FN Archimer Export Format PT J TI High levels of halogenated natural products in large pelagic fish from the Western Indian Ocean BT AF Wu, Qiong Munschy, Catherine Aminot, Yann Bodin, Nathalie Vetter, Walter AS 1:1;2:2;3:2;4:3,4;5:1; FF 1:;2:PDG-RBE-BE-LBCO;3:PDG-RBE-BE-LBCO;4:;5:; C1 Institute of Food Chemistry (170b), University of Hohenheim, Garbenstraße 28, D-70599, Stuttgart, Germany Laboratory of Biogeochemistry of Organic Contaminants, IFREMER (French Research Institute for Exploitation of the Sea), Rue de l’île d’Yeu, BP 21105, 44311, Nantes Cedex 3, France Fishing Port, SFA (Seychelles Fishing Authority), Victoria, Mahé, Seychelles Fishing Port, IRD (French Research Institute for Sustainable Development), Victoria, Mahé, Seychelles C2 UNIV HOHENHEIM, GERMANY IFREMER, FRANCE IRD, SEYCHELLES IRD, SEYCHELLES SI NANTES SE PDG-RBE-BE-LBCO IN WOS Ifremer UPR copubli-france copubli-p187 copubli-europe copubli-int-hors-europe IF 5.19 TC 7 UR https://archimer.ifremer.fr/doc/00700/81191/85424.pdf https://archimer.ifremer.fr/doc/00700/81191/85425.pdf LA English DT Article DE ;Seychelles;Marine predator;Swordfish;Tropical tuna;Polyhalogenated compound;DDT;PCB;HNP AB Concentrations, profiles and muscle-liver distribution of halogenated natural products (HNPs) and anthropogenic persistent organic pollutants (POPs) were investigated in five large pelagic fish species and one smaller planktivore fish species from the Western Indian Ocean. Analysis of swordfish muscle from the Seychelles revealed the predominance of HNPs, with the highest concentrations found for 2′-methoxy-2,3′,4,5′- tetraBDE (2′-MeO-BDE 68 or BC-2), 6-methoxy-2,2′,4,4′- tetraBDE (6-MeO-BDE 47 or BC-3) and 2,3,3′,4,4′,5,5′-heptachloro-1′-methyl-1,2′-bipyrrole (Q1), along with varied contributions of further HNPs. The mean concentration of ∑HNPs (330 ng/g lw) was one or two orders of magnitude higher than ∑DDTs (60 ng/g lw) and ∑PCBs (6.8 ng/g lw). HNPs (BC-2, BC-3 and Q1) were also predominant in individual samples of three tropical tuna species from the Seychelles and from other regions of the Western Indian Ocean (Mozambique Channel, off Somalia and Chagos Archipelago). Non-targeted gas chromatography coupled with electron capture negative ion mass spectrometry operated in the selected ion monitoring mode (GC/ECNI-MS-SIM) analysis of one swordfish sample indicated low abundance of rarely reported HNPs (three hexachloro-1′-methyl-1,2′-bipyrrole (Cl6-MBP) isomers and pentabromo-1,1′-dimethyl-2,2′-bipyrroles (Br5-DBP)) but no further abundant unscreened polyhalogenated compounds. PY 2021 PD OCT SO Environmental Science And Pollution Research SN 0944-1344 PU Springer Science and Business Media LLC VL 28 IS 39 UT 000661413600008 BP 55252 EP 55264 DI 10.1007/s11356-021-14738-0 ID 81191 ER EF