RV Clione CLI4B/67
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Clione (74CN) |
| Cruise identifier | CLI4B/67 |
| Cruise period | 1967-06-08 — 1967-06-15 |
| Status | Completed |
| Port of departure | Fleetwood, United Kingdom |
| Purpose | Research |
| Objectives | 1. To mark approximately 2,500 plaice.
2. To obtain benthos samples. 3. To make a pilot scale radiological survey of the Irish Sea prior to a major survey later in the year. 4. Trials of gamma-spectrometry equipment to monitor in situ wind scale area sea bed and sea water. Samples of other fish species and benthos for activity analysis were obtained from 3 hauls |
| Chief scientist | Dennis S Woodhead (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Cruise report |  (0.14 MB) |
| Ocean/sea areas | |
| General | Irish Sea and St. George's Channel |
| Specific | South of Windscale effluent outfall, off Seascale, Solway Firth, Windscale-Holyhead, Holyhead-Dublin |
| Measurements | |
| Chemical oceanography | |
| Radioactivity | Quantity: number of stations = 8 Description: Radiological survey: stations between Windscale and Holyhead, and Holyhead and Dublin |
| Contamination | |
| Bottom deposits | Quantity: number of stations = 6 Description: 2 stations in between hauls made with the gamma-spectrometry probe. At each station a seabed sample was taken for reference purposes. While at anchor off Seascale, the gamma-spectrometry probe was used to monitor possible time-variations in the sea-water activity at 5 fathoms. A series of gamma-spectrometry probe stations were made on a line running northwards from the pipeline outfall to the South Workington buoy. 3 additional stations close to the pipeline from the CEGB nuclear power station at Wylfa, 1 near to the pipeline outfall from AEE Winfrith |
| Biology and fisheries | |
| Seston | Quantity: number of hauls = 9 Description: Made in the Solway Firth with the Tin Tow Net to obtain bulk plankton samples for activity analysis |
| Demersal fish | Quantity: number of hauls = 7 Description: 435 fish yielded for marking from 1 haul in 2 miles south of the Windscale effluent outfall, 3 hauls yielding 1280 plaice. |
