RV Corystes COR9/01
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Corystes (74RY) |
| Cruise identifier | COR9/01 |
| Cruise period | 2001-09-11 — 2001-10-04 |
| Status | Completed |
| Port of departure | Lowestoft, United Kingdom |
| Port of return | Lowestoft, United Kingdom |
| Purpose | Research |
| Objectives | 1. 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 scientist | Myrtle J Boon (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory) |
| Cruise report |  (0.24 MB) |
| Ocean/sea areas | |
| General | Irish Sea and St. George's Channel Bristol Channel Celtic Sea |
| Track charts | (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 stations | Description: Mini CTD unit attached to 4m beam trawl |
| Subsurface temperature and salinity measurements | 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 |
| Chemical oceanography | |
| Trace elements | Description: Surface water samples for tritium and caesium |
| Biology and fisheries | |
| Phytobenthos | Description: 2/4m beam trawl, day grab |
| Zoobenthos | Description: 2/4m beam trawl, day grab |
| Demersal fish | Quantity: number of hauls = 101 Description: 4m beam trawls |
| Crustaceans | Quantity: number of hauls = 101 Description: 4m beam trawls |
