in the
mid-Atlantic generally operates at
depths between 35 – 75 m (memo from
John Boreman to Patricia A. Kurkul, 6
December 2004).
At this time, it is not known whether
sea turtles interact with sea scallop
dredge gear throughout the area in
which the fleet operates in the midAtlantic or if interactions are limited to
certain areas and certain times. Observer
coverage has documented several trips
on which more than one sea turtle was
observed taken. In 2002, out of 62
observed trips, one of the observed trips
took three sea turtles and four of the
observed trips took two sea turtles. In
2003, out of 71 observed trips, one of
the observed trips took four sea turtles,
two of the observed trips took three sea
turtles, and three of the observed trips
took two sea turtles (Murray, 2004), and
in 2004, out of 172 observed trips, one
observed trip took two sea turtles
(Murray, 2005). At this time, NMFS
does not know why some trips have
multiple takes and does not have
sufficient evidence to refine a potential
closure area further.
A closure of the mid-Atlantic would
likely result in a shift of effort further
north. A behavioral model, which does
not exist at this time, would be
necessary to assess shifts in effort. In the
absence of this model, NMFS assumed
the worse case scenario that vessels
would choose not to fish an alternative
area. According to the 2003 VTR data,
of the 314 scallop dredge vessels that
fished in the mid-Atlantic during May
through November, 208 vessels fished
exclusively in the mid-Atlantic region
and 106 vessels fished in the midAtlantic and further north. If, under a
closure, vessels choose to relocate to
fishing grounds not affected by the
closure, gear conflicts may result. As the
number of scallop vessels fishing on
these grounds increases, the vessels
would be competing with other scallop
vessels that have historically fished
these grounds as well as with each
other. Other gear conflicts might include
the lobster fishery and, to a lesser
extent, the groundfish fishery. It is
difficult to determine how much effort
would increase on Georges Bank based
on a closure in the mid-Atlantic, but if
effort were to increase on Georges Bank,
there could be an increase in the
bycatch of groundfish in this area.
The extent of this shift and its impacts
on physical, habitat, and biological
resources in these areas cannot be
quantified at this time. In general, a shift
in effort would increase impacts to
habitat in the areas outside of the midAtlantic and perhaps in the mid-
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Atlantic during the periods it would be
open to sea scallop dredge fishing.
During the closure (May through
November), it is expected that there
would be beneficial impacts to the midAtlantic habitat. The net impacts, and
the magnitude of these impacts, to
habitat are not clear. The economic
analysis for a seasonal closure in the
mid-Atlantic assumed the economically
worst case scenario, that the alternative
would not result in a displacement of
effort. Instead, the analysis assumed that
the vessels would not fish during the
closure period (see Comment 17 for a
more detailed response regarding the
economic analysis). It is likely that some
vessels will shift their fishing effort to
other areas; therefore, the economic
impact will be less than that assumed
for the final EA. Due to these factors the broad extent of the closure area,
displacement of effort, and uncertainty
of the extent of the area in which
interactions are occurring - nonpreferred alternative 3 was rejected.
Comment 5: One commenter stated
that all dredging should be banned year
round in the area proposed. This
commenter also stated that all longlines
and purse seine fishing should be
banned.
Response: As described in the
response to Comment 2, sea turtle
presence varies with season. The
capture of sea turtles in sea scallop
dredge gear has been documented in the
mid-Atlantic from June through October
and the potential for takes exists in May
and November due to the overlap of the
sea scallop dredge fishery with sea
turtle distribution. As described above,
a single sea turtle take has been
documented in the sea scallop dredge
fishery on southern Georges Bank in
August. As sea turtle distribution and
sea scallop dredge effort are not
expected to overlap from December 1
through April 30, extending the
effective period of the rule through
these months is not expected to provide
additional benefit to sea turtles. A
seasonal closure of the mid-Atlantic to
sea scallop dredging is addressed in the
response to Comment 4. The comments
regarding longline and purse seine
fisheries are not relevant to the
proposed rule.
Comment 6: Two comments were
received relating to scallop dredge gear
and operational modifications in the
fishery. One commenter stated that the
rule should require modifications to the
dredge frame and cutting bar to reduce
injury to sea turtles as well as
modifications in the operation of the
fishery, including not setting gear if a
sea turtle is seen in wake, stopping gear
at the 10–fathom mark for 30 seconds
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during haul back, and restricting tow
times to reduce drowning of sea turtles.
Another commenter stated that NMFS
should consider additional ways to
reduce interactions of dredges with
turtles, such as keeping discards on
board during fishing operations.
Response: NMFS is working with
industry to evaluate the effectiveness of
a dredge with a modified cutting bar
and bail. This dredge was designed to
reduce serious injury to sea turtles that
may be encountered on the bottom.
Initial testing of the gear in Panama
City, FL showed that the gear was
capable of deflecting a model turtle over
the bail. However, additional studies are
necessary to assess the effectiveness of
this modification at reducing the
severity of interactions on the ocean
floor and at maintaining the scallop
catch. This gear research is on-going.
It has been suggested that the discard
of scallop viscera during fishing
operations may be attracting sea scallop
dredge vessels to the fishing area. White
(2004) reported loggerhead sea turtles
opportunistically feeding on discards
from gillnet vessels docked at a quay in
Greece and there are anecdotal reports
of sea turtles opportunistically feeding
on discards in the shrimp trawl fishery.
It is unclear whether the turtles were
drawn to the vessel because of the
discards or just happened to be in the
same place as the vessels at the same
time. At this time, NMFS has no
evidence to refute or support the
possibility that discards may be
attracting sea turtles to the scallop
vessel. In addition, it is not clear what
the effect would be from a prohibition
of dumping viscera. Sea turtles that may
be attracted to discarded viscera might
disperse away from fishing vessels if the
practice is prohibited. Alternatively,
these turtles may remain in the fishing
area and feed on natural prey in the
benthos. It is not clear that a prohibition
on the discard of sea scallop viscera
would reduce the risk of interaction.
NMFS does encourage observers to
collect all sea turtle carcasses brought
on board for necropsy, including an
analysis of stomach/GI samples for prey
items. However, this is logistically
difficult and, to date, only one sea turtle
carcass has been returned and
necropsied. Stomach and intestinal
samples could not be obtained from this
turtle due to its condition.
In the draft EA for the proposed rule
and the final EA, NMFS considered an
alternative that would require
operational modifications in the sea
scallop dredge fishery. Although
operational modifications could provide
some benefit to sea turtles, the extent of
these benefits is unclear. It would be
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difficult to ensure compliance and to
assess the impact of these modifications
on sea turtles. Due to this uncertainty,
this alternative was rejected and not
further analyzed.
Comment 7: One commenter stated
that the decrease in scallop catch would
be greater than the 6.71 percent
observed in the experimental fishery.
Another commenter stated that the
proposed rule affords a practical
solution, that the modification could be
retrofitted onto existing scallop dredges,
and that the costs of the chains and
losses of scallops are a reasonable
measure for insuring the conservation of
sea turtles stocks as well as the viability
of the industry.
Response: During the experimental
fishery to test the chain mat
configuration, scallop catches were
variable from vessel to vessel and trip to
trip, with differences ranging from
-30.88 percent to 7.28 percent (average
-6.71 percent). The study authors and
NMFS gear technologists anticipate that
the difference in catch will decrease as
industry becomes more familiar with
the chain configuration. However, if
vessels with a loss of catch do not
choose not to offset this loss with an
increase in effort, there is the potential
for loss of revenue.
Comment 8: Two comments were
received on the species considered in
the proposed rule. One commenter
stated that the proposed rule should
consider other species of sea turtles
found in the geographic area of the
proposed measures. One commenter
stated that Kemp’s ridley, green, and
leatherback sea turtle may be captured
by scallop dredges and trawls as a
number of individuals captured in the
fishery are not identified to species. In
addition, the commenter stated that the
unobserved take reported as a
leatherback in the experimental fishery
should be considered valid. The
commenter believes that all four species
are likely to be taken in the fishery;
therefore, consultation should be
reinitiated and take of all four species
considered.
Response: Since the publication of the
proposed rule, two new pieces of
information have become available
indicating that Kemp’s ridley and green
sea turtles are vulnerable to capture in
sea scallop dredge gear. Two sea turtles
were observed taken in the sea scallop
dredge fishery from 1996 through 1997.
For the initial and subsequent Biological
Opinions on the Atlantic Sea Scallop
Fishery Management Plan, these sea
turtles were considered unidentified
hard shelled species based on
discussions with some of the staff of the
NEFSC. Subsequent to the publication
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of the proposed rule, the records
maintained by the Fisheries Sampling
Branch, NEFSC were re-examined and,
on August 23, 2005, the NEFSC
indicated that the 1996 sea turtle should
be considered a loggerhead and the 1997
sea turtle should be considered a green
based on written documentation
provided by the observer and the
observer’s experience. Both of these
observed takes occurred in the midAtlantic sea scallop dredge fishery.
Sea turtle species that are found off
the northeastern coast of the United
States north of Cape Hatteras, North
Carolina are, in order of frequency of
occurrence, loggerhead, leatherback,
Kemp’s ridley, and green sea turtles
(Shoop and Kenney, 1992). Additional
information on the distribution of
loggerhead, Kemp’s ridley, hawksbill
and green sea turtles is found in
comment 1 and the EA for this action.
This action will provide for the
conservation of threatened loggerhead
sea turtles. Based on information
received subsequent to the publication
to the proposed rule, it is also expected
to have ancillary benefits for Kemp’s
ridley and green sea turtles, which have
been observed taken in the sea scallop
dredge fishery, albeit to a lesser extent
than loggerheads.
While the sea scallop dredge fishery
does overlap with leatherback sea turtle
distribution, NMFS has no confirmed
report that this gear interacts with
leatherback sea turtles, either in the
water column or on the bottom. During
the experimental testing of the modified
sea scallop dredge gear, two unobserved
interactions were reported. One of the
unobserved interactions was reported by
the fisherman as a loggerhead sea turtle.
The second unobserved interaction was
reported by the fisherman as a
leatherback. NEFSC’s general protocol
for confirmation of at-sea species
identification requires that the species
be considered as unknown unless either
the observer is experienced in sea turtle
identification and has confidence in the
identification, or the observer is
inexperienced and has provided
supporting information (i.e., photos,
tissue samples). As far as the NEFSC is
aware, the fishermen reporting the take
of the leatherback and the take of the
loggerhead have not been trained nor
are they experienced in identifying sea
turtle species. No supporting materials,
such as photos or tissue samples, have
been provided. Therefore, based on the
confirmation protocol for at-sea species
identification, the NEFSC considers the
species identification of these takes to
be ‘‘unknown turtle species’’.
Leatherback sea turtles are
predominantly a pelagic species and
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feed on jellyfish. Since scallop dredge
gear operates on the bottom, leatherback
sea turtles are less likely to encounter
this gear compared with loggerhead sea
turtles. Given their large size, prey and
habitat preferences, leatherback sea
turtles are not expected to be struck by
the gear operating on the bottom or
caught in sea scallop dredge gear. In the
unlikely event that a leatherback sea
turtle were to interact with sea scallop
dredge gear, the chain mat configuration
would prevent it from entering the
dredge bag, and would prevent
subsequent injuries that might ensue
from such capture.
As provided in 50 CFR 402.16,
reinitiation of formal consultation is
required where discretionary Federal
agency involvement or control over the
action has been retained and if: (1) the
amount or extent of incidental take is
exceeded; (2) new information reveals
effects of the agency action that affect
listed species or critical habitat in a
manner or to an extent not considered
in the previous opinion; (3) the agency
action is subsequently modified in a
manner that causes an effect to listed
species or critical habitat not considered
in the previous opinion; or (4) a new
species is listed or critical habitat
designated that may be affected by the
action. This action does not trigger
reinitiation.
Although this action does not trigger
reinitiation of consultation, NMFS
reinitiated ESA section 7 consultation
on the Scallop FMP on November 1,
2005. Observer coverage of the Atlantic
sea scallop fishery in the 2005 fishing
year and a review of past observer
records has revealed new information
on the fishery in relation to its effects on
ESA-listed sea turtles. This information
includes the take of five loggerhead sea
turtles in the sea scallop trawl fishery,
the take of a Kemp’s ridley on southern
Georges Bank, and confirmation from
the NEFSC that a turtle observed taken
in scallop dredge gear in 1997 should be
considered a green sea turtle.
Comment 9: Several comments were
received on the nature of the
interaction. One commenter expressed
concerns that the tests on the chain mats
have been limited and that additional
research is needed to determine how
‘‘dredge bars’’ injure and kill sea turtles.
