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	Provedor de dados ArchiMer (1) Autor Lansard, B (1) Massias, D (1) Rabouille, C (1) Palavra-chave Biogeochemistry (1) Biogéochimie (1) Carbon cycle (1) Coastal sediment (1) Cycle du carbone (1) In situ micro-electrodes (1) Micro-électrodes in situ (1) Oxygen (1) Oxygène (1) Sédiment côtier (1) Mais... Tipo do documento Text (1) Ano 2003 (1) País France (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Variability in benthic oxygen fluxes during the winter-spring transition in coastal sediments: an estimation by in situ micro-electrodes and laboratory mini-electrodes ArchiMer Lansard, B; Rabouille, C; Massias, D. Two expeditions were achieved at the winter-spring transition in the Golfe de Fos (Mediterranean Sea) at a site situated at 21 m depth. An in situ autonomous oxygen profiler and laboratory oxygen mini-electrodes were used to measure the oxygen distribution in the sediments and calculate the diffusive oxygen fluxes. Clearer waters during the second expedition promoted a rapid shift from a net heterotrophic environment to a photosynthesis-dominated sediment. The diffusive exchange fluxes of oxygen through the sediment-water interface varied from an average consumption of 5.3 mmol m(-2) d(-1) (February) to a net production of 12 mmol m(-2) d(-1) (March). At both periods, a large spatial heterogeneity was recorded by the different electrodes, with a larger... Tipo: Text Palavras-chave: Oxygène; Micro-électrodes in situ; Biogéochimie; Cycle du carbone; Sédiment côtier; Oxygen; In situ micro-electrodes; Biogeochemistry; Carbon cycle; Coastal sediment. Ano: 2003 URL: http://archimer.ifremer.fr/doc/00322/43272/43003.pdf Registros recuperados: 1 Primeira ... 1 ... Última

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