[Federal Register Volume 73, Number 153 (Thursday, August 7, 2008)]
[Notices]
[Pages 45994-45999]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E8-18136]


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DEPARTMENT OF COMMERCE

National Oceanic and Atmospheric Administration

RIN 0648-XJ30


Taking and Importing Marine Mammals; Taking Marine Mammals 
Incidental to Surf Zone Testing/Training and Amphibious Vehicle 
Training and Weapons Testing

AGENCY:  National Marine Fisheries Service (NMFS), National Oceanic and 
Atmospheric Administration (NOAA), Commerce.

ACTION:  Notice of issuance of an incidental harassment authorization.

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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 marine mammals, by 
harassment, incidental to conducting surf zone testing/training and 
amphibious vehicle training and weapons testing off the coast of Santa 
Rosa Island (SRI), has been issued to the Eglin Air Force Base (Eglin 
AFB) for a period of 1 year.

DATES:  This authorization is effective from July 25, 2008, until July 
24, 2009.

ADDRESSES:  A copy of the application, IHA, and a list of 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. A copy of the Santa Rosa Island 
Mission Utilization Plan Programmatic Environmental Assessment (SRI 
Mission PEA) (U.S. Air Force, 2005) is available by writing to the 
Department of the Air Force, AAC/EMSN, Natural Resources Branch, 501 
DeLeon St., Suite 101, Eglin AFB, FL 32542-5133.

FOR FURTHER INFORMATION CONTACT:  Shane Guan, Office of Protected 
Resources, NMFS, (301) 713-2289, ext 137.

SUPPLEMENTARY INFORMATION:

Background

    Sections 101(a)(5)(A) and 101(a)(5)(D) of the MMPA (16 U.S.C. 1361 
et seq.) direct the Secretary of Commerce (Secretary) 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 regulations are issued or,

[[Page 45995]]

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) and will not 
have an unmitigable adverse impact on the availability of the species 
or stock(s) for certain subsistence uses, and if 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.''
    Subsection 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 marine mammals by harassment. With 
respect to ``military readiness activities,'' the MMPA defines 
``harassment'' as follows:
    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].

Summary of Request

    On November 21, 2005, Eglin AFB petitioned NMFS for an 
authorization under section 101(a)(5) of the MMPA for the taking, by 
harassment, of marine mammals incidental to programmatic mission 
activities on Eglin's SRI property, including the shoreline of the Gulf 
of Mexico (Gulf or GOM) to a depth of 30 feet (9.1 meters), which is 
also known as the surf zone. The distance from the island shoreline 
that corresponds to this depth varies from approximately 0.5 mile (0.8 
km) at the western side of the Air Force property to 1.5 miles (2.4 km) 
at the eastern side, extending out into the inner continental shelf. 
Following notice and comment, NMFS issued an incidental harassment 
authorization (IHA) to Eglin AFB for a period of one year from December 
11, 2006, to December 10, 2007 (71 FR 76989, December 22, 2006), with 
mitigation, monitoring, and reporting requirements. On October 16, 
2007, NMFS received a request from Eglin AFB to renew the IHA for a 
period of one year.
    Activities conducted in this area are addressed in the Estuarine 
and Riverine Areas Programmatic Environmental Assessment (U.S. Air 
Force, 2003a). The proposed action is for the 46th Test Wing Commander 
to establish a mission utilization plan for SRI based on historical and 
anticipated future use. Current and future operations are categorized 
as either testing or training and include: 1) Surf Zone Testing/
Training; 2) Landing Craft Air Cushion (LCAC) Training and Weapons 
Testing; 3) Amphibious Assaults; and 4) Special Operations Training. A 
detailed description of the proposed activities is provided in the June 
22, 2006, Federal Register notice of proposed IHA (71 FR 35870). There 
is no change of activities for the proposed renewal of the IHA, 
therefore, please refer to that Federal Register notice for detailed 
information of the activities.

