Cruise Info. | |
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Ship name (ship code) | FRV Explorer (74EX) |
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Cruise identifier | 11/73 |
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Cruise period | 1973-12-03 — 1973-12-23 |
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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) West coast, north coast and Moray Firth environmental and pre-recruit demersal fish survey
2) Dutch Gulf III samples were taken at all stations, Standard net samples at 5 stations, and a WP3 sample at station 39.
3) Immunodiffusion tests were conducted using serum from infected and uninfected whiting of various age groups
Bad weather interrupted work on the 05/12/1973. Trawling was resumed on the 06/12/1973. ''Explorer'' berthed at Greenock on the 13/12/1973 leaving on the 15/12/1973, and again in Campbeltown on the 15/12/1973 sailing again on the 16/12/1973. |
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Chief scientist | Kenneth MacKenzie (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Cruise report | (0.07 MB) |
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Ocean/sea areas | |
General | North Sea Inner Seas off the West Coast of Scotland |
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Specific | Minches, Firth of Clyde, W of outer Hebrides, Moray Firth |
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Measurements | |
Physical oceanography | |
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Surface measurements underway (T,S) | Quantity: number of stations = 19 Description: pump samples S only. |
Water bottle stations | Quantity: number of stations = 19 Description: pump samples T surface only. |
Chemical oceanography | |
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Phosphate | Quantity: number of stations = 19 Description: Trawling |
Nitrate | Quantity: number of stations = 19 Description: Trawling |
Alkalinity | Quantity: number of stations = 19 Description: Trawling |
Biology and fisheries | |
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Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of stations = 19 Description: Trawling |
Particulate organic matter (inc POC, PON) | Quantity: number of stations = 19 Description: Trawling |
Pelagic fish | Quantity: number of stations = 19 Description: Trawling. 2026 whiting were examined for Gilquinia squali infection. 450 haddock were examined for infection with the cestode parasite Grillotia |