FN Archimer Export Format PT J TI Environmental microplastics disrupt swimming activity in acute exposure in Danio rerio larvae and reduce growth and reproduction success in chronic exposure in D. rerio and Oryzias melastigma BT AF Cormier, Bettie Cachot, Jerome Blanc, Melanie Cabar, Mathieu Clérandeau, Christelle Dubocq, Florian Le Bihanic, Florane Morin, Bénédicte Zapata, Sarah Bégout, Marie-Laure Cousin, Xavier AS 1:1,2;2:1;3:2,4;4:4;5:1;6:2;7:1;8:1;9:1;10:3;11:4; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:PDG-RBE-MARBEC-LSEA;11:; C1 Bordeaux University, EPOC, UMR CNRS 5805, Avenue des Facultés, 33400, Talence, France Man-Technology-Environment Research Centre, School of Science and Technology, Örebro University, Fakultetsgatan 1, 701 82, Örebro, Sweden MARBEC, Univ. Montpellier, CNRS, Ifremer, IRD, INRAE, 34250, Palavas-les-flots, France MARBEC, Univ. Montpellier, CNRS, Ifremer, IRD, INRAE, 34250, Palavas-les-flots, France C2 UNIV BORDEAUX, FRANCE UNIV OREBRO, SWEDEN IFREMER, FRANCE INRAE, FRANCE SI PALAVAS SE PDG-RBE-MARBEC-LSEA UM MARBEC IN WOS Ifremer UMR WOS Cotutelle UMR copubli-france copubli-p187 copubli-europe copubli-univ-france IF 8.9 TC 17 UR https://archimer.ifremer.fr/doc/00782/89436/94897.pdf https://archimer.ifremer.fr/doc/00782/89436/94898.docx LA English DT Article DE ;Environmental microplastics;Fish;Reprotoxicity;Growth and behaviour alterations;Biomarkers;Adsorbed chemicals AB Microplastics (MPs), widely present in aquatic ecosystems, can be ingested by numerous organisms, but their toxicity remains poorly understood. Toxicity of environmental MPs from 2 beaches located on the Guadeloupe archipelago, Marie Galante (MG) and Petit-Bourg (PB) located near the North Atlantic gyre, was evaluated. A first experiment consisted in exposing early life stages of zebrafish (Danio rerio) to MPs at 1 or 10 mg/L. The exposure of early life stages to particles in water induced no toxic effects except a decrease in larval swimming activity for both MPs exposures (MG or PB). Then, a second experiment was performed as a chronic feeding exposure over 4 months, using a freshwater fish species, zebrafish, and a marine fish species, marine medaka (Oryzias melastigma). Fish were fed with food supplemented with environmentally relevant concentrations (1% wet weight of MPs in food) of environmental MPs from both sites. Chronic feeding exposure led to growth alterations in both species exposed to either MG or PB MPs but were more pronounced in marine medaka. Ethoxyresorufin-O-deethylase (EROD) and acetylcholinesterase (AChE) activities were only altered for marine medaka. Reproductive outputs were modified following PB exposure with a 70 and 42% decrease for zebrafish and marine medaka, respectively. Offspring of both species (F1 generation) were reared to evaluate toxicity following parental exposure on unexposed larvae. For zebrafish offspring, it revealed premature mortality after parental MG exposure and parental PB exposure produced behavioural disruptions with hyperactivity of F1 unexposed larvae. This was not observed in marine medaka offspring. This study highlights the ecotoxicological consequences of short and long-term exposures to environmental microplastics relevant to coastal marine areas, which represent essential habitats for a wide range of aquatic organisms. PY 2022 PD SEP SO Environmental Pollution SN 0269-7491 PU Elsevier BV VL 308 UT 000838020100008 DI 10.1016/j.envpol.2022.119721 ID 89436 ER EF