A second commenter stated that it is
unknown what happens when turtles
interact with the chain mat modified
dredge and that there is a significant
risk that the chains do not reduce take,
but simply change the nature of the
interaction. This commenter also stated
that, without video monitoring, it is
possible that the rule may prevent real
attempts to address the problem by
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hiding what is happening from view
and that, to be effective, video work
must be done in a systematic manner
prior to proposing the modifications as
a regulation. The commenter stated that
the proposed action may do very little
to reduce mortality and injury to sea
turtles and that NMFS admits that the
chain mat configuration would not
lessen the number of sea turtles taken,
injured, or killed by the dredge on the
sea floor. The commenter stated that it
stands to reason that a significant
number of the sea turtles that are
seriously injured and end up dying are
caught on the sea floor as the dredge is
towed on the sea floor for far more time
than it is hauled up to the boat through
the water column. Lastly, the
commenter states that the EA does not
appear to analyze how often injuries
occur from interactions with the dredge
in the water column, but the implication
is that even without the turtle chains,
such interactions are unlikely. Another
commenter stated that it is unlikely that
strikes by scallop dredges with turtle
excluder devices represent a significant
source of mortality or injury while
fishing on bottom. The commenter
stated that while fishing, dredges are
towed at a relatively slow speed and
that it appears that most injuries result
from negative interactions caused when
turtles enter the dredge, remain
submerged, or are brought on deck.
Response: NMFS recognizes the
uncertainty regarding whether sea
turtles interact with sea scallop dredges
as the dredge is dragged along the
bottom, as the dredge is hauled back, or
both. It takes approximately 1 minute to
set a dredge and approximately 10
minutes to haul back, dump the catch,
and reset the gear. For the remainder of
the haul, the gear is on the bottom.
However, it is not known where sea
turtles are encountering the gear. It is
likely that sea turtles are interacting
with the gear both in the water column
and on the bottom. Sea turtles have been
observed in the area in which sea
scallop gear operates and they have
been seen near scallop vessels when
they are fishing or hauling gear. In
addition, sea turtles are known to forage
and rest on the sea floor as part of their
normal behavior. The condition of sea
turtles observed taken in the sea scallop
dredge fishery ranges from alive with no
apparent injuries to alive and injured to
fresh dead. As described below, NMFS
believes that interactions between sea
turtles and sea scallop dredge gear that
occur on the bottom are likely to result
in serious injury to the sea turtle. Based
on this assumption, NMFS believes that
the unharmed/slightly injured turtles
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observed captured in the sea scallop
dredge bag follow an interaction with
sea scallop dredge gear in the water
column.
Data do not exist on the percentage of
sea turtles interacting with the chain
mat-modified gear that will be
unharmed, sustain minor injuries, or
sustain serious injuries that will result
in death or failure to reproduce.
However, there are several assumptions
that can be made to assess the degree of
interaction. With the chain mat installed
over the opening to the dredge bag, it is
reasonable to assume that sea turtles,
which would otherwise enter the dredge
bag, will instead come into contact with
the chain mat at least. NMFS recognizes
that this modification may not reduce
the number of sea turtles interacting
with sea scallop dredge gear, but it is
reasonable to assume that the
modification will reduce mortality and
the severity of injury following
interactions that occur in the water
column. After an interaction in the
water column, severe injuries to sea
turtles following capture in a dredge bag
without the chain mat configuration
likely result from crushing by debris in
the dredge bag, dumping of the turtle on
the vessel’s deck, or crushing them with
falling gear. NMFS does not have
information on the proportion of takes
occurring in the water column.
However, preventing the turtles from
entering the dredge bag will prevent
injuries resulting from such capture and
likely result in a non-serious interaction
following an encounter in the water
column.
With the chain mat in place, it is
reasonable to assume that the sea turtles
on the sea floor would still interact with
the gear, but that the nature of the
interaction would be different. With the
modified gear, the sea turtles may still
be hit by the leading edge of the frame
and cutting bar and would likely be
forced down to the sea floor rather then
swept into the dredge bag. Since the
turtles are not being swept into the bag,
they could be run over by the dredge
bag and club stick. At this point, the
turtle will have likely already been hit
and run over by the cutting bar and the
leading edge of the dredge frame, which
constitutes a substantial weight. In
2005, NMFS worked with industry to
test a dredge with a modified cutting bar
and bail designed to minimize the
severity of impacts to turtles that may be
encountered on the bottom. A standard
New Bedford style dredge was used as
a control, and both dredges were
equipped with the chain mat
configuration, although the purpose of
the project was not to study the chain
mats. The project used turtle carcasses
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and model turtles to simulate a worse
case scenario of a dredge overtaking a
sea turtle lying on the bottom. During
the study, the turtle carcasses were
observed lodged in front of the cutting
bar and pushed along, eventually going
under the cutting bar and getting caught
on the chain mat. The model turtle was
deployed on one tow with the modified
dredge. During this tow, the model
turtle was deflected over the bail of the
modified dredge, indicating that this
type of modification might be effective
at reducing the severity of encounters
on the bottom. It is important to note
that the project was limited in that
behavioral responses of a live turtle
encountering a dredge could not be
assessed. The video from the study did
show that it is possible that sea turtles
encountering the dredge on the bottom
may become caught on the chains after
being hit by the leading bar of the
dredge. However, this follows the turtle
being struck by the leading edge of the
dredge during which it is likely to have
sustained serious injuries. NMFS has
made the conservative assumption that
a turtle in a bottom interaction sustains
serious injuries on the bottom regardless
of whether the chain mat is used. Under
this conservative assumption, there
would not be a benefit from the chain
mat for bottom interactions. This
assumption, however, may be too
conservative in that it is possible that
turtles in a bottom interaction may only
receive minor injuries. In the unlikely
scenario of a turtle receiving only minor
injuries following a bottom interaction,
the chain mat modification would
prevent serious injuries that result from
capture in the dredge bag (i.e., injuries
from debris in the bag, forced
submergence, dropping on deck, or
crushing by the dredge). A detailed
description the assumptions made and
the assessment of the interactions can be
found in the EA on this action.
NMFS recognizes that the interactions
between sea turtles and sea scallop
dredges are likely to continue and may
not be observed from on deck. In 2004
and 2005, NMFS conducted video
research to document the nature of the
interaction between sea turtles and sea
scallop dredge gear. Approximately 80
hours of video were collected and
reviewed. No sea turtles were
documented. Further video work may
be conducted under the Sea Scallop
Research Set Aside Program. It is
evident from these studies that using
video to document the specific nature of
sea turtle-sea scallop dredge
interactions, in general, and sea turtlechain mat interactions specifically, is
logistically difficult. Due to the low
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number of interactions between sea
turtles and sea scallop dredge gear
(approximately 1 take per 1,000
observed dredge hours in 2004), it will
be difficult to obtain sufficient video
documentation of sea turtle behavior to
allow a thorough analysis of the types
of interactions that may occur. Waiting
for such video documentation would
result in an extended delay in the use
of a chain-mat modified dredge. As this
modification is expected to provide a
net benefit to sea turtles, NMFS believes
it is important to move forward without
delay.
In addition, NMFS will monitor
scallop fishing effort for significant
increases or decreases in effort in the
mid-Atlantic and the possible effects
that changes in effort may have on sea
turtles. NMFS is continuing to
investigate modifications of the gear that
may reduce the effects of interactions
which occur on the ocean bottom.
Comment 10: Two comments were
received on the level of take in the sea
scallop fishery. One commenter stated
that NMFS has repeatedly failed to
recognize the extent and impact of the
scallop fishery’s impact on threatened
and endangered species, that the
anticipated take level in the proposed
rule does not incorporate the supposed
benefits of the chain mat requirement,
and that these benefits should be
reflected in a reduction of allowed take.
If the action is not expected to reduce
take and injury, then further efforts are
needed. In addition, the commenter
urged NMFS to expeditiously provide
information on genetic samples taken in
this fishery. The second commenter
stated that the proposed rule’s estimated
take was too low because the 2004
Biological Opinion did not include a
number of ways that dredges can take
sea turtles (i.e., being hauled up on top
of the gear, being wedged in the forward
parts of the dredge frame, being held
against the dredge by the pressure of the
flow of water, or by being run over by
the dredge and chain bag).
Response: According to the December
2004 Biological Opinion, the agency
anticipates that up to 749 sea turtles
will be taken each year without the
chain mat configuration in place, and
that up to 479 of these are expected to
sustain injuries leading to death or
failure to reproduce. As described in the
proposed rule (70 FR 30660) and in the
response to Comment 9, up to 749
turtles may still interact with the gear.
However, the chain mat configuration is
expected to prevent serious injury
leading to death or failure to reproduce
caused by dumping of the turtles on the
vessel’s deck and crushing them by
falling gear or debris in the bag
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following an interaction in the water
column. At this time, the proportion of
sea turtles interacting with the dredge
gear in the water column cannot be
quantified. In 2004 and 2005, NMFS
worked with industry to conduct
approximately 80 hours of video
research to document the nature of the
interaction between sea turtles and sea
scallop dredge gear and to investigate
the behavior of sea turtles around sea
scallop dredges, but no sea turtles were
documented.
Tissue samples for genetics samples
have been collected from loggerhead sea
turtles captured in the sea scallop
dredge fishery, and the results are still
pending. NMFS is working to obtain
these results as soon as is reasonably
possible.
The bycatch estimate completed by
the NEFSC, and the anticipated take
level in the 2004 Biological Opinion,
included any interaction occurring
during an on-watch haul, that was not
moderately or severely decomposed
upon capture. This includes sea turtles
hauled up on top of the gear, wedged in
the forward parts of the dredge frame, or
held against the dredge by the pressure
of the flow of water as observed from on
deck. Sea turtles may interact with sea
turtle dredge gear in the water column
or on the sea bottom and not be brought
to the surface. These interactions cannot
be quantified at this time.
Comment 11: A number of comments
were received on the need for additional
research including monitoring the
degree of progress made in reducing sea
turtle bycatch, modifications to the
dredge frame and cutting bar, video
footage to document the interactions,
and observer coverage on scallop dredge
vessels and underwater video cameras
on the dredge to evaluate the
effectiveness of the chain mats. One
commenter also expressed concern that
the tests on the chain mats have been
very limited, and urged NMFS to
provide extensive observer coverage to
determine the effectiveness of the chain
mats.
Response: As described above, NMFS
will continue to monitor the take of sea
turtles and the effectiveness of this
regulation in the sea scallop dredge
fishery through observer coverage,
fishing effort data, and other data, as
available. NMFS is currently working
with industry to research the
effectiveness of a dredge with a
modified bail and cutting bar at
reducing the severity of sea turtle
interactions that are occurring on the
sea floor bottom and retaining sea
scallop catch. This research is described
above. Video work conducted in 2004
by the NEFSC and industry did not
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document any interactions between sea
turtles and sea scallop dredge gear, but
was successful in devising a
methodology to video in front of sea
scallop dredges. In 2005, approximately
73 hours of video work was conducted
to document the nature of the
interaction between sea turtles and sea
scallop dredges and to investigate the
behavior of sea turtles around sea
scallop dredges. No sea turtles were
documented.
Comment 12: One commenter stated
that the proposed action could have
profound adverse effects on efforts to
protect loggerhead sea turtles and thus
on loggerhead turtle populations. The
commenter claimed that without video
monitoring, no one will know how
many loggerhead turtles were taken,
injured, and killed underwater, an
accurate estimate of sea turtle takes
would be impossible, and neither
individuals nor the agency would be
able to assess whether these takes may
exceed the December 2004 incidental
take statement. Another commenter
expressed concerns that the chain mat
modified dredge may contribute to
underestimates of sea turtle capture by
preventing injured and dead turtles
from being brought on deck.
Response: NMFS recognizes that
interactions between sea scallop dredge
gear and sea turtles are likely to occur
and that these interactions may not be
observed from on deck. As described
above, NMFS will continue to use
observer information, fishing effort data,
and other data, as available, to monitor
the fishery and its possible effects on
sea turtles. NMFS will use observer data
to continue to evaluate the take of sea
turtles in other parts of the dredge (i.e.,
the forward parts of the frame and on
top of the gear). In addition, observer
coverage may provide information on
the effectiveness of the chain mat
modification. NMFS will monitor
scallop fishing effort for significant
increases or decreases in effort in the
mid-Atlantic and the possible effects
that changes in effort may have on sea
turtles. This will be of particular
importance for monitoring the level of
take exempted in the Incidental Take
Statement (ITS) for the fishery. NMFS
will develop a methodology, using
observer and fisheries data, and other
information as available, to assess
compliance with the ITS. In addition,
further video research may be
conducted under the Sea Scallop
Research Set Aside Program to evaluate
the behavior of sea turtles around sea
scallop dredge gear and to document the
specific nature of the interaction.
Comment 13: One comment was
received regarding enforcement and
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monitoring of regulations to ensure
vessel compliance. The commenter
stated that a modification deadline
should be implemented, that the
proposed rule should mention selfreporting programs and observer
programs because reporting and recordkeeping measurements are necessary to
assess if the modification is an effective
means of reducing bycatch, and that
NMFS should ensure that vessels have
complied with the modification.
Response: The effective date for the
regulations is 30 days after publication
of the final rule in the Federal Register.
NMFS will continue to use observer
information, fishing effort data,
enforcement, and other data, as
available, to monitor the fishery and its
possible effects on sea turtles. This
includes self-reporting programs, such
as the Vessel Trip Report program that
is already in place in the fishery.
