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| Minier, Christophe; Abarnou, Alain; Jaouen Madoulet, Agnes; Le Guellec, Anne-marie; Tutundjian, Renaud; Bocquene, Gilles; Leboulenger, François. |
| Zebra mussel (Dreissena polymorpha) is an invasive species that has proliferated in European and North American rivers and lakes during the last century. In this study, D. polymorpha has been used to provide information on contamination levels and biological effects in the Seine Estuary (France). The bivalves accumulated polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) to a high degree with values reaching 800 ng/g dry weight for PCBs (sum of 20 congeners), and 1,000 ng/g dry weight of PAHs (sum of 14 compounds) in the whole body. These values are among the highest reported of PCBs and, to a lesser extent, of PAHs in other contaminated areas in the world. Toxic equivalent quantities of PCBs and PAHs detected in zebra mussels... |
| Tipo: Text |
Palavras-chave: Biomarkers; Multixenobiotic resistance; Polycyclic aromatic hydrocarbons; Polychlorinated biphenyls; Dreissena polymorpha. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-2130.pdf |
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| Chatel, Annelle; Faucet-marquis, Virginie; Gourlay-france, Catherine; Pfohl-leszkowicz, Annie; Hubert, Francoise. |
| The aim of the present study was to confirm the relevance of studying DNA adduct formation in a field study. In that context, freshwater mussels Dreissena polymorpha, collected in a reference station, were transplanted in different sites with a pollution gradient. After one and two months, mussels were collected and DNA adduct formation was analyzed using the 32P post labelling technique on both gills and digestive glands. In addition, the expression of genes involved in the detoxification system (catalase (CAT), superoxide dismutase (SOD), glutathione S-transferase (GST), HSP70, aryl hydrocarbon receptor (AHR), P glycoprotein (PgP), metallothionein (MT)) was assessed by RT-PCR. DNA adducts were observed at amount comparable to data from literature.... |
| Tipo: Text |
Palavras-chave: Biomarker; Pollution; DNA adducts; Detoxification; Dreissena polymorpha; RT-PCR. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00195/30639/32450.pdf |
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| Lebrun, Jeremie D.; Dufour, Marine; Uher, Emmanuelle; Fabure, Juliette; Mons, Raphael; Charlatchka, Rayna; Gourlay-france, Catherine; Fechner, Lise; Ferrari, Benoit Jd. |
| Dredging generates remobilisation of sediments contaminated by non-degradable compounds such as metals, to which aquatic organisms can be exposed. This study aims at assessing the environmental impact of sediments remobilised in the Rhine River (France) during the dredging of Marckolsheim dam by pumping/dilution in 2013 on metal speciation and organisms' exposure. The monitoring coupling chemical and biological tools was performed 2 years before dredging operation on 2 sampling sites, upstream and downstream from the discharge of pumping/dilution, to acquire data on the natural variability of labile (DGT as passive samplers), dissolved and particulate concentrations of Cd, Co, Cr, Cu, Ni, Mn, Pb and Zn in Rhine during full hydrological cycles. In parallel,... |
| Tipo: Text |
Palavras-chave: Active biomonitoring; Dreissena polymorpha; DGT; Metal bioavailability; Natural variability. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00413/52458/53244.pdf |
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