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This deliverable is composed of two reports which propose indice of phytoplankton composition, based respectively on the results of pigment and genetic diversity methods, and the results of microscopy method. Proposals based on the results of pigment and genetic diversity methods. The present work...Contributeur (s):
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Siano, Raffaele / Delmas, Daniel / Lampert, Luis - 2015Contributeur (s):
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This deliverable is composed of two reports which propose indice of phytoplankton composition, based respectively on the results of pigment and genetic diversity methods, and the results of microscopy method. Proposals based on the results of pigment and genetic diversity methods. The present work...Contributeur (s):
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Siano, Raffaele / Delmas, Daniel / Lampert, Luis - 2015Contributeur (s):
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Delmas, Daniel / Siano, Raffaele - 2014Studies on phytoplankton community diversity cannot be limited microphytoplankton (cells>20 ìm), it is indeed necessary to take into account also the nano (3-20ìm) picophytoplankton (<3 ìm) components. In the frame of this work aimed at studying temporal phytoplankton community diversity two...Contributeur (s):
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Delmas, Daniel / Siano, Raffaele - 2014Studies on phytoplankton community diversity cannot be limited microphytoplankton (cells>20 ìm), it is indeed necessary to take into account also the nano (3-20ìm) picophytoplankton (<3 ìm) components. In the frame of this work aimed at studying temporal phytoplankton community diversity two...Contributeur (s):
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Lampert, Luis / Perrot, Laurie / Delmas, Daniel - 2016A partir des échantillons collectés lors de la campagne TIC-MOC (mars 2015) sur le plateau continental argentin, des analyses en pigments phytoplanctoniques permettent de quantifier la distribution des principales classes algales par la méthode CHEMTAX. Les Prochlorophycées et cyanobactéries sont...Contributeur (s):
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Belin, Catherine / Chapelle, Annie / Delmas, Daniel / Nezan, Elisabeth / Siano, Raffaele - 2013Les efflorescences de la diatomée Pseudo-nitzschia sont largement répandues sur les côtes Manche-Atlantique depuis une trentaine d’années (source Rephy). Depuis les années 2000 elles y sont parfois associées des événements toxiques du type ASP (Amnesic Shellfish Poisonning) qui perturbent...Contributeur (s):
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Dans un bassin aquacole fermé (claires à huîtres), l'évolution qualitative et quantitative des matières en suspension subit des variations saisonnières directement liées aux capacité de production planctonique. Ainsi, à la fin du printemps et en été, le réchauffement des eaux s'accompagne...Contributeur (s):
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Delmas, Daniel / Herbland, Alain / Maestrini, Serge / Mornet, Francoise / Morand, Philippe / Spano, Anna-maria / Burgeot, Thierry / Margat, Sylvie / Charpentier, Gabriel / Fillon, Alain / Leguay, Didier / Thomas, Gerard / Bacher, Cedric / Heral, Maurice / Prou, Jean - 1990Environmental and species features which lead to increases in cell density of the D.S.P. Dinoflagellate Dinophysis in inshore and offshore waters of the île de Ré - île d'Oléron area, France (cruises "Dinopertuis89"). Four weekly sampling series have been carried out, within 10 May...Contributeur (s):
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Martin, Jean-louis / Sornin, Jean-marc / Delmas, Daniel / El Sayed, Mohamed A. / Berthet, Brigitte - 1989Au cours de cette étude, nous avons étudié l'impact de la biodéposition sur les bassins conchylicoles. La biodéposition constitue un "concentrateur" de particules fines au niveau du sédiment. Cet impact est particulièrement évident sur les sédiments sableux et concerne la...Contributeur (s):
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Delmas, Daniel - 1980The étang de Berre, near Marseilles (France), is an inland brackish basin with a high primary rate of production. In 1966, the diversion of the Durance River introduced important hydrological changes. A study of organic matter mineralization and ionie exchanges at the water-sediment interface has...Contributeur (s):
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Delmas, Daniel - 1983Carbohydrates have been analysed in arder to establish the state of organic matter in sediment. Samples were collected bath in neritic and oceanic (Orgon croises) areas. Reported data demonstrate that the insoluble-carbohydratesfsoluble-carbohydrates ratio (1/S) is a good indicator of organic...Contributeur (s):
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Garet, Marie-josé / Reymond, Hugues / Delmas, Daniel - 1997The effect of fish farming on dissolved amino acid concentrations, bacterioplankton abundance and exoproteolytic activity was assessed in 3 experimental marine ponds. Different standing stocks of fish were introduced (semi-intensive pond: 250 g.m(-2); semi-extensive pond: 50 g.m(-2) control pond: 0...Contributeur (s):
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high alkaline phosphatase activity in phosphate replete waters: the case of two macrotidal estuariesLabry, Claire / Delmas, Daniel / Youenou, Agnes / Quere, Julien / Leynaert, Aude / Fraisse, Stephane / Raimonet, Melanie / Ragueneau, Olivier - 2016The occurrence of alkaline phosphatase activity (APA) that hydrolyses organic phosphorus into phosphate (PO4) is commonly related to PO4 deficiency of oceanic, coastal and fresh waters. APA is almost never investigated in PO4-rich estuaries, since very low activities are expected to occur. As a...Contributeur (s):