Comment 14: One commenter stated
that the rule is more appropriately
enacted under the Magnuson-Stevens
Fishery Conservation and Management
Act (Magnuson-Stevens Act), rather
than the ESA. The Atlantic sea scallop
fishery is managed by the New England
Fishery Management Council, which
has expertise in the management of the
scallop fishery and would be able to
more quickly and efficiently adjust the
rules as new information becomes
available.
Response: Implementing the proposed
regulation under the ESA rather than
the Magnuson-Stevens Act does not
prevent NMFS from responding quickly
and efficiently as new information
becomes available. In addition,
implementing this action under the ESA
does not preclude future actions from
being implemented under either the
ESA or the Magnuson-Stevens Act, as
appropriate.
Comment 15: One commenter stated
that NMFS should consider ways for
fishermen, working in conjunction with
appropriate veterinary or rescue
facilities, to bring turtles with cracked
shells to these facilities. In addition,
developing good techniques to repair
turtle shells damaged by boats and
fishing gear is a growing need to be
addressed.
Response: Currently, information
regarding the transfer of injured turtles
to appropriate rehabilitation facilities is
included in the fishery observer training
packets, including contacts for
appropriate/authorized facilities from
Maine to North Carolina. Observers are
encouraged to make these arrangements
for injured sea turtles as logistics and
practicality allow, taking into account
trip length and ability to transfer turtles
quickly and safely. It is generally
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considered prohibitive if a turtle is
taken during a multi-day trip, as a
seriously injured turtle would need to
be transferred immediately, all
resources to enable the transfer would
be voluntary/donated, the receiving
facility must be able to accept the case,
and must agree to the transfer before a
turtle is brought in. Vessels in the
limited access fleet generally take
extended trips of up to 12–20 days.
Often, based on NMFS’ experience with
trained observers, the transportation of
sea turtles to rehabilitation facilities is
logistically challenging.
Currently, an agent or employee of
NMFS while acting in the course of his/
her official duties is exempt from the
take prohibitions on endangered and
threatened sea turtles while aiding an
injured sea turtle in the marine
environment. Regulations under 50 CFR
223.206(d) require fishermen who
incidentally take turtles to return them
to the water immediately (or after
resuscitation), prohibit the landing,
offloading, or transhipping of
incidentally caught sea turtles. NMFS
will consider whether and how it is
possible under these provisions for a
fishermen to work with rehabilitation
facilities to bring sea turtles to these
facilities. Currently, fishermen should
contact the Sea Turtle Stranding and
Salvage Network to see if a network
member would meet the vessel and
retrieve the turtle at sea.
Comment 16: One commenter stated
that the draft EA strongly supports a
finding of significant impact. They state
that the EA contends that the chain mat
modification would significantly benefit
sea turtles and that the characteristics of
the geographic area, the presence of
loggerhead sea turtles, indicate the need
for an Environmental Impact Statement.
They also state that the action is highly
controversial, highly uncertain, and
creates a significant precedent.
Response: The draft EA supports a
finding of no significant impact. There
is expected to be a benefit to sea turtles
by reducing serious injury and mortality
following a take in the water column;
however, the degree of benefit is limited
given that the installation of a chain mat
would only reduce the severity of
injuries resulting from a portion of
possible takes. No unique characteristics
of the geographic area were identified.
The presence of loggerhead sea turtles
in the mid-Atlantic is not a unique
characteristic of the area. The gear
modifications are limited in geographic
area and time and are implemented in
an effort to facilitate the coexistence of
fishing activity and sea turtles. These
factors restrict the scope of the effects.
This action is not highly controversial
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given that the action is designed to
benefit sea turtles, it would have a
relatively small impact on the fishing
industry, and the industry has
petitioned NMFS for a similar action.
While there is not perfect information
available on the nature of the interaction
between sea scallop dredge gear and sea
turtles, NMFS has made reasonable
assumptions in evaluating the risks and
benefits of the proposed action. The best
available scientific information shows
that the use of the chain mat will
prevent sea turtles from entering the
dredge bag and prevent injuries ensuing
from their capture. The action also does
not set a significant precedent as gear
modifications are a commonly used tool
to reduce the severity of interactions
between fishing gear and sea turtles.
Comment 17: One comment was
received on the economic analysis of
alterative 3. The commenter stated that
the economic analysis is grossly
irrational as it does not take into
account a shift of effort in the fishery,
but rather assumes that during the
closure season fishing activity that
would ordinarily take place in the midAtlantic would simply disappear.
According to the comment, the
economic analysis must take shifting
effort into account and properly analyze
and quantify the economic impact
caused by the limited seasonal
displacement.
Response: To properly estimate
potential shifts in scallop dredge fishing
effort, an economic behavioral model,
which does not exist at this time, would
be needed. In the absence of this model,
NMFS assumed the worst case scenario
in assessing the economic impacts of a
seasonal closure. The conservative
approach is to overestimate, rather than
to underestimate, the total industry loss
due to a regulation. According to the
2003 VTR data, 208 of the 314 vessels
that were included in the analysis
fished exclusively in the mid-Atlantic
and 106 vessels fished both in the midAtlantic and the New England fishing
areas. NMFS recognizes that some of
these vessels would likely shift their
effort to other areas if the mid-Atlantic
were closed to sea scallop dredge
fishing from May 1 through November
30.
Comment 18: One comment was
received on the failure to provide data
on skate bycatch at the species level in
the experimental fishery. The barndoor
and thorny skates are included on
NMFS national ‘‘Species of Concern’’
list and the American Fisheries Society
of ‘‘Marine Species at Risk’’. The
commenter stated NMFS should lead
the way in fulfilling the Skate Fishery
Management Plan’s goals to improve the
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data-poor situation with skates by
ensuring all approved experimental
fisheries in the region record and report
skate catches by species.
Response: The sea scallop dredge
research on the chain mat modification
was conducted under a grant through
the NMFS Sea Scallop Research TAC
Set-Aside program. As such, the
experimental fishery was operating
under the Atlantic Sea Scallop Fishery
Management Plan, which requires that
vessels submit Vessel Trip Reports
(VTR) on which all bycatch species are
reported to species level whenever
possible. In addition, bycatch
information for experimental fisheries is
requested to the highest level possible.
VTR codes for skates at the species level
have existed since 2003 and NMFS has
revised the printed VTR instructions to
include species level codes for skates
although they have yet to go to print.
However, it is permissible for fishermen
to report skates as unspecified and not
at the species level. Thus, data collected
at the species level may be incomplete.
Comment 19: One commenter stated
that the information used to support the
preferred alternative is based on
assumptions and guesswork, not
scientific research and that this
information is inadequate. The
commenter stated that it is crucial to
assess the effects of turtle chains
through underwater video monitoring
prior to proposing the non-experimental
use of the chain mat. Furthermore, the
commenter states that the studies on
which the preferred alternative is based
are fatally flawed as they rely only on
on-deck observations and so only
addressed whether the chain mat could
reduce the number of sea turtles caught
in the dredge and did not address
whether the chains reduced the number
of sea turtle takes, injuries, and deaths
caused by scallop dredging.
Response: The experimental fishery
used two paired dredges, one equipped
with a standard dredge and one
equipped with a modified dredge. This
paired design is an industry standard in
gear work and is utilized to minimize
unaccountable environmental variation.
The study involved over 3000 paired
hauls, which resulted in enough
statistical power to be able to detect
differences in the turtle catches between
the modified and the unmodified
dredge. There was a statistical
difference between turtle catches in the
control and modified dredges (at alpha
- 0.05 level). NMFS recognizes that
these studies relied on on-deck
observations, and that sea turtles may be
struck by the dredge while fishing near
the bottom or while being hauled
through the water column and not
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brought on-board. Unfortunately, these
types of interactions cannot be
quantified at this time because
information on these interactions does
not exist. However, the best available
information does show that the chain
mat modification prevents most, if not
all, captures of sea turtles in the dredge
bag; therefore preventing injuries that
occur from such capture.
Comment 20: One comment was
received on the status of the loggerhead
sea turtle. The commenter stated that
the loggerhead sea turtle is no closer to
recovery now than when it was
originally listed and that the most recent
data show that the number of
loggerhead nests in Florida’s Archie
Carr National Wildlife Refuge has
dropped precipitously from 1998 to
2004.
Response: A detailed description of
the status of the species can be found in
the Environmental Assessment for this
action, while a summary is provided
here. A number of stock assessments
(TEWG, 1998,2000; NMFS SEFSC 2001;
Heppell et al., 2003) have examined the
stock status of loggerhead sea turtles in
the waters of the United States, but have
been unable to develop any reliable
estimates of absolute population size.
Due to the difficulty of conducting
comprehensive population surveys
away from nesting beaches, nesting
beach survey data are used to index the
status and trends of loggerhead sea
turtles (68 FR 53949, Sept. 15, 2003).
There are at least five western Atlantic
loggerhead subpopulations. These are
the south Florida, northern, Dry
Tortugas, Florida Panhandle, and
Yucatan subpopulations. Genetic
analyses conducted at the nesting sites
indicate that they are distinct
subpopulations (TEWG, 2000). NMFS
has concluded that the survival and
recovery of each of these nesting
subpopulations are critical to the
survival and recovery of the species.
While nesting beach data is a useful
tool for assessing sea turtle populations,
the detection of nesting trends requires
consistent data collection methods over
long periods of time (USFWS and
NMFS, 2003). In 1989, a statewide sea
turtle Index Nesting Beach Survey
(INBS) program was developed and
implemented in Florida, and similar
survey programs have been in
implemented in Georgia, South
Carolina, and North Carolina. Although
not part of the INBS program, nesting
survey data are also available for the
Yucatan Peninsula, Mexico (USFWS
and NOAA Fisheries 2003). However,
the currently available nesting data is
still too limited to indicate statistically
reliable trends for these subpopulations.
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To date, analysis of nesting data from
the INBS program through 2003 indicate
that there is no discernable trend for the
south Florida, northern, or Florida
Panhandle subpopulations (68 FR
53949, September 15, 2003). Given the
relatively short period of survey effort
for the Dry Tortugas subpopulation, no
conclusions can be made at this time on
the trend of this subpopulation. Survey
effort overall at the Yucatan nesting
beaches has been inconsistent and no
trend can be determined for this
subpopulation given the currently
available data (68 FR 53949, September
15, 2003). More reliable nesting trend
information is available from some
south Florida and northern
subpopulation nesting beaches that have
been surveyed for longer periods of
times. Using the information gathered
from these select south Florida and
northern subpopulation nesting
beaches, the Turtle Expert Working
Group concluded that the south Florida
subpopulation was increasing based on
nesting data over the last couple of
decades, and that the northern
subpopulations was stable or declining
(TEWG, 2000).
Similar to other loggerhead nesting
beaches, counts at Archie Carr National
Wildlife decreased from 2001 through
2004. Preliminary data for 2005
indicates that loggerhead nest counts at
Archie Carr increased from the 2004
counts (Florida Fish and Wildlife
Conservation Commission, pers. comm.,
2005). It should be recognized that this
data is still preliminary and further
analysis is needed. It is unknown at this
time whether the overall nest counts
represent an actual decline in the
loggerhead subpopulations or not.
Loggerhead sea turtles do exhibit a
cyclical nesting pattern such that in
some years nest counts are high while
in others they are low. Natural events,
such as the hurricanes of 2004, can also
destroy many nests and affect nesting
trends since a majority of the nests may
be destroyed in any particular year. In
addition, since nest counts are a
reflection of only one sex and age class
in the subpopulation (adult females),
using nesting trend data to make
conclusions about the status of an entire
subpopulation requires making certain
assumptions. These are that the current
impacts to mature females are
experienced to the same degree amongst
all age classes regardless of sex and/or
that the impacts that led to the current
abundance of nesting females are
affecting the current immature females
to the same extent. There is no current
evidence to support or refute these
assumptions.
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In 2001, NMFS reviewed and updated
the stock assessment for loggerhead sea
turtles of the western North Atlantic,
including information on nesting
abundance and trends. The assessment
also considered the impact of the U.S.
pelagic longline fishery with and
without the proposed changes in the
Turtle Excluder Device (TED)
regulations for the shrimp fishery using
a modified population model from
Heppell et al. (2003) to include new
estimates of the duration of life stages
and time at maturity and, unlike
Heppell et al. (2003), also considered
sex ratios other than 1:1 (NMFS SEFSC,
2001). A more detailed description of
NMFS’ assessment can be found in the
supporting documents. Given the
implementation of TED regulations to
allow larger benthic immature and
sexually mature loggerhead sea turtles
to escape from shrimp trawl gear and
given measures to increase pelagic
immature survival by 10% have been
implemented in the Highly Migratory
Species fishery, loggerhead
subpopulations in the western Atlantic
should experience positive or at least
stable growth as loggerheads in the
various stage classes mature. These
changes are unlikely to be evident in
nesting beach censuses for many years
given the late age at maturity for
loggerhead sea turtles and the normal
fluctuations in nesting.
