Organic contaminants sorbed to microplastics affect marine medaka fish early life stages development
BEIRAS, Ricardo
Laboratorio de Microbioloxía, Departamento de Bioloxía Funcional e Ciencias da Saúde, Facultade de Ciencias do Mar and ECIMAT
Laboratorio de Microbioloxía, Departamento de Bioloxía Funcional e Ciencias da Saúde, Facultade de Ciencias do Mar and ECIMAT
COUSIN, Xavier
Environnements et Paléoenvironnements OCéaniques [EPOC]
Génétique Animale et Biologie Intégrative [GABI]
MARine Biodiversity Exploitation and Conservation [UMR MARBEC]
< Leer menos
Environnements et Paléoenvironnements OCéaniques [EPOC]
Génétique Animale et Biologie Intégrative [GABI]
MARine Biodiversity Exploitation and Conservation [UMR MARBEC]
Idioma
EN
Article de revue
Este ítem está publicado en
Marine Pollution Bulletin. 2020-05, vol. 154, p. 111059
Resumen en inglés
The role of polyethylene microplastics 4-6 mu m 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 ...Leer más >
The role of polyethylene microplastics 4-6 mu m 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 water-borne 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.< Leer menos
Palabras clave en inglés
Marine medaka
Microplastics
Developmental toxicity
Benzo(a)pyrene
Perfluorooctanesulfonic acid
Benzophenone-3
Proyecto ANR
Ecotoxicological effects of microplastics in marine ecosystems - ANR-15-JOCE-0002
Centros de investigación