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Food and feeding habits of the king crab Paralithodes camtschatica near Kodiak Island, Alaska



Food and feeding habits of the king crab Paralithodes camtschatica near Kodiak Island, Alaska



Marine Biology (Berlin): 663: 243-250



Stomach contents from 809 king crabs, P. camtschatica (Tilesius), from 6 areas near Kodiak Island, Alaska, and 9 sampling periods (1978-1979) were examined quantitatively; 713 (88%) contained food. Mollusca (mainly the bivalves Nuculana spp., Nucula tenuis and Macoma spp.) and Crustacea (mainly barnacles) were the dominant food groups in terms of percentage wet weight and frequency of occurrence; fishes were the next most important group of prey. No significant differences in feeding between sexes occurred; but significant differences were apparent in the quantity of food consumed from different sampling periods, areas, depths, size groups and crab molt-classes. Consumption was greater in spring and summer and in offshore locations at depths of 126 to 150 m. In addition, king crabs < 140 mm carapace length (CL) consumed more food than crabs .gtoreq. 140 mm CL. Adult, newshell (individuals that molted during the last molting period) females greater than 95 mm CL, and newshell males greater than 100 mm CL, each contained more food than did juvenile, newshell females < 120 mm CL.

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Accession: 021054098

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