Small Takes of Marine Mammals Incidental to Specified Activities; Movement of Barges Through the Beaufort Sea Between West Dock and Cape Simpson or Point Lonely, Alaska, 45740-45744 [E7-16011]
Download as PDF
45740
Federal Register / Vol. 72, No. 157 / Wednesday, August 15, 2007 / Notices
16/DEIS in November 2007. The
Council and its Scientific and Statistical
Committee will review the draft
Snapper-Grouper Amendment 16/DEIS
at the December 2007 Council meeting.
If the Council approves the document,
public review will take place beginning
in January 2008. A comment period on
the DEIS is planned, which will include
public hearings to receive comments.
Availability of the DEIS, the dates of the
public comment period, and
information about the public hearings
will be announced in the Federal
Register and in local news media.
Authority: 16 U.S.C. 1801 et seq.
Dated: August 10, 2007.
Emily Menashes,
Acting Director, Office of Sustainable
Fisheries, National Marine Fisheries Service.
[FR Doc. E7–16010 Filed 8–14–07; 8:45 am]
BILLING CODE 3510–22–S
DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric
Administration
RIN 0648–XB57
Small Takes of Marine Mammals
Incidental to Specified Activities;
Movement of Barges Through the
Beaufort Sea Between West Dock and
Cape Simpson or Point Lonely, Alaska
National Marine Fisheries
Service (NMFS), National Oceanic and
Atmospheric Administration (NOAA),
Commerce.
ACTION: Notice of issuance of an
incidental harassment authorization.
ebenthall on PROD1PC69 with NOTICES
AGENCY:
SUMMARY: In accordance with
regulations implementing the Marine
Mammal Protection Act (MMPA) as
amended, notification is hereby given
that an Incidental Harassment
Authorization (IHA) to take small
numbers of marine mammals, by
harassment, incidental to conducting a
barging operation within the U.S.
Beaufort Sea has been issued to FEX
L.P. (FEX) for a period of 1 year.
DATES: Effective from August 9, 2007
through August 8, 2008.
ADDRESSES: The authorization and
application containing a list of the
references used in this document may
be obtained by writing to P. Michael
Payne, Chief, Permits, Conservation and
Education Division, Office of Protected
Resources, National Marine Fisheries
Service, 1315 East-West Highway, Silver
Spring, MD 20910–3225, or by
telephoning the contact listed here. The
application is also available at: https://
www.nmfs.noaa.gov/pr/permits/
VerDate Aug<31>2005
15:00 Aug 14, 2007
Jkt 211001
incidental.htm. Documents cited in this
notice may be viewed, by appointment,
during regular business hours, at this
address.
of the comment period, NMFS must
either issue or deny the authorization.
FOR FURTHER INFORMATION CONTACT:
On April 26, 2007, NMFS received an
application from FEX to take several
species of marine mammals incidental
to the movement of two tugs towing
barges in the U.S. Beaufort Sea. Marine
barges would be used to either resupply
or demobilize from their ongoing
drilling activities on the Northwest
National Petroleum Reserve-Alaska Oil
and Gas Leases. For a resupply
operation, consumables, fuel, and
essential pad construction equipment
would be marine lifted from West Dock
(Prudhoe Bay) to the Cape Simpson
operational staging area, where it would
be stored in preparation of the 2007–
2008 winter exploration season. A
detailed description of the barging
activities is provided in the June 7,
2007, Federal Register notice (72 FR
31550) and is not repeated here.
Shane Guan, Office of Protected
Resources, NMFS, (301) 713–2289, ext.
137, or Brad Smith, Alaska Region,
NMFS, (907) 271–3023.
SUPPLEMENTARY INFORMATION:
Background
Sections 101(a)(5)(A) and (D) of the
MMPA (16 U.S.C. 1361 et seq.) direct
the Secretary of Commerce to allow,
upon request, the incidental, but not
intentional, taking of small numbers of
marine mammals by U.S. citizens who
engage in a specified activity (other than
commercial fishing) within a specified
geographical region if certain findings
are made and either regulations are
issued or, if the taking is limited to
harassment, a notice of a proposed
authorization is provided to the public
for review.
An authorization shall be granted if
NMFS finds that the taking will have a
negligible impact on the species or
stock(s), will not have an unmitigable
adverse impact on the availability of the
species or stock(s) for subsistence uses,
and that the permissible methods of
taking and requirements pertaining to
the mitigation, monitoring and reporting
of such takings are set forth. NMFS has
defined ‘‘negligible impact’’ in 50 CFR
216.103 as ’’* * * an impact resulting
from the specified activity that cannot
be reasonably expected to, and is not
reasonably likely to, adversely affect the
species or stock through effects on
annual rates of recruitment or survival.’’
Section 101(a)(5)(D) of the MMPA
established an expedited process by
which citizens of the United States can
apply for an authorization to
incidentally take small numbers of
marine mammals by harassment. Except
with respect to certain activities not
pertinent here, the MMPA defines
‘‘harassment’’ as:
any act of pursuit, torment, or annoyance
which (i) has the potential to injure a marine
mammal or marine mammal stock in the wild
[Level A harassment]; or (ii) has the potential
to disturb a marine mammal or marine
mammal stock in the wild by causing
disruption of behavioral patterns, including,
but not limited to, migration, breathing,
nursing, breeding, feeding, or sheltering
[Level B harassment].
Section 101(a)(5)(D) establishes a 45–
day time limit for NMFS review of an
application followed by a 30–day public
notice and comment period on any
proposed authorizations for the
incidental harassment of marine
mammals. Within 45 days of the close
PO 00000
Frm 00018
Fmt 4703
Sfmt 4703
Summary of Request
Description of Marine Mammals
Affected by the Activity
The Beaufort Sea supports many
marine mammals under NMFS
jurisdiction, including Western Arctic
bowhead whales (Balaena mysticetus),
Eastern North Pacific gray whale
(Eschrichius robustus), Beaufort Sea and
Eastern Chuchi Sea stocks of beluga
whales (Delphinapterus leucas), ringed
seals (Phoca hispida), bearded seals
(Erignathus barbatus) and spotted seals
(Phoca largha). Only the bowhead
whale is listed as endangered under the
Endangered Species Act (ESA) and
designated as ‘‘depleted’’ under the
MMPA. The Western Arctic stock of
bowhead whales has the largest
population size among all 5 stocks of
this species (Angliss and Outlaw, 2007).
A brief description of the distribution,
movement patterns, and current status
of these species can be found in the FEX
application. More detailed descriptions
can be found in NMFS Stock
Assessment Reports (SARs). Please refer
to those documents for more
information on these species. The SARs
can be downloaded electronically from:
https://www.nmfs.noaa.gov/pr/pdfs/sars/
ak2006.pdf. The FEX application is also
available on-line (see ADDRESSES).
Comments and Responses
A notice of receipt and request for 30–
day public comment on the application
and proposed authorization was
published on June 7, 2007 (72 FR
31550). During the 30–day public
comment period, NMFS received
comments from the Marine Mammal
Commission (the Commission), the
E:\FR\FM\15AUN1.SGM
15AUN1
ebenthall on PROD1PC69 with NOTICES
Federal Register / Vol. 72, No. 157 / Wednesday, August 15, 2007 / Notices
North Slope Borough (NSB), and a
private citizen.
