Sea/Ocean |
English Channel North Sea (Eastern Channel and Southern North Sea) |
Ports |
Port of departure : Boulogne (France)
Port of return : Cherbourg (France)
|
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 Weighing, counting, measuring |
102 specimens |
GARREN François |
B19 |
Demersal fish Weighing, counting, measuring |
102 specimens |
GARREN François |
B20 |
Molluscs Weighing, counting |
102 specimens |
GARREN François |
B21 |
Crustaceans Weighing, counting |
102 specimens |
GARREN François |
B65 |
Exploratory fishing Bottom trawling GOV |
102 hauls |
GARREN François |
B90 |
Other biological/fisheries meas. Otolith and scale sampling |
1067 specimens |
GARREN François |
D90 |
Other physical oceanographic meas. SCANMAR surveys |
96 hauls |
GARREN François |
H10 |
CTD stations Micrel probe: T°C and salinity |
82 stations |
GARREN François |
|
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.
|
Location map |
|
Positionning system |
Geodetic system : EUROPEAN 1950 (INTERNATIONAL)
|
|