RV Corystes COR13B/03

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR13B/03
Cruise period2003-09-21 — 2003-10-04
Port of departureDublin, Ireland
Port of returnLowestoft, United Kingdom
ObjectivesTo carry out a 4m beam-trawl survey of groundfish to i) obtain fisheries independent data on the distribution and abundance of commercial flatfish species, and ii) derive age compositions of sole and plaice for use in the assessment of stock size.
To collect biological data, including maturity and weight at age of sole, plaice, lemon sole and other commercially important finfish species.
To determine the distribution and relative abundance of juvenile and adult sole and plaice.
To quantify the seabed sediments and epibenthos using 4m beam trawl by-catch.
To collect fish samples in support of other CEFAS projects and training courses.
Chief scientistMyrtle J Boon (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise programmeRV Corystes COR13B/03 cruise programme cory13_03.pdf  (0.08 MB) 
Cruise reportRV Corystes COR13B/03 cruise report cory13_03.pdf (0.18 MB) 
Ocean/sea areas 
GeneralEnglish Channel
Irish Sea and St. George's Channel
Bristol Channel
Celtic Sea
SpecificIrish Sea, Bristol Channel, Celtic Sea, Western English Channel
Track chartsRV Corystes COR13B/03 cruise track — cory13_03trk.pdf (0.11 MB) 
Physical oceanography 
Surface measurements underway (T,S)Description: Temperature and salinity taken at all stations from surface continuous water flow
CTD stationsDescription: Surface and bottom temperature and salinity recorded at all b/t stations with CTD unit
Chemical oceanography 
RadioactivityDescription: Surface water samples for tritium and caesium radioactive isotope analysis
Biology and fisheries 
PhytobenthosDescription: 4m beam trawl for phytobenthos and zoobenthos
ZoobenthosDescription: 4m beam trawl for phytobenthos and zoobenthos
Demersal fishDescription: 4m beam trawl for demersal fish and crustaceans
CrustaceansDescription: 4m beam trawl for demersal fish and crustaceans