| Sea/Ocean |
Bay of Biscay |
| Ports |
Port of departure : Santander (Spain)
Port of return : Brest (France)
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| 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, Boulogne s/mer, Brest
Université - La Rochelle
CNRS - Chizé, La Rochelle
EPHE - Perpignan
AZTI - St Sébastien (Espagne)
INRA - Thonon
CRMM - La Rochelle
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| Discipline(s) |
- PHYSICAL OCEANOGRAPHY
- BIOLOGICAL OCEANOGRAPHY
- CHEMICAL OCEANOGRAPHY
- ENVIRONMENT
- FISHERIES
| Code |
Label |
Quantity |
PI |
| B02 |
Phytoplankton pigments (eg chloroph |
80 stations |
PLANQUE Benjamin |
| B09 |
Zooplankton |
53 stations |
DUPUY Christine |
| B13 |
Eggs & larvae CUFES + vertical fishing |
955 |
PETITGAS Pierre |
| B14 |
Pelagic fish Sizes (+ weights, otoliths, samples) |
16615 observations |
MASSE Jacques |
| B25 |
Birds |
983 observations |
BRETAGNOLLE Vincent |
| B26 |
Mammals & reptiles |
45 observations |
VAN CANNEYT Olivier |
| B28 |
Acoustic reflection on marine organ Continuous acquisition (2300 nm) |
- |
MASSE Jacques |
| B65 |
Exploratory fishing Pelagic trawls, or mesozooplankton |
42 hauls |
MASSE Jacques |
| B90 |
Other biological/fisheries meas. Samples for genetic analysis |
34 specimens |
MASSE Jacques |
| D06 |
Neutrally buoyant floats |
4 deployments |
LAZURE Pascal |
| G73 |
Single-beam echosounding 5 frequencies (18, 38, 70, 120, 200 kHz) |
2300 hours |
MASSE Jacques |
| H09 |
Water bottle stations Chlorophyll, microzooplankton |
30 stations |
DUPUY Christine |
| H10 |
CTD stations T, S, Fluo profiles |
80 stations |
PLANQUE Benjamin |
| H11 |
Subsurface meas. underway (T,S) T, S, Fluo (2300 nm) |
- |
PLANQUE Benjamin |
| H17 |
Optics (eg underwater light levels) LOPC |
52 stations |
PLANQUE Benjamin |
| H71 |
Surface measurements underway (T,S) Thermosalinograph |
- |
MASSE Jacques |
| M06 |
Routine standard measurements Wind and weather stations |
- |
MASSE Jacques |
|
| Summary of measurements |
- -Acoustic prospection (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 mesopelagos) trawl fisheries to identify target species and characterize resources (size distributions, demographics, biological characteristics). -Counting eggs 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 modeling results following the model developed by P. Lazure. -Characterizing the diversity and abundance of micro zooplancton 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 naturel et différentiel
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| Joint document(s) |
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