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RV Corystes COR2/02
Cruise summary report
Cruise Info. | |
Ship name (ship code) | RV Corystes (74RY) |
Cruise identifier | COR2/02 |
Cruise period | 2002-04-08 — 2002-04-14 |
Status | Completed |
Port of departure | Lowestoft, United Kingdom |
Port of return | Lowestoft, United Kingdom |
Purpose | Research |
Objectives | 1. To catch and tag cod with coded acoustic pingers and to deploy new CEFAS
data transmitting sonar buoy to monitor their subsequent residence within the vicinity of the Indefatigable Bank. 2. To use acoustic & fishing survey methods to estimate the abundance and distribution of sandeels on sandeel fishing grounds on the western Dogger Bank. 3. To use fishing survey methods to estimate the abundance and distribution of predatory fish feeding on sandeels on the sandeel fishing grounds on the western Dogger Bank. 4. To use QTC to describing sediment type in relation to sandeel distribution and abundance. 5. To carry out a shipboard experiment to determine gut evacuation rates of sandeels. |
Chief scientist | Julian David Metcalfe (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory) |
Cruise report | (0.22 MB) |
Ocean/sea areas | |
General | North Sea |
Measurements | |
Physical oceanography | |
CTD stations | Description: taken regularly along acoustic survey grid |
Surface drifters/drifting buoys | Quantity: number of deployments = 1 Description: data transmitting sonar buoy |
Biology and fisheries | |
Phytoplankton | Description: plankton samples taken along acoustic survey grid |
Zooplankton | Description: plankton samples taken along acoustic survey grid |
Pelagic fish | Quantity: number of hauls = 9 Description: Granton trawl, including: haddock and whiting |
Demersal fish | Quantity: number of hauls = 54 Description: dredge survey for sandeels |
Demersal fish | Quantity: number of hauls = 9 Description: Granton trawl, including: cod and gurnard |
Other biological/fisheries measurement | Quantity: number of samples = 20 Description: stomach contents from each of haddock, whiting and gurnard from every haul |
Geology and geophysics | |
Dredge | Quantity: number of hauls = 54 Description: dredge survey for sandeels |
Multi-beam echosounding | Quantity: number of surveys = 3 Description: acoustic survey |