Assessment Of Net Entanglement On Northern Sea Lions In The Aleutian Islands 25 June 15 July 1985 PDF Download
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Author | : |
Publisher | : |
Total Pages | : 66 |
Release | : 1986 |
Genre | : Sea lions |
ISBN | : |
Download Assessment of Net Entanglement on Northern Sea Lions in the Aleutian Islands, 25 June-15 July 1985 Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 108 |
Release | : 1994 |
Genre | : Rare mammals |
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Download Recovery Plan for the Steller Sea Lion (Eumetopias Jubatus) Book in PDF, ePub and Kindle
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Total Pages | : 536 |
Release | : 1992 |
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Download Regulatory Impact/initial Flexibility Analysis of Proposed Inshore/offshore Allocation Alternatives, Amendment 18/23 to Groundfish, Bering Sea and Aleutian Islands Fisheries Management Plan (FMP) and Gulf of Alaska Groundfish Fisheries Management Plan (FMP) Book in PDF, ePub and Kindle
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Total Pages | : 620 |
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Genre | : Electronic journals |
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Download Marine Fisheries Review Book in PDF, ePub and Kindle
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Publisher | : |
Total Pages | : 188 |
Release | : 1998 |
Genre | : Fishery management |
ISBN | : |
Download Endangered Species Act, Section 7 Consultation Book in PDF, ePub and Kindle
Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 217 |
Release | : 2003-05-04 |
Genre | : Science |
ISBN | : 0309086329 |
Download Decline of the Steller Sea Lion in Alaskan Waters Book in PDF, ePub and Kindle
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.
Author | : United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Coast Guard and Navigation |
Publisher | : |
Total Pages | : 216 |
Release | : 1986 |
Genre | : Marine pollution |
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Download Plastic Pollution in the Marine Environment Book in PDF, ePub and Kindle
Author | : Thomas R. Loughlin |
Publisher | : |
Total Pages | : 60 |
Release | : 1987 |
Genre | : Sea lions |
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Download Report of the Workshop on the Status of Northern Sea Lions in Alaska Book in PDF, ePub and Kindle
Author | : |
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Total Pages | : 1314 |
Release | : 1990 |
Genre | : Fisheries |
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Download Proceedings of the Second International Conference on Marine Debris Book in PDF, ePub and Kindle
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Total Pages | : 830 |
Release | : 2004 |
Genre | : |
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Download 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 Book in PDF, ePub and Kindle