Last edited by Mikakinos
Sunday, May 10, 2020 | History

8 edition of The Decline of the Steller Sea Lion in Alaskan Waters found in the catalog.

The Decline of the Steller Sea Lion in Alaskan Waters

Untangling Food Webs and Fishing Nets

by Committee on the Alaska Groundfish Fishery and Steller Sea Lions

  • 230 Want to read
  • 23 Currently reading

Published by National Academies Press .
Written in English

    Subjects:
  • Applied ecology,
  • Earth Sciences,
  • Marine Ecology,
  • Marine Mammals,
  • Nature,
  • Science,
  • Sports,
  • Earth Sciences - General,
  • Wildlife,
  • Science / Environmental Science,
  • The Environment,
  • Life Sciences - Biology - Marine Biology,
  • Mammals

  • The Physical Object
    FormatPaperback
    Number of Pages216
    ID Numbers
    Open LibraryOL10358626M
    ISBN 100309086329
    ISBN 109780309086325

    Bottom-up forcing and the decline of Steller sea lions (Eumetopias jubatus) in Alaska: assessing the ocean climate hypothesis ANDREW W. TRITES,1 ARTHUR J. MILLER,2,* HERBERT D. G. MASCHNER,3 MICHAEL A. ALEXANDER,4 STEVEN J. BOGRAD,5 JOHN A. CALDER,6 ANTONIETTA CAPOTONDI,4 KENNETH O. COYLE,7 EMANUELE DI LORENZO,8 BRUCE P. FINNEY,7 EDWARD . Steller sea lions occur throughout the North Pacific Ocean rim from Japan to southern California ().They occur at numerous breeding sites (rookeries) in the Russian Far East, Alaska, and British Columbia, with lower numbers in Oregon and California. Washington is the only western coastal state that does not contain a Steller sea lion rookery, although pups were counted at several haul-out Cited by: 9.

    Sea lions now rely on pollock as a main dietary source. This diet switch may be a contributing factor in the decline of the sea lion as pollock lacks the oil critical to the maintenance of sea lion blubber. Reproduction and Young Female Steller sea lions are sexually mature at four to six years of age. Steller's sea cow (Hydrodamalis gigas) is an extinct sirenian described by Georg Wilhelm Steller in At that time, it was found only around the Commander Islands in the Bering Sea between Alaska and Russia; its range was more extensive during the Pleistocene epoch, and it is possible that the animal and humans previously 18th-century adults would have reached weights of 8 Class: Mammalia.

    The Steller's Sea Lion is named for the male's bulky neck, which resembles a lion's mane. Listen for females subtly calling their own pups from among hundreds of others.   Sea lion pups rest on an Aleutian Beach. (Photo courtesy NOAA) Scientists have finished another research season without solving the year-old mystery of the Steller sea lion decline in the.


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The Decline of the Steller Sea Lion in Alaskan Waters by Committee on the Alaska Groundfish Fishery and Steller Sea Lions Download PDF EPUB FB2

Decline of the Steller Sea Lion in Alaskan Waters Untangling Food Webs and Fishing Nets () Buy Now: $ Download Free PDF Read Online. Embed. Decline of the Steller Sea Lion in Alaskan Waters Untangling Food Webs and Fishing Nets (). Buy Decline of the Steller Sea Lion in Alaskan Waters: Untangling Food Webs and Fishing Nets on FREE SHIPPING on qualified ordersPrice: $ Buy Decline of the Steller Sea Lion in Alaskan Waters (): Untangling Food Webs and Fishing Nets: NHBS - National Research Council, National Academies Press (NAP).

Decline of the Steller Sea Lion in Alaskan Waters: Untangling Food Webs and Fishing Nets. Washington, DC: The National Academies Press. doi: / Washington, DC: The National Academies Press.

doi: / The Decline of the Steller Sea Lion in Alaskan Waters: Untangling Food Webs and Fishing Nets Gordon H. Kruse, Ph.D. Member, Committee on the Alaska Groundfish Fishery and Steller Sea Lions The study was overseen by the Ocean Studies Board and the Polar Research Board of the National Research Council The study was sponsored by the North Pacific.

Steller sea lions are found along the North Pacific rim from California to Japan with about 70% of the population living in Alaskan waters. The Alaskan population declined precipitously during the s and s and continued to decline at a slower rate during the s.

