RV Corystes COR15/02

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Corystes (74RY)
Cruise identifierCOR15/02
Cruise period2002-11-01 — 2002-11-09
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
Objectives1. To use acoustic and fishing survey methods to estimate the abundance and distribution of sandeels (Ammodytes marinus) on sandeel fishing grounds on the western Dogger Bank.
2. To use QTC and sidescan methods to describe and identify seabed habitats, especially those occupied by sandeels, and to ground-truth those methods with grab-sampling gear e.g. Hamon grab.
3. To assess growth, age and maturity state of sandeels.
4. To recover, service and re-deploy the CEFAS data transmitting sonar buoy on the Indefatigable Bank.
Chief scientistDavid Andrew Righton (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
Cruise reportRV Corystes COR15/02 cruise report cory15_02.pdf (0.22 MB) 
Ocean/sea areas 
GeneralNorth Sea
Specificwestern Dogger Bank, Indefatigable Bank
Physical oceanography 
CTD stationsQuantity: number of stations = 54
Description: CTD casts
Biology and fisheries 
PhytoplanktonQuantity: number of stations = 54
Description: sampled using 0.5m ring net.
ZooplanktonQuantity: number of stations = 54
Description: sampled using 0.5m ring net.
Pelagic fishQuantity: number of stations = 54
Description: Sandeel samples taken using a 1.2m sandeel dredge towed for 10 minutes at each station