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	Provedor de dados ArchiMer (2) Autor Arzul, Genevieve (1) Clement, Alejandro (1) Harris, Rp (1) Martin-jezequel, Veronique (1) Moal, Jeanne (1) Pinier, Anne (1) Poulet, Sa (1) Samain, Jean-francois (1) Mais... Palavra-chave Faeces (2) Fécès (2) Acides aminés (1) Aliment (1) Ammo acids (1) Antibiotic (1) Antibiotique (1) Aquaculture (1) Copepods (1) Copépodes (1) Feed (1) Fish farming (1) Growth regulation (1) Phytoplancton (1) Phytoplankton (1) Régulation de croissance (1) Urea (1) Urée (1) Mais... Tipo do documento Text (2) Ano 1996 (1) 1986 (1) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Free amino-acids in copepod fecal pellets ArchiMer Poulet, Sa; Harris, Rp; Martin-jezequel, Veronique; Moal, Jeanne; Samain, Jean-francois. By measuring water soluble extracts of free amino acids (DF AA) in the diets and faecal pellets of copepods using high performance liquid chromatography (HPLC), it was found that the molar composition of these molecules in the faeces produced depends on the type of food selected and reflects the hydrolysis of food proteins during digestion. On average, four amino acids (ASP, SER, GLY and LEU) together accounted for 63% of total DF AA in the faecal pellets of a variety of copepod species. The diversity of DFAA in copepod faecal pellets was higher than in sea water or in particles and phytoplankton cells ingested by copepods. These first results on DFAA in copepod faecal material indicate the importance of zooplankton faeces in the flux of dissolved nitrogen... Tipo: Text Palavras-chave: Acides aminés; Copépodes; Fécès; Ammo acids; Copepods; Faeces. Ano: 1986 URL: http://archimer.ifremer.fr/doc/00111/22269/19944.pdf Effects on phytoplankton growth of dissolved substances produced by fish farming ArchiMer Arzul, Genevieve; Clement, Alejandro; Pinier, Anne. Fish Farming enriches the water column in dissolved organic and inorganic material. These materials excreed by the fish, elutriate from uneaten food and derive from other polluting substances. Ratios of the organic/inorganic forms of substances (for example N and P) are thus modified. Such perturbations in turn affect phytoplankton development. From in vitro analyses and tests of water taken from a turbot rearing tank, we show the changes in seawater chemical composition produced as well as the way growth was modified in three phytoplankton species: the diatom, Chaetoceros gracile, and the dinoflagellates, Gymnodinium cf. nagasakiense and Alexandrium minutum. Elutriates from the granules used for feed (0.1 to 100 mg.l(-1)) were found to be stimulating,... Tipo: Text Palavras-chave: Antibiotique; Fécès; Aliment; Aquaculture; Régulation de croissance; Phytoplancton; Urée; Antibiotic; Faeces; Feed; Fish farming; Growth regulation; Phytoplankton; Urea. Ano: 1996 URL: http://archimer.ifremer.fr/doc/00188/29887/28340.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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