Comment 1: The Commission
recommends issuance of the IHA
provided that
(1) All reasonable measures be taken
to ensure the least practicable impact on
the subject species, and
(2) The required mitigation and
monitoring activities (i.e., the use of
native advisors, the comprehensive
training of all marine mammal
observers, and on-board monitoring
throughout the transit operations) are
carried out as described in NMFS’ June
7, 2007, Federal Register notice (72 FR
32550) and the application.
Response: NMFS agrees with the
Commission’s recommendation and has
incorporated these mitigation and
monitoring measures in the IHA.
In its comments, the Commission
commends FEX for seeking
authorization to take marine mammals
incidental to the proposed activities and
for consulting with Alaska Native
groups whose subsistence use could be
affected.
Comment 2: A private citizen is
concerned that barges may kill whales
and recommends that barges only go out
when the sea is calm and the vessels can
be safely maneuvered to avoid hitting
anything.
Response: NMFS does not believe that
these barges moving at a speed of 4—5
knots would cause any marine mammal
strikes. In addition, marine mammal
observers (MMOs) will be placed on
each vessel for marine mammal
monitoring during the barging activities.
Therefore, as stated in this document,
no Level A harassment or mortality will
occur as a result of this barging activity
in the U.S. Beaufort Sea.
Comment 3: The NSB inquires about
the number of barges that would be
involved, and the number of trips that
the barges would make.
Response: As stated in the June 7,
2007, Federal Register notice (72 FR
31550), approximately 2 tugs and 2
barges would be involved in the
proposed activity. There will be a total
of up to 16 barge trips expected for the
2007 activity.
Comment 4: The NSB states that it is
unacceptable for estimates of potential
harassment of marine mammals to be
based on marine observer results from
two previous years of data, especially
when one of the two years encountered
no marine mammals. The NSB further
states that the lack of data for one of
those years shows that the data has the
potential to be extremely variable.
Therefore, NSB recommends that the
potential effects from the barging
operations should be calculated in the
VerDate Aug<31>2005
15:00 Aug 14, 2007
Jkt 211001
same manner in which effects are
calculated for seismic and drilling
activities and sound radii should be
determined from barges both under load
and not under load, as well as from
barges with propellers in different
conditions. And that the estimated
mammal densities should then be
applied to these radii to estimate take.
Response: As stated in the previous
Federal Register notice (72 FR 31550,
June 7, 2007) the number of marine
mammals that may be taken as a result
of the tug/barging operation is
unpredictable since there is a lack of
abundance estimate data for these
species within the transit route.
Therefore, the marine mammal sighting
data during the 2005 and 2006 barging
operations were used to proximate the
estimated take, as stated in the June 7,
2007, Federal Register notice (72 FR
31550). NMFS considered this to be the
best available data to be used in
estimation of marine mammal takes.
The NSB is mistaken when stating that
one of the two years encountered no
marine mammals. In fact, as described
in the June 7, 2007 Federal Register
notice (72 FR 31550), marine mammals
were sighted during both 2005 and 2006
barging operations. Numbers and
behavioral reaction of these marine
mammals sighted in the 2005 and 2006
barging operations were provided in
detail in the previous Federal Register
notice (FR 72 31550, June 7, 2007).
Given that marine mammal abundance
data is limited for the proposed project
area, NMFS believes that using the
sighting data from the previous barging
activities, which occurred in the same
area as the proposed action, is the best
way to estimate numbers of Level B
harassment of marine mammals that
could be incidentally taken by barging
activities.
Comment 5: The NSB states that the
statement made in the previous Federal
Register notice (FR 72 31550, June 7,
2007) that studies at Northstar found no
evidence of development activities
affecting the availability of seals for
subsistence hunters is misleading,
because NMFS acknowledges that the
Northstar vicinity is outside the areas
used by subsistence hunters. The NSB
states that there is little to no
information available about the effects
that the proposed barging would have
on subsistence hunting.
Response: The Northstar example in
the previous Federal Register notice (FR
72 31550, June 7, 2007) is based on
research in the vicinity of Northstar that
long-term oil and gas activities did not
show any significant impacts on the
distribution and abundance of ringed
seals (Williams et al., 2001; 2006).
PO 00000
Frm 00019
Fmt 4703
Sfmt 4703
45741
NMFS believes that such evidence is a
good indication that the proposed
barging operations, which would occur
in a smaller scale for a much shorter
period, would not have an unmitigable
effect on subsistence uses of marine
mammals. In addition, FEX and the
Alaska Eskimo Whaling Commission
(AEWC) signed the Conflict Avoidance
Agreement (CAA) on June 11, 2007. FEX
will continue to work with Alaskan
Natives to ensure that the proposed
barging operations would not have
unmitigable impacts to subsistence use
of marine mammal species and stocks.
Comment 6: The NSB requests that
FEX conduct sound signature tests
(SSTs). The NSB states that last year’s
test indicated that pushing heavy barge
loads produced greater sound levels
than unloaded barges. The NSB states
that they understand that FEX will not
be loading the barges to full capacity,
the information gleaned from tests of
barges running at even half capacity
would be valuable. The NSB further
requests that SSTs should measure
down to the 120 dB level. The NSB
states that using a model to estimate the
120 dB level is not appropriate because
last year the models underestimated
distances by 2 - 3 times.
Response: FEX states that they met
with representative of the NSB on June
21, 2007, and discussed the SST. FEX
explained that while the report from
JASCO Research noted that the barges
were ‘‘partially loaded,’’ in fact they
were fully loaded to meet the draft
restrictions of getting into Cape
Simpson. FEX states that the one time
a vessel was listed as fully loaded, it
was actually fully loaded by volume,
not by weight. FEX further states that
the reason for the noise increase was
due to a damaged propellor.FEX states
that it has discussed the SST with the
NSB regarding the SST, and that some
good data on vessel noise were collected
in 2006 for the same barges that would
be used for the proposed operations.
NMFS agrees with FEX that since
extensive acoustic measures were
obtained from these barges a year
earlier, there is no need to conduct
additional measurement.
Potential Effects of Tug/Barge
Operations and Associated Activities
on Marine Mammals
Level B harassment of marine
mammals may result from the noise
generated by the operation of towing
vessels during barge movement. The
physical presence of the tugs and barges
could also lead to disturbance of marine
mammals by visual or other cues. The
potential for collisions between vessels
and whales will be essentially zero due
E:\FR\FM\15AUN1.SGM
15AUN1
45742
Federal Register / Vol. 72, No. 157 / Wednesday, August 15, 2007 / Notices
ebenthall on PROD1PC69 with NOTICES
to the slow tow speed (approximately 5
knots) and visual monitoring by onboard MMOs.
Marine mammal species with the
highest likelihood of being harassed
during the tug and barge movements
are: beluga whales, ringed seals, spotted
seals, and bearded seals.
Bowhead whales are not expected to
be encountered in more than very small
numbers during the planned period of
time for the tug/barge movement
because the most of them will be on
their summer feeding grounds in the
eastern Beaufort Sea and Amundsen
Gulf of the Canadian waters (Fraker and
Bockstoce, 1980; Shelden and Rugh,
1995).
A few transitory whales may be
encountered during the transits. Most
summering gray whales congregate in
the northern Bering Sea, particularly off
St. Lawrence Island and in the Chirikov
Basin (Moore et al., 2000), and in the
southern Chukchi Sea. In August 2001,
Williams and Coltrane (2002) reported a
single sighting of a gray whale near the
Northstar production facility, indicating
that small numbers do travel through
the waters offshore from the Prudhoe
Bay region during some summers,
however, given their rare occurrence in
the eastern portion of the Beaufort Sea
in summer, no more than a few are
expected during the summer and early
fall.
