US EPA

6505745 

Journal Article 

Organic contaminants sorbed to microplastics affect marine medaka fish early life stages development 

Le Bihanic, F; Clérandeau, C; Cormier, B; Crebassa, JC; Keiter, SH; Beiras, R; Morin, B; Bégout, ML; Cousin, X; Cachot, J 

2020 

1 

Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363 

PERGAMON-ELSEVIER SCIENCE LTD 

OXFORD 

154 

111059 

English 

32319895 

10.1016/j.marpolbul.2020.111059 

WOS:000528205900032 

https://linkinghub.elsevier.com/retrieve/pii/S0025326X20301776
Exit
 

The role of polyethylene microplastics 4-6 μm size (MPs) in the toxicity of environmental compounds to fish early life stages (ELS) was investigated. Marine medaka Oryzias melastigma embryos and larvae were exposed to suspended MPs spiked with three model contaminants: benzo(a)pyrene (MP-BaP), perfluorooctanesulfonic acid (MP-PFOS) and benzophenone-3 (MP-BP3) for 12 days. There was no evidence of MPs ingestion but MPs agglomerated on the surface of the chorion. Fish ELS exposed to virgin MPs did not show toxic effects. Exposure to MP-PFOS decreased embryonic survival and prevented hatching. Larvae exposed to MP-BaP or MP-BP3 exhibited reduced growth, increased developmental anomalies and abnormal behavior. Compared to equivalent waterborne concentrations, BaP and PFOS appeared to be more embryotoxic when spiked on MPs than when alone in seawater. These results suggest a relevant pollutant transfer by direct contact of MPs to fish ELS that should be included in the ecotoxicological risk assessment of MPs. 

Benzo(a)pyrene; Benzophenone-3; Developmental toxicity; Marine medaka; Microplastics; Perfluorooctanesulfonic acid