Cruise summary report
Cruise Info. | |
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Ship name (ship code) | FRV Explorer (74EX) |
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Cruise identifier | 2B/77 |
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Cruise period | 1977-03-15 — 1977-04-04 |
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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) To asses the size and distribution of the spawning stock of blue whiting to the west of Scotland by means of an acoustic survey
2) To carry out pelagic trawling to identify echo traces and to provide samples for biological investigation
3) To measure the target strength of blue whiting in-situ
4) To provide information on blue whiting concentrations to fishing vessels
Survey began at 55 degrees 45 minutes North, 9 degrees 30 minutes West. The start of the survey was delayed until 17th March due to extreme weather conditions. A different survey pattern was adopted due to continuing poor weather. The survey was broken on 25/03/1977 in Stornoway to exchange personnel but continued on the 26/03/1977. |
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Chief scientist | John Richards (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Cruise report | (0.08 MB) |
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Ocean/sea areas | |
General | Irish Sea and St. George's Channel North East Atlantic Ocean (limit 40W) |
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Specific | Broadbay, Stornoway, Rosemary Bank, Wyville Thomson ridge, |
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Measurements | |
Biology and fisheries | |
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Pelagic fish | Quantity: number of hauls = 3 Description: for blue whiting |
Acoustic reflection on marine organisms. | |