Beluga whales occur in the Beaufort
Sea during the summer, but are
expected to be found near the pack ice
edge north of the proposed movement
route. Depending on seasonal ice
conditions, it is possible that belugas
may be encountered during the transits.
Based on past surveys, ringed seals
should represent the vast majority of
marine mammals encountered during
the transits. Ringed seals are expected to
be present all along the tug/barge transit
routes. There is the possibility that
bearded and spotted seals would also be
taken by Level B harassment during
transit. Spotted seals may be present in
the West Dock/Prudhoe Bay area, but it
is likely that they may be closer to
shore.
Numbers of Marine Mammals Expected
To Be Taken
The number of marine mammals that
may be taken as a result of the tug/
barging operation is unpredictable since
there is a lack of abundance estimate
data for these species within the transit
route. However, based on prior barging
activities in 2005 and 2006, it is
expected that a small number of marine
mammals could be exposed to barging
noise levels at 120 dB re 1 microPa and
above.
VerDate Aug<31>2005
15:00 Aug 14, 2007
Jkt 211001
Based on the fact that bowhead
whales, gray whales, and beluga whales
were all observed during the 2005
operations (although no cetaceans were
observed during 2006), harassment of
cetaceans is possible by the 2007
planned barging operations. Gray
whales in 2005 were observed near Pt.
Barrow, outside the West Dock/Cape
Simpson operating lane, during periods
the vessels traveled to Elson Lagoon to
avoid foul weather. No gray whales have
been observed between West Dock and
Cape Simpson, and are not expected to
be encountered unless weather
conditions dictate the safety need of the
vessels anchoring at Elson Lagoon.
Beluga distribution is difficult to
predict. Sightings are always possible,
especially if the pack ice is nearby.
The barging travel route between West
Dock and Cape Simpson approximately
follows the 7.5–m (25–ft) isobath. This
nearshore depth zone represents the
southern edge of the bowhead fall
migration route. Aerial surveys
conducted by Treacy (2002) between
1982 and 2001 found bowheads
migrating in water this shallow in only
5 of the 20 years of survey (25 percent).
Thus, given the shallow water barging
travel route, and the inter-annual
differences in whale use of these waters,
the number of whale sightings expected
to be encountered might vary from 0 (as
in 2006) to 9 (in 2005).
Some of the whales observed in 2005
may have briefly occurred within the
120–dB sonification zone (l km or 0.62
mi radius), therefore, Level B
harassment of bowhead whales is
possible. However, given the shallow
water travel route, the low whale use of
this shallow water area, the presence of
marine mammal observers onboard the
barges to detect whales early and help
direct the barge away from the whales,
the relatively short distances to the 120–
dB isopleths, especially for the half the
time the vessel are traveling unloaded,
and based on cetacean encountering
rates during the 2005 barding activity,
NMFS expects that at maximum 9
bowhead whales, 8 beluga whales, and
4 gray whales could be exposed to
sound levels greater than 120 dB during
the 2007 barging season. These take
numbers would represent
approximately 0.09 percent of the
Western Arctic bowhead whales
(population estimated at 10,545), 0.02
percent of the Beaufort Sea beluga
whales (population estimated at 39,258)
or 0.21 percent of the Eastern Chukchi
Sea beluga (population estimated at
3,710), and 0.02 percent of the Eastern
North Pacific gray whales (population
estimated at 18,178).
PO 00000
Frm 00020
Fmt 4703
Sfmt 4703
During the 2005 and 2006 barging
season, 2,419 seals representing three
species (ringed, spotted, and bearded
seals) were recorded. Approximately 90
percent of these animals were ringed
seals.
In 2006, reactions were recorded for
1,020 of the ringed seal sightings. Of
these, 48 percent (490) had no reaction,
37 percent (381) reacted mildly, and 15
percent (148) more strongly and showed
startling behavior. The percentage of
ringed seals that reacted strongly is very
similar to the 17 percent recorded in
2005.
Of the 23 spotted seal sightings for
which reactions were recorded in the
2006 barging season, 30 percent (9)
showed behavioral changes.
Eighteen (24 percent) of the 75
unidentified phocids and 2 (7 percent)
of 28 bearded seals sighted showed
behavioral reactions as a result of the
2006 barging activity.
Based on the 2005 and 2006 barging
activities, NMFS estimates that
approximately 530 ringed seals, 10
spotted seals, 2 bearded seals, and 9
unidentified phocids could be taken by
Level B harassment as a result of the
2007 barging activity. These numbers
represent less than 0.02, 0.02, and
0.0008 percent of ringed, spotted, and
bearded seals in the proposed barging
route, respectively. The population
estimates for these animals are
approximately 249,000, 59,214, and
250,000–300,000 for ringed, spotted,
and bearded seals, respectively.
Effects on Subsistence Needs
Barrow residents are the primary
subsistence users in the activity area.
The subsistence harvest during winter
and spring is primarily ringed seals, but
during the open-water period both
ringed and bearded seals are taken.
Barrow hunters may hunt year round;
however, in more recent years most of
the harvest has been in the summer
during open water instead of the more
difficult hunting of seals at holes and
lairs (Mclaren, 1958; Nelson, 1969). The
Barrow fall bowhead whaling grounds,
in some years, takes in the Cape
Simpson and Point Lonely areas.
The most important area for Nuiqsut
hunters is off the Colville River Delta in
Harrison Bay, between Fish Creek and
Pingok Island. Seal hunting occurs in
this area by snow machine before spring
break-up and by boat during summer.
Subsistence patterns are reflected in
harvest data collected in 1992 where
Nuiqsut hunters harvested 22 of 24
ringed seals and all 16 bearded seals
during the open water season from July
to October (Fuller and George, 1997).
Harvest data for 1994 and 1995 show 17
E:\FR\FM\15AUN1.SGM
15AUN1
Federal Register / Vol. 72, No. 157 / Wednesday, August 15, 2007 / Notices
ebenthall on PROD1PC69 with NOTICES
of 23 ringed seals were taken from June
to August, while there was no record of
bearded seals being harvested during
these years (Brower and Opie, 1997).
Due to the transient and temporary
nature of the barge operations, impacts
on these seals are not expected to have
an unmitigable adverse impact on
subsistence uses of ringed and bearded
seals because: (1) transient operations
would temporarily displace relatively
few seals; (2) displaced seals would
likely move only a short distance and
remain in the area for potential harvest
by native hunters; (3) studies at the
Northstar development found no
evidence of the development activities
affecting the availability of seals for
subsistence hunters; however, the
Northstar vicinity is outside the areas
used by subsistence hunters (Williams
et al., 2001; 2006); and (4) the area
where barge operations would be
conducted is small compared to the
large Beaufort Sea subsistence hunting
area associated with the extremely wide
distribution of ringed seals.
In order to further minimize any effect
of barge operations on the availability of
seals for subsistence, the tug boat
owners/operators will follow U.S. Coast
Guard rules and regulations near coastal
water, therefore avoiding hunters and
the locations of any seals being hunted
in the activity area, whenever possible.
