Sea/Ocean |
Bay of Biscay (
) |
Ports |
Port of departure : Santander (Spain)
Port of return : Brest (France)
|
Scientific Authority |
ÉCOLOGIE ET MODÈLES POUR L'HALIEUTIQUE Centre Ifremer de Nantes Rue de l'Ile d'Yeu 44311 Nantes Cedex 3 +33 (0)2 40 37 41 67 |
Participating bodie(s) |
IFREMER - Nantes, Sète, Lorient, Boulogne s/mer, Brest / Université - La Rochelle / CNRS - La Rochelle / EPHE - Perpignan / CRMM - La Rochelle /
AZTI - St Sébastien (Espagne) / IEO - Gijon (Espagne).
|
Discipline(s) |
- PHYSICAL OCEANOGRAPHY
- BIOLOGICAL OCEANOGRAPHY
- ENVIRONMENT
- FISHERIES
- CHEMICAL OCEANOGRAPHY
Code |
Label |
Quantity |
PI |
B02 |
Phytoplankton pigments (eg chloroph Fluorescence |
81 stations |
PLANQUE Benjamin |
B09 |
Zooplankton |
47 stations |
DUPUY Christine |
B13 |
Eggs & larvae CUFES + pêches verticales |
725 |
PETITGAS Pierre |
B14 |
Pelagic fish 18221 - Tailles (+poids, otolithes, prélèvements) |
- |
MASSE Jacques |
B25 |
Birds Nb d'observations |
1199 observations |
VAN CANNEYT Olivier |
B26 |
Mammals & reptiles Nb d'observations |
28 observations |
VAN CANNEYT Olivier |
B28 |
Acoustic reflection on marine organ Acquisition en continu (en h d'enreg.) |
412 hours |
MASSE Jacques |
B65 |
Exploratory fishing Chaluts pélagiques, ou mésozooplancton |
48 hauls |
MASSE Jacques |
B90 |
Other biological/fisheries meas. Prélèvements pour analyse génétique |
1150 specimens |
LENFANT Philippe |
G73 |
Single-beam echosounding 5 fréquences (18, 38, 70, 120, 200 kHz) en h |
412 hours |
MASSE Jacques |
H09 |
Water bottle stations Chlorophylle, microzooplancton |
35 stations |
DUPUY Christine |
H10 |
CTD stations Profils T, S, Fluo |
81 stations |
PLANQUE Benjamin |
H11 |
Subsurface meas. underway (T,S) T, S, Fluo (en nm) |
2500 |
PLANQUE Benjamin |
H71 |
Surface measurements underway (T,S) Thermosalinomètre |
- |
MASSE Jacques |
M06 |
Routine standard measurements Centrales vent et météo |
- |
MASSE Jacques |
|
Summary of measurements |
- -Acoustic exploration (acquisition and storage of signals on 5 frequencies) for the distribution and abundance of pelagic fish species, mainly anchovies and sardines.
-Pelagic (or bottom, or mesopelagic) trawl fisheries to identify target species and characterize resources (size distributions, demographics, biological characteristics). -Egg counts using surface pumping with the CUFES system to determining spawning zones. -Taking samples on adult sardines and anchovies for genetic analyses to distinguish whether different "groups" exist in the Bay of Biscay. -Catching plankton to characterize the biotic environment of small pelagic fish populations (biochemical indices descriptors of zooplankton dynamics). -CBT stations and continuation observation to describe hydrological conditions by associating available satellite photos and circulation modelling results following the model developed by P. Lazure. -Characterizing the diversity and abundance of microzooplankton as well as other plankton compartments in order to evaluate the structure of the plankton food web. -Identification and visual counts of cetaceans and birds present in the area to describe higher predators in the pelagic ecosystem of the Bay of Biscay. -Density column used to study vertical migration of eggs in the water column.
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Location map |
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Positionning system |
Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84
Positioning system : GPS différentiel
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Joint document(s) |
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