Comments and Responses

    A notice of receipt and request for public comment on the 
application and proposed authorization was published on March 28, 2008 
(73 FR 16646). During the 30-day public comment period, NMFS received 
the comments from the Marine Mammal Commission (Commission).
    Comment 1: The Commission recommends that NMFS issue the requested 
authorization, provided that it requires that operations be suspended 
immediately if a dead or seriously injured marine mammal is found in 
the vicinity of the operations and the death or injury could have 
occurred incidental to the proposed activities.
    Response: NMFS concurs with the Commission's recommendation raised 
in the above comment.

Description of Marine Mammals Affected by the Activity

    Marine mammal species potentially occurring within the proposed 
action area include the Atlantic bottlenose dolphin (Tursiops 
truncatus), the Atlantic spotted dolphin (Stenella frontalis), and the 
Florida manatee (Trichechus manatus latirostris). General information 
on Florida manatees can be found in the Florida Manatee Recovery Plan 
(U.S. Fish and Wildlife Service, 2001).
    Atlantic bottlenose dolphins are distributed throughout the 
continental shelf, coastal, and bay-sound waters of the northern GOM 
and along the U.S. mid-Atlantic coast. The identification of a 
biologically-meaningful ``stock'' of bottlenose dolphins in the GOM is 
complicated by the high degree of behavioral variability exhibited by 
this species (Wells, 2003). Currently, bottlenose dolphins in the U.S. 
GOM are managed as 38 different stocks: one northern GOM oceanic stock, 
one northern GOM continental shelf stock, three northern GOM costal 
stocks (western, northern, and eastern Gulf), and 33 bay, sound, and 
estuarine stocks (Waring et al., 2007). The identification of these 
stocks is based on descriptions of relatively discrete dolphin 
communities in these waters. A community includes resident dolphins 
that regularly share large portions of their ranges, exhibit similar 
distinct genetic profiles, and interact with each other to a much 
greater extent than with dolphins in adjacent waters. Bottlenose 
dolphin communities do not constitute closed demographic populations, 
as individuals from adjacent communities are known to interbreed. 
Nevertheless, the geographic nature of these areas and long-term 
stability of residency patterns suggest that many of these communities 
exist as functioning units of their ecosystems.
    Within the proposed action area, at least three Atlantic bottlenose 
dolphin stocks are expected to occur: the northern GOM northern 
coastal, the Pensacola Bay/East Bay stock, and the Choctawhatchee Bay 
stock (Waring et al., 2007). The best population size estimates 
available for these stocks are more than 13 years old; therefore, the 
current population size for each stock is considered unknown (Wade and 
Angliss, 1997). These data are insufficient to determine population 
trends for all of the GOM bay, sound and estuary bottlenose dolphin 
communities. The relatively high number of bottlenose dolphin deaths 
that occurred during mortality events (mostly from stranding) since 
1990 raises a concern that some of the stocks are stressed. Human-
caused mortality and serious injury for each of these stocks is not 
known, but considering the evidence from stranding data, the total 
human-caused mortality and serious injury exceeds 10 percent of the 
total known potential biological removal (PBR) or pervious PBR, and, 
therefore, it is probably not insignificant. For these reasons, each of 
these stocks is listed as a strategic stock under the MMPA.
    The Atlantic spotted dolphin is endemic to the Atlantic Ocean in 
temperate to tropical waters (Perrin et al., 1994). In the GOM, this 
species occurs primarily from continental shelf waters 10 - 200 m (32.8 
- 656.2 ft) deep to slope waters <500 m (1,640 ft) deep (Fulling et 
al., 2003). Atlantic spotted dolphins were seen in all seasons during 
GulfCet aerial surveys of the northern GOM from 1992 to 1998 (Hansen et 
al., 1996; Mullin and Hoggard, 2003). It has been suggested that this 
species may move inshore

[[Page 45996]]

seasonally during spring, but data supporting this hypothesis are 
limited (Fritts et al., 1983). The best available abundance estimate 
for the northern GOM stock of the Atlantic spotted dolphin is 30,947 
(NMFS, 2005).
    More detailed information on Atlantic bottlenose and spotted 
dolphins can be found in the NMFS Stock Assessment Reports at: http://www.nefsc.noaa.gov/nefsc/publications/tm/tm201/tm201.pdf.

