Sea/Ocean |
North Sea (Southern North Sea) |
Ports |
Port of departure : Boulogne (France)
Port of return : Boulogne (France)
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Project |
INTERNATIONAL BOTTOM TRAWL SURVEY (IBTS) - FRANCE,INFORMATION SYSTEMS, ECONOMY, DIAGNOSIS OF RESOURCES |
Scientific Authority |
CENTRE MANCHE-MER DU NORD IFREMER Centre de Boulogne sur Mer 150 quai Gambetta 62321 BOULOGNE-SUR-MER CEDEX +33 (0)3 21.99.56.00 https://www.ifremer.fr/fr/implantations/l-ifremer-en-manche-mer-du-nord |
Participating bodie(s) |
IFREMER Boulogne / Brest / Nantes, Université du Havre, Université de Liege. |
Discipline(s) |
- CHEMICAL OCEANOGRAPHY
- BIOLOGICAL OCEANOGRAPHY
- PHYSICAL OCEANOGRAPHY
Code |
Label |
Quantity |
PI |
B19 |
Demersal fish Sorting, weighing, measuring |
62 specimens |
VERIN Yves |
D90 |
Other physical oceanographic meas. Age determination for the main commercial species |
3000 specimens |
VERIN Yves |
G73 |
Single-beam echosounding EK500 sounder on MOVIES+ in routine |
- |
VERIN Yves |
H10 |
CTD stations Seabird SBE19 bathysonde - Temperature and salinity |
60 stations |
VERIN Yves |
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Summary of measurements |
- -62 bottom trawl hauls (GOV 36/47 trawl) done in 58 statistical rectangles.
- With each trawl haul: weighing, determination and measurement of each species caught -determination of sex and stage of sexual maturity, sampling of otoliths from the following species: cod, haddock, whiting, sprat, herring, pout. -60 vertical temperature and salinity profiles taken using the SBE 19 CTD. -Tissue samples taken for the analysis of heavy metals (University of Liege). -Flounder and dab flounder gonad samples taken for the study of the biological effects of chemical contaminants on fishery resources. -Live catches of cod (80) for the RA laboratory (IFREMER/Brest) for cod aquaculture trials.
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Location map |
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Positionning system |
Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84
Positioning system : GPS naturel et différentiel
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