FRV Explorer Additional Cruise 1981
Cruise summary report
Cruise Info. | |
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Ship name (ship code) | FRV Explorer (74EX) |
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Cruise identifier | Additional Cruise 1981 |
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Cruise period | 1981-04-08 — 1981-04-23 |
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Status | Completed |
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Port of departure | Aberdeen, United Kingdom |
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Port of return | Aberdeen, United Kingdom |
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Purpose | Research |
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Objectives | 1) A routine demersal fish survey in the Northern North Sea.
2) A contribution was made to the ICES stomach sampling programme
3) Liver samples from cod, haddock and whiting were obtained and stored in liquid nitrogen
4) Trials were made with the system recently developed to weigh individual fish at sea
Engine trouble caused the ship to dock at Kirkwell on the 15/04/1981 sailing again after a change in personnel on the 17/04/1981. |
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Chief scientist | Andrew W Newton (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Cruise report | (1.70 MB) |
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Ocean/sea areas | |
General | North Sea Norwegian Sea North East Atlantic Ocean (limit 40W) |
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Specific | North Sea, E of Orkney, off the Shetlands, Moray Firth, Aberdeen Bank, Fladen Ground, Bressay Ground, Buchan Deeps, Burgen and Ling Banks |
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Track charts | (0.05 MB) |
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Measurements | |
Biology and fisheries | |
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Pelagic fish | Quantity: number of hauls = 44 Description: 1 hour duration. GOV trawl hauls fitted with rubber bobbins, monitoring, pathology. Haddock, whiting, herring, flatfish, long rough dabs, and cod caught. 805 herring were otolithed during the cruise. 6312 stomachs of cod, whiting, haddock and saithe were examined, over 4000 stomachs were preserved for further analysis in the Laboratory. The total weights and gutted weights of 728 haddock were determined. |
Demersal fish | Quantity: number of hauls = 44 Description: 1 hour duration. GOV trawl hauls fitted with rubber bobbins, monitoring, pathology. Haddock, whiting, herring, flatfish, long rough dabs, and cod caught. 805 herring were otolithed during the cruise. 6312 stomachs of cod, whiting, haddock and saithe were examined, over 4000 stomachs were preserved for further analysis in the Laboratory. The total weights and gutted weights of 728 haddock were determined. |