Chouvelon T. auteur aut IRD Strady Emilie auteur aut IRD Harmelin-Vivien M. auteur aut IRD Radakovitch O. auteur aut IRD Brach-Papa C. auteur aut IRD Crochet S. auteur aut IRD Knoery J. auteur aut IRD Rozuel E. auteur aut IRD Thomas B. auteur aut IRD Tronczynski J. auteur aut IRD Chiffoleau J. F. auteur aut IRD text journalArticle eng text/pdf born digital access Trace metal contamination in the European sardine and anchovy food web was investigated in the Gulf of Lions, NW Mediterranean Sea, including seawater and size fractions of plankton. The results highlighted: i) higher and more variable concentrations in the smaller plankton size classes for all metals except cadmium; ii) higher concentrations in anchovy versus sardine for all elements except lead; iii) different patterns of metal bioaccumulation through the food web: cobalt, nickel, copper, silver, lead and zinc displayed continuously decreasing concentrations (with the exception of increased zinc in fish only), while mercury concentrations dropped considerably in larger plankton size classes and rose significantly in fish. Lastly, cadmium concentrations were found to be highest in intermediate plankton size classes, with very low levels in fish. The need to efficiently characterize the biological composition of plankton in order to fully identify its role in the mobilization and transfer of metals was highlighted. specialized Inorganic elements Seawater Size-classed plankton Sardina pilchardus Engraulis encrasicolus Mediterranean Sea MEDITERRANEE LION GOLFE 038 040 036 146 1013-1030 2019 0025-326X https://www.documentation.ird.fr/hor/fdi:010077107 10.1016/j.marpolbul.2019.07.047 0025-326X [F B010077107] https://www.documentation.ird.fr/hor/fdi:010077107 https://www.documentation.ird.fr/intranet/publi/2019/10/010077107.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2019-11-05 2025-02-24 fdi:010077107 fre