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	Provedor de dados ArchiMer (2) Autor Denis, Lionel (2) Alliot, Elisabeth (1) Charrier, Gregory (1) Dauvin, Jean-claude (1) Desroy, Nicolas (1) Grenz, Christian (1) Janson, Anne-laure (1) Lesourd, Sandric (1) Rodier, Martine (1) Mais... Palavra-chave Temporal variability (2) Abra alba community (1) Anthropogenic impacts (1) Azote inorganique dissous (1) Bentho pelagic coupling (1) Cycle de l’azote (1) Dissolved inorganic nitrogen (1) Flux à l’interface eau–sédiment (1) Méditerranée nord occidentale (1) NW Mediterranean (1) Nitrogen cycling (1) Port 2000 (1) Sediment (1) Sediment-water flux (1) Variabilité temporelle (1) Mais... Tipo do documento Text (2) Ano 2007 (1) 2001 (1) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Temporal variability in dissolved inorganic nitrogen fluxes at the sediment-water interface and related annual budget on a continental shelf (NW Mediterranean) ArchiMer Denis, Lionel; Grenz, Christian; Alliot, Elisabeth; Rodier, Martine. Sediment-water dissolved inorganic nitrogen fluxes were measured monthly between November 1997 and January 1999 at two sites on the continental shelf in the Gulf of Lions. Exchanges of ammonium, nitrate and nitrite were measured using whole core incubations performed in the laboratory at in situ temperature and in the dark;. Stations were located on the shelf and near the shelf break. Nitrate release represented the major part of total dissolved inorganic nitrogen fluxes (52-98%). At station Soft, nitrate flux doubled from winter-early spring to August (4 to 10 mu mol m(-2) h(-1)). At station R, a large increase (2 to 14 mu mol m(-2) h(-1)) was recorded between December 1997 and January 1998, after which flux tended to decrease. Ammonium flux was generally... Tipo: Text Palavras-chave: Flux à l’interface eau–sédiment; Azote inorganique dissous; Variabilité temporelle; Cycle de l’azote; Méditerranée nord occidentale; Sediment-water flux; Dissolved inorganic nitrogen; Temporal variability; Nitrogen cycling; NW Mediterranean. Ano: 2001 URL: http://archimer.ifremer.fr/doc/00323/43371/42839.pdf The intra-annual variability of soft-bottom macrobenthos abundance patterns in the North Channel of the Seine estuary ArchiMer Desroy, Nicolas; Janson, Anne-laure; Denis, Lionel; Charrier, Gregory; Lesourd, Sandric; Dauvin, Jean-claude. Temporal and spatial variability of the Abra alba–Pectinaria koreni and Macoma balthica communities was examined in the northern part of the Seine estuary (North Channel) over different space and time scales in order to assess the role that the hydrologic regime and/or anthropogenic influences play in defining benthic communities over time. Sediment in the North Channel displayed strong spatial and temporal variability, sustained by intense sediment transport episodes. Total macrobenthic abundances ranged widely on the course of the year and there was no evidence of a seasonal signal for the density fluctuations, whatever the spatial scale considered. The bio-sedimentary dynamics can be divided into two periods: the first corresponds to the high flow rate... Tipo: Text Palavras-chave: Port 2000; Anthropogenic impacts; Abra alba community; Sediment; Bentho pelagic coupling; Temporal variability. Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2613.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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