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Side-scan sonar assessment of gray whale feeding in the Bering Sea

Science

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Abstract

Side-scan sonar was used to map and measure feeding pits of the California gray whale over 22,000 square kilometers of the northeastern Bering Sea floor. The distribution of pits, feeding whales, ampeliscid amphipods (whale prey), and a fine-sand substrate bearing the amphipods were all closely correlated. The central Chirikov Basin and nearshore areas of Saint Lawrence Island supply at least 6.5 percent of the total gray whale food resource in summer. While feeding, the whales resuspend at least 1.2 x 108 cubic meters of sediment annually; this significantly affects the geology and biology of the region.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Side-scan sonar assessment of gray whale feeding in the Bering Sea
Series title:
Science
Volume
225
Issue:
4667
Year Published:
1984
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
1150
Last page:
1152
Number of Pages:
3