Realistic environmental exposure to microplastics does not induce biological effects in the Pacific oyster Crassostrea gigas

Type Article
Date 2020-01
Language English
Author(s) Revel Messika1, Châtel Amélie1, Perrein-Ettajani Hanane1, Bruneau Mélanie1, Akcha Farida2, Sussarellu RossanaORCID2, Rouxel Julien2, Costil Katherine3, Decottignies Priscilla4, Cognie Bruno4, Lagarde Fabienne5, Mouneyrac Catherine1
Affiliation(s) 1 : Laboratoire Mer, Molécules, Santé (MMS EA2160), Université Catholique de l’Ouest, 3 place André Leroy, 49000, Angers, France
2 : Ifremer, Laboratoire d’Ecotoxicologie, Rue de l’Ile d’Yeu, BP21105, 44311, Nantes cedex 03, France
3 : UMR BOREA, MNHN, UPMC, UCBN, CNRS-7208, IRD-207, SFR ICORE, Université de Caen Normandie, Caen, France
4 : FR CNRS 3473 IUML, Laboratoire Mer, Molécules, Santé (MMS EA2160), Université de Nantes, 2 rue de la Houssinière, Nantes Cedex 3, France
5 : Institut des Molécules et des Matériaux du Mans, UMR CNRS 6283, Le Mans Université, Avenue Olivier Messiaen, 72085, Le Mans Cedex, France
Source Marine Pollution Bulletin (0025-326X) (Elsevier BV), 2020-01 , Vol. 150 , P. 110627 (10p.)
DOI 10.1016/j.marpolbul.2019.110627
WOS© Times Cited 23
Keyword(s) Microplastics, Crassostrea gigas, Biodeposits, Biomarkers, Bivalves
Abstract

The aim of the present study was to evaluate the presence and potential toxic effects of plastic fragments (<400 μm) of polyethylene and polypropylene on the Pacific oyster Crassostrea gigas. Oysters were exposed to environmentally relevant concentrations (0, 0.008, 10, 100 μg of particles/L) during 10 days, followed by a depuration period of 10 days in clean seawater. Effects of microplastics were evaluated on the clearance rate of organisms, tissue alteration, antioxidant defense, immune alteration and DNA damage. Detection and quantification of microplastics in oyster's tissues (digestive gland, gills and other tissues) and biodeposits using infrared microscopy were also conducted. Microplastics were detected in oyster's biodeposits following exposure to all tested concentrations: 0.003, 0.006 and 0.05 particles/mg of biodeposits in oysters exposed to 0.008, 10 and 100 μg of particles/L, respectively. No significant modulation of biological markers was measured in organisms exposed to microplastics in environmentally relevant conditions.

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Revel Messika, Châtel Amélie, Perrein-Ettajani Hanane, Bruneau Mélanie, Akcha Farida, Sussarellu Rossana, Rouxel Julien, Costil Katherine, Decottignies Priscilla, Cognie Bruno, Lagarde Fabienne, Mouneyrac Catherine (2020). Realistic environmental exposure to microplastics does not induce biological effects in the Pacific oyster Crassostrea gigas. Marine Pollution Bulletin, 150, 110627 (10p.). Publisher's official version : https://doi.org/10.1016/j.marpolbul.2019.110627 , Open Access version : https://archimer.ifremer.fr/doc/00588/70055/