Cruise summary report
Cruise Info. | |
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Ship name (ship code) | FRV Mara (74MR) |
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Cruise identifier | 2/63 |
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Cruise period | 1963-01-28 — 1963-02-22 |
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Status | Completed |
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Port of departure | Fraserburgh, United Kingdom |
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Port of return | Fraserburgh, United Kingdom |
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Purpose | Research |
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Objectives | 1) Tagging and release of crabs
2) The relative efficacies of 4 creel baits were tested
3) A comparison was made between Scottish creels with 5 in shuttered eyes and commercial collapsible potts. Both types of gear were baitted with skate offal
''Mara'' was based in Fraserburgh for the entire cruise |
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Chief scientist | James Mason (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Cruise report | (0.04 MB) |
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Ocean/sea areas | |
General | North Sea |
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Measurements | |
Biology and fisheries | |
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Crustaceans | Quantity: number of specimens = 268 Description: Crabs caught. These and those that were bought were tagged and released at 9 stations on the crab grounds off Fraserburgh |
Crustaceans | Quantity: number of deployments = 148 Description: Creels baited with either skate offal, whiting, fish meal or crab meal to test effectiveness of baits. |
Taggings | Quantity: number of specimens = 670 Description: Crabs of commerical size caught and bought had tags attached to their claws and were released at 9 stations on the crab grounds off Fraserburgh. 36 undersized crabs were tagged by the Gundersen method |