RV Clione CLI10/81

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Clione (74CN)
Cruise identifierCLI10/81
Cruise period1981-08-12 — 1981-08-26
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To aid CORELLA in the survey of spawning herring concentrations off the Yorkshire coast and in the vicinity of the Farne Islands.
2. To make in-situ target strength measurements and to identify the traces by fishing.
3. By use of the sector scanner, observe the behaviour of herring to the passage of CORELLA and the towed transducer.
4. To make comparative side-by-side measurements on fish concentrations using acoustic frequencies of 30 and 38kHz in sequence.
5. To assess the performance of the Simrad QD echo-integrator and the Furumo colour display.
Chief scientistRonald B Mitson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Clione CLI10/81 cruise report clione10_81.pdf (0.14 MB) 
Ocean/sea areas 
GeneralNorth Sea
Irish Sea and St. George's Channel
SpecificNorth Sea (Central)
Track chartsRV Clione CLI10/81 cruise track — trk2662.html
Physical oceanography 
CTD stationsQuantity: number of stations = 2
Biology and fisheries 
Demersal fishQuantity: number of hauls = 6
Acoustic reflection on marine organisms.Quantity: number of measurements = 26
Description: echo survey
Geology and geophysics 
Long/short range side scan sonarQuantity: number of stations = 5