The barging, as scheduled, would be
completed before the westward
migration of bowhead whales in the fall
and the associated subsistence activities
by the local whalers. Finally, the travel
route occurs west of Cross Island
(Nuiqsut fall bowhead camp) and east of
Barrow, therefore it does not pass by
any of the whaling base camps.
In addition, FEX and the AEWC
signed the CAA on June 11, 2007. FEX
will continue to maintain interactive
dialogue to resolve conflicts and to
notify communities of any changes in
the operations.
Mitigation, Monitoring, and Reporting
As in 2005 and 2006, FEX will
conduct a marine mammal monitoring
program as part of the 2007 program.
This program will place an MMO
onboard each vessel to conduct
continuous monitoring for marine
mammals. The MMOs will be trained by
a qualified marine mammal biologist
and be approved by NMFS.
The observers will scan the area
around tug/barge with 7 x 50 reticule
binoculars during the daylight hours,
and document the presence,
distribution, behavior, and reaction of
marine mammals sighted from projectassociated vessels. The primary purpose
of the marine mammal monitoring
VerDate Aug<31>2005
15:00 Aug 14, 2007
Jkt 211001
program is to monitor the reaction of
marine mammals to the presence of the
vessels, and to detect early any whales
occurring in the barge path thereby
allowing the vessel captain time to
avoid a close approach to the animals.
Reports for each roundtrip will be
prepared and provided to NMFS and
AEWC at the end of each trip. If a
coordination center is opened by other
North Slope operators and operated
during FEX’s monitoring operations,
marine mammals trip sighting reports
will be provided to that location.
A report documenting and analyzing
any harassment or other ‘‘takes’’ of
marine mammals that occur as part of
this monitoring program will be
provided to NMFS within 90 days of
completion of the monitoring activities.
Copies will be provided to other
qualified interested parties. This report
will provide dates and locations of all
barge movements and other operational
activities, weather conditions, dates and
locations of any activities related to
monitoring the effects on marine
mammals, and the methods, results, and
interpretation of all monitoring
activities, including numbers of each
species observed, location (distance) of
animals relative to the barges, direction
of movement of all individuals, and
description of any observed changes or
modifications in behavior.
ESA Consultation
The effects of oil and gas exploration
activities in the U.S. Beaufort Sea on
listed species, which includes barging
transportation activity, were analyzed as
part of a consultation on oil and gas
leasing and exploration activities in the
Beaufort Sea, Alaska, and authorization
of incidental takes under the MMPA. A
biological opinion on these activities
was issued in 2001, and updated in
2006. The only species listed under the
ESA that might be affected during these
activities are bowhead whales. The
effects of this IHA on bowhead whales
has been compared with the analysis
contained in the 2006 biological
opinion. NMFS has determined that the
effects of the current activity is not
likely to jeopardize the existence of
ESA-listed marine mammal species, and
are consistent with the findings of that
biological opinion. Accordingly, NMFS
has issued an Incidental Take Statement
under section 7 of the ESA.
National Environmental Policy Act
(NEPA)
On February 5, 1999 (64 FR 5789), the
Environmental Protection Agency (EPA)
noted the availability of a Final
Environmental Impact Statement (Final
EIS) prepared by the U.S. Army Corps
PO 00000
Frm 00021
Fmt 4703
Sfmt 4703
45743
of Engineers under NEPA on Beaufort
Sea oil and gas development at
Northstar. NMFS was a cooperating
agency on the preparation of the Draft
and Final EISs, and subsequently, on
May 18, 2000, adopted the Corps’ Final
EIS as its own document. That Final EIS
described impacts to marine mammals
from Northstar construction activities,
which included vessel traffic similar to
the currently proposed action by FEX.
No additional NEPA analysis is required
for the following reasons: (1) The
barging activity discussed in the Final
EIS is not substantially different from
the proposed action by FEX; and (2) no
significant new scientific information
had been identified that alters the
affected environment.
Conclusions
NMFS has determined that the impact
of conducting a short-term barging
operation between West Dock, Prudhoe
Bay and Cape Simpson or Point Lonely,
in the U.S. Beaufort and associated
activities will result, at worst, in a
temporary modification in behavior by a
small number of certain species of
whales and pinnipeds. While behavioral
modifications may be made by these
species to avoid the resultant noise or
visual cues from the barging operation,
this behavioral change is expected to
have a negligible impact on the annual
rate of survival and recruitment of
marine mammal stocks. In addition, no
take by injury and/or death is
anticipated, and there is no potential for
temporary or permanent hearing
impairment as a result of the activities.
No rookeries, mating grounds, areas of
concentrated feeding, or other areas of
special significance for marine
mammals occur within or near the
relocation route.
The principal measures undertaken to
ensure that the barging operation will
not have an unmitigable adverse impact
on subsistence activities is a CAA
between FEX and the AEWC, a Plan of
Cooperation, and an operation schedule
that will not permit barging operations
during the traditional bowhead whaling
season.
Determinations
NMFS has issued an IHA for the
harassment of marine mammals
incidental to FEX conducting a barging
operation from West Dock, Prudhoe Bay
Alaska, through the U.S. Beaufort Sea to
Cape Simpson or Point Lonely. This
IHA is contingent upon incorporation of
the previously mentioned mitigation,
monitoring, and reporting requirements.
NMFS has determined that this activity
would result in the harassment of small
numbers of bowhead whales, gray
E:\FR\FM\15AUN1.SGM
15AUN1
45744
Federal Register / Vol. 72, No. 157 / Wednesday, August 15, 2007 / Notices
whales, beluga whales, ringed seals,
bearded seals and spotted seals; would
have a negligible impact on these
marine mammal stocks; and would not
have an unmitigable adverse impact on
the availability of marine mammal
stocks for subsistence.
Dated: August 9, 2007.
James H. Lecky,
Director, Office of Protected Resources,
National Marine Fisheries Service.
[FR Doc. E7–16011 Filed 8–14–07; 8:45 am]
BILLING CODE 3510–22–S
DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric
Administration
[I.D. 050107H]
Incidental Takes of Marine Mammals
During Specified Activities; Seismic
Testing and Calibration in the Northern
Gulf of Mexico
National Marine Fisheries
Service (NMFS), National Oceanic and
Atmospheric Administration (NOAA),
Commerce.
ACTION: Notice; issuance of incidental
harassment authorization.
ebenthall on PROD1PC69 with NOTICES
AGENCY:
SUMMARY: In accordance with the
Marine Mammal Protection Act
(MMPA) regulations, notification is
hereby given that NMFS has issued an
Incidental Harassment Authorization
(IHA) to the Lamont-Doherty Earth
Observatory (L-DEO) to take small
numbers of marine mammals, by Level
B Harassment only, incidental to
conducting an acoustic calibration and
seismic testing program in the northern
Gulf of Mexico.
DATES: Effective from July 31, 2007
through July 30, 2008.
ADDRESSES: A copy of the IHA, the
application, and the associated
Environmental Assessment (EA) and
Supplemental EA are available by
writing to Michael Payne, Chief,
Permits, Conservation, and Education
Division, Office of Protected Resources,
National Marine Fisheries Service, 1315
East-West Highway, Silver Spring, MD
20910–3225, or by telephoning the
contact listed here. A copy of the
application containing a list of
references used in this document may
be obtained by writing to this address,
by telephoning the contact listed here
(FOR FURTHER INFORMATION CONTACT) or
online at: https://www.nmfs.noaa.gov/pr/
permits/incidental.htm. Documents
cited in this notice may be viewed, by
appointment, during regular business
hours, at the aforementioned address.
