title: Variability of PCB burden in 5 fish and sharks species of the French Mediterranean continental slope.
abstract: Despite being generally located far from contamination sources, deep marine ecosystems are impacted by chemicals like PCB. The PCB contamination in five fish and shark species collected in the continental slope of the Gulf of Lions (NW Mediterranean Sea) was measured, with a special focus on intra- and interspecific variability and on the driving factors. Significant differences occurred between species. Higher values were measured in Scyliorhinus canicula, Galeus melastomus and Helicolenus dactylopterus and lower values in Phycis blennoides and Lepidorhombus boscii. These differences might be explained by specific abilities to accumulate and eliminate contaminant, mostly through cytochrome P450 pathway. Interindividual variation was also high and no correlation was observed between contamination and length, age or trophic level. Despite its major importance, actual bioaccumulation of PCB in deep fish is not as documented as in other marine ecosystems, calling for a better assessment of the factors driving individual bioaccumulation mechanisms and originating high variability in PCB contamination.
authors.affiliation: Ifremer, Laboratoire Environnement Ressources Provence Azur Corse, Centre de Méditerranée, CS 20330, F-83 507 La Seyne sur Mer, France; Ifremer, Channel and North Sea Fisheries Research Unit, Centre Manche - Mer du Nord, BP 669, F-62 321 Boulogne sur Mer, France. Electronic address: pierre.cresson@ifremer.fr.
authors.forename: Pierre
authors.initials: P
authors.lastname: Cresson
authors.affiliation: Ifremer, Laboratoire Environnement Ressources Provence Azur Corse, Centre de Méditerranée, CS 20330, F-83 507 La Seyne sur Mer, France.
authors.forename: Marie Claire
authors.initials: MC
authors.lastname: Fabri
authors.affiliation: Ifremer, Laboratoire Environnement Ressources Provence Azur Corse, Centre de Méditerranée, CS 20330, F-83 507 La Seyne sur Mer, France.
authors.forename: Françoise Marco
authors.initials: FM
authors.lastname: Miralles
authors.affiliation: Ifremer, Channel and North Sea Fisheries Research Unit, Centre Manche - Mer du Nord, BP 669, F-62 321 Boulogne sur Mer, France.
authors.forename: Jean-Louis
authors.initials: JL
authors.lastname: Dufour
authors.affiliation: Ifremer, Channel and North Sea Fisheries Research Unit, Centre Manche - Mer du Nord, BP 669, F-62 321 Boulogne sur Mer, France.
authors.forename: Romain
authors.initials: R
authors.lastname: Elleboode
authors.affiliation: Ifremer, Channel and North Sea Fisheries Research Unit, Centre Manche - Mer du Nord, BP 669, F-62 321 Boulogne sur Mer, France.
authors.forename: Karine
authors.initials: K
authors.lastname: Sevin
authors.affiliation: Ifremer, Channel and North Sea Fisheries Research Unit, Centre Manche - Mer du Nord, BP 669, F-62 321 Boulogne sur Mer, France.
authors.forename: Kelig
authors.initials: K
authors.lastname: Mahé
authors.affiliation: Ifremer, Laboratoire Environnement Ressources Provence Azur Corse, Centre de Méditerranée, CS 20330, F-83 507 La Seyne sur Mer, France.
authors.forename: Marc
authors.initials: M
authors.lastname: Bouchoucha
mesh_terms: D000818:Animals; D001822:Body Burden; D017753:Ecosystem; D004781:Environmental Exposure; D004784:Environmental Monitoring; D005399:Fishes; D005602:France / Q000453:epidemiology; D048388:Gadiformes / Q000378:metabolism; D008522:Mediterranean Sea / Q000453:epidemiology; D011078:Polychlorinated Biphenyls / Q000032:analysis / Q000378:metabolism*; D017747:Seafood; D012754:Sharks; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism*
chemical_list: D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls
keywords: Bioaccumulation; Continental slope; Gulf of Lions; PCB