Ecological characteristics of core-use areas used by Bering–Chukchi–Beaufort (BCB) bowhead whales, 2006–2012
The article of record as published may be found at http://dx.doi.org/10.1016/j.pocean.2014.08.012 The Bering–Chukchi–Beaufort (BCB) population of bowhead whales (Balaena mysticetus) ranges across the seasonally ice-covered waters of the Bering, Chukchi, and Beaufort seas. We used locations from 54 b...
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ftnavalpschool:oai:calhoun.nps.edu:10945/66159 2024-06-09T07:38:21+00:00 Ecological characteristics of core-use areas used by Bering–Chukchi–Beaufort (BCB) bowhead whales, 2006–2012 Citta, John J. Quakenbush, Lori T. Okkonen, Stephen R. Druckenmiller, Matthew L. Maslowski, Wieslaw Clement-Kinney, Jaclyn George, John C. Brower, Harry Small, Robert J. Ashjian, Carin J. Harwood, Lois A. Heide-Jørgensen, Mads Peter Naval Postgraduate School (U.S.) Oceanography 2015 22 p. application/pdf https://hdl.handle.net/10945/66159 unknown Elsevier Citta, John J., et al. "Ecological characteristics of core-use areas used by Bering–Chukchi–Beaufort (BCB) bowhead whales, 2006–2012." Progress in Oceanography 136 (2015): 201-222. https://hdl.handle.net/10945/66159 This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. Article 2015 ftnavalpschool 2024-05-15T00:39:30Z The article of record as published may be found at http://dx.doi.org/10.1016/j.pocean.2014.08.012 The Bering–Chukchi–Beaufort (BCB) population of bowhead whales (Balaena mysticetus) ranges across the seasonally ice-covered waters of the Bering, Chukchi, and Beaufort seas. We used locations from 54 bowhead whales, obtained by satellite telemetry between 2006 and 2012, to define areas of concen- trated use, termed ‘‘core-use areas’’. We identified six primary core-use areas and describe the timing of use and physical characteristics (oceanography, sea ice, and winds) associated with these areas. In spring, most whales migrated from wintering grounds in the Bering Sea to the Cape Bathurst polynya, Canada (Area 1), and spent the most time in the vicinity of the halocline at depths <75 m, which are within the euphotic zone, where calanoid copepods ascend following winter diapause. Peak use of the polynya occurred between 7 May and 5 July; whales generally left in July, when copepods are expected to descend to deeper depths. Between 12 July and 25 September, most tagged whales were located in shallow shelf waters adjacent to the Tuktoyaktuk Peninsula, Canada (Area 2), where wind-driven upwelling promotes the concentration of calanoid copepods. Between 22 August and 2 November, whales also congregated near Point Barrow, Alaska (Area 3), where east winds promote upwelling that moves zooplankton onto the Beaufort shelf, and subsequent relaxation of these winds promoted zooplankton aggregations. Between 27 October and 8 January, whales congregated along the northern shore of Chukotka, Russia (Area 4), where zooplankton likely concentrated along a coastal front between the southeastward-flow- ing Siberian Coastal Current and northward-flowing Bering Sea waters. The two remaining core-use areas occurred in the Bering Sea: Anadyr Strait (Area 5), where peak use occurred between 29 November and 20 April, and the Gulf of Anadyr (Area 6), where peak use occurred between 4 December and 1 April; both areas exhibited highly ... Article in Journal/Newspaper Anadyr Anadyr' Balaena mysticetus Barrow Bering Sea Cape Bathurst Chukchi Chukotka Point Barrow Sea ice Alaska Copepods ice covered waters Naval Postgraduate School: Calhoun Anadyr ENVELOPE(177.510,177.510,64.734,64.734) Anadyr’ ENVELOPE(176.233,176.233,64.882,64.882) Beaufort Shelf ENVELOPE(-142.500,-142.500,70.000,70.000) Bering Sea Canada Cape Bathurst ENVELOPE(-128.068,-128.068,70.579,70.579) Tuktoyaktuk ENVELOPE(-133.006,-133.006,69.425,69.425) Tuktoyaktuk Peninsula ENVELOPE(-131.339,-131.339,69.750,69.750) |
institution |
Open Polar |
collection |
Naval Postgraduate School: Calhoun |
op_collection_id |
ftnavalpschool |
language |
unknown |
description |
