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RV Corystes COR8/99
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RV Corystes (74RY) |
Cruise identifier | COR8/99 |
Cruise period | 1999-08-24 — 1999-09-05 |
Status | Completed |
Port of departure | Lowestoft, United Kingdom |
Port of return | Lowestoft, United Kingdom |
Purpose | Research |
Objectives | 1. To undertake a beam trawl survey in the southern North Sea and eastern Channel as part of an international programme to i) obtain fisheries independent data on the distribution and abundance of commercial flatfish species, and ii) to derive age compositions of sole and plaice for use in the assessment of stock size.
2. To quantify the seabed sediments and epibenthos using trawl by-catch data and remote acoustic seabed discrimination systems (QTC), in order to describe the association between the substrate and the distribution and abundance of invertebrate by-catch. These data will enable us to more accurately assess the degree of association between benthic populations and seabed physical structure, and hence to advise on the implications of anthropogenic activity in coastal waters. 3. To collect additional biological data on non-commercial fish by-catch, and on commercially important non-quota species, especially turbot, brill, and cuttlefish, to improve our knowledge of these poorly studied species. |
Chief scientist | Stuart Ian Rogers (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory) |
Cruise report | (0.14 MB) |
Ocean/sea areas | |
General | English Channel |
Specific | Eastern English Channel |
Track charts | |
Measurements | |
Biology and fisheries | |
Sediment traps | Quantity: number of stations = 40 Description: Samples of sediment collected with day grab and returned for P.S.A. |
Demersal fish | Quantity: number of stations = 70 Description: 4m beam trawl |
Geology and geophysics | |
Grab | Quantity: number of stations = 40 Description: Samples of sediment collected with day grab and returned for P.S.A. |