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Fishing Mortality and Movements of Adult Male King Crabs, Paralithodes camtschatica (Tilesius), Released Seaward from Kodiak Island, Alaska
Author(s) -
Powell Guy C.
Publication year - 1964
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1964)93[295:fmamoa]2.0.co;2
Subject(s) - fishery , fishing , shore , spring (device) , oceanography , decapoda , crustacean , geography , biology , geology , mechanical engineering , engineering
In October 1960, 800 large male king crabs were tagged and released in two groups 12 miles off the coast of Kodiak Island in ocean waters 100 fathoms deep. Adult male crabs were abundant in this area as well as in adjacent areas. No evidence of separate stocks was obtained. Two hundred sixty‐three of these tagged crabs were recaptured by American fishermen during the 218 days of fishing which occurred after tagging and prior to the molt season. Harvest of tagged animals was 33 percent excluding tag loss. Adult male king crabs were available for commercial harvest in state waters during winter and spring and available in international waters during summer and fall. Most of the tagged crabs were recaptured from state waters. All of those captured after January came from the bays, indicating that shoreward movements occur before this time. Travel towards shore and away from shore is more predominant than travel along the coast.