Last edited by Kazrashicage
Friday, July 10, 2020 | History

2 edition of Aerial surveys of endangered whales in the Beaufort, Chukchi, & northern Bering seas found in the catalog.

Aerial surveys of endangered whales in the Beaufort, Chukchi, & northern Bering seas

Aerial surveys of endangered whales in the Beaufort, Chukchi, & northern Bering seas

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  • 33 Currently reading

Published by Naval Ocean Systems Center in San Diego, Calif .
Written in English

    Subjects:
  • Bowhead whale -- Alaska.,
  • Beaufort Sea.

  • Edition Notes

    StatementD.K. Ljungblad ... [et al.] ; prepared for Bureau of Land Management, Department of Interior.
    SeriesTechnical document / Naval Ocean Systems Center -- 486., Technical document (Naval Ocean Systems Center (U.S.)) -- 486.
    ContributionsLjungblad, D. K., United States. Bureau of Land Management., Naval Ocean Systems Center (U.S.)
    The Physical Object
    FormatMicroform
    Pagination410 p. in various pagings
    Number of Pages410
    ID Numbers
    Open LibraryOL14243186M

    Alaska's dynamic, often ice-covered seas are home to a remarkable diversity of life—crustaceans, fish, seals, sea lions, porpoises, whales, and more. Few places in the world offer such beauty and bounty. This region of nearly million square miles includes waters in the Gulf of Alaska, Bering Sea, Aleutian Islands, Chukchi Sea, and. Bowhead whales, Balaena mysticetus, in the Bering-Chukchi-Beaufort (BCB) population, experience a variable acoustic environment among the regions they inhabit throughout the year. A total of 41, h of acoustic data were recorded from 1 August through 4 October at 20 sites spread along a km transect from the Bering Sea to the.

      Estimate of abundance of the Beringi-Chukchi-Beaufort Seas bowhead whale population. Pap. SC/65a/BRG1 pres. to IWC Sci. Committee, May , 30 p. Table Survey days, flight hours, and percent time spent on effort on trackline (in parentheses) during BOWFEST aerial surveys, late August to mid-September during the period Eastern North Pacific Gray Whales and Minke Whales from Aerial Surveys in the Alaskan Arctic, Summer and Fall Abstract Aerial surveys were conducted in the northeastern Chukchi Sea from mid-June to late October, , as part of the Aerial Surveys of Arctic Marine Mammals project funded by the Bureau of Ocean Energy Management.

    (). Aerial surveys of endangered whales in the Beaufort, Chukchi, and northern Bering seas. (). Aerial surveys to determine the distribution and number of polar whales, gray whales and beluga whales in the Sea of Okhotsk in – The Bering-Chukchi-Beaufort population was probably the last to be commercially exploited and hunting ceased only when it became unprofitable in the early 20th century. In the Bering-Chukchi-Beaufort population was estimated at 12, whales (95% CI 7,,), excluding calves (Koski et al. ). Assuming a stock size of approximately.


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Aerial surveys of endangered whales in the Beaufort, Chukchi, & northern Bering seas Download PDF EPUB FB2

Aerial surveys in the northern Bering and southern Chukchi Seas ( degrees N, east of the International Date Line) were conducted by MMS (now BOEMRE) contractors from The goal of these surveys was to investigate the distribution, abundance, migration timing, habitat relationships and behavior of endangered whales during the.

southern Chukchi Sea and northern Bering Sea east of the International Date Line (IDL) between late summer and autumn is particularly scarce. Aerial surveys have occasionally been conducted in this area since as one component of a larger survey & northern Bering seas book for endangered whales in the Beaufort, Chukchi and Bering Seas.

This paper. @article{osti_, title = {Aerial surveys of endangered whales in the Alaskan Chukchi and western Beaufort Seas, Final report, Oct-Nov 90}, author = {Moore, S.E. and Clarke, J.T.}, abstractNote = {In keeping with the National Environmental Policy Act (), the Marine Mammal Protection Act () and the Endangered Species Act (), the OCS Lands Act Amendments () established.

Seas: Protecting America’s Arctic On the Beaufort and Chukchi Seas on Alaska’s Arctic coast, sea ice Chukchi the northern edge of the continent and animals concentrate in great numbers.

Aerial surveys of endangered whales in the northern Bering, eastern Chukchi, and Alaskan Beaufort Seas, with a seven year review, OCS Study. Aerial surveys and acoustic recordings of bowhead whales and other marine mammals were made from 17 April to 4 November in the Beaufort, Chukchi, and Bering Seas.

Bering Sea, as well the entire Chukchi Sea and the southern Beaufort Sea (Maps 2–4). Although the whaleships 4Few right whales were taken in the B-C-B fish-ery, although they were sought in the southeast-ern Bering Sea from time to time.

The whalemen made clear distinctions between bowheads and right whales. RESEARCH ARTICLE Habitat selection by two beluga whale populations in the Chukchi and Beaufort seas Donna D. Hauser1,2*, Kristin L. Laidre1,2, Harry L.