Potential Impacts to Marine Mammals

    Potential impacts to marine mammals may occur due to underwater 
noise and direct physical impacts (DPI). Noise is produced by 
underwater detonations in the surf zone and by the operation of 
amphibious vehicles. DPI could result from collisions with amphibious 
vehicles and from ordnance live fire. However, with implementation of 
the mitigation actions proposed later in this document, the potential 
for impacts to marine mammals are anticipated to be de minimus (U.S. 
Air Force, 2005).
    Explosive criteria and thresholds for assessing impacts of 
explosions on marine mammals are summarized here in Table 1 and were 
discussed in detail in NMFS's notice of issuance of an IHA for Eglin's 
Precision Strike Weapon testing activity (70 FR 48675, August 19, 
2005). Please refer to that document for background information.

Estimation of Take and Impact

Surf Zone Detonation

    Surf zone detonation noise impacts are considered within two 
categories: overpressure and acoustics. Underwater explosive 
detonations produce a wave of pressure in the water column. This 
pressure wave potentially has lethal and injurious impacts, depending 
on the proximity to the source detonation. Humans and animals receive 
the acoustic signature of noise as sound. Beyond the physical impacts, 
acoustics may cause annoyance and behavior modifications (Goertner, 
1982).
    The impacts on marine mammals from underwater detonations were 
discussed by NMFS in detail in its notice of receipt of application for 
an IHA for Eglin's Air-to-Surface Gunnery mission in the Gulf (71 FR 
3474, January 23, 2006) and is not repeated here. Please refer to that 
document for this background information.
    A maximum of one surf zone testing/training mission would be 
completed per year. The impact areas of the proposed action are derived 
from mathematical calculations and models that predict the distances to 
which threshold noise levels would travel. The equations for the models 
consider the amount of net explosive, the properties of detonations 
under water, and environmental factors such as depth of the explosion, 
overall water depth, water temperature, and bottom type.
    The end result of the analysis is an area known as the Zone of 
Influence (ZOI). A ZOI is based on an outward radial distance from the 
point of detonation, extending to the limit of a particular threshold 
level in a 360-degree area. Thus, there are separate ZOIs for 
mortality, injury (hearing-related injury and slight, non-fatal lung 
injury), and harassment (temporary threshold shift, or TTS, and sub-
TTS). Given the radius, and assuming noise spreads outward in a 
spherical manner, the entire area ensonified (i.e., exposed to the 
specific noise level being analyzed) is estimated.
    The radius of each threshold is shown for each shallow water surf 
zone mine clearing system in Table 1. The radius is assumed to extend 
from the point of detonation in all directions, allowing calculation of 
the affected area.
    The number of takes is estimated by applying marine mammal density 
to the ZOI (area) for each detonation type. Species density for most 
cetaceans is based on adjusted GulfCet II aerial survey data, which is 
shown in Table 2. GulfCet II data were conservatively adjusted upward 
to approximately two standard deviations to obtain 99 percent 
confidence, and a submergence correction factor was applied to account 
for the presence of submerged, uncounted animals. However, the 
calculation is an overestimate, since up to half of the ZOI would be 
over land and very shallow surf, which is not considered marine mammal 
habitat.

   Table 1. Zones of Impact for Underwater Explosive from Four Mine Clearing Systems (Acoustic units are re 1
                                                   microPa\2\)
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                                                                                 ZOI Radius (m)
                                                              --------------------------------------------------
            Criteria                       Threshold                              MK-5 MCS
                                                               SABRE 232 lb NEW   1,750 lb  DET 130  MK-82 ARRAY
                                                                                    NEW        lb      1,372 lb
----------------------------------------------------------------------------------------------------------------
                  Level B             176 dB 1/3 Octave SEL*              1,440      2,299    1,252        2,207
                   Behavior
                  Level B TTS          182 dB 1/3 Octave SEL                961      1,658      796        1,544
                   Dual
                   Criterion
                  Level A PTS                     205 dB SEL                200        478      155          436
                  Level B Dual                        23 psi                857      1,788      761        1,557
                   Criteria
                  Level A                        13 psi-msec                 60        100       58           86
                   Injury
                  Mortality                    30.5 psi-msec                 45         68       42           60
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*SEL - Sound energy level


                           Table 2. Cetacean Densities for Gulf of Mexico Shelf Region
----------------------------------------------------------------------------------------------------------------
                                                                    Dive profile -        Adjusted density
                    Species                     Individuals/km\2\    % at surface       (Individuals/km\2\)*
----------------------------------------------------------------------------------------------------------------
                  Bottlenose dolphin                       0.148               30                         0.810
                  Atlantic spotted dolphin                 0.089               30                         0.677
                  Bottlenose or Atlantic                   0.007               30                         0.053
                   dolphin
                  Total                                    0.244   ...............                         1.54
----------------------------------------------------------------------------------------------------------------
* Adjusted for undetected submerged animals to approximately two standard deviations.


