. Commercial fisheries review. Fisheries; Fish trade. COMMERCIAL FISHERIES REVIEW Vol. 16, No. 12 From April 18 to August 3, approximately 1,100 tows were made with this type of trawl, each tow averaging about 1 hour 40 minutes in duration and each vessel averaging tows per fishable day. All trawl and seine catch- es were dropped on the deck where they were sorted. The undersize and female crabs, together with the scraps, were thrown overboard and the males ^ NetSpecilicauons | Pari of NO Mauris Thread Mesh Size Stretched â¢"*" Length A. Exrension Wing Cocior, "3
. Commercial fisheries review. Fisheries; Fish trade. COMMERCIAL FISHERIES REVIEW Vol. 16, No. 12 From April 18 to August 3, approximately 1,100 tows were made with this type of trawl, each tow averaging about 1 hour 40 minutes in duration and each vessel averaging tows per fishable day. All trawl and seine catch- es were dropped on the deck where they were sorted. The undersize and female crabs, together with the scraps, were thrown overboard and the males ^ NetSpecilicauons | Pari of NO Mauris Thread Mesh Size Stretched â¢"*" Length A. Exrension Wing Cocior, "35- Inches Meshes -55â B. Wing Cotton 36 6 76 60 C. Belly-Side Cotton 36 5 100-55 â W D. BeUy-Top E. BeUy-Botton G. Paich-Top Cotton 36 5 20 25 H. Patch-Botiom Cotton 36 s 15 , Fig, 5 - Details of a Danish seine used for fishing king crabs. TANGLE NETS: The tan- gle nets (fig. 6) employed by this crab expedition were cot- ton netting, 18-inch stretched mesh, 7 meshes deep, hung between a l-inch becket tv/ine float line, and a 6-thread ^- inch manila lead line. The floats used were glass balls 3 to inches in diameter and the weights were cement balls weighing about two pounds each. Ten glass balls and seven weights were tied to each "tan" (shackle) of net. These nets were made up in "tans," 40 meters (131 feet) in length. Approximately 200 of these "tans" were tied end-to-end for each set. Each set was anchored at both ends by kedge anchors and marked with flags held in place by two glass buoys 10 or 12 inches in diameier. At intervals along the set, usually 1, 600 meters (5, 248 feet), glass buoys and flags were attached. Each set was distinguished from another by the color of the flag and by small wooden tags tied to the poles. The wooden tags indicated the date of the set and the boat from which the particular set was made. Sets were made parallel to each other at distances of 100 to 300 meters (328-984 feet). An average of 941 "
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