. Commercial fisheries review. Fisheries; Fish trade. SOURCES OF DATA On March 23, 1957, the M/V Deep Sea commenced king crab factoryship opera- tions in the Pavlof Bay area on the Alaska Peninsula. The commercial processing equipment aboard the vessel was used in this study. Although the meat extracting was done with more care than in com- mercial operations, thepartsof the crabs used were the same, , claws, legs, and shoulders. SAMPLING PROCEDURE Specimens were selected to include all the commercial sizes present. In an effort to keep the method of weighing constant, weights were taken i
. Commercial fisheries review. Fisheries; Fish trade. SOURCES OF DATA On March 23, 1957, the M/V Deep Sea commenced king crab factoryship opera- tions in the Pavlof Bay area on the Alaska Peninsula. The commercial processing equipment aboard the vessel was used in this study. Although the meat extracting was done with more care than in com- mercial operations, thepartsof the crabs used were the same, , claws, legs, and shoulders. SAMPLING PROCEDURE Specimens were selected to include all the commercial sizes present. In an effort to keep the method of weighing constant, weights were taken immediate- ly upon removal of crabs from the live tanks and subsequently upon removal from the cooling tanks after cooking. Both weighing procedures required ap- proximately 30 seconds and did not ex- ceed 45 seconds. To standardize weight variations due to water loss, crabs were kept on their backs at all times. The specimens were cooked with the com- mercially-butchered crab sections in wire baskets at about 200 F. for 25 min- utes. The cooked crabs were cooled in tanks containing running sea water. Prior to meat extraction, the carapace and gills were removed and the body broken in half and FIG. 1 - MEAN WEIGHTS OF 20 KING CRABS BY CAR- APACE LENGTH. The leg meat was extracted by a pressurized jet of water forced into the outer extremity of the propus. After the initial force of water had removed most of the ?FISHERY RESEARCH BIOLOGIST, PACIFIC SALMON INVESTIGATIONS, BUREAU OF COMMERCIAL FISHERIES U. S. FISH AND WILDLIFE SERVICE, SEATTLE, WASH. '. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. National Marine Fisheries Service; U. S. Fish and Wildlife Service; United States. Bureau of Commericial Fisheries. [Washington] : National Marine Fisheries Service; [for sale by the Supt. of
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