Sea/Ocean |
English Channel North Sea (Eastern Channel and Southern North Sea (ICES VIId and IVc)) |
Ports |
Port of departure : Boulogne (France)
Port of return : Cherbourg (France)
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Project |
Channel Ground Fish Survey,Fisheries Information System (FIS) |
Scientific Authority |
SCIENCES ET TECHNOLOGIES HALIEUTIQUES - PLOUZANÉ Centre Ifremer Bretagne ZI Pointe du Diable 29280 Plouzané +33 (0)2 98 22 43 66 |
Participating bodie(s) |
IFREMER Boulogne et Port-en-Bessin / Nausicaa |
Discipline(s) |
- FISHERIES
- PHYSICAL OCEANOGRAPHY
Code |
Label |
Quantity |
PI |
B14 |
Pelagic fish Weights, counts, measurements |
108 specimens |
LE ROY Didier |
B19 |
Demersal fish Weights, counts, measurements |
108 specimens |
LE ROY Didier |
B20 |
Molluscs Weights and counts |
108 specimens |
LE ROY Didier |
B21 |
Crustaceans Weights and counts |
108 specimens |
LE ROY Didier |
B65 |
Exploratory fishing Bottom trawling (GOV) |
110 hauls |
LE ROY Didier |
B90 |
Other biological/fisheries meas. Sampling of otholiths and scales |
- |
LE ROY Didier |
D90 |
Other physical oceanographic meas. SCANMAR surveys |
110 hauls |
LE ROY Didier |
H10 |
CTD stations Micrel probe: temperature and salinity |
110 stations |
LE ROY Didier |
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Summary of measurements |
- -110 trawl hauls of 30 minutes using a GOV bottom trawl with large vertical opening, 108 of which were validated. Sorting and weighing of all species caught. Measurements of commercial species and cephalopods caught.
-Otoliths were taken on whiting (418), cod (27) and plaice (510). -Individual weight, sex and stage of sexual maturity recorded for plaice. -Surface salinity and temperature recorded by Micrel probe attached to lead line while deploying and turning; continuous recording (periods of 15") on the bottom during fishing operations. -Display of the trawl's geometry with each haul (horizontal and vertical openings) using the SCANMAR system. - 30 plaice sampled for the University of Caen. -Live fish and invertebrates captured for Nausicaa, the national sea experience centre in Boulogne/mer. -One specimen out of a list of selachians was taken for the museum of natural history.
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Location map |
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Positionning system |
Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84
Positioning system : GPS naturel
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Joint document(s) |
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