Cruise summary report
Cruise Info. | |
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Ship name (ship code) | FRV Explorer (74EX) |
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Cruise identifier | 7/78 |
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Cruise period | 1978-06-22 — 1978-07-11 |
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Status | Completed |
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Port of return | Aberdeen, United Kingdom |
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Purpose | Research |
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Objectives | 1) Participation in an international survey of pelagic 0-group gadoids in the North Sea
2) Studies on the timing of recruitment of gadoids to the demersal phase
3) Collection of live fish for the aquarium
4) A sample of cod were deep frozen for the Lowestoft Laboratory
5) 4 samples of surface water collected along the edge of the Norwegian Deeps were brought back for the Woods Holes Laboratory
A relief engineer and a member of scientific staff joined the ship at Lerwick on the 26/06/1978. A mid-trip call was made at Cristiansand from the 03/07/1978 till the 04/07/1978. The pelagic trawl was damaged which meant that it was not possible to make hauls on the sea bed to study the recruitment of gadoids to the demersal phase. |
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Chief scientist | John R G Hislop (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Project | Int.Young Gadoid Survey |
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Cruise report | (1.74 MB) |
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Ocean/sea areas | |
General | North Sea Norwegian Sea |
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Specific | Viking Bay, Norwegian Deeps, Danish coast, east coast of Scotland, Moray Firth, Orkneys |
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Track charts | |
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Measurements | |
Physical oceanography | |
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CTD stations | Quantity: number of stations = 31 |
Biology and fisheries | |
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Phytoplankton | Quantity: 40 |
Eggs and larvae | Quantity: 40 Description: monitoring |
Pelagic fish | Quantity: number of hauls = 3 Description: to collect live 0+ gadoids for the aquarium. Haddock, whiting, cod, and Norway pout. Sprat sandeels, herring, witches, and long rough dab |
Demersal fish | Quantity: number of hauls = 3 Description: to collect live 0+ gadoids for the aquarium. Haddock, whiting, cod, and Norway pout. Sprat sandeels, herring, witches, and long rough dab |