[[Page 45997]]

    Table 3 lists the noise-related dolphin take estimates resulting 
from surf zone detonations that are the subject of this proposed IHA. 
The estimates in each category are based on different types of 
explosives at different ranges and therefore, each category is 
associated with a degree of take. The take numbers represent the 
combined total of Atlantic bottlenose and Atlantic spotted dolphins, 
and do not consider any mitigation measures. The use of combined 
Atlantic bottlenose and Atlantic spotted dolphin numbers is because of 
the difficulty in distinguish them from each other in the field. 
Implementation of mitigation measures discussed below would 
significantly decrease the number of takes, although a quantitative 
assessment of take reduction is not possible. Discussion of the amount 
of take reduction is provided below.

           Table 3. Take Estimates from Noise Impacts to Dolphins (Acoustic units are re 1 microPa\2\)
----------------------------------------------------------------------------------------------------------------
                                                                                                MK-82     Total
              Criteria                       Threshold          SABRE     MK-5 MCS      DET     Array    Takes*
----------------------------------------------------------------------------------------------------------------
                  Sub-TTS              176 dB 1/3 Octave SEL       10            26       8        24        68
                   (behavioral
                   level)
                  Level B              182 dB 1/3 Octave SEL        5            13       3        12        33
                   Harassment TTS
                   (dual criterion)
                  Level B TTS (dual                   23 psi        4            15       3        12        34
                   criterion)
                  Level A PTS               205 dB Total SEL        0             1       0         1         2
                  Level A Non-                   13 psi-msec        0             0       0         0         0
                   lethal Injury
                  Mortality                    30.5 psi-msec        0             0       0         0         0
----------------------------------------------------------------------------------------------------------------
*Estimated exposure with no mitigation measures in place

Noise from LCAC

    Noise resulting from LCAC operations was considered under a transit 
mode of operation. The LCAC uses rotary air screw technology to power 
the craft over the water, therefore, noise from the engine is not 
emitted directly into the water. The Navy's acoustic in-water noise 
characterization studies show the noise emitted from the LCAC into the 
water is very similar to that of the MH-53 helicopter operating at low 
altitudes. Based on the Air Force's Excess Sound Attenuation Model for 
the LCAC's engines under ground runup condition, the data estimate that 
the maximum noise level (98 dBA) is at a point 45 degrees from the bow 
of the craft at a distance of 61 m (200 ft) in air. Maximum noise 
levels fall below 90 dBA at a point less than 122 meters (400 ft) from 
the craft in air (U.S. Air Force, 1999).
    Due to the large difference of acoustic impedance between air and 
water, much of the acoustic energy would be reflected at the surface. 
Therefore, the effects of noise from LCAC to marine mammals would be 
negligible.

Collision with Vessels

    During the time that amphibious vehicles are operating in (or, in 
the case of LCACs, just above) the water, encounters with marine 
mammals are possible. A slight possibility exists that such encounters 
could result in a vessel physically striking an animal. However, this 
scenario is considered very unlikely. Dolphins are extremely mobile and 
have keen hearing and would likely leave the vicinity of any vehicle 
traffic. The largest vehicles that would be moving are LCACs, and their 
beam measurement can be used for conservative impact analyses. The 
operation which potentially uses the largest number of LCACs is 
Amphibious Ready Group/Marine Expeditionary Unit (ARG/MEU) training. 
Based on analysis in the ARG/MEU Readiness Training Environmental 
Assessment (U.S. Air Force, 2003b), LCAC activities (over 10 days) 
could potentially impact 22.25 square miles of the total water surface 
area. The estimated number of bottlenose dolphins in this area is 6.9, 
with an approximately equal number of Atlantic spotted dolphins. These 
species would easily avoid collision because the LCACs produce noise 
that would be detected some distance away, and therefore would be 
avoided as any other boat in the Gulf. In addition, Amphibious Assault 
Vehicles (AAVs) move very slowly and could be easily avoided. The 
potential for amphibious craft colliding with marine mammals and 
causing injury or death is therefore considered remote.