In-water population studies to
measure abundance have also been
conducted. Maier et al. (2004) used
fishery-independent trawl data to
establish a regional index of abundance.
The study was designed to concentrate
on loggerhead sea turtles with emphasis
on the northen subpopulation, and was
conducted along the southeast coast of
the United States (Winyah Bay, South
Carolina to St. Augustine, FL) from 2000
2003. The loggerhead sea turtle was the
dominant turtle collected during the
study, with moderate levels of Kemp’s
ridley and a few green sea turtles
encountered during the study. There
was no significant difference for
loggerheads in Catch per Unit Effort
(CPUE) among the years sampled.
However, the annual mean CPUE did
increase over the study period. The
minimum rate of annual population
change could not be detected within the
four-year sampling period of the project.
During the 4 years of the study, a
disturbing trend of reduced catch rates
in the smaller size classes was noted.
Growth could account for a shift to
larger size classes, but the observed
decline in the percentages of sea turtles
in the smallest size classes may indicate
a recruitment failure. The pattern
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warrants continued observation. Maier
et al. (2004) found that a comparison of
loggerhead catch data from this study
with historical values suggests that inwater populations of loggerhead sea
turtles along the southeastern United
States appear to be larger, possibly an
order of magnitude higher than they
were 25 years ago. SEAMAP long-term
data provides further support for the
conclusion of increasing abundance of
in-water loggerhead populations with
catch rates increasing substantially
since the early 1990s (Maier et al.,
2004). This type of regional abundance
may be useful in examining long-term
trends in overall turtle population status
on a regional basis, but a number of
inherent temporal, spatial, and, perhaps,
environmental factors can affect catch
rates and need to be recognized in
developing a regional index of
abundance.
Comment 21: One commenter stated
that there were two factors requiring the
agency to reinitiate consultation. The
first factor was Dr. Heppell’s letter
addressing the existing Biological
Opinion. The second factor is the
statement ‘‘Biological resources, in
particular sea turtles, have been, are,
and will continue to be negatively
impacted by a variety of past, present,
and future activities. These cumulative
impacts may be impacting the recovery
of the species, although the extent
cannot be quantified’’ (draft EA, pg. 93).
The commenter states that this is new
information requiring reinitiation.
Response: NMFS received a letter
dated March 13, 2005 concerning the
December 2004 Opinion on the Atlantic
Sea Scallop FMP. The concerns raised
in the letter were responded to by
NMFS’ Southeast Fisheries Science
Center and were addressed in the
litigation on the December 2004
Opinion. The letter does not trigger
reinitiation. The cumulative impacts
listed in the EA are not new information
and were considered in the December
2004 Opinion. Therefore, that statement
in the EA does not trigger reinitiation of
the ESA Section 7 consultation on the
Scallop Fishery.
Classification
The rule has been determined to be
significant by the Office of Management
and Budget for the purposes of
Executive Order 12866.
NMFS prepared an initial regulatory
flexibility analysis for the proposed
rule, which was described in the
classification section of the preamble to
the proposed rule. The public comment
period ended on June 27, 2005. No
comments were received on the
economic impacts of the proposed
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action; one comment, as described
above, was received on the economic
impacts of non-preferred alternative 3
(seasonal closure). No changes were
made as a result of such comments.
NMFS has prepared a final regulatory
flexibility analysis (FRFA) that
describes the economic impact this final
rule would have on small entities. A
description of the action, why it is being
considered and the legal basis for this
action are contained at the beginning of
the preamble, in the SUMMARY, and in
the FRFA. A summary of the analysis
follows:
The fishery affected by this final rule
is the mid-Atlantic sea scallop dredge
fishery. The action requires all vessels
with a Federal Atlantic sea scallop
fishery permit, regardless of dredge size
of vessel permit category, to modify
their dredge gear when fishing south of
41° 9.0′ N. latitude, from the shoreline
to the outer boundary of the EEZ.
According to Vessel Trip Report Data for
2003, 314 vessels fished in this area
from May 1 through November 30. The
economic analysis assumes that all 314
vessels are independently owned and
operated. All 314 sea scallop dredge
vessels are considered small entities.
This final rule does not contain any
additional reporting, recordkeeping, or
other similar compliance requirements.
The FRFA considered five
alternatives. The preferred alternative
(PA), non-preferred alternatives 1–3
(NPA 1–3), and the ‘‘no action’’
alternative. The PA, NPA 1–3, and the
‘‘no action’’ alternative were analyzed in
the initial regulatory flexibility analysis
and summarized in the proposed rule
(70 FR 30660).
NMFS selected the preferred
alternative in the final rule (required the
use of chain mats on all sea scallop
dredges in the Mid-Atlantic from May
through November 30) because this
alternative would provide, with the
exception of NPA 3 (seasonal closure of
the mid-Atlantic), the most protection to
sea turtles. The agency minimized
impacts to small entities under this
alternative by limiting the rule to the
May through November time period and
limiting the spatial extent to the midAtlantic. While NPA 1 (use of chain
mats on all sea scallop dredges in the
Mid-Atlantic from May 1 through
October 15) may have had slightly
reduced economic impacts compared to
the PA, NMFS rejected NPA 1 because
this alternative would leave sea turtles
vulnerable to capture in the dredge bag
from October 15 through November 30,
a period when sea turtle distribution
and sea scallop fishing overlap in the
southern part of the fishery. While NPA
2 (use of chain mats on all large sea
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scallop dredges in the Mid-Atlantic
from May through November 30) may
have had slightly reduced economic
impacts compared to the PA, NMFS
rejected NPA 2 because this alternative
would leave sea turtles vulnerable to
capture in the dredge bag of smaller
dredges operating in this area. Sea
turtles have been documented taken in
this smaller dredge gear. NMFS rejected
NPA 3 (prohibit sea scallop dredge
fishing south of 41° 9.0′ N. lat. from May
1 through November 30) because of the
uncertainty of the extent of the area in
which interactions are occurring, the
broad extent of the closure, and the
potential displacement of effort to other
fishing areas. At this time, NMFS does
not have sufficient information to
further refine NPA 3 to limit the extent
of the closure and rejected NPA 3, in
part, because of the uncertainty
regarding the extent of the area in which
interactions between sea turtles and sea
scallop dredge gear are occurring. NPA
3 would have had the highest economic
impact.
This final rule is consistent with the
ESA and other applicable laws.
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Available at https://northflorida.fws.gov/
SeaTurtles/Turtle%20Factsheets/
loggerhead-sea-turtle-htm. 3 pp.
White, M. 2004. Observations of
loggerhead sea turtles feeding on
discarded fish catch at Argostoli,
Kefalonia. Marine Turtle Newsletter.
105:7–9.
Wynne, K. and M. Schwartz. 1999.
Guide to marine mammals and turtles of
the U.S. Atlantic and Gulf of Mexico.
Rhode Island Sea Grant. Narragansett,
RI. 115 pp.
List of Subjects in 50 CFR Parts 222 and
223
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Endangered and threatened species,
Exports, Imports.
VerDate Aug<31>2005
15:27 Aug 24, 2006
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Dated: August 18, 2006.
Samuel D. Rauch, III
Deputy Assistant Administrator for
Regulatory Programs, National Marine
Fisheries Service.
PART 222—GENERAL ENDANGERED
AND THREATENED MARINE SPECIES
For the reasons set forth in the
preamble, 50 CFR part 222 and 223 are
to be amended as follows:
1. The authority citation for part 222
continues to read as follows:
I
Authority: 16 U.S.C. 1531 et seq.; 16 U.S.C.
742a et seq.; 31 U.S.C. 9701.
2. In § 222.102, the definition of
‘‘Chain mat’’ and ‘‘Dredge or dredge
gear’’ are added in alphabetical order to
read as follows:
I
§ 222.102
Definitions.
*
*
*
*
*
Chain mat means a device designed to
be installed in a scallop dredge forward
of the sweep, as described in 50 CFR
223.206, for the purpose of excluding
sea turtles from the dredge.
*
*
*
*
*
Dredge or dredge gear, with respect to
the fishery operating under the Atlantic
Sea Scallop Fishery Management Plan,
means gear consisting of a mouth frame
attached to a holding bag constructed of
metal rings, or any other modification to
this design, that can be or is used in the
harvest of sea scallops.
*
*
*
*
*
PART 223—THREATENED MARINE
AND ANADROMOUS SPECIES
1. The authority citation for part 223
continues to read as follows:
I
Authority: 16 U.S.C. 1531–1543; subpart B,
§ 223.12 also issued under 16 U.S.C. 1361 et
seq.; 16 U.S.C. 5503(d) for § 223.206(d)(9).
2. In § 223.205, paragraph (b)(16) is
redesignated as (b)(17); paragraph
(b)(15) is revised and new paragraph
(b)(16) is added to read as follows:
I
§ 223.205
Sea turtles.
*
*
*
*
*
(b) * * *
(15) Fail to comply with the
restrictions set forth in § 223.206(d)(10)
regarding pound net leaders;
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(16) Fail to comply with the
restrictions set forth in § 223.206(d)(11)
regarding sea scallop dredges; or
*
*
*
*
*
I 3. In § 223.206, paragraph (d)
introductory text is revised and
paragraph (d)(11) is added to read as
follows:
§ 223.206 Exemptions to prohibitions
relating to sea turtles.
*
*
*
*
*
(d) Exception for incidental taking.
The prohibitions against taking in
§ 223.205(a) do not apply to the
incidental take of any member of a
threatened species of sea turtle (i.e., a
take not directed towards such member)
during fishing or scientific research
activities, to the extent that those
involved are in compliance with all
applicable requirements of paragraphs
(d)(1) through (d)(11) of this section, or
in compliance with the terms and
conditions of an incidental take permit
issued pursuant to paragraph (a)(2) of
this section.
*
*
*
*
*
(11) Restrictions applicable to sea
scallop dredges in the mid-Atlantic—(i)
Gear Modification. During the time
period of May 1 through November 30,
any vessel with a sea scallop dredge and
required to have a Federal Atlantic sea
scallop fishery permit, regardless of
dredge size or vessel permit category,
present in waters south of 41° 9.0′ N.
lat., from the shoreline to the outer
boundary of the Exclusive Economic
Zone must have on each dredge a chain
mat described as follows. The chain mat
must be composed of ‘‘tickler’’
(horizontal) chains and ‘‘vertical’’
chains that are evenly spaced and
configured in the following manner
dependent on the dredge width: Dredges
with a frame width of greater than 13 ft
(3.96 m) must use 11 vertical and 6
tickler chains; dredges with a frame
width of 11 ft to 13 ft (3.35–3.96 m)
must use 9 vertical and 5 tickler chains;
dredges with a frame width of 10 ft (3.05
m) to less than 11 ft (3.35 m) must use
7 vertical and 4 tickler chains; dredges
with a frame width of less than 10 ft
(3.05 m) must use 5 vertical and 3
tickler chains. The tickler and vertical
chains must be connected to each other
with a shackle or link at the intersection
point. If a vessel elects to
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use a different configuration, the length
of each side of the square or rectangle
formed by the intersecting chains must
be less than or equal to 14 inches (35.5
cm). The chains must be connected to
each other with a shackle or link at each
intersection point. The measurement
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15:27 Aug 24, 2006
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must be taken along the chain, with the
chain held taut, and include one shackle
or link at the intersection point and all
links in the chain up to, but excluding,
the shackle or link at the other
intersection point.
(ii) Any vessel that harvests sea
scallops in or from the waters described
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50373
in (d)(11)(i) and that is required to have
a Federal Atlantic sea scallop fishery
permit must have the chain mat
configuration installed on all dredges
for the duration of the trip.
[FR Doc. 06–7160 Filed 8–24–06; 8:45 am]
BILLING CODE 3510–22–S
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Agencies
[Federal Register Volume 71, Number 165 (Friday, August 25, 2006)]
[Rules and Regulations]
[Pages 50361-50373]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 06-7160]
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DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
50 CFR Parts 222 and 223
[Docket No. 050315074-6117-02; I.D. 022405B]
RIN 0648-AS92
Endangered and Threatened Wildlife; Sea Turtle Conservation
AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and
Atmospheric Administration (NOAA), Commerce.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: NMFS issues this final rule to require sea turtle conservation
measures for all sea scallop dredge vessels fishing south of 41[deg]
9.0' N. latitude from May 1 through November 30 each year. All vessels
with a sea scallop dredge and that are required to have a Federal
Atlantic sea scallop fishery permit, regardless of dredge size or
vessel permit category, must modify their dredge(s) when fishing south
of 41[deg] 9.0' N. latitude, from the shoreline to the outer boundary
of the Exclusive Economic Zone (EEZ). This action is necessary to help
reduce mortality and injury to endangered and threatened sea turtles in
scallop dredge gear and to conserve sea turtles listed under the
Endangered Species Act (ESA). Any incidental take of threatened sea
turtles in sea scallop dredge gear in compliance with this gear
modification requirement and all other applicable requirements will be
exempted on the ESA's prohibition against takes.
