Cruise inventory

RV Clione CLI4B/67

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Clione (74CN)
Cruise identifierCLI4B/67
Cruise period1967-06-08 — 1967-06-15
StatusCompleted
Port of departureFleetwood, United Kingdom
PurposeResearch
Objectives1. 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 scientistDennis S Woodhead (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Clione CLI4B/67 cruise report clione4b_67.pdf — access key 'C' (0.14 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
SpecificSouth of Windscale effluent outfall, off Seascale, Solway Firth, Windscale-Holyhead, Holyhead-Dublin
Measurements 
Chemical oceanography 
RadioactivityQuantity: number of stations = 8
Description: Radiological survey: stations between Windscale and Holyhead, and Holyhead and Dublin
Contamination 
Bottom depositsQuantity: 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 
SestonQuantity: number of hauls = 9
Description: Made in the Solway Firth with the Tin Tow Net to obtain bulk plankton samples for activity analysis
Demersal fishQuantity: 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.