Live Fire Operations

    Live fire operations with munitions directed towards the Gulf have 
the potential to impact marine mammals (primarily bottlenose and 
Atlantic spotted dolphins).
    A maximum of two live fire operations would be conducted in a year, 
and are associated with expanded Special Operations training on SRI. 
Small caliber weapons between 5.56 mm and .50 caliber with low-range 
munitions would be allowed only within designated live fire areas. The 
average range of the munitions is approximately 1 km (0.54 nm). If a 
given live fire area was 1 km (0.54 nm) wide, then approximately 1.5 
dolphins could be vulnerable to a munitions strike. However, even the 
largest live fire area on SRI is considerably less than 1 km (0.54 nm) 
wide. If live fire is conservatively estimated to originate from a 
section of beach 0.2 km (0.11 nm) wide, only 0.3 dolphins would be 
within the area of potential DPI (using Table 2 density estimates). 
Finally, the mitigation measures discussed below would further reduce 
the likelihood of direct impacts to marine mammals due to live fire 
operations.
    Given the infrequency of the surf zone detonation (maximum of once 
per year) and the amphibious vehicle and weapon testing (maximum of 
twice per year), NMFS believes there is no potential for long-term 
displacement or behavioral impacts of marine mammals within the 
proposed action area.

Mitigation Measures

    Eglin AFB will employ a number of mitigation measures in an effort 
to substantially decrease the number of animals potentially affected. 
Visual monitoring of the operational area can be a very effective means 
of detecting the presence of marine mammals. This is particularly true 
of the species most likely to be present (bottlenose and Atlantic 
spotted dolphins) due to their tendency to occur in groups, their 
relatively short dive time, and their relatively high level of surface 
activity. In addition, the water clarity in the northeastern GOM is 
typically very high. It is often possible to view the entire water 
column in the water depth that defines the action area (30 feet or 9.1 
m).
    For the surf zone testing/training, missions will only be conducted 
under daylight conditions of suitable visibility and sea state of 
number three or less. Prior to the mission, a trained observer aboard a 
helicopter will survey (visually monitor) the test area, which is a 
very effective method for detecting sea turtles and cetaceans. In 
addition, shipboard

[[Page 45998]]

personnel will provide supplemental observations when available. The 
size of the area to be surveyed will depend on the specific test 
system, but it will correspond to the ZOI for Level B behavioral 
harassment (176 dB 1/3 octave SEL) listed in Table 1. The survey will 
be conducted approximately 250 feet (76 m) above the sea surface to 
allow observers to scan a large distance. If a marine mammal is sighted 
within the ZOI, the mission will be suspended until the animal is clear 
of this area. Surf zone testing will be conducted between 1 November 
and 1 March whenever possible.
    Navy personnel will only conduct live fire testing with sea surface 
conditions of sea state 3 or less on the Beaufort scale, which is when 
there is about 33 - 50 percent of surface whitecaps with 0.6 - 0.9 m (2 
- 3 ft) waves. During daytime missions, small boats will be used to 
survey for marine mammals in the proposed action area before and after 
the operations. If a marine mammal is sighted within the target or 
closely adjacent areas, the mission will be suspended until the area is 
clear. No mitigation for marine mammals would be feasible for nighttime 
missions, however, given the remoteness of impact, the potential that a 
marine mammal is injured or killed is unlikely.

