Cruise Info. | |
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Ship name (ship code) | FRV Explorer (74EX) |
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Cruise identifier | 5B/67 |
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Cruise period | 1967-06-12 — 1967-07-04 |
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Status | Completed |
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Port of departure | Greenock, United Kingdom |
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Port of return | Aberdeen, United Kingdom |
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Purpose | Fisheries |
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Objectives | 1) Hydrographic sampling for temperatures, salinities and phosphates were taken at all standard depths from 0-200 m.
2) Underwater camera was fitted to the headline of the trawl whenever conditions were suitable. It was also used to identify the organisms producing a midwater trace off the southern edge of Rockall.
3) The Marconi Seagraph for most of the echosounding survey, some records were obtained with the expanded scale recorder
4) The ship returned to Rocksll to complete the programme of plankton sampling and to carry out a fishing survey
''Explorer'' put into Stornoway on the 26/06/1967 to land a sick member of crew and replenish freshwater supplies leaving on the 27/06/1967. Catches included blue whiting, haddock, coalfish, ling, rays, 1 basking shark, herring and mackerel. |
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Chief scientist | Ian G Baxter (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Cruise report | (0.25 MB) |
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Ocean/sea areas | |
General | North Sea |
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Specific | NW of Ireland, NW of St. Kilda |
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Measurements | |
Physical oceanography | |
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Surface measurements underway (T,S) | Description: lines of hydrographic stations |
Subsurface temperature and salinity measurements | Description: lines of hydrographic stations |
Chemical oceanography | |
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Phosphate | Description: lines of hydrographic stations |
Biology and fisheries | |
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Eggs and larvae | Description: oblique haul at each station and some Gulf III, blue whiting larvae |
Zoobenthos | Quantity: number of stations = 2 Description: trawling areas: coral |
Pelagic fish | Quantity: number of stations = 2 Description: trawling areas: blue whiting, silver smolt, haddock,herring, mackerel, ling, 1 basking shark and coalfish |
Demersal fish | Quantity: number of stations = 2 Description: trawling areas: rabbitfish, rays, cod and Gadiculus |
Geology and geophysics | |
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Bottom photography | Quantity: number of images = 20 Description: film records using underwater camera fitted to trawl headline |
Single-beam echosounding | Description: survey |