FN Archimer Export Format PT J TI Impact of environmental micropollutants and diet composition on the gut microbiota of wild european eels (Anguilla anguilla) BT AF Bertucci, Anthony Hoede, Claire Dassié, Emilie Gourves, Pierre-Yves Suin, Amandine Le Menach, Karine Budzinski, Hélène Daverat, Françoise AS 1:1;2:2,3;3:4;4:4;5:5;6:4;7:4;8:1; FF 1:;2:;3:;4:;5:;6:;7:;8:; C1 EABX, INRAE, 50 Avenue de Verdun 33612, Cestas, France Université de Toulouse, INRAE, UR MIAT, PF GenoToul Bioinfo, 31320, Castanet-Tolosan, France Université Fédérale de Toulouse, INRAE, BioinfOmics, GenoToul Bioinformatics Facility, 31326, Castanet-Tolosan, France Univ. Bordeaux, CNRS, EPOC, EPHE, UMR 5805, 33600, Pessac, France Genome & Transcriptome - Plateforme GeT-PlaGe, INRAE, 31326, Castanet-Tolosan, France C2 INRAE, FRANCE UNIV TOULOUSE, FRANCE UNIV TOULOUSE, FRANCE UNIV BORDEAUX, FRANCE INRAE, FRANCE IF 8.9 TC 5 UR https://archimer.ifremer.fr/doc/00796/90750/96369.pdf LA English DT Article DE ;European eel;Gut microbiome;Heavy metals;Persistent organic pollutants;Diet AB In fish, the gut microbiome plays a crucial role in homeostasis and health and is affected by several organic and inorganic environmental contaminants. Amphidromous fish are sentinel species, particularly exposed to these stressors. We used whole metagenome sequencing to characterize the gut microbiome of wild European eels (Anguilla anguilla) at a juvenile stage captured from three sites with contrasted pollution levels in term of heavy metals and persistent organic pollutants. The objectives were to identify what parameters could alter the gut microbiome of this catadromous fish and to explore the potential use of microbiota as bioindicators of environment quality. We identified a total of 1079 microbial genera. Overall, gut microbiome was dominated by Proteobacteria, Firmicutes and Actinobacteria. Alpha and beta diversity were different amongst sites and could be explained by a reduced number of environmental and biological factors, specifically the relative abundance of fish preys in eels’ diet, PCB101, γHCH (lindane), transnonachlor and arsenic. Furthermore, we identified a series of indicator taxa with differential abundance between the three sites. Changes in the microbial communities in the gut caused by environmental pollutants were previously undocumented in European eels. Our results indicate that microbiota might represent another route by which pollutants affect the health of these aquatic sentinel organisms. PY 2022 PD DEC SO Environmental Pollution SN 0269-7491 PU Elsevier BV VL 314 UT 000862330700001 DI 10.1016/j.envpol.2022.120207 ID 90750 ER EF