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	Provedor de dados ArchiMer (4) Autor Romeo, Michèle (4) Quiniou, Francoise (3) Damiens, Gautier (2) Gnassia Barelli, Mauricette (2) His, Edouard (2) Budzinski, H (1) Cossa, Daniel (1) Damiens, G (1) Elbaz-poulichet, Françoise (1) Geffard, A (1) Gnassia Barelli, M (1) Gnassia-barelli, Mauricette (1) Mouneyrac, C (1) Mouneyrac, Catherine (1) Mais... Palavra-chave Crassostrea gigas larvae (2) Abiotic factors (1) Active bio monitoring (1) Arcachon bay (1) Bidassoa estuary (1) Biogeochemistry (1) Biogeochimie (1) Biomarker (1) Biomarkers (1) Cadmium (1) Carbofuran (1) Contamination (1) Copper (1) Crassostrea gigas (1) Ecotoxicologie (1) Ecotoxicology (1) Lead (1) Malathion (1) Metallothionein (1) Mollusc larvae (1) Mais... Tipo do documento Text (4) Ano 2007 (1) 2006 (1) 2004 (1) 1993 (1) País France (4) Idioma Inglês (3) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Marine water quality assessment using transplanted oyster larvae ArchiMer Quiniou, Francoise; Damiens, G; Gnassia Barelli, M; Geffard, A; Mouneyrac, C; Budzinski, H; Romeo, Michèle. Active bio-monitoring in terms of biornarkers was attempted using Crassostrea gigas larvae produced in the laboratory and transplanted using special containers to two sites at the entrance (A) and inner part (P) of the harbour of Arcachon (French Atlantic Coast). The larvae were kept in the medium for 48 h. Their physiological status and their biomarker levels : acetylcholinesterase AChE, catalase CAT and glutathione S-transferase GST activities were determined together with metallothionein Wand Thiobarbituric Acid Reactive Substances TBARS concentrations. Copper and PAH (polycyclic aromatic hydrocarbon) concentrations were determined in the exposed larvae and in the sediments collected under the containers. Cadmium, lead and zinc could be also analyzed in... Tipo: Text Palavras-chave: PAHs; Trace metals; Biomarkers; Active bio monitoring; Crassostrea gigas larvae. Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2269.pdf Le plomb en milieu marin. Biogeochimie et ecotoxicologie ArchiMer Cossa, Daniel; Elbaz-poulichet, Françoise; Gnassia-barelli, Mauricette; Romeo, Michèle. This report synthesises the knowledge on the biogeochemical cycle, bioconcentration processes and ecotoxicity of lead in the marine environment. Man induced changes on the lead cycle, especially along the French coasts are reviewed. Concentration levels, mechanisms and fluxes between geochemical reservoirs are assessed. Emphasis is given on sublethal effects and toxicity mechanisms. Quality standards used in European Community countries are listed. Conclusions and recommendations for environmental management and research are given. Tipo: Text Palavras-chave: Ecotoxicology; Contamination; Biogeochemistry; Lead; Ecotoxicologie; Contamination; Biogeochimie; Plomb. Ano: 1993 URL: http://archimer.ifremer.fr/doc/1993/rapport-1449.pdf Evaluation of biomarkers in oyster larvae in natural and polluted conditions ArchiMer Damiens, Gautier; His, Edouard; Gnassia Barelli, Mauricette; Quiniou, Francoise; Romeo, Michèle. Crassostrea gigas D-shaped larvae were subjected to different conditions of temperature and salinity for 24 h and four biomarkers (acetylcholinesterase (AChE) activity, thiobarbituric acid reactive substances (TBARS) levels, glutathione S-transferase (GST) and catalase (CAT) activities) were measured. AChE activity decreased when salinity increased from 25 to 30 and 35 psu at 20 and 25 degreesC. Temperature did not seem to have an influence on AChE activity. TBARS levels increased as a function of salinity when the temperature was maintained at 20 degreesC, whereas at 25 degreesC no effect of salinity could be observed. Variations in GST and CAT activities were not significant with salinity and temperature except that catalase activity was higher at 25... Tipo: Text Palavras-chave: Malathion; Carbofuran; Abiotic factors; Crassostrea gigas; Mollusc larvae; Biomarker. Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/publication-686.pdf Metal bioaccumulation and metallothionein concentrations in larvae of Crassostrea gigas ArchiMer Damiens, Gautier; Mouneyrac, Catherine; Quiniou, Francoise; His, Edouard; Gnassia Barelli, Mauricette; Romeo, Michèle. Larval stages of bivalve molluscs are highly sensitive to pollutants. Oysters from a hatchery from Normandy (English Channel) were induced to spawn, and fertilized eggs were exposed to copper or cadmium for 24 h. Metal accumulation (from 0.125 to 5 mu g Cu L-1 and from 25 to 200 mu g Cd L-1) and MT concentrations were measured in larvae. Compared to controls, larvae accumulated copper and cadmium with an increase in MT concentrations particularly with cadmium (i.e. 130.96 ng Cu (mg protein)(-1) and 12.69 mu g MT (mg protein)(-1) at 1 mu g Cu L-1 versus 23.19 ng Cu (mg protein)(-1) and 8.92 mu g MT (mg protein)(-1) in control larvae; 334.3 ng Cd (mg protein)(-1) and 11.70 mu g MT (mg protein)(-1) at 200 mu g Cd L-1 versus 0.87 ng Cd (mg protein)(-1) and... Tipo: Text Palavras-chave: Bidassoa estuary; Arcachon bay; Metallothionein; Copper; Cadmium; Crassostrea gigas larvae. Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1229.pdf Registros recuperados: 4 Primeira ... 1 ... Última

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