Author: Earl F. BeckerPublisher:
ISBN:
Category : Steller's sea lion
Languages : en
Pages : 156
Book Description
Steller Sea Lion Recovery Investigations in Alaska, 1995-1996
Author: Earl F. BeckerPublisher:
ISBN:
Category : Steller's sea lion
Languages : en
Pages : 156
Book Description
Steller Sea Lion Investigations in Alaska, 1995-1996
Author: Earl F. BeckerPublisher:
ISBN:
Category : Steller's sea lion
Languages : en
Pages : 125
Book Description
Steller Sea Lion Recovery Investigations in Alaska, 1992-1994
Author: Kenneth W. PitcherPublisher:
ISBN:
Category : Steller's sea lion
Languages : en
Pages : 194
Book Description
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
Steller Sea Lion Protection Measures
Author: Steller Sea Lion and Northern Fur Seal Research
Author: Alaska Marine Mammal Stock Assessments, 1996
Author: P. S. HillPublisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 168
Book Description
"On April 30, 1994, Public Law 103-238 was enacted allowing significant changes to provisions within the Marine Mammal Protection Act (MMPA). Interactions between marine mammals and commercial fisheries are addressed under three new sections. This new regime replaced the interim exemption that has regulated fisheries-related incidental takes since 1988. Section 117, Stock Assessments, required the establishment of three regional scientific review groups to advise and report on the status of marine mammal stocks within Alaska waters, along the Pacific Coast (including Hawaii), and the Atlantic Coast (including the Gulf of Mexico). This report provides information on the marine mammal stocks of Alaska under the jurisdiction of the National Marine Fisheries Service"--Preface. [doi:10.7289/V5/TM-AFSC-78 (https://doi.org/10.7289/V5/TM-AFSC-78)]
Harbor Seal Investigations in Alaska, Annual Report
Author: Decline of the Steller Sea Lion in Alaskan Waters
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309168724
Category : Science
Languages : en
Pages : 216
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.
Author: