Cruise inventory

RV Corystes COR9/01

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR9/01
Cruise period2001-09-11 — 2001-10-04
StatusCompleted
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
PurposeResearch
Objectives1. To carry out a beam-trawl survey of groundfish in the Irish Sea, Bristol Channel and Celtic Sea 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.
4. To quantify the seabed sediments and epibenthos using 2m and 4m beam trawl by-catch.
5. To collect fish samples in support of other CEFAS projects and training courses.
6. To collect surface seawater samples for processing on return to Lowestoft for the analysis of tritium and caesium.
Chief scientistMyrtle J Boon (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportRV Corystes COR9/01 cruise report co9_01.pdf — access key 'C' (0.24 MB) 
Ocean/sea areas 
GeneralIrish Sea and St. George's Channel
Bristol Channel
Celtic Sea
Track chartsRV Corystes COR9/01 cruise track — cory9_01trk.pdf (0.12 MB) 
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Description: T and S taken from surface continuous water flow at all stations; surface and bottom T and S recorded at every 4m b/t station with CTD unit
CTD stationsDescription: Mini CTD unit attached to 4m beam trawl
Subsurface temperature and salinity measurementsDescription: T and S taken from surface continuous water flow at all stations; surface and bottom T and S recorded at every 4m b/t station with CTD unit
Chemical oceanography 
Trace elementsDescription: Surface water samples for tritium and caesium
Biology and fisheries 
PhytobenthosDescription: 2/4m beam trawl, day grab
ZoobenthosDescription: 2/4m beam trawl, day grab
Demersal fishQuantity: number of hauls = 101
Description: 4m beam trawls
CrustaceansQuantity: number of hauls = 101
Description: 4m beam trawls