RV Corystes COR13A/03

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR13A/03
Cruise period2003-09-04 — 2003-09-19
Port of departureLowestoft, United Kingdom
Port of returnDublin, Ireland
Objectives1. To 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.
2. To collect biological data, including maturity and weight at age of sole, plaice, lemon sole and other commercially important finfish species.
3. 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.
5. To collect surface sea-water samples fo processing on return to Lowestoft for the analysis of tritium (AE001). (B. Smith EG 1).
6. To collect live fish and fecundity samples in support of plaice recruitment project (CO423).
7. To collect fish samples in support of other CEFAS projects and training courses.
Chief scientistIan David Holmes (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise programmeRV Corystes COR13A/03 cruise programme cory13_03.pdf  (0.08 MB) 
Cruise reportRV Corystes COR13A/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 COR13A/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: Micro CTD unit attached to 4 m beam trawl
Subsurface temperature and salinity measurementsDescription: Surface and bottom temperature and salinity recorded at all b/t stations with CTD unit
Trace metalsDescription: Surface water samples for tritium and caesium analysis
Biology and fisheries 
PhytobenthosDescription: 4 m beam trawl
ZoobenthosDescription: 4 m beam trawl
Demersal fishDescription: 4 m beam trawl
CrustaceansDescription: 4 m beam trawl