RV Cefas Endeavour 10/04

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Cefas Endeavour (74E9)
Cruise identifier10/04
Cruise period2004-08-05 — 2004-09-04
Port of departureLowestoft, United Kingdom
Port of returnLowestoft, United Kingdom
ObjectivesTo carry out the quarter 3 International Groundfish Survey of the North Sea, sampling at 75 primary stations covering the area from latitude 51° 45'N to 61° 30'N. At each station, a 30 minute tow was made with the GOV bottom trawl with micro CTD attached. The total catch taken in the GOV trawl was weighed and measured by species. Age/length keys will be produced from selected commercially important species. Surface water samples taken at 37 primary stations for caesium and tritium analysis. A 5 min 2m beam trawl haul was conducted at 32 selected main trawl positions and a set of 5 Van Veen grab deployments at 24 of those 32 to provide benthos data. This work was part of an EU funded project 'Managing Fisheries to Conserve Groundfish and Benthic Invertebrate Species Diversity'. Surface water samples were collected from 37 sites for caesium and tritium analysis.
Chief scientistTrevor W Boon (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory)
ProjectInternational Bottom Trawl Surveys - North Sea
Cruise programmeRV Cefas Endeavour 10/04 cruise programme endeavour10_04.pdf  (0.02 MB) 
Cruise reportRV Cefas Endeavour 10/04 cruise report endeavour10_04.pdf (0.19 MB) 
Ocean/sea areas 
GeneralNorth Sea
Track chartsRV Cefas Endeavour 10/04 cruise track — endeavour10_04ros4643trk.pdf (0.10 MB)  RV Cefas Endeavour 10/04 cruise track — endeavour10_04trk.pdf (0.15 MB) 
Physical oceanography 
CTD stationsQuantity: number of stations = 75
Description: Micro CTD profiles
Chemical oceanography 
RadioactivityQuantity: number of stations = 37
Description: Surface water samples for caesium and tritium analysis
Biology and fisheries 
ZoobenthosQuantity: number of stations = 32
Description: Epi-benthic samples from 2m beam trawl
ZoobenthosQuantity: number of stations = 24
Description: Benthic material from Van Veen grab
Pelagic fishQuantity: number of stations = 72
Description: GOV catches of all fish species
Demersal fishQuantity: number of stations = 72
Description: GOV catches of all fish species