VerDate Aug<31>2005
15:00 Aug 14, 2007
Jkt 211001
Jolie
Harrison, Office of Protected Resources,
NMFS, (301) 713–2289, ext 166.
FOR FURTHER INFORMATION CONTACT:
SUPPLEMENTARY INFORMATION:
Background
Sections 101(a)(5)(A) and (D) of the
MMPA (16 U.S.C. 1361 et seq.) direct
the Secretary of Commerce to allow,
upon request, the incidental, but not
intentional, taking of marine mammals
by U.S. citizens who engage in a
specified activity (other than
commercial fishing) within a specified
geographical region if certain findings
are made and either regulations are
issued or, if the taking is limited to
harassment, a notice of a proposed
authorization is provided to the public
for review.
Authorization shall be granted if
NMFS finds that the taking will have a
negligible impact on the species or
stock(s), will not have an unmitigable
adverse impact on the availability of the
species or stock(s) for subsistence uses,
and that the permissible methods of
taking and requirements pertaining to
the mitigation, monitoring and reporting
of such takings are set forth. NMFS has
defined ‘‘negligible impact’’ in 50 CFR
216.103 as ’’* * * an impact resulting
from the specified activity that cannot
be reasonably expected to, and is not
reasonably likely to, adversely affect the
species or stock through effects on
annual rates of recruitment or survival.’’
Section 101(a)(5)(D) of the MMPA
established an expedited process by
which citizens of the United States can
apply for an authorization to
incidentally take small numbers of
marine mammals by harassment. Except
with respect to certain activities not
pertinent here, the MMPA defines
‘‘harassment’’ as:
any act of pursuit, torment, or annoyance
which (i) has the potential to injure a marine
mammal or marine mammal stock in the wild
[Level A harassment]; or (ii) has the potential
to disturb a marine mammal or marine
mammal stock in the wild by causing
disruption of behavioral patterns, including,
but not limited to, migration, breathing,
nursing, breeding, feeding, or sheltering
[Level B harassment].
Section 101(a)(5)(D) establishes a 45day time limit for NMFS review of an
application followed by a 30-day public
notice and comment period on any
proposed authorizations for the
incidental harassment of marine
mammals. Within 45 days of the close
of the comment period, NMFS must
either issue or deny issuance of the
authorization.
PO 00000
Frm 00022
Fmt 4703
Sfmt 4703
Summary of Request
On June 2, 2006, NMFS received an
application from L-DEO for the taking,
by Level B harassment, of several
species of marine mammals incidental
to conducting, with research funding
from the National Science Foundation
(NSF), an acoustic calibration and
seismic testing program in the northern
Gulf of Mexico in Fall, 2006. This
project will be conducted with L-DEO’s
new seismic vessel, the R/V Marcus G
Langseth (Langseth), which will deploy
different configurations of airguns and a
different bottom-mapping sonar than
used previously by L-DEO. L-DEO
requests that it be issued an IHA
allowing Level B Harassment takes of
marine mammals incidental to the
planned seismic surveys in the Gulf of
Mexico. A detailed description of the
purpose of the calibration and testing
program was outlined in the NMFS
notice of the proposed IHA (71 FR
58790, October 5, 2006).
Description of the Specified Activity
The Langseth is expected to depart
Mobile, AL in July, 2007 (at the earliest)
and will transit to the survey area in the
northern Gulf of Mexico. The survey
will encompass an area between 24°N.
and 31°N. and between 83°W. and
96°W., which is within the Exclusive
Economic Zone (EEZ) of the U.S.A. The
study will consist of three phases: (1) an
initial testing/shakedown phase, (2)
measurements of the sounds produced
by various airgun arrays to be used by
the Langseth (calibration), and (3) a
three-dimensional (3D) seismic testing
phase. The entire survey, calibration
and testing included, will take
approximately 25 days and include
approximately 1420 km (174 hours) of
airgun operation. Measurements will be
made during seismic operations in three
categories of water depth: shallow (<100
m or <328 ft), intermediate/slope (100–
1000 m or 328–3281 ft), and deep
(>1000 m or >3281 ft). The vessel will
transit to Galveston after the study is
completed. The exact dates of the
activities will depend on logistics and
weather conditions.
The full airgun array on the Langseth
consists of 36 airguns, with a total
discharge volume of 6600 in3. The array
is made up of four identical linear
arrays or strings, with 10 airguns on
each string. For each operating string,
nine airguns will be fired
simultaneously, while the tenth is kept
in reserve as a spare, to be turned on in
case of failure of another airgun. The
calibration phase will use the full 36airgun array and subsets thereof. The
subsets will consist of either 1 string (9
E:\FR\FM\15AUN1.SGM
15AUN1
Agencies
[Federal Register Volume 72, Number 157 (Wednesday, August 15, 2007)]
[Notices]
[Pages 45740-45744]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-16011]
-----------------------------------------------------------------------
DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
RIN 0648-XB57
Small Takes of Marine Mammals Incidental to Specified Activities;
Movement of Barges Through the Beaufort Sea Between West Dock and Cape
Simpson or Point Lonely, Alaska
AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and
Atmospheric Administration (NOAA), Commerce.
ACTION: Notice of issuance of an incidental harassment authorization.
-----------------------------------------------------------------------
SUMMARY: In accordance with regulations implementing the Marine Mammal
Protection Act (MMPA) as amended, notification is hereby given that an
Incidental Harassment Authorization (IHA) to take small numbers of
marine mammals, by harassment, incidental to conducting a barging
operation within the U.S. Beaufort Sea has been issued to FEX L.P.
(FEX) for a period of 1 year.
DATES: Effective from August 9, 2007 through August 8, 2008.
ADDRESSES: The authorization and application containing a list of the
references used in this document may be obtained by writing to P.
Michael Payne, Chief, Permits, Conservation and Education Division,
Office of Protected Resources, National Marine Fisheries Service, 1315
East-West Highway, Silver Spring, MD 20910-3225, or by telephoning the
contact listed here. The application is also available at: https://
www.nmfs.noaa.gov/pr/permits/incidental.htm. Documents cited in this
notice may be viewed, by appointment, during regular business hours, at
this address.
FOR FURTHER INFORMATION CONTACT: Shane Guan, Office of Protected
Resources, NMFS, (301) 713-2289, ext. 137, or Brad Smith, Alaska
Region, NMFS, (907) 271-3023.
SUPPLEMENTARY INFORMATION:
Background
Sections 101(a)(5)(A) and (D) of the MMPA (16 U.S.C. 1361 et seq.)
direct the Secretary of Commerce to allow, upon request, the
incidental, but not intentional, taking of small numbers of marine
mammals by U.S. citizens who engage in a specified activity (other than
commercial fishing) within a specified geographical region if certain
findings are made and either regulations are issued or, if the taking
is limited to harassment, a notice of a proposed authorization is
provided to the public for review.
An authorization shall be granted if NMFS finds that the taking
will have a negligible impact on the species or stock(s), will not have
an unmitigable adverse impact on the availability of the species or
stock(s) for subsistence uses, and that the permissible methods of
taking and requirements pertaining to the mitigation, monitoring and
reporting of such takings are set forth. NMFS has defined ``negligible
impact'' in 50 CFR 216.103 as ''* * * an impact resulting from the
specified activity that cannot be reasonably expected to, and is not
reasonably likely to, adversely affect the species or stock through
effects on annual rates of recruitment or survival.''
