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Persistence rates and detection probabilities of oiled king eider carcasses on St Paul Island, Alaska

Marine Pollution Bulletin

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,
DOI: 10.1016/S0025-326X(96)00153-1

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Abstract

Following an oil spill off St Paul Island, Alaska in February 1996, persistence rates and detection probabilities of oiled king eider (Somateria spectabilis) carcasses were estimated using the Cormack-Jolly-Seber model. Carcass persistence rates varied by day, beach type and sex, while detection probabilities varied by day and beach type. Scavenging, wave action and weather influenced carcass persistence. The patterns of persistence differed on rock and sand beaches and female carcasses had a different persistence function than males. Weather, primarily snow storms, and degree of carcass scavenging, diminished carcass detectability. Detection probabilities on rock beaches were lower and more variable than on sand beaches. The combination of persistence rates and detection probabilities can be used to improve techniques of estimating total mortality.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Persistence rates and detection probabilities of oiled king eider carcasses on St Paul Island, Alaska
Series title:
Marine Pollution Bulletin
DOI:
10.1016/S0025-326X(96)00153-1
Volume
34
Issue:
7
Year Published:
1997
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
522
Last page:
526
Number of Pages:
5