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A multibiomarker approach on the Atlantic tomcod (Microgadus tomcod) in the St. Lawrence Estuary ArchiMer
Dupuy, Celie; Couillard, Catherine M.; Laroche, Jean; Nellis, Pierre; Brousseau, Pauline; Fournier, Michel.
A multibiomarker approach was developed on juvenile Atlantic tomcod (Microgadus tomcod) to evaluate the pertinence of this approach for low-cost screening assessment of the environmental quality of various coastal sites within estuaries. Several biometric indices and biomarkers (ethoxyresorufin-O-deethylase (EROD) activity, metallothionein concentration, and immune responses) were investigated on immature and maturing tomcods (a parts per thousand currency sign31 months) collected in four environmentally contrasted sites in the St. Lawrence Estuary (SLE). Simultaneous examination of various age classes provides the opportunity to detect short-term responses in sensitive young-of-the-year fish (e.g., EROD induction) and longer-time effects associated with...
Tipo: Text Palavras-chave: Biometric indexes; EROD; Metallothionein; Immunotoxicity; Pollution; Fish.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00125/23578/21501.pdf
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Responses of the European flounder (Platichthys flesus) to a mixture of PAHs and PCBs in experimental conditions ArchiMer
Dupuy, Celie; Galland, Claire; Devaux, Alain; Bony, Sylvie; Loizeau, Veronique; Danion, Morgane; Pichereau, Vianney; Fournier, Michel; Laroche, Jean.
A multibiomarker approach was developed to evaluate the juvenile European flounder responses to a complex mixture of 9 polycyclic aromatic hydrocarbons (PAHs) and 12 polychlorinated biphenyls (PCBs). Exposure was performed through contaminated food pellets displaying: (1) PAH and PCB levels similar to those detected in the heavily polluted Seine estuary, respectively in sediments and in flatfish and (2) ten times these concentrations. Several biomarkers of the immune system (e.g., lysozyme concentration and gene expression of complement component C3 and TNF-receptor), DNA damage (e.g., Comet assay), energetic metabolism (e.g., activity of cytochrome C oxidase), detoxification process (e.g., cytochrome P450 1A1 expression level: CYP1A1; betaine homocysteine...
Tipo: Text Palavras-chave: Mixture of contaminants; Fish; Biomarker; Immunotoxicity; Detoxification process; DNA damage; PAHs; PCBs.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00188/29914/28374.pdf
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