Author: John L. SeasePublisher:
ISBN:
Category : Mammal populations
Languages : en
Pages : 45
Book Description
Aerial and Land-based Surveys of Steller Sea Lions (Eumetopias Jubatus) from the Western Stock in Alaska, June and July 2001 and 2002
Author: John L. SeasePublisher:
ISBN:
Category : Mammal populations
Languages : en
Pages : 45
Book Description
Aerial and Land-based Surveys of Steller Sea Lions (Eumetopias Jubatus) in Alaska, June and July 1999 and 2000
Author: John L. SeasePublisher:
ISBN:
Category : Mammal populations
Languages : en
Pages : 130
Book Description
Steller Sea Lion and Northern Fur Seal Research
Author: 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
Author: United States. National Marine Fisheries Service. Office of Protected Resources. Permits DivisionPublisher:
ISBN:
Category : Northern fur seal
Languages : en
Pages : 1124
Book Description
Aerial, Ship, and Land-based Surveys of Steller Sea Lions (Eumetopias Jubatus) in the Western Stock in Alaska, June and July 2003 and 2004
Author: Lowell W. FritzPublisher:
ISBN:
Category : Mammal surveys
Languages : en
Pages : 56
Book Description
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: Tongass National Forest (N.F.), Kensington Gold Project
Author: 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.
Aerial and Land-based Surveys of Steller Sea Lions (Eumetopias Jubatus) in Alaska, June and July 1996
Author: Aerial and Ship-based Surveys of Steller Sea Lions (Eumetopias Jubatus) in Southeast Alaska, the Gulf of Alaska, and Aleutian Islands During June and July 1994
Author: J. Michael StrickPublisher:
ISBN:
Category : Steller's sea lion
Languages : en
Pages : 74
Book Description