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Decline of the Steller Sea Lion in Alaskan Waters (Paperback)

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Book Title
Decline of the Steller Sea Lion in Alaskan Waters
Title
Decline of the Steller Sea Lion in Alaskan Waters
Subtitle
Untangling Food Webs and Fishing Nets
ISBN-10
0309086329
EAN
9780309086325
ISBN
9780309086325
Genre
Science Nature & Math
Release Date
04/05/2003
Release Year
2003
Country/Region of Manufacture
US
Item Length
152mm
Publication Year
2003
Type
Textbook
Format
Paperback
Language
English
Publication Name
Decline of the Steller Sea Lion in Alaskan Waters: Untangling Food Webs and Fishing Nets
Item Height
229mm
Author
Division on Earth and Life Studies, Ocean Studies Board, Committee on the Alaska Groundfish Fishery and Steller Sea Lions, National Research Council, Polar Research Board
Publisher
National Academies Press
Item Width
152mm
Subject
Geography & Geosciences, Geology
Number of Pages
216 Pages

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Product Information

For an unknown reason, the Steller sea lion population in Alaska has declined by 80% over the past three decades. In 2001, the 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 1970s climate/regime shift, a disease epidemic, pollution, illegal shooting, subsistence harvest, and predation by killer whales or sharks. The report's analysis indicates that the population decline cannot be explained only by a decreased availability of food; hence other factors, such as predation and illegal shooting, deserve further study. The report recommends a management strategy that could help determine the impact of fisheries on sea lion survival-establishing open and closed fishing areas around sea lion rookeries. This strategy would allow researchers to study sea lions in relatively controlled, contrasting environments. Experimental area closures will help fill some short-term data gaps, but long-term monitoring will be required to understand why sea lions are at a fraction of their former abundance.

Product Identifiers

Publisher
National Academies Press
ISBN-13
9780309086325
eBay Product ID (ePID)
88311833

Product Key Features

Author
Division on Earth and Life Studies, Ocean Studies Board, Committee on the Alaska Groundfish Fishery and Steller Sea Lions, National Research Council, Polar Research Board
Publication Name
Decline of the Steller Sea Lion in Alaskan Waters: Untangling Food Webs and Fishing Nets
Format
Paperback
Language
English
Subject
Geography & Geosciences, Geology
Publication Year
2003
Type
Textbook
Number of Pages
216 Pages

Dimensions

Item Height
229mm
Item Width
152mm

Additional Product Features

Title_Author
Committee on the Alaska Groundfish Fishery and Steller Sea Lions, Polar Research Board, Division on Earth and Life Studies, Ocean Studies Board, National Research Council
Country/Region of Manufacture
United States

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