Cruise summary report
Cruise Info. | |
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Ship name | Aries |
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Cruise period | 1985-08-11 — 1985-08-31 |
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Status | Completed |
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Port of departure | Gairloch, United Kingdom |
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Port of return | Gairloch, United Kingdom |
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Purpose | Research |
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Objectives | 1. To catch escaping fish from codends using diving techniques and hold them in underwater cages to assess the survival rate.
2. To follow fish located by echosounder and observe their reactions at the approach of the trawl gear.
3. To compare the sandclouds between two trawl boards one of which was fitted with a spoiler.
4. To observe and film an experimental gill net fitted with very prominent netting at the headline. |
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Chief scientist | John Main (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 | Inner Seas off the West Coast of Scotland |
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Specific | Longa Island and Melvaig
Staffen Bay, Skye |
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Measurements | |
Biology and fisheries | |
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Demersal fish | Quantity: number of deployments = 2 Description: Cages were deployed at the end of the Melvaig tow. The fish were examined daily, but due to a storm a large number of fish lost. |
Demersal fish | Quantity: number of surveys = 1 Description: An echosounder survey was carried out during the cruise, but provided no fish marks. Dives where then initiated and sandeels and haddock were discovered. |
Gear research | Quantity: number of experiments = 1 Description: An experimental grill net was observed whilst being trawled. |
Gear research | Quantity: number of experiments = 2 Description: Two trawl boards were trialed to compare the sandclouds produced. |
Geology and geophysics | |
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Single-beam echosounding | Quantity: number of surveys = 1 Description: An echosounder survey was carried out during the cruise, but provided no fish marks. Dives where then initiated and sandeels and haddock were discovered. |