[Federal Register Volume 84, Number 90 (Thursday, May 9, 2019)]
[Notices]
[Pages 20331-20332]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: C1-2019-08848]
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DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
RIN 0648-XG874
Taking of Marine Mammals Incidental to Specific Activities;
Taking of Marine Mammals Incidental to Pile Driving and Removal
Activities During Construction of a Cruise Ship Berth, Hoonah, Alaska
Correction
In notice document 2019-08848 beginning on page 18495 in the issue
of Wednesday, May 1, 2019, make the following corrections:
1. On page 18511, Table 5 should read as follows:
Table 5--NMFS Technical Guidance (2018) User Spreadsheet Input To Calculate PTS Isopleths for Vibratory Pile Driving
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User Spreadsheet Input--vibratory pile driving/anchoring and socketing spreadsheet tab A.1 Vibratory pile driving used
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24-in piles 30-in piles 30-in piles 30-in piles 36-in piles 42-in piles 24-in and
(temporary (temporary 8-in 33-in 30-in
(permanent) install) removal) (permanent) (permanent) (permanent) anchoring anchoring socketing
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Source Level (RMS SPL)................... 161.9 161.9 161.9 161.9 168.2 168.2 166.2 166.2 166.2
Weighting Factor Adjustment (kHz)........ 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
Number of piles within 24-hr period...... 4 6 6 2 2 2 1 2 2
Duration to drive a single pile (min).... 10 20 10 30 30 60 60 240 60
Propagation (xLogR)...................... 15 15 15 15 15 15 15 15 15
Distance of source level measurement 10 10 10 10 10 10 10 10 10
(meters) *..............................
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2. On page 18515, Table 9 should read as follows:
[[Page 20332]]
Table 9--Proposed Take Estimates as a Percentage of Stock Abundance
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Level A Level B
Species Stock (NEST) harassment harassment Percent of stock
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Minke Whale.................. N/A............ 0................. 9................. N/A.
Humpback Whale............... Hawaii DPS 0................. 406............... 4.3.
(9,487) \a\.
Mexico DPS 27................ 4.5.
(606) \a\. (Total 433.)......
Gray Whale................... Eastern North 0................. 3................. Less than 1 percent.
Pacific
(26,960).
Killer Whale................. Alaska Resident 0................. 469............... 19.9 \b\
(2,347).
Northern 52 19.9 \b\
Resident (261).
West Coast 49................ 20.2. \b\
Transient (Total 570.)......
(243).
Pacific White-Sided Dolphin.. North Pacific 0................. 164............... Less than 1 percent.
(26,880).
Dall's Porpoise.............. Alaska (83,400) 0................. 1,038............. 1.2.
\c\.
Harbor Porpoise.............. NA............. 32................ 1,932............. NA.
Harbor Seal.................. Glacier Bay/Icy 16................ 156............... 2.16.
Strait (7,210).
Steller Sea Lion............. Eastern U.S. 15................ 520............... 1.25
(41,638).
Western U.S. 1................. 39................ Less than 1 percent.
(53,303). (Total 16.)....... (Total 559.)......
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\a\ Under the MMPA humpback whales are considered a single stock (Central North Pacific); however, we have
divided them here to account for DPSs listed under the ESA. Using the stock assessment from Muto et al. 2018
for the Central North Pacific stock (10,103 whales) and calculations in Wade et al. 2016; 9,487 whales are
expected to be from the Hawaii DPS and 606 from the Mexico DPS.
\b\ Take estimates are weighted based on calculated percentages of population for each distinct stock, assuming
animals present would follow same probability of presence in project area.
\c\ Jefferson et al. 2019 presents the first abundance estimates for Dall's porpoise in the waters of Southeast
Alaska with highest abundance recorded in spring (N=5,381, CV= 25.4%), lower numbers in summer (N=2,680,
CV=19.6%), and lowest in fall (N=1,637, CV=23.3%). However, NMFS currently recognizes a single stock of Dall's
porpoise in Alaskan waters and an estimate of 83,400 Dall's porpoises is used by NMFS for the entire stock
(Muto et al., 2018).
[FR Doc. C1-2019-08848 Filed 5-8-19; 8:45 am]
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