Cruise summary report
Cruise Info. | |
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Ship name | Coble Faithful |
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Cruise identifier | 4/72 |
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Cruise period | 1972-05-18 — 1972-06-02 |
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Status | Completed |
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Port of departure | Scarborough, United Kingdom |
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Port of return | Scarborough, United Kingdom |
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Purpose | Research |
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Objectives | Aims:
1. To collect surface and vertical oblique plankton samples.
2. To make comparative hauls with a pair of 20" high speed plankton samplers, (a) both towed by TELLINA, simultaneously; (b) towed by TELLINA and FAITHFUL simultaneously.
3. To sample the plaice larvae with both 20" TTN and 4 m beam trawl over two or more tidal cycles.
4. To trawl for juvenile plaice tagged in November 1972, and tag juvenile plaice.
5. To catch larval plaice over 24 hours at regular intervals for feeding studies.
6. To release sea bed drifters in three positions off Filey and one off Scarborough.
7. To collect plaice eggs and return live to Lowestoft for Mr Avery.
8. To collect a water sample for Dr Reynolds.
Results.
comparisons between 2 unceased 20" TTN. trawling and tagging juvenile plaice. Tellina towed a 20" TTN and Faithful towed a 4m beam trawl, both once an hour over a tidal cycle. both vessels towed 20" TTNs to compare catch rates, 12 tows made.
Samples taken by both 20" TTN and 4m beam trawl hourly over tidal cycle
211 juvenile plaice tagged and released
4 batches of 25 seabed drifters released on spring and neap tides
1 water sample taken |
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Chief scientist | Stephen J Lockwood (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
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Cruise report | (0.13 MB) |
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Ocean/sea areas | |
General | North Sea |
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Measurements | |
Physical oceanography | |
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Water bottle stations | Quantity: number of samples = 1 Description: seawater sample |
Surface drifters/drifting buoys | Quantity: number of deployments = 100 Description: seabed drifters 25 at each of 4 sites |
Biology and fisheries | |
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Pelagic fish | Quantity: number of surveys = 1 Description: hourly trawls over a tidal cycle, 4m beam trawl |
Demersal fish | Quantity: number of surveys = 1 Description: hourly trawls over a tidal cycle, 4m beam trawl |
Taggings | Quantity: number of specimens = 211 Description: juvenile plaice |
Exploratory fishing | Quantity: number of stations = 6 Description: 20" TTN, comparative fishing |