Monitoring and Reporting

    The Eglin AFB will train personnel to conduct aerial surveys for 
protected species. The aerial survey/monitoring team will consist of an 
observer and a pilot familiar with flying transect patterns. A 
helicopter provides a preferable viewing platform for detection of 
protected marine species. The aerial observer must be experienced in 
marine mammal surveying and be familiar with species that may occur in 
the area. The observer will be responsible for relaying the location 
(latitude and longitude), the species if known, and the number of 
animals sighted. The aerial team will also identify large schools of 
fish, jellyfish aggregations, and any large accumulation of Sargassum 
that could potentially drift into the ZOI. Standard line-transect 
aerial surveying methods will be used. Observed marine mammals will be 
identified to species or the lowest possible taxonomic level possible.
    The aerial and (potential) shipboard monitoring teams will have 
proper lines of communication to avoid communication deficiencies. 
Observers will have direct communication via radio with the lead 
scientist, who will review the range conditions and recommend a Go/No-
Go decision to the Officer in Tactical Command, who makes the final Go/
No-Go decision.
    Specific stepwise mitigation procedures for SRI surf zone missions 
are outlined below. All ZOIs (mortality, injury, TTS) would be 
monitored.

Pre-mission Monitoring:

    The purposes of pre-mission monitoring are to (1) evaluate the test 
site for environmental suitability of the mission (e.g., relatively low 
numbers of marine mammals, etc.) and (2) verify that the ZOI is free of 
visually detectable marine mammals and other living marine resources. 
On the morning of the test, the lead scientist will confirm that the 
test site can support the mission and that the weather is adequate to 
support observations. (1) One Hour Prior to Mission
    Approximately one hour prior to the mission, or at daybreak, the 
appropriate vessel(s) will be on-site near the location of the earliest 
planned mission point. Personnel onboard the vessel will assess the 
suitability of the test site, based on visual observation of marine 
mammals. This information will be relayed to the Lead Scientist.
    (2) Fifteen Minutes Prior to Mission
    Aerial monitoring will commence at the test site 15 minutes prior 
to the start of the mission. The entire ZOI will be surveyed by flying 
transects through the area. Shipboard personnel will also monitor the 
area as available. All marine mammal sightings will be reported to the 
Lead Scientist, who will enter all pertinent data into a sighting 
database.
    (3) Go/No-Go Decision Process
    The Lead Scientist will record sightings and bearing for all 
protected species detected. This will depict animal sightings relative 
to the mission area. The Lead Scientist will have the authority to 
declare the range fouled and request a hold until monitoring indicates 
that the ZOI is and will remain clear of detectable animals.
    The mission will be postponed if any marine mammal is visually 
detected within the ZOI for Level B behavioral harassment. The delay 
will continue until the marine mammal is confirmed to be outside the 
ZOI for Level B behavioral harassment on its own.
    In the event of a postponement, pre-mission monitoring will 
continue as long as weather and daylight hours allow. Aerial monitoring 
is limited by fuel and the on-station time of the monitoring aircraft.

Post-mission monitoring:

    Post-mission monitoring is designed to determine the effectiveness 
of pre-mission mitigation by reporting any sightings of dead or injured 
marine mammals. Post-detonation monitoring will commence immediately 
following each detonation and continue for 15 minutes. The helicopter 
will resume transects in the area of the detonation, concentrating on 
the area down current of the test site.
    The monitoring team will attempt to document any marine mammals 
that were found dead or injured after the detonation, and, if 
practicable, recover and examine any dead animals. The species, number, 
location, and behavior of any animals observed by the observation teams 
will be documented and reported to the Lead Scientist.
    Post-mission monitoring activities will also include coordination 
with marine animal stranding networks. The NMFS maintains stranding 
networks along coasts to collect and circulate information about marine 
mammal standings.
    In addition, NMFS requires Eglin to monitor the target area for 
impacts to marine mammals and to report on their activities. NMFS' 
Biological Opinion on this action has recommended certain monitoring 
measures to protect marine life. The following requirements are listed 
under the IHA:
    (1) Eglin shall continue to implement a marine species observer-
training program in coordination with NMFS. This program primarily 
provides expertise to Eglin's testing and training community in the 
identification of marine mammals and other protected marine species 
during surface and aerial mission activities in the GOM. Additionally, 
personnel involved in the surf zone and amphibious vehicle and weapon 
testing/training will participate in the proposed species observation 
training. Observers will receive training in protected species survey 
and identification techniques through a NMFS-approved training program.
    (2) Eglin will track its use of the surf zone and amphibious 
vehicle and weapon testing/training for test firing missions and 
protected resources observations, through the use of an observer 
training sheet.
    (3) A summary annual report of marine mammal observations and surf 
zone and amphibious vehicle and weapon testing/training activities 
shall be submitted to the NMFS Southeast Regional Office (SERO) and the 
Headquarters Office of Protected Resources by January 31 of each year.
    (4) If a dead or injuried marine mammal is observed before or after 
testing, a report must be made to the NMFS by the following business 
day.
    (5) Any unauthorized takes of marine mammals (i.e., injury or 
mortality) must be immediately reported to the NMFS