The article of record as published may be found at http://dx.doi.org/10.1016/j.pocean.2014.08.012 The Bering–Chukchi–Beaufort (BCB) population of bowhead whales (Balaena mysticetus) ranges across the seasonally ice-covered waters of the Bering, Chukchi, and Beaufort seas. We used locations from 54 bowhead whales, obtained by satellite telemetry between 2006 and 2012, to define areas of concen- trated use, termed ‘‘core-use areas’’. We identified six primary core-use areas and describe the timing of use and physical characteristics (oceanography, sea ice, and winds) associated with these areas. In spring, most whales migrated from wintering grounds in the Bering Sea to the Cape Bathurst polynya, Canada (Area 1), and spent the most time in the vicinity of the halocline at depths <75 m, which are within the euphotic zone, where calanoid copepods ascend following winter diapause. Peak use of the polynya occurred between 7 May and 5 July; whales generally left in July, when copepods are expected to descend to deeper depths. Between 12 July and 25 September, most tagged whales were located in shallow shelf waters adjacent to the Tuktoyaktuk Peninsula, Canada (Area 2), where wind-driven upwelling promotes the concentration of calanoid copepods. Between 22 August and 2 November, whales also congregated near Point Barrow, Alaska (Area 3), where east winds promote upwelling that moves zooplankton onto the Beaufort shelf, and subsequent relaxation of these winds promoted zooplankton aggregations. Between 27 October and 8 January, whales congregated along the northern shore of Chukotka, Russia (Area 4), where zooplankton likely concentrated along a coastal front between the southeastward-flow- ing Siberian Coastal Current and northward-flowing Bering Sea waters. The two remaining core-use areas occurred in the Bering Sea: Anadyr Strait (Area 5), where peak use occurred between 29 November and 20 April, and the Gulf of Anadyr (Area 6), where peak use occurred between 4 December and 1 April; both areas exhibited highly ... |
author2 |
Naval Postgraduate School (U.S.) Oceanography |
format |
Article in Journal/Newspaper |
author |
Citta, John J. Quakenbush, Lori T. Okkonen, Stephen R. Druckenmiller, Matthew L. Maslowski, Wieslaw Clement-Kinney, Jaclyn George, John C. Brower, Harry Small, Robert J. Ashjian, Carin J. Harwood, Lois A. Heide-Jørgensen, Mads Peter |
spellingShingle |
Citta, John J. Quakenbush, Lori T. Okkonen, Stephen R. Druckenmiller, Matthew L. Maslowski, Wieslaw Clement-Kinney, Jaclyn George, John C. Brower, Harry Small, Robert J. Ashjian, Carin J. Harwood, Lois A. Heide-Jørgensen, Mads Peter Ecological characteristics of core-use areas used by Bering–Chukchi–Beaufort (BCB) bowhead whales, 2006–2012 |
author_facet |
Citta, John J. Quakenbush, Lori T. Okkonen, Stephen R. Druckenmiller, Matthew L. Maslowski, Wieslaw Clement-Kinney, Jaclyn George, John C. Brower, Harry Small, Robert J. Ashjian, Carin J. Harwood, Lois A. Heide-Jørgensen, Mads Peter |
author_sort |
Citta, John J. |
title |
Ecological characteristics of core-use areas used by Bering–Chukchi–Beaufort (BCB) bowhead whales, 2006–2012 |
title_short |
Ecological characteristics of core-use areas used by Bering–Chukchi–Beaufort (BCB) bowhead whales, 2006–2012 |
title_full |
Ecological characteristics of core-use areas used by Bering–Chukchi–Beaufort (BCB) bowhead whales, 2006–2012 |
title_fullStr |
Ecological characteristics of core-use areas used by Bering–Chukchi–Beaufort (BCB) bowhead whales, 2006–2012 |
title_full_unstemmed |
Ecological characteristics of core-use areas used by Bering–Chukchi–Beaufort (BCB) bowhead whales, 2006–2012 |
title_sort |
ecological characteristics of core-use areas used by bering–chukchi–beaufort (bcb) bowhead whales, 2006–2012 |
publisher |
Elsevier |
publishDate |
2015 |
url |
https://hdl.handle.net/10945/66159 |
long_lat |
ENVELOPE(177.510,177.510,64.734,64.734) ENVELOPE(176.233,176.233,64.882,64.882) ENVELOPE(-142.500,-142.500,70.000,70.000) ENVELOPE(-128.068,-128.068,70.579,70.579) ENVELOPE(-133.006,-133.006,69.425,69.425) ENVELOPE(-131.339,-131.339,69.750,69.750) |
geographic |
Anadyr Anadyr’ Beaufort Shelf Bering Sea Canada Cape Bathurst Tuktoyaktuk Tuktoyaktuk Peninsula |
geographic_facet |
Anadyr Anadyr’ Beaufort Shelf Bering Sea Canada Cape Bathurst Tuktoyaktuk Tuktoyaktuk Peninsula |
genre |
Anadyr Anadyr' Balaena mysticetus Barrow Bering Sea Cape Bathurst Chukchi Chukotka Point Barrow Sea ice Alaska Copepods ice covered waters |
genre_facet |
Anadyr Anadyr' Balaena mysticetus Barrow Bering Sea Cape Bathurst Chukchi Chukotka Point Barrow Sea ice Alaska Copepods ice covered waters |
op_relation |
Citta, John J., et al. "Ecological characteristics of core-use areas used by Bering–Chukchi–Beaufort (BCB) bowhead whales, 2006–2012." Progress in Oceanography 136 (2015): 201-222. https://hdl.handle.net/10945/66159 |
op_rights |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. |
_version_ |
1801371632666673152 |