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Registros recuperados: 6
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Copper levels evolution in Arcachon bay oysters : role of the regulation on antifouling paints ArchiMer
Alzieu, Claude; Barbier, Georges; Sanjuan, Jane.
The ban of tributyltin compounds in antifouling paints induced a strong decrease in the level of tin in Arcachon bay. At the same time, copper inputs have increased tenfold since 1982 owing to the widespread use of paints containing cuprous oxide. In spite of this large input, the statistical analysis of monitoring data (1979-1985) show a relative stability in the copper levels in Arcachon bay oysters.
Tipo: Text Palavras-chave: Cuivre; Huîtres; Bassin d'Arcachon; Peintures antisalissures; Copper; Oysters; Arcachon Bay; Antifouling paints.
Ano: 1987 URL: http://archimer.ifremer.fr/doc/00022/13291/10337.pdf
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Essai de détermination d'une typologie des sédiments côtiers en fonction de l'apparition d'eaux colorées ArchiMer
Arzul, Genevieve; Youenou, A.; Derrien, Annick; Gentien, Patrick; Crassous, M.p.; Lunven, M..
The study of different chemical parameters characterizing the coastal sediment, showed a possible relation between, respectively, high levels in organic matter and total copper, and the "red tide"  phenomenon.
Tipo: Text Palavras-chave: Sédiment côtier; Eaux colorées; Matière organique; Cuivre; Coastal sediment; Red time; Organic matter; Copper.
Ano: 1988 URL: http://archimer.ifremer.fr/doc/00425/53708/54565.pdf
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Incertitudes des méthodes d’évaluation « eaux littorales » : utilisation de modèles linéaires dynamiques pour l’évaluation des incertitudes des paramètres contaminants chimiques dans le biote ArchiMer
Soudant, Dominique; Bouchoucha, Marc; Gouriou, Laure; Menet-nedelec, Florence; Trut, Gilles.
L’incertitude associée à une mesure a pour origine d’une part la variabilité environnementale et d’autre part l’ensemble du processus d’acquisition depuis le prélèvement jusqu’à la saisie de la donnée dans une base. L’estimation de l’ensemble de cette variabilité est un exercice complexe à réaliser dans le cadre d’un plan d’expérience. En revanche, les longues séries temporelles de données présentent la caractéristique d’intégrer toutes les variabilités. L’analyse de ces séries en termes de signal et bruit doit permettre de quantifier l’amplitude des incertitudes. Toutefois, les séries temporelles d’observation présentent un ensemble de caractéristiques les rendant difficiles à analyser. Les modèles linaires dynamiques constituent une approche adaptée à...
Tipo: Text Palavras-chave: Incertitude; Cadmium; Cuivre; CB153; Fluoranthène; Mercure; Plomb; Modèle linaire dynamique; Estuaire de Seine; Bassin d’Arcachon; Méditerranée; ROCCH..
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00660/77172/78551.pdf
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Méthode de dosage du cadmium, du cuivre, du plomb et du zinc dans la chair de poissons ArchiMer
Auger, Dominique.
An analytical technique for cadmium, copper, lead and zinc determination in fish tissue used in monitoring programmes is described. Atomic absorption spectrophotometry on nitric digested samples is performed.
Tipo: Text Palavras-chave: Cadmium; Cuivre; Poisson; Plomb; Zinc; Analyse; Cadmium; Copper; Lead; Zinc; Fish; Determination.
Ano: 1989 URL: https://archimer.ifremer.fr/doc/00489/60059/63343.pdf
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Physiological responses of Macoma balthica to copper pollution in the Baltic ArchiMer
Sokolowski, A; Wolowicz, M; Hummel, H; Bogaards, R.
Physiological and behavioral responses to Cu exposure were measured in the Baltic clam Macoma balthica from the Gulf of Gdansk, southern Baltic Sea. The burrowing activity, mortality rate, glycogen content, condition index and free amino acid (FAA) composition were analysed as indicators of stress in a series of field and laboratory studies. M. balthica exposed to Cu showed clear Cu-concentration related differences in burrowing activity and mortality rate, but no consistent differences in the condition index, glycogen content, and free amino acids. The clams from a less polluted area reacted more strongly and were more sensitive to additional stress as compared to organisms from a more polluted region. The effect of Cu on the ecophysiology of Baltic clams...
Tipo: Text Palavras-chave: Stress; Cuivre; Écophysiologie; Macoma balthica; Mer Baltique; Stress; Copper; Ecophysiology; Macoma balthica; Baltic Sea.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00325/43606/43925.pdf
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Spéciation du cuivre en milieu hydrothermal profond et dans les zones de suintements froids ArchiMer
Aumond, Virginie.
This work presents the copper speciation in the deep ocean and the exchanges existing between different size fractions : particulate, dissolved and colloidal. It focus on the mixing zone between deep sources and seawater. The enhancement of our knowledge and the optimization of instrumentation make possible the development of sampling and analysis strategies accorded with the nature and the accessibility of these extreme environments. A part of this work consisted in the development of effective analysis methods for the quantification of copper and copper’s ligands. Our results showed that physical speciation seems to be essentially controlled by the variations of pH and oxydoreductive caracteristics during the dilution of the hydrothermal fluid by...
Tipo: Text Palavras-chave: Analyse chimique; Spéciation; Hydrothermal; Cuivre; Sulfures; Dorsale Médio-Atlantique; Lucky Strike; Guaymas; Cuivre -- Spéciation; Bouches hydrothermales.
Ano: 2013 URL: https://archimer.ifremer.fr/doc/00692/80379/83500.pdf
Registros recuperados: 6
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