TY - JOUR T1 - Characterization of floating microplastic contamination in the bay of Marseille (French Mediterranean Sea) and its impact on zooplankton and mussels A1 - Gérigny,Olivia A1 - Pedrotti,M.-L. A1 - El Rakwe,Maria A1 - Brun,Melanie A1 - Pavec,Marc A1 - Henry,Maryvonne A1 - Mazeas,Florence A1 - Maury,J. A1 - Garreau,Pierre A1 - Galgani,Francois AD - Ifremer, ODE/LITTORAL/LER-PAC, La Seine-sur-Mer, France AD - Sorbonne Universités, CNRS, UMR 7093, LOV, Villefranche sur mer, France AD - Ifremer, REM/RDT/LDCM, Brest, France AD - Ifremer, ODE/VIGIES, Nantes, France AD - Actimar, Université de Bretagne Occidentale, Brest, France AD - Ifremer, Univ. Brest, CNRS UMR 6523, IRD, Laboratoire d'Océanographie Physique et Spatiale (LOPS), IUEM, 29280 Plouzané, France UR - https://doi.org/10.1016/j.marpolbul.2022.113353 DO - 10.1016/j.marpolbul.2022.113353 KW - Microplastics KW - Mediterranean Sea KW - Harbor KW - Impact KW - Zooplankton N2 - Microplastics (MPs) were sampled in three seasons from 2016 to 2018 in the Bay of Marseille, northwestern Mediterranean Sea, adjacent to a highly urbanized area. Six sites were selected according to their different characteristics (river mouth, treatment plants, protected marine area). Surface floating MPs were characterized (number, weight, typology and polymer) as was zooplankton. In addition, mussels were submerged and used to investigate ingestion. Finally, a hydrodynamic model was used to improve understanding of dispersion mechanisms. The annual averages of floating MPs values ranged from 39,217 to 514,817 items/km2. The MPs collected were mainly fragments principally composed of polyethylene and polypropylene. The mean abundance ratio (MPs/zooplankton) was 0.09. On average 87% of mussel pools were contaminated and ingested 18.73 items/100 g of flesh. Two hydrodynamic patterns were identified: the first retaining the MPs in the harbor, and the second dispersing them outside. Y1 - 2022/02 PB - Elsevier BV JF - Marine Pollution Bulletin SN - 0025-326X VL - 175 ID - 86165 ER -