DATES: Effective September 25, 2006.
ADDRESSES: Copies of the Environmental Assessment (EA) and Regulatory
Impact Review/Final Regulatory Flexibility Analysis (RIR/FRFA) prepared
for this final rule may be obtained by writing to Ellen Keane, NMFS,
Northeast Region, One Blackburn Drive, Gloucester, MA 01930.
FOR FURTHER INFORMATION CONTACT: Ellen Keane (ph. 978-281-9300 x6526,
fax 978-281-9394, email ellen.keane@noaa.gov) or Barbara Schroeder (ph.
301-713-1401, fax 301-713-0376, email barbara.schroeder@noaa.gov).
SUPPLEMENTARY INFORMATION:
Background
All sea turtles that occur in U.S. waters are listed as either
endangered or threatened under the Endangered Species Act of 1973
(ESA). The Kemp's ridley (Lepidochelys kempii), leatherback
(Dermochelys coriacea), and hawksbill (Eretmochelys imbricata) sea
turtles are listed as endangered. The loggerhead (Caretta caretta) and
green (Chelonia mydas) sea turtles are listed as threatened, except for
breeding populations of green turtles in Florida and on the Pacific
coast of Mexico that are listed as endangered. Due to the inability to
distinguish between these populations of green turtles away from the
nesting beach, NMFS considers green sea turtles endangered wherever
they occur in U.S. waters. Kemp's ridley, hawksbill, loggerhead, and
green sea turtles are hard-shelled sea turtles. The incidental take,
both lethal and non-lethal, of loggerhead and unidentified hard-shelled
sea turtles as a result of scallop dredging has been documented in the
sea scallop dredge fishery. In addition, non-lethal takes of a green
and a Kemp's ridley sea turtle have been documented in this fishery.
This action, taken under the authority of section 4(d) of the ESA,
is necessary to provide for the conservation of threatened loggerhead
sea turtles, and will have ancillary benefits for Kemp's ridley and
green sea turtles, which have been observed taken in the sea scallop
dredge fishery, albeit to a lesser extent than loggerheads. Under the
ESA and its implementing regulations, taking endangered sea turtles -
even incidentally - is prohibited. The incidental take of endangered
species may only legally be exempted by an incidental take statement or
an incidental take permit issued pursuant to section 7 or 10 the ESA,
respectively. Existing sea turtle conservation regulations at 50 CFR
223.206(d) exempt fishing activities and scientific research from the
prohibition on takes of threatened species under certain conditions.
Any incidental take of threatened loggerhead sea turtles in sea scallop
dredge gear in compliance with this gear modification requirement and
other applicable requirements is exempted from the prohibition against
takes. Additional background information for this action is included in
the preamble to the proposed rule (70 FR 30660, May 27, 2005).
Based on the available information, NMFS has determined that the
use of a dredge modified with a chain mat will prevent most, if not
all, captures of sea turtles in the dredge bag as well as any ensuing
injuries as a result of being caught in the dredge (e.g., crushing in
the dredge bag, crushing on deck, etc.). In addition, it is possible
that this action may reduce drowning due to forced submergence
following an interaction with sea scallop dredge gear on the seafloor.
Sea turtles observed captured in the scallop dredge fishery in 2003
ranged in size from 55 107 cm (21.6 - 42.1 inches) from notch to tip
(curved carapace length). When converted to straight carapace length
(SCL) based on the formula for loggerheads provided in Teas (1993), the
size range of the loggerhead sea turtles observed captured in the
fishery in 2003 is 51-100 cm (20.1 - 39.4 inches). NMFS reviewed size
at stage data for Atlantic loggerheads. Depending on the dataset used,
the cutoff between pelagic immature and benthic immature loggerhead sea
turtles was 42-49 cm (16.5 - 19.3 inches) SCL, and the cutoff between
benthic immature and sexually mature loggerhead sea turtles was
described as 83 90 cm (32.7 - 35.4 inches) SCL (NMFS SEFSC, 2001).
Other authors define the benthic immature stage for loggerheads as 36
100 cm (14.2 - 39.4 inches) (Bass et al., 2004). Based on these
datasets and observer measurements of loggerhead sea turtles captured
in the sea scallop dredge fishery, NMFS anticipates that both benthic
immature and sexually mature loggerhead sea turtles are captured in
this fishery. NMFS recognizes that, on rare occasions, sea turtles that
interact with the modified gear may be small enough to enter the dredge
bag, and that this interaction may result in the capture of the sea
turtle in the bag. However, NMFS expects this to be a rare occurrence
based on the life history of loggerhead sea turtles and the observer
measurements.
This action requires all vessels with a sea scallop dredge and that
are required to have a Federal Atlantic sea scallop fishery permit,
regardless of dredge size or vessel permit category, to modify their
dredge(s) with a chain mat configuration when fishing south of 41[deg]
9.0' N. latitude (lat.) from the shoreline to the outer boundary of the
EEZ.
New Information
On May 27, 2005, NMFS published a proposed rule to require the
modification of sea scallop dredge gear for Federally-permitted vessels
fishing in the mid-Atlantic. Comments on this proposed action were
requested through June 27, 2005. Since the publication of
[[Page 50362]]
the proposed rule, three new pieces of information have become
available. First, the Northeast Fisheries Science Center (NEFSC) re-
examined observer records to clarify the species identity of two
individual sea turtle takes that were observed in the sea scallop
dredge fishery in 1996 and 1997. With respect to interactions between
sea scallop dredge gear and sea turtles, ``observed take'' and
``observed'' refer to interactions that were seen and documented by a
NMFS approved observer while on-watch. The 1996 take was deemed to be a
loggerhead sea turtle and the 1997 take a green sea turtle. Secondly, a
sea turtle take occurred in August 2005 in the Georges Bank sea scallop
dredge fishery. The observer was off-watch at the time the sea turtle
was taken. It is important to note that when an observer is off-watch
at the time of the take much of the information on the haul that would
otherwise be recorded will not be included in the observer's report.
This sea turtle was identified as a Kemp's ridley sea turtle and this
identification was confirmed through photographs. Lastly, a bycatch
estimate of loggerhead sea turtles captured in the 2004 mid-Atlantic
sea scallop dredge fishery became available. This assessment estimated
180 loggerhead sea turtles (CV = 0.37) to have been captured in sea
scallop dredge gear operating in the Mid-Atlantic from June 1 through
November 30.
Comments and Responses
Nine comment letters from eight different individuals or
organizations were received during the public comment period for the
proposed rule. Five commenters were generally supportive of the action
but provided comments on particular aspects of the proposed rule, and
three commenters were opposed to the proposed action. Two public
hearings were held during the comment period. One in Fairhaven,
Massachusetts on June 16, 2005, and one in Cape May, New Jersey on June
22, 2005. Two individuals provided oral comments. Both of the oral
comments were generally supportive of the proposed action. One of the
individuals also provided written comments. A complete summary of the
comments and NMFS' responses, grouped according to general subject
matter in no particular order, is provided here.
Comment 1: Four comments addressed the spatial extent of the
proposed rule. One commenter supported using a longitudinal line at
70[deg] 20' W. longitude (long.) as the eastern boundary of the rule,
one supported keeping the spatial extent as proposed as there is not
evidence that sea turtles do not use the entire region, one stated that
the spatial extent was too broad, and one urged caution when choosing a
longitude closer to shore as sea turtles are found in warmer waters
closer to the Gulf Stream. Additionally, this commenter felt that the
northern boundary did not adequately assess the potential for
interactions on Georges Bank and in the Gulf of Maine, that ``near-
shore'' areas potentially prone to warmer waters should potentially be
regulated more, and that special care should be taken for vessels to
avoid waters close to known nesting beaches during sea turtle nesting
and mating.
Response: Sea turtle species that are found off the northeastern
coast of the United States north of Cape Hatteras, North Carolina are,
in order of frequency of occurrence, loggerhead, leatherback, Kemp's
ridley, and green sea turtles (Shoop, 1980; Shoop and Kenney, 1992).
This action will provide for the conservation of threatened loggerhead
sea turtles and will have ancillary benefits for Kemp's ridley and
green sea turtles.
Loggerhead, Kemp's ridley, and green sea turtles undergo
temperature dependent seasonal migrations along the mid-Atlantic coast
(Morreale and Standora, 1998; Plotkin and Spotila, 2002). In general,
these turtles occur in waters off North Carolina year round, in the
inshore waters (i.e., bays, estuaries, and other coastal waters) of
Virginia from May through November, and in New York's inshore waters
from June through October (NMFS, 1994). All three are species are known
to occur in Massachusetts waters as far north as Cape Cod, but with the
exception of rare sightings and strandings are not known to occur in
more northern New England waters (Shoop and Kenney, 1992; Mitchell et
al., 2003). Detailed information on the distribution of sea turtles can
be found in the EA for this action.
Off the northeastern U.S., loggerhead sea turtles are commonly
sighted across the continental shelf from the shore to the shelf break
as far north as Long Island (approximately 41[deg] 9.0' N. latitude),
although further north and east sightings are sparse (CeTAP, 1982;
Shoop and Kenney, 1992; Mitchell et al., 2003). During CeTAP surveys,
loggerhead sea turtles, the most common sea turtle observed taken in
the sea scallop dredge fishery, were rarely documented north of 41[deg]
N lat (Shoop and Kenney, 1992). South of Cape Hatteras, loggerhead sea
turtles are year-round residents (Mitchell et al., 2003).
In the western Atlantic, Kemp's ridley sea turtles are found year-
round in the Gulf of Mexico and many juveniles migrate north along the
east coast in the summer (Wynne and Schwartz, 1999). Off the
northeastern U.S., inshore waters of southern New England, especially
Cape Cod Bay and Long Island Sound, appear to be developmental habitat
for juvenile Kemp's ridley and green sea turtles (Mitchell et al.,
2003; Morreale and Standora, 2005). During the summer and fall, Kemp's
ridley and green sea turtles are expected to occur predominantly in
inshore waters where the scallop fishery does not typically operate
(Lutcavage and Musick, 1985; Keinath et al., 1987; Morreale and
Standora, 1993; Spotila et al., 1998). In addition, although the
broadest extent of the western Atlantic green sea turtle's range is
from Massachusetts to Argentina, including the Gulf of Mexico and the
Caribbean, they are considered rare north of Cape Hatteras (Wynne and
Schwartz, 1999). In 1997, a green sea turtle was observed taken in the
sea scallop dredge fishery operating off of New Jersey. Based on the
identification of species taken in this fishery and the distribution of
green and Kemp's ridley sea turtles, NMFS expects the take of these
species in the sea scallop dredge fishery to be rare.
The hawksbill sea turtle is uncommon in waters of the continental
United States, preferring coral reefs. There are accounts of hawksbills
in south Florida and a number are encountered in Texas. In the north
Atlantic, small hawksbills have stranded as far north as Cape Cod,
Massachusetts. However, many of these strandings were observed after
hurricanes or offshore storms. No takes of hawksbill sea turtles have
been recorded in the northeast or mid-Atlantic fisheries covered by the
Northeast Fisheries Science Center observer program. Hawksbills are not
expected to be present in the area impacted by this action.
Interactions with sea turtles have been observed in the sea scallop
dredge fishery south of 41[deg] N. 9.0' N lat. to the Virginia/North
Carolina border. A total of 61 sea turtles have been observed taken in
the Atlantic sea scallop dredge fishery during normal fishery
operations from 1996 through October 31, 2005. Of these, 44 were
identified as loggerhead sea turtles, 1 was identified as a green sea
turtle, and 15 were hard-shelled sea turtles that could not be
positively identified. An additional 13 sea turtles were reported
captured while the observer was off-watch. These include a Kemp's
ridley sea turtle in the sea scallop dredge fishery in August 2005.
Prior to 2005, no sea turtle takes had been observed in the sea
scallop dredge fishery outside the mid-Atlantic region.
[[Page 50363]]
In the 1999 and 2000 scallop fishing years, relatively high levels of
observer coverage (22 percent - 51 percent) occurred in portions of the
Georges Bank Multispecies Closed Areas that were conditionally opened
to scallop fishing. Despite this high level of observer coverage and
operation of scallop dredge vessels in the area during June - October,
which is generally when the water could be warm enough to support sea
turtles, no sea turtles were observed captured in scallop dredge gear
in these years. From 2001 through 2004, observer coverage was low in
the Gulf of Maine (<1 percent in 2001, 2002, and 2004) and Georges Bank
regions (<1 percent in 2001, 2002, and 2003; < 2 percent from September
through November 2004 with most of the coverage occurring in November)
(Murray 2004, 2005). In August 2005, a Kemp's ridley sea turtle was
taken at approximately 40[deg] 58' N. lat./67[deg] 16' W. long. by a
dredge vessel operating on southern Georges Bank indicating that takes
in this area are possible.
