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	Provedor de dados ArchiMer (1) Autor Heral, Maurice (1) Maestrini, Serge (1) Robert, Jean-michel (1) Zanette, Yvan (1) Palavra-chave Azote organique dissous (1) Claire à huîtres (1) Dissolved organic nitrogen (1) Excretion by oysters (1) Excrétion de l'huître (1) Indice de fertilité (1) Oyster pond (1) Photoheterotrophy (1) Photohétérotrophie (1) Yield index (1) Mais... Tipo do documento Text (1) Ano 1981 (1) País France (1) Idioma Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Production des micro-algues des claires ostréicoles en relation avec l'azote organique dissous excrété par les huîtres ArchiMer Robert, Jean-michel; Maestrini, Serge; Heral, Maurice; Zanette, Yvan. Estimations of algal growth potential (AGP) of oyster-pond waters have been made by the use of bioassays and nutrient analysis. Data obtained demonstrated that nitrogen is the nutrient Iimiting AGP and that an important part of algal biomass is supported by organic nutrients. Such an uptake ranges from 0.6 to 30.7 µg-at.I-1 nitrogen ; which represents up to six times the total amount of inorganic nitrogen taken up. U.V oxydation and subsequent chemical analysis shown DON concentrations in oyster-pond waters varied with oyster presence or absence: values recorded were 10-40 µg-at N.I-1 when oysters were not present, and up to 50-60 µg-at N.I-1 when oysters were covering the bottom of the pond. The oyster Crassostrea gigas was demonstrated to excrete 77-93 %... Tipo: Text Palavras-chave: Photoheterotrophy; Excretion by oysters; Dissolved organic nitrogen; Yield index; Oyster pond; Photohétérotrophie; Excrétion de l'huître; Azote organique dissous; Indice de fertilité; Claire à huîtres. Ano: 1981 URL: http://archimer.ifremer.fr/doc/1981/acte-2946.pdf Registros recuperados: 1 Primeira ... 1 ... Última

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