Participate in the ICES coordinated International Bottom Trawl Survey. The IBTS is designed to acquire recruitment indices and tuning data for several finfish species. The recruitment indices are used in ICES assessment working groups (herring, North Sea demersal fish, mackerel) and ACOM. Data on spatial and temporal distribution of fish species are used for ecosystem studies. A further objective is to obtain hydrographical data (CTD stations).
Ralf van Hal (Institute for Marine Resources and Ecosystem Studies, IJmuiden)
ICES International Bottom Trawl Survey
International Council for the Exploration of the Sea (ICES)
English Channel North Sea
English Channel (East of 0°), southern and central North Sea (south of 57.5°N)