Section 101(a)(5)(D) of the MMPA established an expedited process
by which citizens of the United States can apply for an authorization
to incidentally take small numbers of marine mammals by harassment.
Except with respect to certain activities not pertinent here, the MMPA
defines ``harassment'' as:
any act of pursuit, torment, or annoyance which (i) has the
potential to injure a marine mammal or marine mammal stock in the
wild [Level A harassment]; or (ii) has the potential to disturb a
marine mammal or marine mammal stock in the wild by causing
disruption of behavioral patterns, including, but not limited to,
migration, breathing, nursing, breeding, feeding, or sheltering
[Level B harassment].
Section 101(a)(5)(D) establishes a 45-day time limit for NMFS
review of an application followed by a 30-day public notice and comment
period on any proposed authorizations for the incidental harassment of
marine mammals. Within 45 days of the close of the comment period, NMFS
must either issue or deny the authorization.
Summary of Request
On April 26, 2007, NMFS received an application from FEX to take
several species of marine mammals incidental to the movement of two
tugs towing barges in the U.S. Beaufort Sea. Marine barges would be
used to either resupply or demobilize from their ongoing drilling
activities on the Northwest National Petroleum Reserve-Alaska Oil and
Gas Leases. For a resupply operation, consumables, fuel, and essential
pad construction equipment would be marine lifted from West Dock
(Prudhoe Bay) to the Cape Simpson operational staging area, where it
would be stored in preparation of the 2007-2008 winter exploration
season. A detailed description of the barging activities is provided in
the June 7, 2007, Federal Register notice (72 FR 31550) and is not
repeated here.
Description of Marine Mammals Affected by the Activity
The Beaufort Sea supports many marine mammals under NMFS
jurisdiction, including Western Arctic bowhead whales (Balaena
mysticetus), Eastern North Pacific gray whale (Eschrichius robustus),
Beaufort Sea and Eastern Chuchi Sea stocks of beluga whales
(Delphinapterus leucas), ringed seals (Phoca hispida), bearded seals
(Erignathus barbatus) and spotted seals (Phoca largha). Only the
bowhead whale is listed as endangered under the Endangered Species Act
(ESA) and designated as ``depleted'' under the MMPA. The Western Arctic
stock of bowhead whales has the largest population size among all 5
stocks of this species (Angliss and Outlaw, 2007). A brief description
of the distribution, movement patterns, and current status of these
species can be found in the FEX application. More detailed descriptions
can be found in NMFS Stock Assessment Reports (SARs). Please refer to
those documents for more information on these species. The SARs can be
downloaded electronically from: https://www.nmfs.noaa.gov/pr/pdfs/sars/
ak2006.pdf. The FEX application is also available on-line (see
ADDRESSES).
Comments and Responses
A notice of receipt and request for 30-day public comment on the
application and proposed authorization was published on June 7, 2007
(72 FR 31550). During the 30-day public comment period, NMFS received
comments from the Marine Mammal Commission (the Commission), the
[[Page 45741]]
North Slope Borough (NSB), and a private citizen.
Comment 1: The Commission recommends issuance of the IHA provided
that
(1) All reasonable measures be taken to ensure the least
practicable impact on the subject species, and
(2) The required mitigation and monitoring activities (i.e., the
use of native advisors, the comprehensive training of all marine mammal
observers, and on-board monitoring throughout the transit operations)
are carried out as described in NMFS' June 7, 2007, Federal Register
notice (72 FR 32550) and the application.
Response: NMFS agrees with the Commission's recommendation and has
incorporated these mitigation and monitoring measures in the IHA.
In its comments, the Commission commends FEX for seeking
authorization to take marine mammals incidental to the proposed
activities and for consulting with Alaska Native groups whose
subsistence use could be affected.
Comment 2: A private citizen is concerned that barges may kill
whales and recommends that barges only go out when the sea is calm and
the vessels can be safely maneuvered to avoid hitting anything.
Response: NMFS does not believe that these barges moving at a speed
of 4--5 knots would cause any marine mammal strikes. In addition,
marine mammal observers (MMOs) will be placed on each vessel for marine
mammal monitoring during the barging activities. Therefore, as stated
in this document, no Level A harassment or mortality will occur as a
result of this barging activity in the U.S. Beaufort Sea.
Comment 3: The NSB inquires about the number of barges that would
be involved, and the number of trips that the barges would make.
Response: As stated in the June 7, 2007, Federal Register notice
(72 FR 31550), approximately 2 tugs and 2 barges would be involved in
the proposed activity. There will be a total of up to 16 barge trips
expected for the 2007 activity.
Comment 4: The NSB states that it is unacceptable for estimates of
potential harassment of marine mammals to be based on marine observer
results from two previous years of data, especially when one of the two
years encountered no marine mammals. The NSB further states that the
lack of data for one of those years shows that the data has the
potential to be extremely variable. Therefore, NSB recommends that the
potential effects from the barging operations should be calculated in
the same manner in which effects are calculated for seismic and
drilling activities and sound radii should be determined from barges
both under load and not under load, as well as from barges with
propellers in different conditions. And that the estimated mammal
densities should then be applied to these radii to estimate take.
Response: As stated in the previous Federal Register notice (72 FR
31550, June 7, 2007) the number of marine mammals that may be taken as
a result of the tug/barging operation is unpredictable since there is a
lack of abundance estimate data for these species within the transit
route. Therefore, the marine mammal sighting data during the 2005 and
2006 barging operations were used to proximate the estimated take, as
stated in the June 7, 2007, Federal Register notice (72 FR 31550). NMFS
considered this to be the best available data to be used in estimation
of marine mammal takes. The NSB is mistaken when stating that one of
the two years encountered no marine mammals. In fact, as described in
the June 7, 2007 Federal Register notice (72 FR 31550), marine mammals
were sighted during both 2005 and 2006 barging operations. Numbers and
behavioral reaction of these marine mammals sighted in the 2005 and
2006 barging operations were provided in detail in the previous Federal
Register notice (FR 72 31550, June 7, 2007). Given that marine mammal
abundance data is limited for the proposed project area, NMFS believes
that using the sighting data from the previous barging activities,
which occurred in the same area as the proposed action, is the best way
to estimate numbers of Level B harassment of marine mammals that could
be incidentally taken by barging activities.
Comment 5: The NSB states that the statement made in the previous
Federal Register notice (FR 72 31550, June 7, 2007) that studies at
Northstar found no evidence of development activities affecting the
availability of seals for subsistence hunters is misleading, because
NMFS acknowledges that the Northstar vicinity is outside the areas used
by subsistence hunters. The NSB states that there is little to no
information available about the effects that the proposed barging would
have on subsistence hunting.
Response: The Northstar example in the previous Federal Register
notice (FR 72 31550, June 7, 2007) is based on research in the vicinity
of Northstar that long-term oil and gas activities did not show any
significant impacts on the distribution and abundance of ringed seals
(Williams et al., 2001; 2006). NMFS believes that such evidence is a
good indication that the proposed barging operations, which would occur
in a smaller scale for a much shorter period, would not have an
unmitigable effect on subsistence uses of marine mammals. In addition,
FEX and the Alaska Eskimo Whaling Commission (AEWC) signed the Conflict
Avoidance Agreement (CAA) on June 11, 2007. FEX will continue to work
with Alaskan Natives to ensure that the proposed barging operations
would not have unmitigable impacts to subsistence use of marine mammal
species and stocks.
