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Decline in sea otter (Enhydra lutris) populations along the Alaska Peninsula, 1986-2001.
Fishery Bulletin
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April 1, 2005|
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COPYRIGHT 2005 National Marine Fisheries Service. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group.
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Abstract--During the 1990s, sea otter (Enhydra lutris) counts in the Aleutian archipelago decreased by 70% throughout the archipelago between 1992 and 2000. Recent aerial surveys in the Aleutians did not identify the eastward extent of the decline; therefore we conducted an aerial survey along the Alaska Peninsula for comparison with baseline information. Since 1986, abundance estimates in offshore habitat have declined by 27-49% and 93-94% in northern and southern Alaska Peninsula study areas, respectively. During this same time period, sea otter density has declined by 63% along ...
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