RV Corella 4/70

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corella (74CX)
Cruise identifier4/70
Cruise period1970-04-07 — 1970-04-20
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To investigate by means of echo-survey and mid-water trawling the
distribution of sprat shoals off the northeast and east coasts of
England, over the Southern Bight and along the English Channel.
2. As well as normal biological sampling, additional rnaterial will also
be collected for fecundity studies and muscle estorase analysis.
3. Herring will also be sampled when taken and the incidence of
nematode infection examined.
4. Continuous surface temperature observations will be made using a
thermistor and paper recorder.
Chief scientistP O Johnson (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Corella 4/70 cruise report corella04_70.pdf (0.12 MB) 
Ocean/sea areas 
GeneralNorth Sea
Physical oceanography 
Water bottle stationsDescription: T surface only
Biology and fisheries 
Pelagic fishQuantity: number of surveys = 9
Description: invest.of shoals with echo sounder
Acoustic reflection on marine organisms.Quantity: number of surveys = 9
Description: invest.of shoals with echo sounder
Other meteorological measurementsDescription: sea and swell