Author: Morgen CrowPublisher:
ISBN:
Category : Fishery management
Languages : en
Pages : 124
Book Description
A Review of Proposed Fishery Management Actions and the Decline of Steller Sea Lions Eumetopias Jubatus in Alaska
Author: Morgen CrowPublisher:
ISBN:
Category : Fishery management
Languages : en
Pages : 124
Book Description
Decline of the Steller Sea Lion in Alaskan Waters
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309086329
Category : Science
Languages : en
Pages : 217
Book Description
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.
Marine Fisheries Review
Author: Steller Sea Lion Protection Measures
Author: Recovery Plan for the Steller Sea Lion (Eumetopias Jubatus)
Author: Programmatic Supplemental EIS for Alaska Groundfish Fisheries Implemented Under the Authority of the Fishery Management Plans for the Groundfish Fishery of the Gulf of Alaska and the Groundfish of the Bering Sea and Aleutian Islands Area
Author: Draft Environmental Impact Statement
Author: United States. Bureau of Land Management. Alaska State OfficePublisher:
ISBN:
Category : Alaska
Languages : en
Pages : 438
Book Description
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Author: 
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