Evaluation of the impact of polyethylene microbeads ingestion in European sea bass (Dicentrarchus labrax) larvae
Abstract
Microplastics are present in marine habitats worldwide and may be ingested by low trophic organisms such as fish larvae, with uncertain physiological consequences. The present study aims at assessing the impact of polyethylene (PE 10-45 μM) microbeads ingestion in European sea bass (Dicentrarchus labrax) larvae. Fish were fed an inert diet including 0, 10(4) and 10(5) fluorescent microbeads per gram from 7 until 43 days post-hatching (dph). Microbeads were detected in the gastrointestinal tract in all fish fed diet incorporating PE. Our data revealed an efficient elimination of PE beads from the gut since no fluorescent was observed in the larvae after 48 h depuration. While the mortality rate increased significantly with the amount of microbeads scored per larvae at 14 and 20 dph, only ingestion of the highest concentration slightly impacted mortality rates. Larval growth and inflammatory response through Interleukine-1-beta (IL-1β) gene expression were not found to be affected while cytochrome-P450-1A1 (cyp1a1) expression level was significantly positively correlated with the number of microbeads scored per larva at 20 dph. Overall, these results suggest that ingestion of PE microbeads had limited impact on sea bass larvae possibly due to their high potential of egestion.
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Mazurais et al. (2015) reported mortality and induction of the cytochrome P450 (CYP P450) in D. labrax.
“Mazurais et al. (2015) reported mortality and induction of the cytochrome P450 (CYP P450) in D. labrax (846 h; 10-45 μm; 10-100 particles mg -1 of diet).”
From Studies of the Effects of Microplastics on Aquatic Organisms: What Do We Know and Where Should We Focus Our Efforts in the Future? (2018) · cites this paper as Mazurais et al., 2015
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- Authors
- Mazurais, D., Ernande, B., Quazuguel, P., Severe, A., Huelvan, C., Madec, L., Mouchel, O., Soudant, P., Robbens, J., Huvet, A., & Zambonino-Infante, J.
- Affiliations
- Ifremer (FR)
- Centre National de la Recherche Scientifique (FR)
- Instituut voor Landbouw en Visserijonderzoek (BE)
- Corresponding author
- Mazurais, D.
- Venue
- Marine Environmental Research
- Publisher
- Elsevier BV
- Published
- 2015-12
- Volume
- 112
- Issue
- Pt A
- Pages
- 78-85
- ISSN
- 0141-1136 (ISSN-L)
- OpenAlex
- W1753501581
- Cited by
- 407
- References
- 57
- Citations by year
- 2026: 21 · 2025: 30 · 2024: 40 · 2023: 54 · 2022: 57 · 2021: 60 · 2020: 49 · 2019: 40 · 2018: 26 · 2017: 19 · 2016: 11
- FWCI
- 11.63
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Marine Environmental Research (publishedVersion)
- PubMed (publishedVersion)
- HAL (submittedVersion)
- Institutional Archive of Ifremer (French Research Institute for Exploitation of the Sea) (submittedVersion)
- Topics
- Physical Sciences › Environmental Science › Pollution › Microplastics and Plastic Pollution
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Environmental Toxicology and Ecotoxicology
- Physical Sciences › Environmental Science › Global and Planetary Change › Marine and fisheries research
- Keywords
- polyethylene microbeads, microplastics, Dicentrarchus labrax, fish larvae, mortality, larval growth, IL-1β, CYP1A1, egestion, fluorescent microspheres, marine pollution
- MeSH terms
- Animals, Animal Nutritional Physiological Phenomena, Bass, Digestion, Longevity, Microspheres, Water Pollutants, Chemical, Cytochrome P-450 CYP1A1, Polyethylene, Fish Proteins, Interleukin-1beta
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