Aerial And Land Based Surveys Of Steller Sea Lions Eumetopias Jubatus In Alaska June And July 1999 And 2000

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Aerial And Land Based Surveys Of Steller Sea Lions Eumetopias Jubatus In Alaska June And July 1999 And 2000

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Author : John L. Sease
language : en
Publisher:
Release Date : 2001

Aerial And Land Based Surveys Of Steller Sea Lions Eumetopias Jubatus In Alaska June And July 1999 And 2000 written by John L. Sease and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Mammal populations categories.

Steller Sea Lion And Northern Fur Seal Research

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Author :
language : en
Publisher:
Release Date : 2007

Steller Sea Lion And Northern Fur Seal Research written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

Steller Sea Lion And Northern Fur Seal Research Purpose And Need Alternatives Affected Environment Environmental Consequences National Environmental Policy Act Compliance Implementation And Recommendations List Of Preparers List Of Agencies Organizations And Persons Whom The Draft Eis Was Sent References Index

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Author : United States. National Marine Fisheries Service. Office of Protected Resources. Permits Division
language : en
Publisher:
Release Date : 2007

Steller Sea Lion And Northern Fur Seal Research Purpose And Need Alternatives Affected Environment Environmental Consequences National Environmental Policy Act Compliance Implementation And Recommendations List Of Preparers List Of Agencies Organizations And Persons Whom The Draft Eis Was Sent References Index written by United States. National Marine Fisheries Service. Office of Protected Resources. Permits Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Northern fur seal categories.

Glacier Bay National Park N P And Preserve Vessel Quotas And Operating Requirements

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Author :
language : en
Publisher:
Release Date : 2003

Glacier Bay National Park N P And Preserve Vessel Quotas And Operating Requirements written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

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

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Author :
language : en
Publisher:
Release Date : 2004

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 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

Steller Sea Lion Protection Measures

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Author :
language : en
Publisher:
Release Date : 2001

Steller Sea Lion Protection Measures written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.

Tongass National Forest N F Kensington Gold Project

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Author :
language : en
Publisher:
Release Date : 2004

Tongass National Forest N F Kensington Gold Project written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

Decline Of The Steller Sea Lion In Alaskan Waters

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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2003-05-04

Decline Of The Steller Sea Lion In Alaskan Waters written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-05-04 with Science categories.

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

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Author :
language : en
Publisher:
Release Date :

Marine Fisheries Review written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Electronic journals categories.

Ring Of Fire Resource Management Plan

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Author :
language : en
Publisher:
Release Date : 2005

Ring Of Fire Resource Management Plan written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.