RV Corella 2/81

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corella (74CX)
Cruise identifier2/81
Cruise period1981-01-27 — 1981-02-09
Port of departureLowestoft, United Kingdom
Port of returnGreat Yarmouth, United Kingdom
Objectives1. To carry out an acoustic survey for sprat, as part of an ICES co-ordinated programme, in the Thames Estuary, Southern Bight, and west central North Sea, north to about 55ºN and offshore to 4ºE.
2. To sample any major concentrations with mid-water trawl and plot the area of their distributions more precisely.
3. To calibrate the towed body transducer.
4. To carry out in situ target strength measurements on sprat using the narrow beam transducer.
5. To collect species of fish for the fish identification courses (Mr R W Blacker).
Chief scientistP O Johnson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Corella 2/81 cruise report corella2_81.pdf (0.15 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificS. Bight/W. Central North Sea
Track chartsRV Corella 2/81 cruise track — trk2669.html
Biology and fisheries 
Pelagic fishQuantity: number of hauls = 10
Acoustic reflection on marine organisms.Quantity: track kilometres = 2963.2