Sea/Ocean |
English Channel North Sea (Manche Orientale/Sud de la Mer du Nord) |
Ports |
Port of departure : Boulogne (France)
Port of return : Cherbourg (France)
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Project |
Channel Ground Fish Survey,TRADITIONAL FISHERIES,INFORMATION SYSTEMS, ECONOMY, DIAGNOSIS OF RESOURCES |
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, Port en Bessin et Brest - Nausicaa |
Discipline(s) |
- BIOLOGICAL OCEANOGRAPHY
- FISHERIES
- PHYSICAL OCEANOGRAPHY
Code |
Label |
Quantity |
PI |
B14 |
Pelagic fish Pesees, denombrements, mensurations. |
102 specimens |
GARREN François |
B19 |
Demersal fish Pesees, denombrements, mensurations. |
102 specimens |
GARREN François |
B20 |
Molluscs Pesees, denombrements. |
102 specimens |
GARREN François |
B21 |
Crustaceans Pesees, denombrements. |
102 specimens |
GARREN François |
B65 |
Exploratory fishing Chalutages de fond (GOV) |
102 hauls |
GARREN François |
B90 |
Other biological/fisheries meas. Prelevement d'otolithes et d'ecailles (913 + 154) |
1067 specimens |
GARREN François |
D90 |
Other physical oceanographic meas. Releves SCANMAR |
96 hauls |
GARREN François |
H10 |
CTD stations Sonde MICREL : Temperature et salinite |
82 stations |
GARREN François |
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Summary of measurements |
- -102 trawl hauls of 30 minutes using a GOV bottom trawl with large vertical opening.
-Sorting and measuring all species caught. Measurements of commercial species caught. - Otoliths were taken on whiting (394), cod (91) and plaice (274). - Otoliths(154) and scales (154) were sampled on goatfish which were individually weighed and photographed. -Samples of 17 different species (10 individuals from each) taken for analysis on land (Halio-Authenticité programme, Laboratoire Valorisation des Produits, Ifremer Nantes). -2 x 30 seabass fins were sampled (VP laboratory, Ifremer, Nantes). -120 cod kept alive in tanks and transferred to Aquaculture resources laboratory, Ifremer, Brest. -Temperature and salinity at slacking out and turning recorded by Micrel probe attached to leadline; continuous recording for periods of 15" on the bottom during fishing operations. -Shape of trawl (horizontal and vertical openings) recorded by SCANMAR system at each haul. -Live fish and invertebrates caught for Nausicaa, National centre of the sea at Boulogne/mer.
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Location map |
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Positionning system |
Geodetic system : EUROPEAN 1950 (INTERNATIONAL)
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