The Eastern Bering Sea Shelf The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder easternberingsea00hood Year: 1981 1044 Fisheries biology 100 90 80 5 70 X 50 o < O 30 40 20 - 10 RED KING CRAB BLUE KING CRAB I r I I I I T f V . 54 56 58 60 62 64 66 68 70 72 74 76 78 YEAR Figure 61-6. All-nation landings of red and blue king crabs from the eastern Bering Sea south of 58°. fishery is nearly double that of 1977 (perhaps 40,000 net tons). King crab pots are constructed with steel frames (often concrete reinforcing bar) and nylon web. Pots u
The Eastern Bering Sea Shelf The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder easternberingsea00hood Year: 1981 1044 Fisheries biology 100 90 80 5 70 X 50 o < O 30 40 20 - 10 RED KING CRAB BLUE KING CRAB I r I I I I T f V . 54 56 58 60 62 64 66 68 70 72 74 76 78 YEAR Figure 61-6. All-nation landings of red and blue king crabs from the eastern Bering Sea south of 58°. fishery is nearly double that of 1977 (perhaps 40,000 net tons). King crab pots are constructed with steel frames (often concrete reinforcing bar) and nylon web. Pots usually exceed 227 kg in weight. The newest crab vessels can carry 160-200 pots on deck and many vessels fish over 300 pots. During the 1977 red king crab season the ADF&G conducted a detailed gear survey that included about half the fleet (74 vessels). The average number of pots per vessel was 239. The gear consisted of square pots, approxi- mately m tall, with the following characteristics: Size Frequency Average weight (Percent) (kg) 3 255 22 286 73 303 1 328 1 409 Norton Sound fishery Two separate fisheries for red king crab occur in Norton Sound. A winter fishery is conducted by residents of the Nome area using pots, ring nets, and hand lines set through holes or leads in the ice. Winter fishing is primarily for subsistence (personal use). The subsistence fishery is small and has prob- ably never exceeded 45 mt. Some mt of red king crab taken in winter fishery were sent to Kodiak via air freight, in 1978. These crab were processed commercially. A summer commercial fishery has been conducted in Norton Sound each year since 1977. Catches were 242 mt in 1977, 950 mt in 1978, and 1,300 mt in 1979. Norton Sound red king crab are small; commercially taken crab typically average kg as compared to kg in the southeastern Bering Sea fishery. In spite of effort that increased from seven vessels in 1977 to nine vessels in 1978 and 34
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