Prince William Sound Field Guide to King Crab Identification

Prince William Sound Field Guide to King Crab Identification

ALASKA DEPARTMENT OF FISH AND GAME DIVISION OF COMMERCIAL FISHERIES FIELD GUIDE TO KING CRAB IDENTIFICATION Three species of king crab occur in the Prince William Sound area but only legal size male golden king crab may be harvested in the Prince William Sound subsistence golden king crab and Tanner crab fishery. ONLY GOLDEN KING CRAB MAY BE HARVESTED GOLDEN KING CRAB Lithodes aequispinus mid-dorsal plate 5 to 9 spines on mid-dorsal plate ANNUAL HOUSEHOLD LIMIT = 3 ONLY LEGAL SIZE MALE CRAB MAY BE HARVESTED (SEE REVERSE) mid-dorsal plate BLUE KING CRAB Paralithodes platypus mid-dorsal plate 4 prominent spines on mid-dorsal plate NO HARVEST ALLOWED mid-dorsal plate RED KING CRAB Paralithodes camtschaticus mid-dorsal plate 6 prominent spines on mid-dorsal plate NO HARVEST ALLOWED mid-dorsal plate HOW TO DETERMINE SEX Only legal size male golden king crab may be harvested. MALE KING CRAB FEMALE KING CRAB Triangular abdominal flap Circular abdominal flap -continued- ALASKA DEPARTMENT OF FISH AND GAME DIVISION OF COMMERCIAL FISHERIES GOLDEN KING CRAB IDENTIFICATION Side view of rostrum Dorsal view of rostrum Paired tip HOW TO DETERMINE SIZE Legal male golden king crab carapace width is 7 inches or larger and is measured as the greatest straight line distance across the carapace including spines. Rostrum – look for paired tip Legal minimum size is 7 inches 5 to 9 spines on mid-dorsal plate More king crab information can be found in Biological Field Techniques for Lithodid Crabs by William E. Donaldson and Susan C. Byersdorfer, Alaska Sea Grant College Program, University of Alaska 2005. Photo and illustration credits: Susan Byersdorfer and William Donaldson, ADF&G Kodiak. © 2008 Alaska Department of Fish and Game ADF&G administers all programs and activities in compliance with state and federal civil rights and equal opportunity laws. Obtain the full ADF&G and Americans with Disabilities Act and Office of Equal Opportunity statement online at www.adfg.state.ak.us or from the ADF&G Public Communications Section at 907-465-6166. .

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