Based on: (1) the known distribution of sea turtles, (2) sea
scallop dredge fishing effort, and (3) the observed take of sea turtles
in this fishery, NMFS expects the take of sea turtles by dredge vessels
operating in the New England sea scallop dredge fishery on Georges Bank
to be rare. However, the take of the Kemp's ridley sea turtle on
southern Georges Bank is evidence that takes in this area are possible.
It should be noted that this take occurred on southern Georges Bank,
south of the 41[deg] 9.0' N. lat. boundary. Although takes of sea
turtles north of this boundary are possible, NMFS expects interactions
between sea turtles and sea scallop dredge gear in this area to be
rare. This final rule requires vessels fishing south of 41[deg] 9.0' N.
lat. from the shoreline to the outer boundary of the EEZ to use the
chain mat configuration from May 1 through November 30 each year.
Mating for loggerhead sea turtles takes place in late March to
early June in the general vicinity of the nesting area, and eggs are
laid throughout the summer. In the western Atlantic, most loggerhead
sea turtles nest from North Carolina to Florida and along the Gulf
Coast of Florida, although Virginia is the northernmost extent of
loggerhead nesting on the eastern coast of the United States (DeGroot
and Shaw, 1993; USFWS 2004). Sea scallops only occur in inshore waters
in the Gulf of Maine and Canada. Therefore, NMFS does not anticipate
the overlap of sea turtles and sea scallop dredging in inshore areas
during nesting and mating season.
Comment 2: Two comments addressed the temporal extent of the
proposed rule. One commenter supported the use of November 30, the
preferred alternative, rather than October 15, as described in non-
preferred alternative 1, to better account for variability in sea
turtle migration and fishing activities. The other commenter stated
that the proposed rule is for too long a time and the modification
should be required when sea turtles are in the area (a dynamic area
management (DAM) program). The commenter explained that the DAM program
could be implemented similarly to the program currently used for right
whales and could use the observer program to report the presence of sea
turtles in the area. The commenter also stated that the use of the
turtle chains will consume more fuel, catch less scallops, and be less
efficient. The commenter believes that a DAM program would minimize
this loss of efficiency and the use of a non-renewable resource, fuel.
Response: The temporal extent of these proposed measures are based
on the time period associated with the overlap of sea turtles and the
sea scallop dredge fishery using Cape Hatteras, North Carolina as the
lower boundary. Cape Hatteras was chosen as the lower boundary as NMFS
does not anticipate any fishing south of Cape Hatteras due to a lack of
scallop resources. In general, hard-shelled sea turtles move from
offshore to inshore and/or from south to north in the spring and in the
opposite direction in the fall. These turtles occur year round in
waters off North Carolina; however, they are considered rare North of
Cape Hatteras in the winter (Mitchell et al., 2003). Hard-shelled sea
turtles occur in the inshore waters (i.e., bays, estuaries, and other
coastal waters) of Virginia from May through November, and in New
York's inshore waters from June until October (NMFS, 1994).
Interactions between the sea scallop dredge fishery and hard-
shelled sea turtles have been documented from late June to late
October, and the potential for interactions exists during May and
November due to the overlap of sea turtles and fishing distribution.
Interactions with sea turtles have been observed in the sea scallop
dredge fishery south of 41[deg] 9.0' N. lat. to the Virginia/North
Carolina border. Based on the known distribution of sea turtles, as
described in the response to Comments 1 and 2, the observed take of sea
turtles in the sea scallop dredge fishery from June through October,
and to account for variability in both sea turtle migration and fishing
activity, the final rule requires vessels to use the modified sea
scallop from May 1 through November 30 each year.
At this time, it would not be feasible to implement a DAM program
for sea turtles. The DAM program for right whales is based on
scientific aerial survey effort. These aerial surveys for right whales
are not designed to assess sea turtle distribution and, currently,
there is no aerial survey program for sea turtles. The observer program
is not the appropriate platform for looking for sea turtle aggregations
as sea turtles are often difficult to see from a vessel, the program is
not a scientific survey to assess distribution of protected species,
and observer locations are determined by many criteria and may not be
appropriate for evaluating aggregations of turtles in the mid-Atlantic.
Comment 3: One commenter stated that the proposed rule should
identify areas more prone to sea scallop dredge - sea turtle
interactions based on water temperature and known sea turtle biology.
The commenter also stated that although it is not reasonable to ask
that all scallop dredging cease during warmer months, dredging should
be restricted in shallow embayments and deeper offshore waters during
these months.
Response: During 2001-2003, sea surface temperature (SST) was found
to be significant factor influencing sea turtle bycatch rates in the
mid-Atlantic sea scallop dredge fishery. In 2001 and 2002, a higher
probability of turtle bycatch occurred after waters had warmed to 19
[deg]C and in 2003, higher probabilities occurred after waters warmed
to 22 [deg]C. These differences may reflect inter-annual variations in
SST or turtle distributions, shifting patterns in the fishery, or
interactions between random samples and statistical models (Murray,
2004). Murray (2004) found that there may be a minimal threshold above
which sea turtle bycatch is likely to occur, although this minimal
temperature threshold is likely to fluctuate from year to year. SST was
not found to be a significant predictor of sea turtle bycatch rates in
the mid-Atlantic during the 2004 fishing year (Murray, 2005).
Interactions in 2004 may have been influenced by a combination of depth
zone and SST, and the small number of takes in 2004 relative to the
number of dredge hours examined (approximately 1 take:1,000 observed
dredge hours) may have precluded the detection of a significant effect.
The rare nature of turtle interactions in 2004 made it difficult to
identify variables significantly affecting bycatch rates, and even area
and depth, selected for a best fit, were not strong predictors (Murray,
2005).
Due to the influence of temperature in 2001, 2002, and 2003
affecting sea turtle
[[Page 50364]]
bycatch rates, NMFS considered an alternative which would provide
protection to sea turtles when sea surface temperatures reached a level
at which elevated sea turtle bycatch was expected. Under the
alternative, vessels would be prohibited from fishing south of 41[deg]
9.0' N. lat. and north of 38[deg] 0.0' N. lat. from May 1 through
October 31 and south of 38[deg] 0.0' N. from May through November 30.
NMFS rejected this alternative from further analysis as it would result
in essentially the same impacts to sea turtles and the fishing industry
as a closure from May 1 through November 30 each year (see Comment 4
for a more detailed response regarding seasonal closures) and, given
the recent bycatch analysis, the relationship between elevated levels
of bycatch and SST is unclear. Requiring the chain mat modification
when sea surface temperatures reached a level at which elevated sea
turtle bycatch was expected would likely result in the same impacts as
this action. The sea scallop dredge fishery is not expected to overlap
with sea turtle distribution in shallow embayments of the mid-Atlantic
as sea scallops do not occur in shallow embayments there. Sea scallops
only occur in inshore waters in the Gulf of Maine and Canada.
Comment 4: One comment was received that supported non-preferred
alternative 3 (seasonal closure of the mid-Atlantic) to effectively
protect sea turtles from scallop dredging during the summer by removing
sea scallop dredge vessels from the times and places where sea turtles
occur. The commenter stated that this is the only alternative that can
be shown to effectively reduce loggerhead sea turtle takes and
subsequent injury and mortality, that concern about displacement of
effort adversely affecting habitat should not block protection of sea
turtles, and that economic considerations in no way argue against
alternative 3, in part because the economic analysis of alternative 3
is grossly irrational (see Comment 17).
Response: A seasonal closure of all waters south of 41[deg] 9.0' N.
lat. was considered and analyzed in the EA. This alternative would
provide the most protection to sea turtles as scallop dredge vessels
would not be in the area when sea turtles are present. Sea scallop
fishing is not distributed evenly throughout this area. In a review of
Vessel Trip Reports for 2003 and 2004, reported trips for the mid-
Atlantic (defined in Murray as approximately 41[deg]15'N/70[deg]00'W to
36[deg]06'N/70[deg]00'W) during the period June through November
occurred from approximately 75[deg] 30.0' W. long. to approximately
71[deg] W long. (Murray 2004, 2005). The commercial sea scallop fishery
in the mid-Atlantic generally operates at depths between 35 - 75 m
(memo from John Boreman to Patricia A. Kurkul, 6 December 2004).
At this time, it is not known whether sea turtles interact with sea
scallop dredge gear throughout the area in which the fleet operates in
the mid-Atlantic or if interactions are limited to certain areas and
certain times. Observer coverage has documented several trips on which
more than one sea turtle was observed taken. In 2002, out of 62
observed trips, one of the observed trips took three sea turtles and
four of the observed trips took two sea turtles. In 2003, out of 71
observed trips, one of the observed trips took four sea turtles, two of
the observed trips took three sea turtles, and three of the observed
trips took two sea turtles (Murray, 2004), and in 2004, out of 172
observed trips, one observed trip took two sea turtles (Murray, 2005).
At this time, NMFS does not know why some trips have multiple takes and
does not have sufficient evidence to refine a potential closure area
further.
A closure of the mid-Atlantic would likely result in a shift of
effort further north. A behavioral model, which does not exist at this
time, would be necessary to assess shifts in effort. In the absence of
this model, NMFS assumed the worse case scenario that vessels would
choose not to fish an alternative area. According to the 2003 VTR data,
of the 314 scallop dredge vessels that fished in the mid-Atlantic
during May through November, 208 vessels fished exclusively in the mid-
Atlantic region and 106 vessels fished in the mid-Atlantic and further
north. If, under a closure, vessels choose to relocate to fishing
grounds not affected by the closure, gear conflicts may result. As the
number of scallop vessels fishing on these grounds increases, the
vessels would be competing with other scallop vessels that have
historically fished these grounds as well as with each other. Other
gear conflicts might include the lobster fishery and, to a lesser
extent, the groundfish fishery. It is difficult to determine how much
effort would increase on Georges Bank based on a closure in the mid-
Atlantic, but if effort were to increase on Georges Bank, there could
be an increase in the bycatch of groundfish in this area.
The extent of this shift and its impacts on physical, habitat, and
biological resources in these areas cannot be quantified at this time.
In general, a shift in effort would increase impacts to habitat in the
areas outside of the mid-Atlantic and perhaps in the mid-Atlantic
during the periods it would be open to sea scallop dredge fishing.
During the closure (May through November), it is expected that there
would be beneficial impacts to the mid-Atlantic habitat. The net
impacts, and the magnitude of these impacts, to habitat are not clear.
The economic analysis for a seasonal closure in the mid-Atlantic
assumed the economically worst case scenario, that the alternative
would not result in a displacement of effort. Instead, the analysis
assumed that the vessels would not fish during the closure period (see
Comment 17 for a more detailed response regarding the economic
analysis). It is likely that some vessels will shift their fishing
effort to other areas; therefore, the economic impact will be less than
that assumed for the final EA. Due to these factors - the broad extent
of the closure area, displacement of effort, and uncertainty of the
extent of the area in which interactions are occurring - non-preferred
alternative 3 was rejected.
Comment 5: One commenter stated that all dredging should be banned
year round in the area proposed. This commenter also stated that all
longlines and purse seine fishing should be banned.
Response: As described in the response to Comment 2, sea turtle
presence varies with season. The capture of sea turtles in sea scallop
dredge gear has been documented in the mid-Atlantic from June through
October and the potential for takes exists in May and November due to
the overlap of the sea scallop dredge fishery with sea turtle
distribution. As described above, a single sea turtle take has been
documented in the sea scallop dredge fishery on southern Georges Bank
in August. As sea turtle distribution and sea scallop dredge effort are
not expected to overlap from December 1 through April 30, extending the
effective period of the rule through these months is not expected to
provide additional benefit to sea turtles. A seasonal closure of the
mid-Atlantic to sea scallop dredging is addressed in the response to
Comment 4. The comments regarding longline and purse seine fisheries
are not relevant to the proposed rule.
Comment 6: Two comments were received relating to scallop dredge
gear and operational modifications in the fishery. One commenter stated
that the rule should require modifications to the dredge frame and
cutting bar to reduce injury to sea turtles as well as modifications in
the operation of the fishery, including not setting gear if a sea
turtle is seen in wake, stopping gear at the 10-fathom mark for 30
seconds
[[Page 50365]]
during haul back, and restricting tow times to reduce drowning of sea
turtles. Another commenter stated that NMFS should consider additional
ways to reduce interactions of dredges with turtles, such as keeping
discards on board during fishing operations.
Response: NMFS is working with industry to evaluate the
effectiveness of a dredge with a modified cutting bar and bail. This
dredge was designed to reduce serious injury to sea turtles that may be
encountered on the bottom. Initial testing of the gear in Panama City,
FL showed that the gear was capable of deflecting a model turtle over
the bail. However, additional studies are necessary to assess the
effectiveness of this modification at reducing the severity of
interactions on the ocean floor and at maintaining the scallop catch.
This gear research is on-going.