Decline of the Steller Sea Lion in Alaskan Waters by National Research Council,available at Book Depository with free delivery worldwide. The Decline of the Steller Sea Lion in Alaskan Waters Untangling Food Webs and Fishing Nets Steller sea lions live in the North Pacific with about 70% living in Alaskan waters.

The number of Steller sea lions in Alaskan waters has dropped by more than 80% in the past three Size: KB. Search Results for "decline-of-the-steller-sea-lion-in-alaskan-waters" Decline of the Steller Sea Lion in Alaskan Waters National Research Council,Division on Earth and Life Studies,Polar Research Board,Ocean Studies Board,Committee on the Alaska Groundfish Fishery and Steller Sea Lions — Science.

The decline of Steller sea lions Eumetopias jubatus in Alaska: a review of the nutritional stress hypothesis A. TRITES and C. DONNELLY Marine Mammal Research Unit, Fisheries Centre, University of British Columbia, Main Mall, Vancouver, B.C., Canada V6T 1Z4 ABSTRACT 1.

The decline of Steller sea lions Eumetopias jubatus. For an unknown reason, the Steller sea lion population in Alaska has declined by 80% over the past three decades.

Inthe National Research Council began a study to assess the many hypotheses proposed to explain the sea lion decline including insufficient food due to fishing or the late s climate/regime shift, a disease epidemic, pollution, illegal shooting, subsistence harvest, and.

Decline of the Steller Sea Lion in Alaskan Waters: Untangling Food Webs and Fishing Nets: : Committee on the Alaska Groundfish Fishery and Steller Sea Lions, Ocean Studies Board, Polar Research Board, Division on Earth and Life Studies, National Research Council, National Academy of Sciences: Libros en idiomas extranjerosFormat: Tapa blanda.

Efficacy of trawl fishery exclusion zones in maintaining prey availability for Steller sea lions: Description of Atka mackerel tagging project in Seguam Pass, Aleutian Islands, Alaska, in and Pp.

in Steller Sea Lion Investigations, B.S. Fadely, ed. AFSC Processed ReportNational Marine Fisheries Service, Alaska Fishery. Buy Decline of the Steller Sea Lion in Alaskan Waters: Untangling Food Webs and Fishing Nets by Committee on the Alaska Groundfish Fishery and Steller Sea Lions, Ocean Studies Board, Polar Research Board, Division on Earth and Life Studies, National Research Council, National Academy of Sciences (ISBN: ) from Amazon's Book Store.

During the late 20th century, the western Alaska Steller sea lion population (the Gulf of Alaska and Aleutian Islands) suffered a substantial decline, but there are signs of stabilization in recent years. The first population trend counts made in estimated at leastsea lions in this area.

Since the s, the most significant drop in numbers occurred in the eastern Aleutian Islands and the western Gulf of Alaska. The extent of this decline led National Marine Fisheries Service (NMFS) to list the Steller sea lion as threatened range-wide under the Endangered Species Act (ESA) in April Decline of the Steller Sea Lion in Alaskan Waters: Nat'L Acad Pres, Nat'L Acad Pres: Books - In contrast, nutritional stress alone was the leading hypothesis for the cause of a steep decline in Steller sea lions in the s.

This book has 13 extended research abstracts, presented at the May workshop "Is it Food II." Attendees included the nation's leading authorities on Alaska's Steller sea lions.

Get this from a library. Decline of the Steller sea lion in Alaskan waters: untangling food webs and fishing nets. [National Research Council (U.S.). Committee on the Alaska Groundfish Fishery and Steller Sea Lions.;].

Aerial and shipbased surveys of Steller sea lions (Eumetopias jubatus) conducted in Alaska in June-July throughand an update on the status and trend of the western distinct population segm Hennen, D.

Associations between the Alaska Steller sea lion decline and commercial fisheries. Ecological Applications 16(2)File Size: KB. The number of Steller sea lions in Alaskan waters has dropped by more than 80 percent in the past three decades.

Those living in the western Gulf of Alaska, around the Aleutian Islands, and in the eastern Bering Sea continue to decline and were listed as endangered in The Steller sea lion (Eumetopias jubatus), also known as the Steller's sea lion and "northern sea lion", is a near-threatened species of sea lion in the northern is the sole member of the genus Eumetopias and the largest of the eared seals (Otariidae).

Among pinnipeds, it is inferior in size only to the walrus and the two species of elephant : Mammalia. Sea Lions Decline In Alaska Waters.

Novem / PM / CBS/AP The survey found that Steller sea lion numbers in the western population are either stable or .