Cruise summary report
Cruise Info. | |
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Ship name (ship code) | RV Clione (74CN) |
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Cruise identifier | CLI3A/71 |
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Cruise period | 1971-03-02 — 1971-03-18 |
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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 | Fisheries |
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Objectives | 1. To determine the extent and size of the cod spawning grounds in the Bristol Channel and N W Irish Sea.
2. To tag cod on their spawning grounds.
3. To obtain blood samples, length-age measurements and fecundity estimates from the Bristol Channel and N W Irish Sea spawning stocks.
4. To determine the 'feeding overlap' between mature individuals of several commercially important species caught in single trawl hauls.
5. To collect length-age data on flatfish.
6. To release sea-bed drifters off Start Point in order to determine the residual current flow associated with the local plaice spawning.
7. To collect samples of cod pineal bodies for Mr V Bye.
8. To measure bottom temperatures and salinities in accordance with ICES recommendations. |
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Chief scientist | R G Houghton (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
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Cruise report | (0.29 MB) |
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Ocean/sea areas | |
General | English Channel Irish Sea and St. George's Channel |
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Specific | 49.4-54.3N 06.4-03E |
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Measurements | |
Physical oceanography | |
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Water bottle stations | Quantity: number of stations = 15 Description: surface 13 bottom |
Surface drifters/drifting buoys | Quantity: number of deployments = 482 Description: bottom |
Biology and fisheries | |
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Dissolved organic matter (inc DOC) | Quantity: number of samples = 55 |
Phytoplankton | Quantity: number of samples = 55 |
Zooplankton | Quantity: number of samples = 55 |