It has been suggested that the discard of scallop viscera during
fishing operations may be attracting sea scallop dredge vessels to the
fishing area. White (2004) reported loggerhead sea turtles
opportunistically feeding on discards from gillnet vessels docked at a
quay in Greece and there are anecdotal reports of sea turtles
opportunistically feeding on discards in the shrimp trawl fishery. It
is unclear whether the turtles were drawn to the vessel because of the
discards or just happened to be in the same place as the vessels at the
same time. At this time, NMFS has no evidence to refute or support the
possibility that discards may be attracting sea turtles to the scallop
vessel. In addition, it is not clear what the effect would be from a
prohibition of dumping viscera. Sea turtles that may be attracted to
discarded viscera might disperse away from fishing vessels if the
practice is prohibited. Alternatively, these turtles may remain in the
fishing area and feed on natural prey in the benthos. It is not clear
that a prohibition on the discard of sea scallop viscera would reduce
the risk of interaction.
NMFS does encourage observers to collect all sea turtle carcasses
brought on board for necropsy, including an analysis of stomach/GI
samples for prey items. However, this is logistically difficult and, to
date, only one sea turtle carcass has been returned and necropsied.
Stomach and intestinal samples could not be obtained from this turtle
due to its condition.
In the draft EA for the proposed rule and the final EA, NMFS
considered an alternative that would require operational modifications
in the sea scallop dredge fishery. Although operational modifications
could provide some benefit to sea turtles, the extent of these benefits
is unclear. It would be difficult to ensure compliance and to assess
the impact of these modifications on sea turtles. Due to this
uncertainty, this alternative was rejected and not further analyzed.
Comment 7: One commenter stated that the decrease in scallop catch
would be greater than the 6.71 percent observed in the experimental
fishery. Another commenter stated that the proposed rule affords a
practical solution, that the modification could be retrofitted onto
existing scallop dredges, and that the costs of the chains and losses
of scallops are a reasonable measure for insuring the conservation of
sea turtles stocks as well as the viability of the industry.
Response: During the experimental fishery to test the chain mat
configuration, scallop catches were variable from vessel to vessel and
trip to trip, with differences ranging from -30.88 percent to 7.28
percent (average -6.71 percent). The study authors and NMFS gear
technologists anticipate that the difference in catch will decrease as
industry becomes more familiar with the chain configuration. However,
if vessels with a loss of catch do not choose not to offset this loss
with an increase in effort, there is the potential for loss of revenue.
Comment 8: Two comments were received on the species considered in
the proposed rule. One commenter stated that the proposed rule should
consider other species of sea turtles found in the geographic area of
the proposed measures. One commenter stated that Kemp's ridley, green,
and leatherback sea turtle may be captured by scallop dredges and
trawls as a number of individuals captured in the fishery are not
identified to species. In addition, the commenter stated that the
unobserved take reported as a leatherback in the experimental fishery
should be considered valid. The commenter believes that all four
species are likely to be taken in the fishery; therefore, consultation
should be reinitiated and take of all four species considered.
Response: Since the publication of the proposed rule, two new
pieces of information have become available indicating that Kemp's
ridley and green sea turtles are vulnerable to capture in sea scallop
dredge gear. Two sea turtles were observed taken in the sea scallop
dredge fishery from 1996 through 1997. For the initial and subsequent
Biological Opinions on the Atlantic Sea Scallop Fishery Management
Plan, these sea turtles were considered unidentified hard shelled
species based on discussions with some of the staff of the NEFSC.
Subsequent to the publication of the proposed rule, the records
maintained by the Fisheries Sampling Branch, NEFSC were re-examined
and, on August 23, 2005, the NEFSC indicated that the 1996 sea turtle
should be considered a loggerhead and the 1997 sea turtle should be
considered a green based on written documentation provided by the
observer and the observer's experience. Both of these observed takes
occurred in the mid-Atlantic sea scallop dredge fishery.
Sea turtle species that are found off the northeastern coast of the
United States north of Cape Hatteras, North Carolina are, in order of
frequency of occurrence, loggerhead, leatherback, Kemp's ridley, and
green sea turtles (Shoop and Kenney, 1992). Additional information on
the distribution of loggerhead, Kemp's ridley, hawksbill and green sea
turtles is found in comment 1 and the EA for this action. This action
will provide for the conservation of threatened loggerhead sea turtles.
Based on information received subsequent to the publication to the
proposed rule, it is also expected to have ancillary benefits for
Kemp's ridley and green sea turtles, which have been observed taken in
the sea scallop dredge fishery, albeit to a lesser extent than
loggerheads.
While the sea scallop dredge fishery does overlap with leatherback
sea turtle distribution, NMFS has no confirmed report that this gear
interacts with leatherback sea turtles, either in the water column or
on the bottom. During the experimental testing of the modified sea
scallop dredge gear, two unobserved interactions were reported. One of
the unobserved interactions was reported by the fisherman as a
loggerhead sea turtle. The second unobserved interaction was reported
by the fisherman as a leatherback. NEFSC's general protocol for
confirmation of at-sea species identification requires that the species
be considered as unknown unless either the observer is experienced in
sea turtle identification and has confidence in the identification, or
the observer is inexperienced and has provided supporting information
(i.e., photos, tissue samples). As far as the NEFSC is aware, the
fishermen reporting the take of the leatherback and the take of the
loggerhead have not been trained nor are they experienced in
identifying sea turtle species. No supporting materials, such as photos
or tissue samples, have been provided. Therefore, based on the
confirmation protocol for at-sea species identification, the NEFSC
considers the species identification of these takes to be ``unknown
turtle species''. Leatherback sea turtles are predominantly a pelagic
species and
[[Page 50366]]
feed on jellyfish. Since scallop dredge gear operates on the bottom,
leatherback sea turtles are less likely to encounter this gear compared
with loggerhead sea turtles. Given their large size, prey and habitat
preferences, leatherback sea turtles are not expected to be struck by
the gear operating on the bottom or caught in sea scallop dredge gear.
In the unlikely event that a leatherback sea turtle were to interact
with sea scallop dredge gear, the chain mat configuration would prevent
it from entering the dredge bag, and would prevent subsequent injuries
that might ensue from such capture.
As provided in 50 CFR 402.16, reinitiation of formal consultation
is required where discretionary Federal agency involvement or control
over the action has been retained and if: (1) the amount or extent of
incidental take is exceeded; (2) new information reveals effects of the
agency action that affect listed species or critical habitat in a
manner or to an extent not considered in the previous opinion; (3) the
agency action is subsequently modified in a manner that causes an
effect to listed species or critical habitat not considered in the
previous opinion; or (4) a new species is listed or critical habitat
designated that may be affected by the action. This action does not
trigger reinitiation.
Although this action does not trigger reinitiation of consultation,
NMFS reinitiated ESA section 7 consultation on the Scallop FMP on
November 1, 2005. Observer coverage of the Atlantic sea scallop fishery
in the 2005 fishing year and a review of past observer records has
revealed new information on the fishery in relation to its effects on
ESA-listed sea turtles. This information includes the take of five
loggerhead sea turtles in the sea scallop trawl fishery, the take of a
Kemp's ridley on southern Georges Bank, and confirmation from the NEFSC
that a turtle observed taken in scallop dredge gear in 1997 should be
considered a green sea turtle.
Comment 9: Several comments were received on the nature of the
interaction. One commenter expressed concerns that the tests on the
chain mats have been limited and that additional research is needed to
determine how ``dredge bars'' injure and kill sea turtles. A second
commenter stated that it is unknown what happens when turtles interact
with the chain mat modified dredge and that there is a significant risk
that the chains do not reduce take, but simply change the nature of the
interaction. This commenter also stated that, without video monitoring,
it is possible that the rule may prevent real attempts to address the
problem by hiding what is happening from view and that, to be
effective, video work must be done in a systematic manner prior to
proposing the modifications as a regulation. The commenter stated that
the proposed action may do very little to reduce mortality and injury
to sea turtles and that NMFS admits that the chain mat configuration
would not lessen the number of sea turtles taken, injured, or killed by
the dredge on the sea floor. The commenter stated that it stands to
reason that a significant number of the sea turtles that are seriously
injured and end up dying are caught on the sea floor as the dredge is
towed on the sea floor for far more time than it is hauled up to the
boat through the water column. Lastly, the commenter states that the EA
does not appear to analyze how often injuries occur from interactions
with the dredge in the water column, but the implication is that even
without the turtle chains, such interactions are unlikely. Another
commenter stated that it is unlikely that strikes by scallop dredges
with turtle excluder devices represent a significant source of
mortality or injury while fishing on bottom. The commenter stated that
while fishing, dredges are towed at a relatively slow speed and that it
appears that most injuries result from negative interactions caused
when turtles enter the dredge, remain submerged, or are brought on
deck.
Response: NMFS recognizes the uncertainty regarding whether sea
turtles interact with sea scallop dredges as the dredge is dragged
along the bottom, as the dredge is hauled back, or both. It takes
approximately 1 minute to set a dredge and approximately 10 minutes to
haul back, dump the catch, and reset the gear. For the remainder of the
haul, the gear is on the bottom. However, it is not known where sea
turtles are encountering the gear. It is likely that sea turtles are
interacting with the gear both in the water column and on the bottom.
Sea turtles have been observed in the area in which sea scallop gear
operates and they have been seen near scallop vessels when they are
fishing or hauling gear. In addition, sea turtles are known to forage
and rest on the sea floor as part of their normal behavior. The
condition of sea turtles observed taken in the sea scallop dredge
fishery ranges from alive with no apparent injuries to alive and
injured to fresh dead. As described below, NMFS believes that
interactions between sea turtles and sea scallop dredge gear that occur
on the bottom are likely to result in serious injury to the sea turtle.
Based on this assumption, NMFS believes that the unharmed/slightly
injured turtles observed captured in the sea scallop dredge bag follow
an interaction with sea scallop dredge gear in the water column.
Data do not exist on the percentage of sea turtles interacting with
the chain mat-modified gear that will be unharmed, sustain minor
injuries, or sustain serious injuries that will result in death or
failure to reproduce. However, there are several assumptions that can
be made to assess the degree of interaction. With the chain mat
installed over the opening to the dredge bag, it is reasonable to
assume that sea turtles, which would otherwise enter the dredge bag,
will instead come into contact with the chain mat at least. NMFS
recognizes that this modification may not reduce the number of sea
turtles interacting with sea scallop dredge gear, but it is reasonable
to assume that the modification will reduce mortality and the severity
of injury following interactions that occur in the water column. After
an interaction in the water column, severe injuries to sea turtles
following capture in a dredge bag without the chain mat configuration
likely result from crushing by debris in the dredge bag, dumping of the
turtle on the vessel's deck, or crushing them with falling gear. NMFS
does not have information on the proportion of takes occurring in the
water column. However, preventing the turtles from entering the dredge
bag will prevent injuries resulting from such capture and likely result
in a non-serious interaction following an encounter in the water
column.
With the chain mat in place, it is reasonable to assume that the
sea turtles on the sea floor would still interact with the gear, but
that the nature of the interaction would be different. With the
modified gear, the sea turtles may still be hit by the leading edge of
the frame and cutting bar and would likely be forced down to the sea
floor rather then swept into the dredge bag. Since the turtles are not
being swept into the bag, they could be run over by the dredge bag and
club stick. At this point, the turtle will have likely already been hit
and run over by the cutting bar and the leading edge of the dredge
frame, which constitutes a substantial weight. In 2005, NMFS worked
with industry to test a dredge with a modified cutting bar and bail
designed to minimize the severity of impacts to turtles that may be
encountered on the bottom. A standard New Bedford style dredge was used
as a control, and both dredges were equipped with the chain mat
configuration, although the purpose of the project was not to study the
chain mats. The project used turtle carcasses
[[Page 50367]]
and model turtles to simulate a worse case scenario of a dredge
overtaking a sea turtle lying on the bottom. During the study, the
turtle carcasses were observed lodged in front of the cutting bar and
pushed along, eventually going under the cutting bar and getting caught
on the chain mat. The model turtle was deployed on one tow with the
modified dredge. During this tow, the model turtle was deflected over
the bail of the modified dredge, indicating that this type of
modification might be effective at reducing the severity of encounters
on the bottom. It is important to note that the project was limited in
that behavioral responses of a live turtle encountering a dredge could
not be assessed. The video from the study did show that it is possible
that sea turtles encountering the dredge on the bottom may become
caught on the chains after being hit by the leading bar of the dredge.
However, this follows the turtle being struck by the leading edge of
the dredge during which it is likely to have sustained serious
injuries. NMFS has made the conservative assumption that a turtle in a
bottom interaction sustains serious injuries on the bottom regardless
of whether the chain mat is used. Under this conservative assumption,
there would not be a benefit from the chain mat for bottom
interactions. This assumption, however, may be too conservative in that
it is possible that turtles in a bottom interaction may only receive
minor injuries. In the unlikely scenario of a turtle receiving only
minor injuries following a bottom interaction, the chain mat
modification would prevent serious injuries that result from capture in
the dredge bag (i.e., injuries from debris in the bag, forced
submergence, dropping on deck, or crushing by the dredge). A detailed
description the assumptions made and the assessment of the interactions
can be found in the EA on this action.
