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	Provedor de dados ArchiMer (3) Autor Bd De Souza, Mj (1) Becquevort, S (1) Chandramohan, D (1) Delille, D (1) Goosse, H (1) Lancelot, C (1) Laruelle, G (1) Loka Bharathi, Pa (1) Nair, S (1) Pasquer, B (1) Schoemann, V (1) Mais... Palavra-chave Antarctic ocean (3) Océan Antarctique (2) Air-sea CO2 fluxes (1) Bacteria (1) Bacterial biomass (1) Bactérie (1) Biomasse bactérienne (1) Coccolithophorids (1) Diatoms (1) Distribution verticale (1) Ecological modelling (1) Global ocean (1) Indian side (1) Interannual variability (1) Iron (1) North Atlantic (1) Phaeocystis spp. (1) Pico/nanophytoplankton (1) Seasonal changes (1) Secteur indien (1) Mais... Tipo do documento Text (3) Ano 2005 (1) 2003 (1) 2001 (1) País France (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Linking ocean biogeochemical cycles and ecosystem structure and function: results of the complex SWAMCO-4 model ArchiMer Pasquer, B; Laruelle, G; Becquevort, S; Schoemann, V; Goosse, H; Lancelot, C. We present results obtained with SWAMCO-4, a complex model of the marine planktonic system calculating C, N, P, Si, Fe cycling within the upper ocean, the export production and the exchange of CO2 between the ocean and atmosphere. The model, constrained by physical, chemical and biological (grazing, lysis) controls, explicitly details the dynamics of four relevant phytoplankton functional groups with respect to C, N, P, Si, Fe cycling and climate change. Those are diatoms, pico/nano phytoplankton, coccolithophorids, and Phaeocystis spp. whose growth regulation by light, temperature and nutrients has been obtained based on a comprehensive analysis of literature reviews on these taxonomic groups. The performance of SWAMCO-4 is first evaluated in a 1D... Tipo: Text Palavras-chave: Ecological modelling; Diatoms; Pico/nanophytoplankton; Coccolithophorids; Phaeocystis spp.; Iron; Air-sea CO2 fluxes; Global ocean; Antarctic ocean; North Atlantic. Ano: 2005 URL: https://archimer.ifremer.fr/doc/00232/34302/32677.pdf Seasonal and inter-annual variability of bacterioplankton biomass at station Kerfix, off Kerguelen Islands, Antarctica ArchiMer Delille, D. Between January 1992 and March 1995, the research project Kerfix undertook the first regular non-coastal multiyear acquisition of parameters related to the carbon cycle in the Southern Ocean at a time series station located at 50degrees40'S-68degrees25'E, 110 km southwest of the Kerguelen Islands. I present here a general overview of the bacteriological data collected during this survey. Bacterioplankton biomass at Kerfix station was always significantly lower than in the direct vicinity of the Kerguelen Islands. Bacterial abundance decreased from surface to deepest layers (from 10(6) cells ml(-1) in surface layer to 5.0 x 10(4) cells ml(-1) at 1500 m). In contrast, mean cell volume (0.1 mum(3)) and proportion of free-living bacteria (80%) were relatively... Tipo: Text Palavras-chave: Océan Antarctique; Biomasse bactérienne; Distribution verticale; Variations saisonnières; Variabilité interannuelle; Antarctic ocean; Bacterial biomass; Vertical distribution; Seasonal changes; Interannual variability. Ano: 2003 URL: http://archimer.ifremer.fr/doc/00321/43268/42999.pdf Assessment of viability in the bacterial standing stock of the Antarctic sea from the Indian side ArchiMer Loka Bharathi, Pa; Nair, S; Bd De Souza, Mj; Chandramohan, D. During the austral summer, we examined the bacterial population along the cruise track extending from 70degrees S and 18degrees E to 30degrees S and 35degrees E. During the cruise, three distinct fractions of the bacterioplankton viz. total count, total direct viable and retrievable counts were simultaneously enumerated in these waters. In the stations south of the convergent region designated as section I the population ranged within 10(8-9) L-1 whereas in the north of the region designated as section 11 they were one order higher and ranged from 10(9-10) L-1. The percentage of viability in the region was high corresponding to the generally high chlorophyll and primary productivity encountered in the eastern Aghulas bank. The study substantiates the... Tipo: Text Palavras-chave: Bactérie; Viabilité; Océan Antarctique; Secteur indien; Bacteria; Viability; Antarctic ocean; Indian side. Ano: 2001 URL: http://archimer.ifremer.fr/doc/00322/43334/42893.pdf Registros recuperados: 3 Primeira ... 1 ... Última

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