Cruise summary report
Cruise Info. | |
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Ship name (ship code) | FRV Mara (74MR) |
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Cruise identifier | 11B/78 |
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Cruise period | 1978-10-12 — 1978-10-31 |
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Status | Completed |
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Port of departure | Stornoway, United Kingdom |
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Port of return | Mallaig, United Kingdom |
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Purpose | Trials |
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Objectives | To examine the performance of a 100 hp semi-pelagic trawl with 2 sizes of belly panel and to determine its optimum rig to obtain firm ground contact along its length with a rope-rounded footrope
To observe fish reaction to the rising belly panels of different mesh sizes to the netting at the codend mouth
Bad weather hampered diving operations for most of the cruise in Broad Bay. A sick crew member had to be landed on the 13/10/1978. A cruise break took place from the 19/10/1978 until the 24/10/1978 |
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Chief scientist | John Main (Department of Agriculture and Fisheries for Scotland Aberdeen Marine Laboratory) |
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Cruise report | (0.09 MB) |
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Ocean/sea areas | |
General | Inner Seas off the West Coast of Scotland |
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Specific | Broad Bay |
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Measurements | |
Biology and fisheries | |
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Gear research | Quantity: number of hauls = 1 Description: To observe fish reactions to rising belly panels of different mesh sizes.
It was noted that many flat fish became trapped in the net due to the steep angle.
No. of hauls not specified. |
Gear research | Quantity: number of hauls = 1 Description: To test the 110hp semi-pelagic trawl with two sizes of belly panel.
The net was seen to pass over boulders of 1 foot high without any damage at 32lbs. Yet with an adjustment of weight it was found to be hard to lif the net off the seabed.
No of trials not specified. |