Stern2, Sue E. Moore3, Robert S. Suydam4, Pierre R. Richard5 1 School of Aquatic & Fishery Sciences, University of Washington, Seattle, WA, United States of America, 2 Polar Science Center, Applied Physics Laboratory, University of. Aerial Surveys of Endangered Whales in the Beaufort Sea, Fall Annual Report, OCS Study BOEMRE National Marine Mammal Laboratory, Alaska Fisheries Science Center, NMFS, NOAA, Sand Point Way NE, F/AKC3, Seattle, WA Email of corresponding authors: @ and [email protected] Aerial Surveys of Endangered Whales, Northern Bering, Chukchi and Beaufort Seas (includes IA/ award of $,) Aerial Surveys of Endangered Whales in the Beaufort Sea and Aerial Surveys of Walrus Populations.

Assessment of the U.S. Outer Continental Shelf Environmental Studies Program reviews the ecological studies done by. § Fin, humpback, and minke whales occur in the northern Bering Sea (Moore et al., ) and there is ample evidence of historical occurrence in the western Chukchi Sea, but there are relatively few records for the eastern Chukchi Sea (summarized in Clarke et al., ).

New photo-identi cation data were collected from a aerial survey of Bering-Chukchi-Beaufort Seas bowhead whales. We scored and matched these images to existing images from, and Other interyear comparisons between this set of years were also conducted to generate a complete matching matrix for the 6 Size: KB.

projects spanning several decades. Researchers conducting aerial surveys for bowhead whales in the Beaufort and Chukchi Seas and Baffin Bay during the mid-to-late ’s noted that many of the whales that they saw had readily recognizable marks on them, and they photographed whales through windows in the side of the aircraft.

In AugustAudubon Alaska and Oceana completed the Ecological Atlas of the Bering, Chukchi, and Beaufort Seas. This comprehensive, broad-scale atlas synthesizes data from the Aleutian Islands to the Beaufort Sea and contains over beautiful maps.

Abstract. The report summarizes the investigations of the distribution, abundance, migration timing and route, behavior, and habitat relationships of endangered whales in the Alaskan Chukchi and western Beaufort seas (hereafter, study area); was the third year of a three year () study.

Chukchi Sea (Russian: Чуко́тское мо́ре, tr. Chukotskoye more, IPA: [tɕʊˈkotskəjə ˈmorʲɪ]), sometimes referred to as the Chuuk Sea, Chukotsk Sea or the Sea of Chukotsk, is a marginal sea of the Arctic is bounded on the west by the Long Strait, off Wrangel Island, and in the east by Point Barrow, Alaska, beyond which lies the Beaufort countries: Russia, United States.

(white whales), Delphinapterus leucas (e.g. Tomilin ; Kleinenberg et. ), there are no published records of such occurrences in the waters off Alaska. We present observations of Polar Bear predation on Beluga Whales in the Bering and Chukchi seas, File Size: 4MB.

Setting). Barrow Canyon, where the Beaufort and Chukchi Seas meet, attracts high densities of many species of marine mammals and birds, and is particularly renowned for the large groups of bowhead whales (Balaena mysticetus) that frequent the area to feed on the proliferation of krill (Citta et al.

), described in Chapter 6 (Mammals). Wrangel. 1 Bering-Chukchi-Beaufort Stock of Bowhead Whales: – Satellite Telemetry Results with Some Observations on Stock Sub-Structure. Lori Quakenbush 1, John Citta, John C. George2,Mads Peter Heide-Jørgensen3, Harry Brower4, Lois Harwood5, Billy Adams2, Charles Pokiak6, and James Pokiak6, Ellen Lea5.

1Alaska Department of Fish and Game, Fairbanks AK, USA,File Size: 1MB. In recent PAM revealed that the period of fin whale calls detection changes latitudinally; all year round in the southeastern Bering Sea (Stafford et al., ), from July to September in the southern Chukchi Sea (Clarke et al., ), and from August to October in the northern Chukchi Sea (Delarue et al., ; Crance et al., ), although Cited by: 7.

in the south and from Bristol Bay north through the Bering and Chukchi Seas and across the Beaufort Sea to Canada. O’Corry-Crowe et al.

() identify five beluga stocks in Alaska, one of which is shared with Canada, and one or more of which may be shared with Russia. The present study examines the Norton Sound, Kotzebue Sound, and East.Few surveys have been conducted for large whales in the southern Chukchi Sea, in part because other areas have been of higher priority for funding due to oil and gas industry interests.

For example, in the northeastern Chukchi and western Beaufort seas, aerial surveys for .The Ecological Atlas of the Bering, Chukchi, and Beaufort Seas features around maps, showing how whales, humans, birds, and other species make use of the waters around Alaska.

The atlas was published by Audubon Alaska, and the maps make heavy use of their two main brand typefaces: Granjon and Gill basemap information was set in Granjon, and the thematic layers were set in Gill .