FN Archimer Export Format PT J TI Long-term dietary-exposure to non-coplanar PCBs induces behavioral disruptions in adult zebrafish and their offspring BT AF PEAN, Samuel DAOUK, Tarek VIGNET, Caroline LYPHOUT, Laura LEGUAY, Didier LOIZEAU, Veronique BEGOUT, Marie-Laure COUSIN, Xavier AS 1:1;2:2;3:2;4:1;5:1;6:3;7:1;8:2,4; FF 1:;2:;3:PDG-RBE-BE;4:PDG-RBE-HGS-LRHLR;5:PDG-RBE-HGS-LRHLR;6:PDG-RBE-BE-LBCO;7:PDG-RBE-HGS-LRHLR;8:; C1 IFREMER, Lab Ressources Halieut, F-17137 Lhoumeau, France. IFREMER, Lab Ecotoxicol, F-17137 Lhoumeau, France. IFREMER, Ctr Brest, Lab Biogeochim Contaminants Organ, F-29280 Plouzane, France. INRA LPGP, F-35042 Rennes, France. C2 IFREMER, FRANCE IFREMER, FRANCE IFREMER, FRANCE INRA, FRANCE SI LA ROCHELLE BREST SE UNIV-FRANCAISE PDG-RBE-BE PDG-RBE-HGS-LRHLR PDG-RBE-BE-LBCO PDG-RBE-BE-LBEX IN WOS Ifremer jusqu'en 2018 copubli-france copubli-p187 IF 3.224 TC 35 UR https://archimer.ifremer.fr/doc/00167/27799/26068.pdf LA English DT Article DE ;Exploration;Swimming activity;Organic pollutant effects;Generation;Video analysis AB The use of polychlorinated biphenyls (PCBs) has been banned for several decades. PCBs have a long biological half-life and high liposolubility which leads to their bioaccumulation and biomagnification through food chains over a wide range of trophic levels. Exposure can lead to changes in animal physiology and behavior and has been demonstrated in both experimental and field analyses. There are also potential risks to high trophic level predators, including humans. A maternal transfer has been demonstrated in fish as PCBs bind to lipids in eggs. In this study, behavioral traits (exploration and free swimming, with or without challenges) of contaminated zebrafish (Danio rerio) adults and their offspring (both as five-day-old larvae and as two-month-old fish reared under standard conditions) were measured using video-tracking. Long-term dietary exposure to a mixture of non-coplanar PCBs was used to mimic known environmental contamination levels and congener composition. Eight-week-old fish were exposed for eight months at 26-28 degrees C. Those exposed to an intermediate dose (equivalent to that found in the Loire Estuary, Sigma(CB) = 515 ng g(-1) dry weight in food) displayed behavioral disruption in exploration capacities. Fish exposed to the highest dose (equivalent to that found in the Seine Estuary, Sigma(CB) = 2302 ng g(-1), dry weight in food) displayed an increased swimming activity at the end of the night. In offspring, larval activity was increased and two-month-old fish occupied the bottom section of the tank less often. These findings call for more long-term experiments using the zebrafish model; the mechanisms underlying behavioral disruptions need to be understood due to their implications for both human health and their ecological relevance in terms of individual fitness and survival. PY 2013 PD SEP SO Neurotoxicology And Teratology SN 0892-0362 PU Pergamon-elsevier Science Ltd VL 39 UT 000326558600006 BP 45 EP 56 DI 10.1016/j.ntt.2013.07.001 ID 27799 ER EF