RV Clione CLI3A/71
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Clione (74CN) |
| Cruise identifier | CLI3A/71 |
| Cruise period | 1971-03-02 — 1971-03-18 |
| Status | Completed |
| Port of departure | Lowestoft, United Kingdom |
| Port of return | Lowestoft, United Kingdom |
| Purpose | Fisheries |
| 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. |
| Chief scientist | R G Houghton (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Cruise report |  (0.29 MB) |
| Ocean/sea areas | |
| General | English Channel Irish Sea and St. George's Channel |
| Specific | 49.4-54.3N 06.4-03E |
| Measurements | |
| Physical oceanography | |
| 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 | |
| Dissolved organic matter (inc DOC) | Quantity: number of samples = 55 |
| Phytoplankton | Quantity: number of samples = 55 |
| Zooplankton | Quantity: number of samples = 55 |