Comment 6: The NSB requests that FEX conduct sound signature tests
(SSTs). The NSB states that last year's test indicated that pushing
heavy barge loads produced greater sound levels than unloaded barges.
The NSB states that they understand that FEX will not be loading the
barges to full capacity, the information gleaned from tests of barges
running at even half capacity would be valuable. The NSB further
requests that SSTs should measure down to the 120 dB level. The NSB
states that using a model to estimate the 120 dB level is not
appropriate because last year the models underestimated distances by 2
- 3 times.
Response: FEX states that they met with representative of the NSB
on June 21, 2007, and discussed the SST. FEX explained that while the
report from JASCO Research noted that the barges were ``partially
loaded,'' in fact they were fully loaded to meet the draft restrictions
of getting into Cape Simpson. FEX states that the one time a vessel was
listed as fully loaded, it was actually fully loaded by volume, not by
weight. FEX further states that the reason for the noise increase was
due to a damaged propellor.FEX states that it has discussed the SST
with the NSB regarding the SST, and that some good data on vessel noise
were collected in 2006 for the same barges that would be used for the
proposed operations. NMFS agrees with FEX that since extensive acoustic
measures were obtained from these barges a year earlier, there is no
need to conduct additional measurement.
Potential Effects of Tug/Barge Operations and Associated Activities on
Marine Mammals
Level B harassment of marine mammals may result from the noise
generated by the operation of towing vessels during barge movement. The
physical presence of the tugs and barges could also lead to disturbance
of marine mammals by visual or other cues. The potential for collisions
between vessels and whales will be essentially zero due
[[Page 45742]]
to the slow tow speed (approximately 5 knots) and visual monitoring by
on-board MMOs.
Marine mammal species with the highest likelihood of being harassed
during the tug and barge movements are: beluga whales, ringed seals,
spotted seals, and bearded seals.
Bowhead whales are not expected to be encountered in more than very
small numbers during the planned period of time for the tug/barge
movement because the most of them will be on their summer feeding
grounds in the eastern Beaufort Sea and Amundsen Gulf of the Canadian
waters (Fraker and Bockstoce, 1980; Shelden and Rugh, 1995).
A few transitory whales may be encountered during the transits.
Most summering gray whales congregate in the northern Bering Sea,
particularly off St. Lawrence Island and in the Chirikov Basin (Moore
et al., 2000), and in the southern Chukchi Sea. In August 2001,
Williams and Coltrane (2002) reported a single sighting of a gray whale
near the Northstar production facility, indicating that small numbers
do travel through the waters offshore from the Prudhoe Bay region
during some summers, however, given their rare occurrence in the
eastern portion of the Beaufort Sea in summer, no more than a few are
expected during the summer and early fall.
Beluga whales occur in the Beaufort Sea during the summer, but are
expected to be found near the pack ice edge north of the proposed
movement route. Depending on seasonal ice conditions, it is possible
that belugas may be encountered during the transits.
Based on past surveys, ringed seals should represent the vast
majority of marine mammals encountered during the transits. Ringed
seals are expected to be present all along the tug/barge transit
routes. There is the possibility that bearded and spotted seals would
also be taken by Level B harassment during transit. Spotted seals may
be present in the West Dock/Prudhoe Bay area, but it is likely that
they may be closer to shore.
Numbers of Marine Mammals Expected To Be Taken
The number of marine mammals that may be taken as a result of the
tug/barging operation is unpredictable since there is a lack of
abundance estimate data for these species within the transit route.
However, based on prior barging activities in 2005 and 2006, it is
expected that a small number of marine mammals could be exposed to
barging noise levels at 120 dB re 1 microPa and above.
Based on the fact that bowhead whales, gray whales, and beluga
whales were all observed during the 2005 operations (although no
cetaceans were observed during 2006), harassment of cetaceans is
possible by the 2007 planned barging operations. Gray whales in 2005
were observed near Pt. Barrow, outside the West Dock/Cape Simpson
operating lane, during periods the vessels traveled to Elson Lagoon to
avoid foul weather. No gray whales have been observed between West Dock
and Cape Simpson, and are not expected to be encountered unless weather
conditions dictate the safety need of the vessels anchoring at Elson
Lagoon.
Beluga distribution is difficult to predict. Sightings are always
possible, especially if the pack ice is nearby.
The barging travel route between West Dock and Cape Simpson
approximately follows the 7.5-m (25-ft) isobath. This nearshore depth
zone represents the southern edge of the bowhead fall migration route.
Aerial surveys conducted by Treacy (2002) between 1982 and 2001 found
bowheads migrating in water this shallow in only 5 of the 20 years of
survey (25 percent). Thus, given the shallow water barging travel
route, and the inter-annual differences in whale use of these waters,
the number of whale sightings expected to be encountered might vary
from 0 (as in 2006) to 9 (in 2005).
Some of the whales observed in 2005 may have briefly occurred
within the 120-dB sonification zone (l km or 0.62 mi radius),
therefore, Level B harassment of bowhead whales is possible. However,
given the shallow water travel route, the low whale use of this shallow
water area, the presence of marine mammal observers onboard the barges
to detect whales early and help direct the barge away from the whales,
the relatively short distances to the 120-dB isopleths, especially for
the half the time the vessel are traveling unloaded, and based on
cetacean encountering rates during the 2005 barding activity, NMFS
expects that at maximum 9 bowhead whales, 8 beluga whales, and 4 gray
whales could be exposed to sound levels greater than 120 dB during the
2007 barging season. These take numbers would represent approximately
0.09 percent of the Western Arctic bowhead whales (population estimated
at 10,545), 0.02 percent of the Beaufort Sea beluga whales (population
estimated at 39,258) or 0.21 percent of the Eastern Chukchi Sea beluga
(population estimated at 3,710), and 0.02 percent of the Eastern North
Pacific gray whales (population estimated at 18,178).
During the 2005 and 2006 barging season, 2,419 seals representing
three species (ringed, spotted, and bearded seals) were recorded.
Approximately 90 percent of these animals were ringed seals.
In 2006, reactions were recorded for 1,020 of the ringed seal
sightings. Of these, 48 percent (490) had no reaction, 37 percent (381)
reacted mildly, and 15 percent (148) more strongly and showed startling
behavior. The percentage of ringed seals that reacted strongly is very
similar to the 17 percent recorded in 2005.
Of the 23 spotted seal sightings for which reactions were recorded
in the 2006 barging season, 30 percent (9) showed behavioral changes.
Eighteen (24 percent) of the 75 unidentified phocids and 2 (7
percent) of 28 bearded seals sighted showed behavioral reactions as a
result of the 2006 barging activity.
Based on the 2005 and 2006 barging activities, NMFS estimates that
approximately 530 ringed seals, 10 spotted seals, 2 bearded seals, and
9 unidentified phocids could be taken by Level B harassment as a result
of the 2007 barging activity. These numbers represent less than 0.02,
0.02, and 0.0008 percent of ringed, spotted, and bearded seals in the
proposed barging route, respectively. The population estimates for
these animals are approximately 249,000, 59,214, and 250,000-300,000
for ringed, spotted, and bearded seals, respectively.
