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	Provedor de dados ArchiMer (3) Autor Bel Hassen, Malika (3) Le Gall, Pierre (1) Le Gall, Solange (1) Prou, Jean (1) Palavra-chave Aquaculture (1) Cartographie (1) Dissolved matter (1) Export (1) Exportation (1) Fier d'Ars Bay (1) Fiers d'Ars (1) Food sources (1) Geographic Information Systems (1) Halophytes (1) Import (1) Importation (1) Land use (1) Light (1) Lumière (1) Macrophystes (1) Matière dissoute (1) Matière organique (1) Matière particulaire (1) Micorphytobenthos (1) Mais... Tipo do documento Text (3) Ano 2000 (2) 1997 (1) País France (3) Idioma Francês (2) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Fonctionnement des marais maritimes atlantiques: échanges d'énergie et effets des flux aquacoles diffus ArchiMer Bel Hassen, Malika. French estuaries, from the Atlantic coast to the English channel, have been characterized by a poor phytoplankton biomass. The turbidity has always been considered as the limiting factor for phytoplankton. Estuarine ecosystems are situated at the boundary between the land and the sea. Consequently, they are subject to an enrichment by nutrient loadings from upland ecosystems. Although it has been demonstrated that a part of the nutrient loadings support an important benthic production. The part, which escapes to the estuarine benthic and planktonic food web and is exported to adjacent estuarine ecosystems, still remains undetermined. Quantifying the nu trient and particulate matter exchange between a macrotidal Bay, the Fier d'Ars, and the adjacent ocean... Tipo: Text Palavras-chave: Aquaculture; Exportation; Matière dissoute; Fiers d'Ars; Systèmes d'Information Géographique; Importation; Usages; Lumière; Micorphytobenthos; Modélisation; Nutriments; Matière organique; Matière particulaire; Phytoplancton; Sédimentation; Aquaculture; Export; Dissolved matter; Fier d'Ars Bay; Geographic Information Systems; Import; Land use; Light; Microphytobenthos; Modelling; Nutrients; Organic matter; Particulate matter; Phytoplankton; Sedimentation. Ano: 2000 URL: http://archimer.ifremer.fr/doc/00450/56185/57738.pdf Ingestion of a bacterivorous ciliate by the oyster Crassostrea gigas: Protozoa as a trophic link between picoplankton and benthic suspension-feeders ArchiMer Le Gall, Solange; Bel Hassen, Malika; Le Gall, Pierre. The linked concepts of 'microbial loop' and 'protozoan trophic link' have been very well documented in filter-feeding microzooplankton such as copepods, but have not been applied to energy transfer to benthic suspension-feeding macrofauna, with the exception of the recent demonstration of heterotrophic flagellate assimilation by mussels. The oyster Crassostrea gigas obtains energy resources by filtering microalgae (similar to 5 to 100 mu m). However, in turbid estuaries, light-limited phytoplanktonic production cannot entirely account for oyster energy requirements. Conversely, picoplankters (<2 mu m), which are main effecters of coastal energy flow and matter cycling, are not efficiently retained by oyster filtration. Ciliate protozoal as both... Tipo: Text Palavras-chave: Oyster; Food sources; Picoplankton; Protozoa; Trophic link. Ano: 1997 URL: http://archimer.ifremer.fr/doc/00337/44788/44482.pdf Programme Expérimental de Réhabilitation des Fossés à Poissons (1997-2000) ArchiMer Bel Hassen, Malika; Prou, Jean. Cette étude s'inscrit dans le cadre du programme expérimental de réhabilitation des fossés à poisson initié au CREAA (1997-2000). Ce programme répond à une demande régionale pour la valorisation des fossés à poissons. Cet écosystème fait partie du patrimoine régional et marque surtout son identité culturelle, une volonté locale a été manifestée pour sa conservation et valorisation. Cependant l'aménagement de ces structures s'avère très coûteux, le grossissement de poissons, essentiellement l'anguille, a été prévu afin de justifier les frais d'aménagement. Par ailleurs, l'élevage extensif de poisson s'accompagne de la pratique d'autres activités telle que l'agriculture ou l'élevage. La cohabitation de ces différents types d' activités peut déstabiliser le... Tipo: Text Palavras-chave: Cartographie; Paramètre physico-chimique; Paramètres hydrologiques; Macrophystes; Halophytes; Taxonomie; Répartition géographique. Ano: 2000 URL: http://archimer.ifremer.fr/doc/00086/19767/17409.pdf Registros recuperados: 3 Primeira ... 1 ... Última

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