Distribution, age, and sex composition of sea otter carcasses recovered during the response to the T/V Exxon Valdez oil spill

Biological Report 90(12)
By:  and 
Edited by: Keith Bayha and Jennifer Kormendy

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Abstract

Nearly 900 sea otter (Enhydra lutris) carcasses were recovered in or adjacent to coastal areas affected by the T/V Exxon Valdez oil spill. The time of carcass recovery and the condition of carcasses indicate that most oil spill-induced mortality occurred early in the response period. In fact, by 19 May about 70% of the carcasses had been found. The majority of the carcasses (56%) were from Prince William Sound, suggesting that mortality was more acute there than in other geographic areas. Examination of the recovered carcasses indicated that more adult female sea otters were killed by the oil in Prince William Sound and along the Kenai Peninsula than other sex and age cohorts, reflecting greater abundance of adult females in those regions. Many of the adult females in those areas were pregnant or lactating. Pups made up a higher proportion of the carcasses collected in the western portion of the spill zone, reflecting the advanced pupping chronology at the time the search effort reached the Alaska Peninsula and the Kodiak Archipelago.

Publication type Conference Paper
Publication Subtype Conference Paper
Title Distribution, age, and sex composition of sea otter carcasses recovered during the response to the T/V Exxon Valdez oil spill
Series title Biological Report
Series number 90(12)
DOI 10.5962/bhl.title.45854
Year Published 1990
Language English
Publisher U.S. Fish and Wildlife Service
Publisher location Anchorage, AK
Contributing office(s) Alaska Science Center
Description 6 p.
Larger Work Type Report
Larger Work Subtype Federal Government Series
Larger Work Title Sea otter symposium: Proceedings of a symposium to evaluate the response effort on behalf of sea otters after the T/V Exxon Valdez oil spill into Prince William Sound (Biological Reports 90[12])
First page 124
Last page 129
Conference Title Sea Otter Symposium: Symposium to evaluate the response effort on behalf of sea otters after the T/V Exxon Valdez oil spill into Prince William Sound
Conference Location Anchorage, AK
Conference Date April 17-19, 1990
Country United States
State Alaska
Other Geospatial Prince William Sound
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