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	Provedor de dados ArchiMer (3) Autor Theret, Francois (3) Palavra-chave Chalut (2) Adjustment (1) Couplage fluide structure (1) Efforts hydrodynamique (1) Experimentation (1) Expérimentation (1) Filet (1) Hydrodynamic (1) Hydrodynamique (1) Maille (1) Maquette de chalut (1) Modelization (1) Modèle numérique (1) Optimisation (1) Optimization (1) Panneau (1) Réglage (1) Structure (1) Surface réticulée (1) Surface souple (1) Mais... Tipo do documento Text (3) Ano 1994 (1) 1993 (1) 1990 (1) País France (3) Idioma Francês (2) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 26 Primeira ... 1 2 ... Última Étude et modélisation des populations de macrophytes dans la lagune de Thau (Hérault, France) ArchiMer Plus, Martin. The works carried out can be divided in three main lines : design and management of experimental studies on primary production processes, macrophyte spatial distribution study and development of macrophyte and seagrass numerical models. In situ and in vitro experiments have been performed with the aim of studying the processes and the parameters involved in the photosynthesis-respiration system, as well as to establish the main biotic (self-shading effect, physiology of the photosynthesis, carbon, nitrogen and chlorophyll tissu contents) and abiotic (temperature, light and nutrients) factors controlling macrobenthic primary production. A seagrass ecosystem model based on nitrogen and oxygen fluxes has been developped. Model calibration and validation have... Tipo: Text Palavras-chave: Primary production; Light; Nitrogen; Nutrients; Mathematical model; Thau lagoon; Seagrass; Macrophytes; Production primaire; Lumière; Azote; Nutriments; Model mathématique; Thau; Phanérogames; Macrophytes. Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/these-6518.pdf Allocation du carbone et métabolisme azoté chez l'haptophyte Tisochrysis lutea ArchiMer Garnier, Matthieu. The aim of this thesis is to improve knowledge on mechanisms involved in the response to nitrogen limitation and in lipid accumulation in the microalgae haptophyte Tisochrysis lutea. The wild type strain and a lipid accumulating mutant strain were grown under different nitrogen limitation and starvation and analyzed by functional genomics. Four genes of high-affinity nitrate/nitrite transporter (Nrt2) were identified and characterized to reveal the mechanisms involved in mineral absorption in this species. Transcriptomes of both strains were sequenced and proteins affected by nitrogen starvation and differentially expressed between the two strains were identified. We so identified the functions regulated by nitrogen deficiency and potentially involved in... Tipo: Text Palavras-chave: Microalgues; Métabolisme; Azote; Carbone; Lipides; Genomique fonctionelle; Protéomique; Transcriptomique; Microalgae; Metabolism; Nitrogen; Carbon; Lipids; Functional genomics; Proteomics; Transcriptomics. Ano: 2016 URL: http://archimer.ifremer.fr/doc/00353/46378/46000.pdf Voluntary feed intake, nitrogen and phosphorus losses in rainbow trout (Oncorhynchus mykiss) fed increasing dietary levels of soy protein concentrate ArchiMer Medale, Francoise; Boujard, Thierry; Vallee, Frédéric; Blanc, Denise; Mambrini, Muriel; Roem, Arjen; Kaushik, Sadasivam. High energy extruded diets were formulated to contain the same level of protein supplied either by soy protein concentrate (SPC) or fish meal. Three experiments were performed in order to measure voluntary feed intake and feed waste, faecal losses and soluble losses of nitrogen and phosphorus in rainbow trout (average body weight: 100 g). Voluntary feed intake and growth performance of fish fed with demand feeders were not different when diets contained 0, 50 or 75 % SPC instead of fish meal. Total replacement of fish meal by SPC led to a significant decrease in feed intake and resulted in poor growth. This was partly due to methionine deficiency in the SPC based diet. With the addition of crystalline DL-methionine in the diets, an improvement of feed... Tipo: Text Palavras-chave: Digestibilité; Excrétion; Azote; Phosphore; Protéine de soja; Ingestion volontaire; Truite arc-en-ciel; Digestibility; Excretion; Nitrogen; Phosphorus; Soy protein; Voluntary feed intake; Rainbow trout. Ano: 1998 URL: https://archimer.ifremer.fr/doc/1998/publication-871.pdf Retombées atmosphériques en nutriments. Sous-région marine Manche - Mer du Nord. Evaluation initiale DCSMM. ArchiMer Blanck, Aurélie. Tipo: Text Palavras-chave: Manche; Mer du Nord; Retombées atmosphériques; Nutriments; Azote; Evolution. Ano: 2012 URL: https://archimer.ifremer.fr/doc/00328/43871/43445.pdf Etude expérimentale de la fertilité des eaux des milieux conchylicoles : influence de l'excretion des huîtres et des palourdes sur la production des diatomées dominantes ArchiMer Vincendeau, Marie-laure. L'impact de l'excrétion de Mollusques Bivalves cultivés sur la croissance de Diatomées dans les zones conchylicoles est étudié expérimentalement. Les Huîtres et les Palourdes enrichissent les eaux où elles séjournent en ammoniaque, urée, acides aminés et autres substances azotées ainsi qu'en phosphore minéral et organique dissous. En conséquence, la fertilité potentielle des eaux pour trois Diatomées des milieux conchylicoles est améliorée. De plus, les algues bénéficient parfois d'apports complémentaires de vitamines et de métaux de la part des Mollusques. Les Diatomées prélèvent les nitrates simultanément à l'ammoniaque. Elles peuvent de plus utiliser l'azote organique dissouss sous les formes excrétées par les Bivalves. Parmi ces formes, la taurine peut... Tipo: Text Palavras-chave: Mollusques bivalves; Excrétion; Diatomées; Azote; Phosphore; Taurine; Essais biologiques; Indice de fertilité. Ano: 1987 URL: http://archimer.ifremer.fr/doc/00443/55477/57007.pdf Matière en suspension et sédimentation dans la lagune de Thau ArchiMer Pichot, Paul; Deslous-paoli, Jean-marc; Juge, Claude. Thau is a mediterranean lagoon with a large productive stock of molluscs (oysters, mussels) cultivated on suspended tines and colonised by epibionta (ascidia and others invertebrates, algae, etc ... ). This study was developed as part of the PNOC-OXYTHAU.programme. Its aim was to analyze the effects of oyster farrning on water-mass surrounding structures loaded with suspended molluscs and proximal watermass separating these structures. This study concems particulate suspended matter and deposits of particulate organic matter on the bottom after sedimnentation. Biochemical measurements were carried out for nitrogen, carbon,  proteins, lipids and carbohydrates. ln order to estimate sedimentaton, bottom sediment traps were used Tipo: Text Palavras-chave: Méditérranée; Etang de Thau; Matière en suspension; Azote; Carbone; Protites; Lipides; Glucides; Sédimentation; Mediterranean; Lagoon of Thau; Particulate suspended mattter; Nitrogen; Carbon; Proteins; Lipids; Carbohydraes; Sedimentation. Ano: 1996 URL: http://archimer.ifremer.fr/doc/00425/53662/54501.pdf Registros recuperados: 26 Primeira ... 1 2 ... Última

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