Cruise summary report
Cruise Info. | |
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Ship name (ship code) | RV Clione (74CN) |
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Cruise identifier | CLI10/83 |
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Cruise period | 1983-08-18 — 1983-08-31 |
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Status | Completed |
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Port of departure | Lowestoft, United Kingdom |
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Port of return | Lowestoft, United Kingdom |
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Purpose | Research |
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Objectives | 1. To make acoustic surveys of spawning herring concentrations off the Yorkshire coast and elsewhere in the west central North Sea using a 38 kHz transducer mounted in a light-weight towed body, or loan from DAFS, in conjunction with both the QM and QD echo integrators.
2. To obtain samples of herring for age analysis.
3. To obtain comparative data using both 38 kHz and 29 kHz transducers. |
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Chief scientist | R J Wood (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
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Cruise report | (0.16 MB) |
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Ocean/sea areas | |
General | North Sea Irish Sea and St. George's Channel |
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Specific | W. Central North Sea |
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Track charts | |
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Measurements | |
Biology and fisheries | |
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Phytoplankton | Quantity: number of hauls = 7 |
Zooplankton | Quantity: number of hauls = 7 |
Pelagic fish | Quantity: number of hauls = 7 |
Acoustic reflection on marine organisms. | |