Cruise Info. | |
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Ship name (ship code) | FRV Explorer (74EX) |
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Cruise identifier | 7/66 |
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Cruise period | 1966-08-24 — 1966-09-07 |
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Status | Completed |
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Port of departure | Aberdeen, United Kingdom |
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Port of return | Leith, United Kingdom |
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Purpose | Research |
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Objectives | Trawling, hydrographic and plankton studies in the North Sea.
''Explorer'' landed a sick crew member on the 02/09/1966 at Aberdeen, leaving on the 03/09/1966. Bad weather severley curtailed the trawling and hydrographic work on the second part of the cruise. |
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Chief scientist | David J Symonds (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Project | Held |
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Cruise report | (0.09 MB) |
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Ocean/sea areas | |
General | North Sea |
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Specific | S and E of Dogger Bank, German Bight |
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Measurements | |
Physical oceanography | |
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Surface measurements underway (T,S) | Quantity: number of stations = 30 Description: Taken from the surface and bottom |
Water bottle stations | Quantity: number of stations = 30 Description: Taken from the surface and bottom |
Subsurface temperature and salinity measurements | Quantity: number of stations = 30 Description: Taken from the surface and bottom |
Biology and fisheries | |
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Sediment traps | Quantity: number of stations = 4 Description: Sedimentation samples taken from 10 m and standard hauls |
Phytoplankton | Quantity: number of stations = 21 Description: 15 oblique hauls were made with the Gulf III net, 6 stations with the 1 m (26 mesh) net for plankton |
Zooplankton | Quantity: number of stations = 21 Description: 15 oblique hauls were made with the Gulf III net, 6 stations with the 1 m (26 mesh) net for plankton |
Pelagic fish | Description: One hour hauls. Herring, Sprats, Whiting, Cod, Haddock, Mackerel, and Flatfish sampled. Hauls were made with the French trawl with a small meshed extension piece and codend. |
Demersal fish | Description: One hour hauls. Herring, Sprats, Whiting, Cod, Haddock, Mackerel, and Flatfish sampled. Hauls were made with the French trawl with a small meshed extension piece and codend. |
Taggings | Quantity: number of specimens = 68 Description: Taggings of cod. 96 were examied for the occurance of nematodes in the flesh. 2 samples of gall bladders were preserved |