title: Differential biomagnification of PCB, PBDE, Hg and Radiocesium in the food web of the European hake from the NW Mediterranean.
abstract: Consumption of marine organisms represents one of the main exposure sources of contaminants for human populations. To obtain a global view of the contamination in commercial fish in the NW Mediterranean Sea, we analysed four types of priority contaminants (PCBs, PBDEs, Hg and (137)Cs) in the European hake, Merluccius merluccius, from the Gulf of Lions in relation with organism's trophic level (δ(15)N). All contaminants presented a significant increase in concentration in hake muscle with trophic level. However, obvious differences between contaminants were evidenced. Biomagnification factors (BMF and FWMF) along the hake food web were higher for Hg and CB-153 than for BDE-47 and (137)Cs, and increase in contaminant concentration with trophic level occurred at different rates depending on contaminants. Such differences of biomagnification patterns can be related to physico-chemical properties of the different contaminants.
authors.affiliation: Aix-Marseille University, Mediterranean Institute of Oceanography (MIO), CNRS/INSU UMR 7294, 13288 Marseille, Cedex 09, France. mireille.harmelin@univ-amu.fr
authors.forename: Mireille
authors.initials: M
authors.lastname: Harmelin-Vivien
authors.forename: Xavier
authors.initials: X
authors.lastname: Bodiguel
authors.forename: Sabine
authors.initials: S
authors.lastname: Charmasson
authors.forename: Véronique
authors.initials: V
authors.lastname: Loizeau
authors.forename: Capucine
authors.initials: C
authors.lastname: Mellon-Duval
authors.forename: Jacek
authors.initials: J
authors.lastname: Tronczyński
authors.forename: Daniel
authors.initials: D
authors.lastname: Cossa
mesh_terms: D000818:Animals; D059001:Aquatic Organisms / Q000378:metabolism; D002588:Cesium Radioisotopes / Q000032:analysis / Q000378:metabolism*; D005260:Female; D020387:Food Chain; D048388:Gadiformes / Q000378:metabolism*; D055768:Halogenated Diphenyl Ethers / Q000032:analysis / Q000378:metabolism*; D008297:Male; D008522:Mediterranean Sea; D008628:Mercury / Q000032:analysis / Q000378:metabolism*; D011078:Polychlorinated Biphenyls / Q000032:analysis / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism*
chemical_list: D002588:Cesium Radioisotopes; D055768:Halogenated Diphenyl Ethers; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls; D008628:Mercury