[[Page 45999]]

representative and to the respective stranding network representative.

ESA

    On March 18, 2005, the U.S. Air Force (USAF), Eglin AFB, requested 
initiation of formal consultation on all potential environmental 
impacts to ESA-listed species from all Eglin AFB mission activities on 
SRI and within the surf zone near SRI. These missions include the surf 
zone detonation and amphibious vehicle and weapon testing/training that 
are the subject of this proposed IHA. On October 12, 2005, NMFS issued 
a Biological Opinion, concluding that the surf zone and amphibious 
vehicle and weapon testing/training are unlikely to jeopardize the 
continued existence of species listed under the ESA that are within the 
jurisdiction of NMFS or destroy or adversely modify critical habitat. 
Eglin AFB also consulted with the FWS for the SRI programmatic program 
regarding ESA-listed species and critical habitat under FWS 
jurisdiction. On December 1, 2005, FWS issued a Biological Opinion and 
concluded that the proposed mission activities are not likely to 
adversely affect these ESA-listed species based on Eglin's commitment 
to incorporate measures to avoid and minimize impacts to these species.

NEPA

    In March, 2005, the USAF prepared the Santa Rosa Island Mission 
Utilization Plan Programmatic Environmental Assessment (SRI Mission 
PEA). NMFS reviewed this PEA and determined that it satisfies, in large 
part, the standards under the Council on Environmental Quality's 
regulations and NOAA Administrative Order 216-6 for implementing the 
procedural provisions of the NEPA (40 CFR sec. 1508.3). On May 9, 2007, 
and April 4, 2008, Eglin AFB submitted additional information for 
consideration in re-assessing the cumulative impacts associated with 
the proposed issuance of this IHA. However, these analyses did not 
address the impact on the environment which results from the 
incremental impact of the action when added to other past, present, and 
reasonably foreseeable future actions. Therefore, NMFS prepared its own 
supplemental EA to update the cumulative impacts analysis. A Finding of 
Non-Significant Impact statement is issued on July 24, 2008.

Determinations

    NMFS has determined that the surf zone and amphibious vehicle and 
weapon testing/training that are proposed by Eglin AFB off the coast of 
SRI, is unlikely to result in the mortality or injury of marine mammals 
(see Tables 2 and 3) and, would result in, at worst, a temporary 
modification in behavior by marine mammals. While behavioral 
modifications may be made by these species as a result of the surf zone 
detonation and amphibious vehicle training activities, any behavioral 
change is expected to have a negligible impact on the affected species 
or stocks. As there is no subsistence use of these marine mammal 
species in the action area, any behavioral change will have no impact 
on subsistence use. Also, given the infrequency of the testing/training 
missions (maximum of once per year for surf zone detonation and maximum 
of twice per year for amphibious assault training involving live fire), 
there is no potential for long-term displacement or long-lasting 
behavioral impacts of marine mammals within the proposed action area. 
In addition, the potential for temporary hearing impairment is very low 
and would be mitigated to the lowest level practicable through the 
incorporation of the mitigation measures mentioned in this document.

Authorization

    NMFS has issued an IHA, pursuant to section 101(a)(5)(D), to Eglin 
AFB for conducting surf zone and amphibious vehicle and weapon testing/
training off the coast of SRI in the northern GOM provided the 
previously mentioned mitigation, monitoring, and reporting requirements 
are implemented.

    Dated: July 24, 2008.
James H. Lecky,
Director, Office of Protected Resources, National Marine Fisheries 
Service.
[FR Doc. E8-18136 Filed 8-6-08; 8:45 am]
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