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REPRODUCTIVE BIOLOGY OF THE FEMALE BLUE KING CRAB PARALITHODES PLATYPUS NEAR THE PRIBILOF ISLANDS, ALASKA

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image of Journal of Crustacean Biology

ABSTRACT Female blue king crabs, Paralithodes platypus, from the Pribilof Islands, were sampled during each of four seasons to determine whether they spawn each year, as do red king crabs, P. camtschatica, or every other year, as reported for Asian blue king crabs. Based on seasonal changes in two indices of ovarian development (standardized ovary weight and mean oocyte diameter) we found the period between successive spawnings to be two years and the period of embryonic development to be 14-15 months. The fecundity of blue king crabs increases with size according to: E = 241,629-2,632,606 e–0.0280L, where E is fecundity and L is carapace length in mm. Mean length and width of new external eggs are 1.2 mm and 1.0 mm.

Affiliations: 1: (DAS) Northwest and Alaska Fisheries Center, National Marine Fisheries Service, 7600 Sand Point Way, N.E., BIN C15700, Building 4, Seattle, Washington 98115;; 2: (RAM) Kodiak Laboratory, Northwest and Alaska Fisheries Center, National Marine Fisheries Service, P.O. Box 1638, Kodiak, Alaska 99615.

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/content/journals/10.1163/1937240x85x00533
1985-01-01
2016-12-07

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