RV Corystes COR12/98

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR12/98
Cruise period1998-12-01 — 1998-12-18
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To estimate swimming speed and orientation of plaice on their pre-spawning migration by simultaneous use of sector scanning sonar and ADCP.
2. To catch live plaice for fecundity studies.
3. To assess the precision of geolocation using the POL tidal model in conjunction with hydrostatic data logged by data storage tags. Time did not permit this to happen.
Chief scientistJulian David Metcalfe (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportRV Corystes COR12/98 cruise report co12_98.pdf (0.17 MB) 
Ocean/sea areas 
GeneralEnglish Channel
North Sea
SpecificSouthern North Sea, eastern English Channel
Track chartsRV Corystes COR12/98 cruise track — co12_98track.pdf (0.02 MB) 
Physical oceanography 
Current profiler (eg ADCP)Description: continuous operation of an ADCP during the tracks of the fish.
Biology and fisheries 
Demersal fishQuantity: number of hauls = 17
Description: made for plaice. The majority of which were caught using a 4m steel beam trawl, although some were caught in mid water using an Engels 800 mid-water trawl. In both cases, each trawl lasted 15 minutes.
TaggingsQuantity: number of specimens = 4
Description: plaice fitted with long-life acoustic tags.