Cruise summary report
Cruise Info. | |
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Ship name (ship code) | Ina-K (74IK) |
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Cruise identifier | 1/91 |
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Cruise period | 1991-11-11 — 1991-11-20 |
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Status | Completed |
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Port of departure | Leigh-on-Sea, United Kingdom |
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Port of return | Leigh-on-Sea, United Kingdom |
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Purpose | Research |
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Objectives | 1) To assess the distribution and abundance of herring in the Thames Esturary using a Larsen spat trawl
2) To obtain an independent estimate of the age structure of the Thames spring spawning herring stock |
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Chief scientist | T J Hulme (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
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Cruise report | (2.71 MB) |
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Ocean/sea areas | |
General | North Sea |
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Specific | Thames Estuary, Leight-on-Sea, Middle Deep |
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Track charts | (0.97 MB) |
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Measurements | |
Biology and fisheries | |
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Pelagic fish | Quantity: number of hauls = 32 Description: made with the 36' x 36' Larsen sprat trawl. Herring and sprats caught. 467 fish were biologically examined and otolithed for stock analysis, a further 200 fish examined for maturity/length purposes |