Cruise Info. | |
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Ship name (ship code) | FRV Explorer (74EX) |
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Cruise identifier | 5/71 |
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Cruise period | 1971-08-20 — 1971-09-06 |
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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) Faroe-Shetland hydrographic lines
2) Fish-environmenatl survey of Faroe Bank and Faroe Plateau
3) Ornithological studies for Aberdeen University (cancelled)
4) Guff III samples were taken for dry weight determination only; no species analysis was attempted
5) Stomach samples were collected from all species obtained from trawling, from a wide size range of each species and on an area basis.
6) A record of the amount of dead shells was made and a representative sample was kept for Dr J Wilson of the National Institute of Oceanography
Objective 3 was cancelled because Dr W R P Bourne was detained due to pressure from other work. A brief visit was made to Thorshavn where packages of deep-frozen sea-birds were picked up for Dr Bourne on the 27/08/1971. Owing to further strong winds, only 3 of the 6 trawl stations on Faroe Bank were worked |
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Chief scientist | Robert Johnston (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Cruise report | (0.13 MB) |
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Ocean/sea areas | |
General | North East Atlantic Ocean (limit 40W) |
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Specific | Fladen area, Fair Isle, Munken Rock, West Bay |
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Measurements | |
Physical oceanography | |
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Surface measurements underway (T,S) | Description: thermosalinograph at 3 m intermittent |
Water bottle stations | Quantity: number of stations = 57 |
Chemical oceanography | |
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Oxygen | Quantity: 6 |
Phosphate | Quantity: 6 |
Nitrate | Quantity: 4 |
Silicate | Quantity: 4 |
Contamination | |
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Other contaminant measurements | Quantity: 6 Description: chemical pollution |
Biology and fisheries | |
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Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: 57 |
Zooplankton | Quantity: 57 |
Pelagic fish | Quantity: number of hauls = 37 |
Demersal fish | Quantity: number of hauls = 37 Description: Main species caught were haddock, cod and saithe |
Gear research | Description: instrument development |
Other biological/fisheries measurement | Description: deep scattering layers |
Geology and geophysics | |
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Other geological/geophysical measurements | Quantity: 37 Description: physical analysis of sediments |