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Registros recuperados: 22
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Small-scale variability of zooplankton pyruvate kinase activity in the Gironde Estuary plume (Atlantic French Coast): A case study under unusually low freshwater discharge ArchiMer
Bergeron, Jean-pierre.
Pyruvate kinase (PK) activity measurements are used to assess the role of carbohydrates in global feeding of mesozooplankton communities inhabiting an estuary plume. As a consequence of a remarkably low freshwater discharge rate, the sea surface layers of the area under estuarine influence showed a very moderate salinity fall and a nearly total depletion in nitrates, whereas higher levels of these nutrients were found in deeper, more saline, layers. Small-scale PK activity variations in mesozooplankton appear to be closely correlated to nitrate integration values within the water column. The results were analysed in comparison with literature reports. The study produced a coherent overall interpretation, which strongly supports the reliability of this new...
Tipo: Text Palavras-chave: Gironde Estuary; Bay of Biscay; Pyruvate kinase; Pyruvate kinase; Carbohydrates; Zooplankton; Phytoplankton; Chlorophyll; Inorganic nutrients.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1745.pdf
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Teneur en ADN de la larve de Dicentrarchus labrax : évolution ontogénétique et effet de la privation de nourriture ArchiMer
Bergeron, Jean-pierre; Person, Jeanine.
Sea bass Dicentrarchus labrax larvae were hatched and reared for 34 days in the laboratory to test a recent biochemical index (DNA/C) of larval fish nutritional condition. Variations in DNA/C ratio values were monitored during the whole larval ontogenesis of fed individuals and the effect of starvation was assessed at three developmental stages. Three main periods in the relative DNA content variations were determined in close connection with growth patterns during larval ontogenesis.
Tipo: Text Palavras-chave: Dicentrarchus labrax; DNA/C; Nutritional condition; Starvation; Growth; Biochemical index.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00072/18300/15875.pdf
Registros recuperados: 22
Primeira ... 12 ... Última
 

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