Cruise summary report
Cruise Info. | |
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Ship name (ship code) | FRV Explorer (74EX) |
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Cruise identifier | 9A/68 |
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Cruise period | 1968-10-30 — 1968-11-05 |
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Status | Completed |
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Port of return | Leith, United Kingdom |
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Purpose | Research |
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Objectives | Fish capture experiments and tagging experiments using detachable codends
Fishing had to be discontinued on the 31/10/1968 due to the onset of bad weather and a leak had developed in the boiler tubes making further work impossible. |
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Chief scientist | Richard B Burns (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory), Rodney Jones (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Cruise report | (0.23 MB) |
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Ocean/sea areas | |
General | North Atlantic Ocean |
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Measurements | |
Physical oceanography | |
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Water bottle stations | Quantity: number of stations = 24 Description: T surface only (data for both parts of the cruise) |
Chemical oceanography | |
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Oxygen | |
Phosphate | |
Nitrate | |
Silicate | |
Biology and fisheries | |
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Phytoplankton | Quantity: number of stations = 24 Description: (data for both parts of the cruise) |
Demersal fish | Description: 1 hour trawls made with the 48 ft Granton trawl of courlene, with rubber bobbins, and a small mesh cover. Haddock, whiting, cod, hake, ling, saithe and T. esmarkii were the principal species recorded. Dogfish were present in small numbers in all hauls. (data for both parts of the cruise) |
Taggings | Quantity: number of specimens = 9 Description: Taggings of cod from one catch inside the upper Minch. (data for both parts of the cruise) |
Exploratory fishing | Description: 1 hour trawls made with the 48 ft Granton trawl of courlene, with rubber bobbins, and a small mesh cover. Haddock, whiting, cod, hake, ling, saithe and T. esmarkii were the principal species recorded. Dogfish were present in small numbers in all hauls. (data for both parts of the cruise) |