Cruise inventory

RV Corella 8/69

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corella (74CX)
Cruise identifier8/69
Cruise period1969-04-24 — 1969-05-05
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
Objectives1. To carry out routine sampling of turbot and brill in the
Middle North Sea.
2. To bring back live turbot and brill for laboratory experiments
on the incubation and rearing of eggs and larvae.
3. To assess the feasibility of using gill nets and long lines for
the capture of turbot.
4. To carry out artificial fertilization at sea, returning fertilized
eggs live to the laboratory.
5. Primary production: To determine whether exponential growth can
be maintained in a bottle using natural daylight instead of artificial light.
6. To collect live mature dover soles for Mr. Thacker.
7. To oollect young flatfish of all species and return live for Mr Birkett.
8. To collect live echinoderms for Mr. Lockwood.
9. To carry out routine sampling of plaice and dabs for Mr. Bannister and Mr. C. Lee respectively.
Chief scientistA Jones (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory)
Cruise reportRV Corella 8/69 cruise report corella08_69.pdf — access key 'C' (0.18 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificCleaver Bank, Tail End, Turbot Bank, outer Horn Reef, Pits and Middle Shoal area, Mablethorpe grounds, Jim Howe's Bank
Measurements 
Biology and fisheries 
Eggs and larvaeQuantity: number of specimens = 30
Description: 15 turbot and 15 brill were returned live to the laboratory for experiments on the incubation and rearing of eggs and larvae
Demersal fishQuantity: number of specimens = 20
Description: Dover soles from the Mablethorpe ground were returned live to the laboratory
Demersal fishQuantity: number of stations = 51
Description: Trawling stations, duration of tow 1 1/2 hours except for Mablethorpe area where it was 1 hour
Demersal fishQuantity: number of specimens = 89
Description: 15 turbot and 74 brill caught. 15 turbot and 15 brill were returned live to the laboratory