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	Provedor de dados ArchiMer (2) Autor Buscail, R (1) Heussner, S (1) Khripounoff, Alexis (1) Rowe, Gilbert T (1) Schrimm, M (1) Palavra-chave Flux particulaire (2) Atlantique tropical (1) Bilan d'énergie (1) Biochemitry of particles and sediments (1) Biochimie des particules et des sédiments (1) Carbon export (1) Carbonate (1) Carbone organique (1) Coral reefs (1) Deep-sea (1) Energy budget (1) Exportation de carbone (1) Milieu abyssal (1) Organic carbon (1) Particle flux (1) Particles flux (1) Récif corallien (1) Tropical atlantic (1) Mais... Tipo do documento Text (2) Ano 2002 (1) 1985 (1) País France (2) Idioma Francês (1) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Les apports organiques et leur transformation en milieu abyssal à l'interface eau-sédiment dans l'Océan Atlantique tropical ArchiMer Khripounoff, Alexis; Rowe, Gilbert T. Five particle traps were deployed at depths of 4 400 to 4 900 rn at two stations on the Demerara abyssal plain and one station on the Cape Verde abyssal plain (tropical Atlantic). At the same time, an intensive sampling of superficial sediments was carried out using a 0,25 m2 box corer. The total particle flux varied from 372 to 87,7 mg dry weightfm2/day. The average concentration of organic carbon was 40 mg/g of material collected. ln the surface sediment this was only 4 mg/g. A direct relationship existed between the intensity of the flux of organic matter and the richness of the organic matter of the deposited sediment. According to our calculations, more than 90% of the organic matter arriving at the bottom is consumed by the abyssal benthos and only... Tipo: Text Palavras-chave: Milieu abyssal; Flux particulaire; Bilan d'énergie; Biochimie des particules et des sédiments; Atlantique tropical; Deep-sea; Particles flux; Tropical atlantic; Energy budget; Biochemitry of particles and sediments. Ano: 1985 URL: http://archimer.ifremer.fr/doc/00112/22318/19991.pdf Seasonal variations of downward particle fluxes in front of a reef pass (Moorea Island, French Polynesia) ArchiMer Schrimm, M; Heussner, S; Buscail, R. Downward particle fluxes off the Taotoi Pass, a typical Polynesian lagoon pass, have been measured over an annual cycle by means of an array of three mooring lines deployed at 40 m depth on the external sandy plain seawards of the Tiahura reef. Each line was equipped with two hand-operated sediment traps located 1.5 and 10 m above the bottom. During the 1-year survey, the traps were deployed for seven periods of 2-3 weeks. One line equipped with an automated trap was further deployed at 400 m depth on the deep fore-reef slope to collect deep settling particles over two consecutive 6-month periods. For all periods investigated, fluxes on the external plain were highest in front of the pass, and decreased by half on either side (up- and downstream with... Tipo: Text Palavras-chave: Flux particulaire; Exportation de carbone; Récif corallien; Carbone organique; Carbonate; Particle flux; Carbon export; Coral reefs; Organic carbon; Carbonate. Ano: 2002 URL: http://archimer.ifremer.fr/doc/00322/43320/42934.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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