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Registros recuperados: 5
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Composition en cires, triglycérides, protéines et sucres du mésozooplancton ArchiMer
Alayse-danet, Anne-marie; Daniel, Jean-yves; Le Coz, Jean-rene.
Analyses effectuées sur le zooplancton total des pêches verticales au WP2 et sur des animaux triés à partir des pêches horizontales (Campagne RCA sur les côtes Atlantiques du Portugal). On ne signale pas de différence significative entre la composition biochimique des populations du large et de la côte
Tipo: Text Palavras-chave: Zooplancton; Milieu marin; Composition chimique; Glucide; Cire animale; Triglycéride; Protéine; Océan Atlantique Nord; Upwelling; Méiofaune; Portugal; France; Zone côtière; Zooplankton; Marine environment; Chemical composition; Carbohydrate; Animal wax; Triglyceride; Proteins; North Atlantic; Upwelling; Meiofauna; Portugal; France; Coastal zone.
Ano: 1983 URL: http://archimer.ifremer.fr/doc/00189/29976/28429.pdf
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Flow variability near the Cape Verde frontal zone (subtropical Atlantic Ocean) ArchiMer
Vangriesheim, Annick; Bournot-marec, Claudie; Fontan, Anne-claire.
During the JGOFS-France/Eumeli programme, biogeochemical processes governing particle fluxes throughout the water column were studied in the Eastern Subtropical North Atlantic Ocean. From February 1991 to December 1992, three consecutive sets of sediment trap moorings were installed at two sites: the mesotrophic site: similar to18degrees 30 N, 21degrees 00 W, and the oligotrophic site: similar to21degrees 00 N, 31degrees 00 W. Currents were measured at each sediment trap level (250, 1000 and 2500 m) in order to understand better the dynamics in this area and its influence on the particle fluxes through the water column and to monitor the current speed conditions during the particle trapping. The results of these current measurements are presented here,...
Tipo: Text Palavras-chave: Rossby waves; Current variability; Cape Verde frontal zone; Eastern subtropical; North Atlantic ocean; Ondes de Rossby; Courant variabilité; Cap Vert; Subtropical Est; Océan Atlantique Nord.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/publication-374.pdf
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Influence des ondes de Rossby sur le système biogéochimique de l'Océan Atlantique Nord: Utilisation des données satellites couleur de l'eau et d'un modèle couplé physique/biogéochimie ArchiMer
Charria, Guillaume.
The marine phytoplankton in the ocean represents only less than 1% of global biomass. Phytoplankton performs half of all photosynthesis. This autotrophic biomass in ocean is then an essential element in the climate regulation through processes as carbon dioxide absorption during the photosynthesis. Therefore, we need to estimate precisely this biomass as well as the processes which affect it. Using remotely sensed data (altimetry and ocean colour) and a coupled physical/biogeochemical model (MERCATOR-OPA/NPZDDON), Rossby waves and their influence on phytoplankton biomass are specifically studied in the North Atlantic Ocean. Their features and their influences on surface chlorophyll concentrations were analysed. Through the different mechanisms identified,...
Tipo: Text Palavras-chave: Coupled physical/biogeochemical modelling; Multi sensor wavelet analysis; Ocean carbon cycle; North Atlantic Ocean; Primary production; Ocean colour; Altimetry; Rossby (or planetary) waves; Planetary waves; Coupled physical/biogeochemical oceanography; Modélisaiton couplée physique/biogéochimie; Analyse en ondelettes multi capteurs; Cycle océanique du carbone; Océan Atlantique Nord; Production primaire; Couleur de l'eau; Altimétrie; Ondes de Rossby ou planétaires; Océanographie couplée physique/biogéochimie.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/these-2454.pdf
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Les dinophycées pélagiques et benthiques du Golfe de Gascogne sud de la Bretagne à Arcachon ArchiMer
Paulmier, Gerard.
Les microphytes planctoniques et benthiques du Golfe de Gascogne sont relativement diversifiés. Cette diversification est probablement en rapport avec la situation hydrologique particulière de cette région enrichie par des mélanges de masses d'eau de diverses origines et par des apports continentaux importants. Dans ce contexte, les dinophycées sont nombreuses et variées et occupent toutes les niches écologiques. 230 taxons ont été répertoriés. Quelques espèces sont connues pour provoquer périodiquement des colorations de la mer "eaux rouges" et quelques-unes sont maintenant redoutées pour leur toxicité.
Tipo: Text Palavras-chave: Zone pélagique; Zone benthique; Phytoplancton; Diversité espèces; Niche écologique; Inventaire floristique; Cycle développement; Répartition géographique; Morphologie; Pyrrophycophyta; Golfe de Gascogne; Bretagne; Landes; Algae; Thallophyta; Océan Atlantique Nord; Océan Atlantique; France; Europe; Aquitaine; Pelagic zone; Benthic zone; Phytoplankton; Species diversity; Niche; Floral survey; Life cycle; Geographic distribution; Morphology; Pyrrophycophyta; Bay of Biscay; Bretagne; Landes; Algae; Thallophyta; North Atlantic; Atlantic Ocean; France; Europe; Aquitaine.
Ano: 1994 URL: http://archimer.ifremer.fr/doc/00260/37097/35613.pdf
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Présence d'un Protogonyaulax sp. sur le littoral atlantique français pendant l'hiver 1987 ArchiMer
Lassus, Patrick; Bardouil, Michele.
A dinoflagellate belonging to Protogonyaulax genera and forming more than 20 cells chains was observed from November 1987 to February 1988 in Vilaine Bay and in the west ofIle d'Yeu (France). This species was not detected in coastal phytoplankton during preceding surveys. Close to Protogonyaulax affinis it seems to be a winter developing species for this coastal area. Vertical distribution shows in december a migration of the patch towards deeper layers. Increasing occurrences of species belonging to Protogonyaulax (Alexandrium Balech) genera inshore or coastal waters need to pay more attention to the taxonomy of such organisms. Some species are effectively well known as poisons producers.
Tipo: Text Palavras-chave: Pyrrophycophyta; Milieu marin; Morbihan; Vendée; Océan Atlantique Nord; Plancton; Morphologie; Algae; Thallophyta; Bretagne; France; Europe; Pays de Loire; Océan Atlantique; Pyrrophycophyta; Marine environment; Morbihan; Vendée; North Atlantic; Plankton; Morphology; Algae; Thallophyta; Bretagne; France; Europe; Pays de Loire; Atlantic Ocean.
Ano: 1988 URL: http://archimer.ifremer.fr/doc/00133/24474/22485.pdf
Registros recuperados: 5
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