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Feeding of the king crab paralithodes camtschatica and snow crabs chionoecetes bairdi and chionoecetes opilio in the southeast bering sea

Tarverdieva, M.I.

Biologiya Morya (Vladivostok) (1): 41-48

1976

ISSN/ISBN: 0134-3475
Accession: 005454041
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P. camtschatica (Tilesius), C. bairdi Rathbun and C. opilio (Fabricius) differ in food habits. The main food species of adult king crabs were echinoderms and bivalves. Adult C. bairdi, inhabiting the same general areas as the king crab, eat mainly polychaetes (60-70%). Young C. bairdi eat bivalves (63%). Commerical C. opilio and C. bairdi feed mainly on polychaetes (50%); the young crabs and those from non-commercial populations feed on crustaceans (30-40%), worms (20-30%) and bivalves (20%). The species occupy different ecological niches. A decrease in the abundance of any crab species and a change in the age composition lead to a lower efficiency in the utilization of their food supply.

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Related References

Tarverdieva, M.I. 1981: Feeding of snow crabs chionoecetes opilio and chionoecetes bairdi in the bering sea Zoologicheskii Zhurnal 60(7): 991-997
Tarverdieva, MI. 1976: Feeding of Paralithodes camtschatica, Chionoecetes bairdi and C. opilio in the south-east of the Bering Sea Biologiya Morya (Vladivostok) (1): 41-48
Paul, AJ.; Paul, JM.; Shoemaker, PA.; Feder, HM. 1979: Prey density and feeding response in laboratory-reared stage one zoea of king crab Paralithodes camtschatica, snow crab Chionoecetes bairdi, and pink shrimp Pandalus borealis Proceedings of the Alaska Science Conference 29: 739-746
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