Cruise summary report
Cruise Info. | |
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Ship name (ship code) | FRV Goldseeker (74GO) |
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Cruise identifier | 10/78 |
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Cruise period | 1978-11-01 — 1978-11-17 |
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Status | Completed |
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Port of return | Leith, United Kingdom |
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Purpose | Research |
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Objectives | 1. To compare quantity, size and sex composition of Nephrops catches and fish by-catch using different mesh-size codends on a standard Nephrops trawl.
2. To assess predation on Nephrops by examination of fish stomachs.
3. To look for incidence of the gut parasite Stichocotyle nephropsis in Nephrops. |
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Chief scientist | James A M Kinnear (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Cruise report | (0.12 MB) |
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Ocean/sea areas | |
General | North Sea |
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Specific | Firth of Forth |
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Measurements | |
Biology and fisheries | |
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Demersal fish | Quantity: number of specimens = 230 Description: Cod stomachs were examined for Nephrops remains. The size composition of Nephrops contained in the stomachs was recorded |
Crustaceans | Quantity: number of specimens = 27964 Description: Size and sex compositions and mean carapace lengths of Nephrops caught were recorded. 13771 caught with the 60mm cod-end (8362 males, 5409 females), and 14193 caught with the 80mm cod-end (8695 males, 5498 females) |
Crustaceans | Quantity: activity duration in hours = 1.5 Description: Hauls for Nephrops. Each cod-end was fished on alternate days( 60mm and 80 mm cod-end). Large catches of Nephrops were sub-sampled by weight, but whenever possible, the total catch was measured. |