Sea/Ocean |
North Sea (Southern North Sea) |
Ports |
Port of departure : Brest (France)
Port of return : Boulogne (France)
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Project |
INTERNATIONAL BOTTOM TRAWL SURVEY (IBTS) - FRANCE |
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, IFREMER/Brest, IFREMER/Nantes, Université de liège, Université de Lille, Université de la Corogne (Espagne).
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Discipline(s) |
- PHYSICAL OCEANOGRAPHY
- BIOLOGICAL OCEANOGRAPHY
- FISHERIES
Code |
Label |
Quantity |
PI |
B13 |
Eggs & larvae 69 larval nets (MIK), 40 CUFES (Continuous Fish eggs sampler) |
- |
VERIN Yves |
B19 |
Demersal fish Sorting, weighing, measuring |
76 specimens |
VERIN Yves |
B26 |
Mammals & reptiles Observations on transit |
- |
VERIN Yves |
D90 |
Other physical oceanographic meas. |
- |
VERIN Yves |
G73 |
Single-beam echosounding EK500 sounder on MOVIES+ in routine (trawling and transit) |
- |
VERIN Yves |
H10 |
CTD stations Seabird SBE19 bathysonde - Temperature and salinity |
73 stations |
VERIN Yves |
|
Summary of measurements |
- -72 bottom trawl hauls (GOV 36/47 trawl) done in 58 statistical rectangles.
- With each trawl haul: weighing, determination and measurement of each species caught -determining sex and stage of sexual maturity. - With each trawl haul: otolith samples collected on the following species: cod, whiting, haddock, sprat, herring, Norway pout and plaice (about 2,880 otoliths in all). -73 vertical temperature and salinity profiles taken using the SBE 19 CTD. -69 stations with larva nets (calculation of a larval abundance index for herring and sprat). - CUFES samples. -Recording of acoustic data during the trawl hauls and on trips between stations. -Live fish captured for Nausicaa, the national sea experience centre in Boulogne/mer.
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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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