Cruise summary report
Cruise Info. | |
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Ship name (ship code) | FRV Explorer (74EX) |
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Cruise identifier | 2/78 |
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Cruise period | 1978-01-31 — 1978-02-21 |
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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) To take part in the International Young Herring and Gadoid Pre-recruit Survey in the North Sea
2) To examine freshly caught fish for parasites |
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Chief scientist | Arthur S Jermyn (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Project | Int.Young Fish Survey |
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Cruise report | (4.46 MB) |
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Ocean/sea areas | |
General | North Sea |
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Specific | Dogger Bank, Esbjerg, Danish coast, Fladen area, Hamnavoe |
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Track charts | (4.34 MB) |
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Measurements | |
Biology and fisheries | |
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Eggs and larvae | Quantity: number of hauls = 58 Description: sampling of pre-metmorphosis herring larvae using the Isaacs-Kidd midwater trawl |
Pelagic fish | Description: 72 juvenile mackerel were dissected and examined for potential tag parasites. Microscopic examination of kidneys of 936 haddock and 374 plaice |
Demersal fish | Quantity: number of hauls = 41 Description: population structures,monitoring,distribution studies using a bottom herring trawl with a 20 mm cod end |