Effects on Subsistence Needs
Barrow residents are the primary subsistence users in the activity
area. The subsistence harvest during winter and spring is primarily
ringed seals, but during the open-water period both ringed and bearded
seals are taken. Barrow hunters may hunt year round; however, in more
recent years most of the harvest has been in the summer during open
water instead of the more difficult hunting of seals at holes and lairs
(Mclaren, 1958; Nelson, 1969). The Barrow fall bowhead whaling grounds,
in some years, takes in the Cape Simpson and Point Lonely areas.
The most important area for Nuiqsut hunters is off the Colville
River Delta in Harrison Bay, between Fish Creek and Pingok Island. Seal
hunting occurs in this area by snow machine before spring break-up and
by boat during summer. Subsistence patterns are reflected in harvest
data collected in 1992 where Nuiqsut hunters harvested 22 of 24 ringed
seals and all 16 bearded seals during the open water season from July
to October (Fuller and George, 1997). Harvest data for 1994 and 1995
show 17
[[Page 45743]]
of 23 ringed seals were taken from June to August, while there was no
record of bearded seals being harvested during these years (Brower and
Opie, 1997).
Due to the transient and temporary nature of the barge operations,
impacts on these seals are not expected to have an unmitigable adverse
impact on subsistence uses of ringed and bearded seals because: (1)
transient operations would temporarily displace relatively few seals;
(2) displaced seals would likely move only a short distance and remain
in the area for potential harvest by native hunters; (3) studies at the
Northstar development found no evidence of the development activities
affecting the availability of seals for subsistence hunters; however,
the Northstar vicinity is outside the areas used by subsistence hunters
(Williams et al., 2001; 2006); and (4) the area where barge operations
would be conducted is small compared to the large Beaufort Sea
subsistence hunting area associated with the extremely wide
distribution of ringed seals.
In order to further minimize any effect of barge operations on the
availability of seals for subsistence, the tug boat owners/operators
will follow U.S. Coast Guard rules and regulations near coastal water,
therefore avoiding hunters and the locations of any seals being hunted
in the activity area, whenever possible.
The barging, as scheduled, would be completed before the westward
migration of bowhead whales in the fall and the associated subsistence
activities by the local whalers. Finally, the travel route occurs west
of Cross Island (Nuiqsut fall bowhead camp) and east of Barrow,
therefore it does not pass by any of the whaling base camps.
In addition, FEX and the AEWC signed the CAA on June 11, 2007. FEX
will continue to maintain interactive dialogue to resolve conflicts and
to notify communities of any changes in the operations.
Mitigation, Monitoring, and Reporting
As in 2005 and 2006, FEX will conduct a marine mammal monitoring
program as part of the 2007 program. This program will place an MMO
onboard each vessel to conduct continuous monitoring for marine
mammals. The MMOs will be trained by a qualified marine mammal
biologist and be approved by NMFS.
The observers will scan the area around tug/barge with 7 x 50
reticule binoculars during the daylight hours, and document the
presence, distribution, behavior, and reaction of marine mammals
sighted from project-associated vessels. The primary purpose of the
marine mammal monitoring program is to monitor the reaction of marine
mammals to the presence of the vessels, and to detect early any whales
occurring in the barge path thereby allowing the vessel captain time to
avoid a close approach to the animals.
Reports for each roundtrip will be prepared and provided to NMFS
and AEWC at the end of each trip. If a coordination center is opened by
other North Slope operators and operated during FEX's monitoring
operations, marine mammals trip sighting reports will be provided to
that location.
A report documenting and analyzing any harassment or other
``takes'' of marine mammals that occur as part of this monitoring
program will be provided to NMFS within 90 days of completion of the
monitoring activities. Copies will be provided to other qualified
interested parties. This report will provide dates and locations of all
barge movements and other operational activities, weather conditions,
dates and locations of any activities related to monitoring the effects
on marine mammals, and the methods, results, and interpretation of all
monitoring activities, including numbers of each species observed,
location (distance) of animals relative to the barges, direction of
movement of all individuals, and description of any observed changes or
modifications in behavior.
ESA Consultation
The effects of oil and gas exploration activities in the U.S.
Beaufort Sea on listed species, which includes barging transportation
activity, were analyzed as part of a consultation on oil and gas
leasing and exploration activities in the Beaufort Sea, Alaska, and
authorization of incidental takes under the MMPA. A biological opinion
on these activities was issued in 2001, and updated in 2006. The only
species listed under the ESA that might be affected during these
activities are bowhead whales. The effects of this IHA on bowhead
whales has been compared with the analysis contained in the 2006
biological opinion. NMFS has determined that the effects of the current
activity is not likely to jeopardize the existence of ESA-listed marine
mammal species, and are consistent with the findings of that biological
opinion. Accordingly, NMFS has issued an Incidental Take Statement
under section 7 of the ESA.
National Environmental Policy Act (NEPA)
On February 5, 1999 (64 FR 5789), the Environmental Protection
Agency (EPA) noted the availability of a Final Environmental Impact
Statement (Final EIS) prepared by the U.S. Army Corps of Engineers
under NEPA on Beaufort Sea oil and gas development at Northstar. NMFS
was a cooperating agency on the preparation of the Draft and Final
EISs, and subsequently, on May 18, 2000, adopted the Corps' Final EIS
as its own document. That Final EIS described impacts to marine mammals
from Northstar construction activities, which included vessel traffic
similar to the currently proposed action by FEX. No additional NEPA
analysis is required for the following reasons: (1) The barging
activity discussed in the Final EIS is not substantially different from
the proposed action by FEX; and (2) no significant new scientific
information had been identified that alters the affected environment.
Conclusions
NMFS has determined that the impact of conducting a short-term
barging operation between West Dock, Prudhoe Bay and Cape Simpson or
Point Lonely, in the U.S. Beaufort and associated activities will
result, at worst, in a temporary modification in behavior by a small
number of certain species of whales and pinnipeds. While behavioral
modifications may be made by these species to avoid the resultant noise
or visual cues from the barging operation, this behavioral change is
expected to have a negligible impact on the annual rate of survival and
recruitment of marine mammal stocks. In addition, no take by injury
and/or death is anticipated, and there is no potential for temporary or
permanent hearing impairment as a result of the activities. No
rookeries, mating grounds, areas of concentrated feeding, or other
areas of special significance for marine mammals occur within or near
the relocation route.
The principal measures undertaken to ensure that the barging
operation will not have an unmitigable adverse impact on subsistence
activities is a CAA between FEX and the AEWC, a Plan of Cooperation,
and an operation schedule that will not permit barging operations
during the traditional bowhead whaling season.
Determinations
NMFS has issued an IHA for the harassment of marine mammals
incidental to FEX conducting a barging operation from West Dock,
Prudhoe Bay Alaska, through the U.S. Beaufort Sea to Cape Simpson or
Point Lonely. This IHA is contingent upon incorporation of the
previously mentioned mitigation, monitoring, and reporting
requirements. NMFS has determined that this activity would result in
the harassment of small numbers of bowhead whales, gray
[[Page 45744]]
whales, beluga whales, ringed seals, bearded seals and spotted seals;
would have a negligible impact on these marine mammal stocks; and would
not have an unmitigable adverse impact on the availability of marine
mammal stocks for subsistence.
Dated: August 9, 2007.
James H. Lecky,
Director, Office of Protected Resources, National Marine Fisheries
Service.
[FR Doc. E7-16011 Filed 8-14-07; 8:45 am]
BILLING CODE 3510-22-S