Cruise summary report
Cruise Info. | |
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Ship name (ship code) | FRV Explorer (74EX) |
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Cruise identifier | 2-3C/68 |
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Cruise period | 1968-04-12 — 1968-04-22 |
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Status | Completed |
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Port of departure | Stornoway, United Kingdom |
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Port of return | Aberdeen, United Kingdom |
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Purpose | Research |
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Objectives | 1) Gulf III and surface hydrography stations were repeated which had been sampled while on passage to Stornoway
2) Further studies of diurnal variation in catching areas were done
3) A trawling, plankton, and hydrographic survey was carried out from 14/04/1968 till the 20/04/1968 |
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Chief scientist | Jake H Fraser (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory), James A Adams (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Cruise report | (0.38 MB) |
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Ocean/sea areas | |
General | North Atlantic Ocean |
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Specific | Rockall, west of the Bank |
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Measurements | |
Physical oceanography | |
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Surface measurements underway (T,S) | Description: T only |
Bathythermograph | Quantity: number of profiles = 49 Description: mechanical |
Water bottle stations | Quantity: number of stations = 5 Description: 44 T surface |
Chemical oceanography | |
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Oxygen | |
Phosphate | Quantity: 2 |
Nitrate | Quantity: 1 |
Biology and fisheries | |
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Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: 4 Description: for chlorophyll a |
Phytoplankton | Quantity: 49 |
Zooplankton | Description: The Gulf III was used |
Pelagic fish | Quantity: number of hauls = 7 Description: Apart from two occasions during the whole cruise when fishing was conducted in one locality in both daylight and darkness, trawling survey was carried out in daylight. 246 per haul of large ling, 2-245 of haddock, some saithe present |