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author = "Geffard O"

Found 13 documents, displaying page 1 of 2

Bioaccumulation of metals in sediment elutriates and their effects on growth, condition index, and metallothionein contents in oyster larvae

Description : The bioavailability of Cd, Cu, Zn, and Pb from two metal-contaminated sediments (Bidassoa and Dunkerque) was studied using Crassostrea gigas larvae exposed to sediment elutriates. The metal contents within the sediments, the larvae and larval growth, the condition index, and the induction of metallo...
Repository : Archimer, Archive Institutionnelle de l'Ifremer
Language(s) : English

Additive vs non-additive genetic components in lethal cadmium tolerance of Gammarus (Crustacea): Novel light on the assessment of the potential for adaptation to contamination

Description : Questioning the likelihood that populations adapt to contamination is critical for ecotoxicological risk assessment. The appraisal of genetic variance in chemical sensitivities within populations is currently used to evaluate a priori this evolutionary potential. Nevertheless, conclusions from this ...
Repository : CemOA - Cemagref Open Access Publications
Language(s) : English

Les expérimentations in situ : principes et perspectives

Description : / Identifier l'origine d'une perturbation, discriminer un stress physique ou chimique, et quantifier les liens de cause à effet des pollutions supposent de recueillir des données nécessaires à l'évaluation de la qualité des eaux. À l'heure actuelle, la majorité des données est issue de tests de lab...
Repository : CemOA - Cemagref Open Access Publications
Language(s) : French

Additive vs non-additive genetic components in lethal cadmium tolerance of Gammarus (Crustacea): Novel light on the assessment of the potential for adaptation to contamination

Description : Questioning the likelihood that populations adapt to contamination is critical for ecotoxicological risk assessment. The appraisal of genetic variance in chemical sensitivities within populations is currently used to evaluate a priori this evolutionary potential. Nevertheless, conclusions from this ...
Repository : HAL - Hyper Article on Line
Language(s) : English

Les expérimentations in situ : principes et perspectives

Description : Identifier l'origine d'une perturbation, discriminer un stress physique ou chimique, et quantifier les liens de cause à effet des pollutions supposent de recueillir des données nécessaires à l'évaluation de la qualité des eaux. À l'heure actuelle, la majorité des données est issue de tests de labora...
Repository : HAL - Hyper Article on Line
Language(s) : French

Cholinesterase activities as potential biomarkers: characterization in two freshwater snails, Potamopyrgus antipodarum (Mollusca, Hydrobiidae, Smith 1889) and Valvata piscinalis (Mollusca, Valvatidae, Müller 1774)

Description : Anticholinesterase insecticides constitute a major portion of modern synthetic pesticides and the assessment of cholinesterase (ChE) inhibition is widely used as a specific biomarker for evaluating the exposure of non-target organisms to these pollutants. However, most studies on this biomarker were...
Repository : CemOA - Cemagref Open Access Publications
Language(s) : English

Cholinesterase activities as potential biomarkers: characterization in two freshwater snails, Potamopyrgus antipodarum (Mollusca, Hydrobiidae, Smith 1889) and Valvata piscinalis (Mollusca, Valvatidae, Müller 1774)

Description : Anticholinesterase insecticides constitute a major portion of modern synthetic pesticides and the assessment of cholinesterase (ChE) inhibition is widely used as a specific biomarker for evaluating the exposure of non-target organisms to these pollutants. However, most studies on this biomarker were...
Repository : HAL - Hyper Article on Line
Language(s) : English

Bioaccumulation of metals in sediment elutriates and their effects on growth, condition index, and metallothionein contents in oyster larvae

Description : The bioavailability of Cd, Cu, Zn and Pb from two metal-contaminated sediments (Bidassoa and Dunkerque) was studied using Crassostrea gigas larvae exposed to sediment elutriates. The metal contents within the sediments, the larvae and larval growth, the condition index, and the induction of metallot...
Repository : CemOA - Cemagref Open Access Publications
Language(s) : English

Bioaccumulation of metals in sediment elutriates and their effects on growth, condition index, and metallothionein contents in oyster larvae

Description : The bioavailability of Cd, Cu, Zn and Pb from two metal-contaminated sediments (Bidassoa and Dunkerque) was studied using Crassostrea gigas larvae exposed to sediment elutriates. The metal contents within the sediments, the larvae and larval growth, the condition index, and the induction of metallot...
Repository : HAL - Hyper Article on Line
Language(s) : English

Coupling geochemical and biological approaches to assess the availability of cadmium in freshwater sediment

Description : Sediments are considered as a sink for metals, and the assessment of metal bioavailability for benthic organisms represents a great challenge. Diffusive Gradient in Thin films (DGT), developed to measure labile metals in aquatic media, have more recently been applied to sediment. Nevertheless, few s...
Repository : HAL - Hyper Article on Line
Language(s) : English

Found 13 documents, displaying page 1 of 2