Cruise summary report
Cruise Info. | |
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Ship name | Heathery Brae |
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Cruise period | 1990-07-29 — 1990-08-25 |
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Status | Completed |
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Port of departure | Gairloch, United Kingdom |
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Purpose | Fisheries |
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Objectives | Part 1:
1. To investigate survival rates (in underwater cages) of cod, haddock and whiting escaping from cod ends of 90mm x 120 round, 90mm x 100 meshes round and 90mm with an 80mm square mesh top panel.
2. To obtain selectivity data for each cod-end.
Part 2:
3. To lift all the underwater cages and clear the site and distribute live fish for other projects. |
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Chief scientist | John Main (Scottish Office Agriculture and Fisheries Department Aberdeen Marine Laboratory) |
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Cruise report | (0.10 MB) |
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Ocean/sea areas | |
General | Inner Seas off the West Coast of Scotland |
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Specific | Gairloch, Scotland |
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Measurements | |
Biology and fisheries | |
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Demersal fish | Quantity: activity duration in days = 7 Description: During the 1st week haddock, whiting and codling were caught on handlines and kept in cages as controls for the experiment. |
Demersal fish | Quantity: number of hauls = 1 Description: Extra hauls had to be made to boost the number of codling needed for the cage experiments.
No. of hauls not specified. |
Demersal fish | Quantity: activity duration in days = 11 Description: Within this period small haddock, whiting and codling were taken. Fish escaping the codend mesh were retained for survival experiments. |