NMFS recognizes that the interactions between sea turtles and sea
scallop dredges are likely to continue and may not be observed from on
deck. In 2004 and 2005, NMFS conducted video research to document the
nature of the interaction between sea turtles and sea scallop dredge
gear. Approximately 80 hours of video were collected and reviewed. No
sea turtles were documented. Further video work may be conducted under
the Sea Scallop Research Set Aside Program. It is evident from these
studies that using video to document the specific nature of sea turtle-
sea scallop dredge interactions, in general, and sea turtle-chain mat
interactions specifically, is logistically difficult. Due to the low
number of interactions between sea turtles and sea scallop dredge gear
(approximately 1 take per 1,000 observed dredge hours in 2004), it will
be difficult to obtain sufficient video documentation of sea turtle
behavior to allow a thorough analysis of the types of interactions that
may occur. Waiting for such video documentation would result in an
extended delay in the use of a chain-mat modified dredge. As this
modification is expected to provide a net benefit to sea turtles, NMFS
believes it is important to move forward without delay.
In addition, NMFS will monitor scallop fishing effort for
significant increases or decreases in effort in the mid-Atlantic and
the possible effects that changes in effort may have on sea turtles.
NMFS is continuing to investigate modifications of the gear that may
reduce the effects of interactions which occur on the ocean bottom.
Comment 10: Two comments were received on the level of take in the
sea scallop fishery. One commenter stated that NMFS has repeatedly
failed to recognize the extent and impact of the scallop fishery's
impact on threatened and endangered species, that the anticipated take
level in the proposed rule does not incorporate the supposed benefits
of the chain mat requirement, and that these benefits should be
reflected in a reduction of allowed take. If the action is not expected
to reduce take and injury, then further efforts are needed. In
addition, the commenter urged NMFS to expeditiously provide information
on genetic samples taken in this fishery. The second commenter stated
that the proposed rule's estimated take was too low because the 2004
Biological Opinion did not include a number of ways that dredges can
take sea turtles (i.e., being hauled up on top of the gear, being
wedged in the forward parts of the dredge frame, being held against the
dredge by the pressure of the flow of water, or by being run over by
the dredge and chain bag).
Response: According to the December 2004 Biological Opinion, the
agency anticipates that up to 749 sea turtles will be taken each year
without the chain mat configuration in place, and that up to 479 of
these are expected to sustain injuries leading to death or failure to
reproduce. As described in the proposed rule (70 FR 30660) and in the
response to Comment 9, up to 749 turtles may still interact with the
gear. However, the chain mat configuration is expected to prevent
serious injury leading to death or failure to reproduce caused by
dumping of the turtles on the vessel's deck and crushing them by
falling gear or debris in the bag following an interaction in the water
column. At this time, the proportion of sea turtles interacting with
the dredge gear in the water column cannot be quantified. In 2004 and
2005, NMFS worked with industry to conduct approximately 80 hours of
video research to document the nature of the interaction between sea
turtles and sea scallop dredge gear and to investigate the behavior of
sea turtles around sea scallop dredges, but no sea turtles were
documented.
Tissue samples for genetics samples have been collected from
loggerhead sea turtles captured in the sea scallop dredge fishery, and
the results are still pending. NMFS is working to obtain these results
as soon as is reasonably possible.
The bycatch estimate completed by the NEFSC, and the anticipated
take level in the 2004 Biological Opinion, included any interaction
occurring during an on-watch haul, that was not moderately or severely
decomposed upon capture. This includes sea turtles hauled up on top of
the gear, wedged in the forward parts of the dredge frame, or held
against the dredge by the pressure of the flow of water as observed
from on deck. Sea turtles may interact with sea turtle dredge gear in
the water column or on the sea bottom and not be brought to the
surface. These interactions cannot be quantified at this time.
Comment 11: A number of comments were received on the need for
additional research including monitoring the degree of progress made in
reducing sea turtle bycatch, modifications to the dredge frame and
cutting bar, video footage to document the interactions, and observer
coverage on scallop dredge vessels and underwater video cameras on the
dredge to evaluate the effectiveness of the chain mats. One commenter
also expressed concern that the tests on the chain mats have been very
limited, and urged NMFS to provide extensive observer coverage to
determine the effectiveness of the chain mats.
Response: As described above, NMFS will continue to monitor the
take of sea turtles and the effectiveness of this regulation in the sea
scallop dredge fishery through observer coverage, fishing effort data,
and other data, as available. NMFS is currently working with industry
to research the effectiveness of a dredge with a modified bail and
cutting bar at reducing the severity of sea turtle interactions that
are occurring on the sea floor bottom and retaining sea scallop catch.
This research is described above. Video work conducted in 2004 by the
NEFSC and industry did not
[[Page 50368]]
document any interactions between sea turtles and sea scallop dredge
gear, but was successful in devising a methodology to video in front of
sea scallop dredges. In 2005, approximately 73 hours of video work was
conducted to document the nature of the interaction between sea turtles
and sea scallop dredges and to investigate the behavior of sea turtles
around sea scallop dredges. No sea turtles were documented.
Comment 12: One commenter stated that the proposed action could
have profound adverse effects on efforts to protect loggerhead sea
turtles and thus on loggerhead turtle populations. The commenter
claimed that without video monitoring, no one will know how many
loggerhead turtles were taken, injured, and killed underwater, an
accurate estimate of sea turtle takes would be impossible, and neither
individuals nor the agency would be able to assess whether these takes
may exceed the December 2004 incidental take statement. Another
commenter expressed concerns that the chain mat modified dredge may
contribute to underestimates of sea turtle capture by preventing
injured and dead turtles from being brought on deck.
Response: NMFS recognizes that interactions between sea scallop
dredge gear and sea turtles are likely to occur and that these
interactions may not be observed from on deck. As described above, NMFS
will continue to use observer information, fishing effort data, and
other data, as available, to monitor the fishery and its possible
effects on sea turtles. NMFS will use observer data to continue to
evaluate the take of sea turtles in other parts of the dredge (i.e.,
the forward parts of the frame and on top of the gear). In addition,
observer coverage may provide information on the effectiveness of the
chain mat modification. NMFS will monitor scallop fishing effort for
significant increases or decreases in effort in the mid-Atlantic and
the possible effects that changes in effort may have on sea turtles.
This will be of particular importance for monitoring the level of take
exempted in the Incidental Take Statement (ITS) for the fishery. NMFS
will develop a methodology, using observer and fisheries data, and
other information as available, to assess compliance with the ITS. In
addition, further video research may be conducted under the Sea Scallop
Research Set Aside Program to evaluate the behavior of sea turtles
around sea scallop dredge gear and to document the specific nature of
the interaction.
Comment 13: One comment was received regarding enforcement and
monitoring of regulations to ensure vessel compliance. The commenter
stated that a modification deadline should be implemented, that the
proposed rule should mention self-reporting programs and observer
programs because reporting and record-keeping measurements are
necessary to assess if the modification is an effective means of
reducing bycatch, and that NMFS should ensure that vessels have
complied with the modification.
Response: The effective date for the regulations is 30 days after
publication of the final rule in the Federal Register. NMFS will
continue to use observer information, fishing effort data, enforcement,
and other data, as available, to monitor the fishery and its possible
effects on sea turtles. This includes self-reporting programs, such as
the Vessel Trip Report program that is already in place in the fishery.
Comment 14: One commenter stated that the rule is more
appropriately enacted under the Magnuson-Stevens Fishery Conservation
and Management Act (Magnuson-Stevens Act), rather than the ESA. The
Atlantic sea scallop fishery is managed by the New England Fishery
Management Council, which has expertise in the management of the
scallop fishery and would be able to more quickly and efficiently
adjust the rules as new information becomes available.
Response: Implementing the proposed regulation under the ESA rather
than the Magnuson-Stevens Act does not prevent NMFS from responding
quickly and efficiently as new information becomes available. In
addition, implementing this action under the ESA does not preclude
future actions from being implemented under either the ESA or the
Magnuson-Stevens Act, as appropriate.
Comment 15: One commenter stated that NMFS should consider ways for
fishermen, working in conjunction with appropriate veterinary or rescue
facilities, to bring turtles with cracked shells to these facilities.
In addition, developing good techniques to repair turtle shells damaged
by boats and fishing gear is a growing need to be addressed.
Response: Currently, information regarding the transfer of injured
turtles to appropriate rehabilitation facilities is included in the
fishery observer training packets, including contacts for appropriate/
authorized facilities from Maine to North Carolina. Observers are
encouraged to make these arrangements for injured sea turtles as
logistics and practicality allow, taking into account trip length and
ability to transfer turtles quickly and safely. It is generally
considered prohibitive if a turtle is taken during a multi-day trip, as
a seriously injured turtle would need to be transferred immediately,
all resources to enable the transfer would be voluntary/donated, the
receiving facility must be able to accept the case, and must agree to
the transfer before a turtle is brought in. Vessels in the limited
access fleet generally take extended trips of up to 12-20 days. Often,
based on NMFS' experience with trained observers, the transportation of
sea turtles to rehabilitation facilities is logistically challenging.
Currently, an agent or employee of NMFS while acting in the course
of his/her official duties is exempt from the take prohibitions on
endangered and threatened sea turtles while aiding an injured sea
turtle in the marine environment. Regulations under 50 CFR 223.206(d)
require fishermen who incidentally take turtles to return them to the
water immediately (or after resuscitation), prohibit the landing,
offloading, or transhipping of incidentally caught sea turtles. NMFS
will consider whether and how it is possible under these provisions for
a fishermen to work with rehabilitation facilities to bring sea turtles
to these facilities. Currently, fishermen should contact the Sea Turtle
Stranding and Salvage Network to see if a network member would meet the
vessel and retrieve the turtle at sea.
Comment 16: One commenter stated that the draft EA strongly
supports a finding of significant impact. They state that the EA
contends that the chain mat modification would significantly benefit
sea turtles and that the characteristics of the geographic area, the
presence of loggerhead sea turtles, indicate the need for an
Environmental Impact Statement. They also state that the action is
highly controversial, highly uncertain, and creates a significant
precedent.
Response: The draft EA supports a finding of no significant impact.
There is expected to be a benefit to sea turtles by reducing serious
injury and mortality following a take in the water column; however, the
degree of benefit is limited given that the installation of a chain mat
would only reduce the severity of injuries resulting from a portion of
possible takes. No unique characteristics of the geographic area were
identified. The presence of loggerhead sea turtles in the mid-Atlantic
is not a unique characteristic of the area. The gear modifications are
limited in geographic area and time and are implemented in an effort to
facilitate the coexistence of fishing activity and sea turtles. These
factors restrict the scope of the effects. This action is not highly
controversial
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given that the action is designed to benefit sea turtles, it would have
a relatively small impact on the fishing industry, and the industry has
petitioned NMFS for a similar action.
While there is not perfect information available on the nature of
the interaction between sea scallop dredge gear and sea turtles, NMFS
has made reasonable assumptions in evaluating the risks and benefits of
the proposed action. The best available scientific information shows
that the use of the chain mat will prevent sea turtles from entering
the dredge bag and prevent injuries ensuing from their capture. The
action also does not set a significant precedent as gear modifications
are a commonly used tool to reduce the severity of interactions between
fishing gear and sea turtles.
Comment 17: One comment was received on the economic analysis of
alterative 3. The commenter stated that the economic analysis is
grossly irrational as it does not take into account a shift of effort
in the fishery, but rather assumes that during the closure season
fishing activity that would ordinarily take place in the mid-Atlantic
would simply disappear. According to the comment, the economic analysis
must take shifting effort into account and properly analyze and
quantify the economic impact caused by the limited seasonal
displacement.
Response: To properly estimate potential shifts in scallop dredge
fishing effort, an economic behavioral model, which does not exist at
this time, would be needed. In the absence of this model, NMFS assumed
the worst case scenario in assessing the economic impacts of a seasonal
closure. The conservative approach is to overestimate, rather than to
underestimate, the total industry loss due to a regulation. According
to the 2003 VTR data, 208 of the 314 vessels that were included in the
analysis fished exclusively in the mid-Atlantic and 106 vessels fished
both in the mid-Atlantic and the New England fishing areas. NMFS
recognizes that some of these vessels would likely shift their effort
to other areas if the mid-Atlantic were closed to sea scallop dredge
fishing from May 1 through November 30.
Comment 18: One comment was received on the failure to provide data
on skate bycatch at the species level in the experimental fishery. The
barndoor and thorny skates are included on NMFS national ``Species of
Concern'' list and the American Fisheries Society of ``Marine Species
at Risk''. The commenter stated NMFS should lead the way in fulfilling
the Skate Fishery Management Plan's goals to improve the data-poor
situation with skates by ensuring all approved experimental fisheries
in the region record and report skate catches by species.
Response: The sea scallop dredge research on the chain mat
modification was conducted under a grant through the NMFS Sea Scallop
Research TAC Set-Aside program. As such, the experimental fishery was
operating under the Atlantic Sea Scallop Fishery Management Plan, which
requires that vessels submit Vessel Trip Reports (VTR) on which all
bycatch species are rep