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Combined polystyrene microplastics and chlorpyrifos decrease levels of nutritional parameters in muscle of rainbow trout (Oncorhynchus mykiss)

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Abstract

Microplastic (MP) is a major contaminant in the aquatic environment. In addition to the physical threats posed by microplastic ingestion, their potential as a vector for the transport of hydrophobic pollutants is required to be adequately addressed. This study examined the effects of polystyrene microplastics individually or combined with chlorpyrifos insecticide on nutritional parameters in muscle of rainbow trout (Onchorhynchus mykiss). Fish were exposed to individual polystyrene microplastic concentrations (30 or 300 μg/L), or individual chlorpyrifos concentrations (2 or 6 μg/L), and their combination at similar concentrations of chlorpyrifos and microplastics. Results showed individual polystyrene microplastics had minimal effects on amino acid and fatty acid composition and no effect on protein contents of fish muscle. However, significant alterations in amino acid and fatty acid composition, and protein contents, were observed in combined polystyrene microplastics and chlorpyrifos groups. These findings suggested that polystyrene microplastics cause toxicity and increase the adverse effects of chlorpyrifos on the muscle of fish. This investigation provided evidence toward low nutritional value of farmed or wild fish muscle that grows in areas with high concentrations of microplastics and pesticides.

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Acknowledgements

This study was supported by the Center for International Scientific Studies and Collaboration (CISSC), Ministry of Science, Research and Technology, Iran (391890).

Availability of data and materials

All data analyzed during this study are included in this published article and its supplementary information files.

Funding

This work was financially supported by the Center for International Scientific Studies and Collaboration (CISSC), Ministry of Science, Research and Technology, Iran (391890).

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Authors and Affiliations

Authors

Contributions

Parichehr Hanachi: funding acquisition, methodology, review and editing. Samaneh Karbalaei: project administration, conceptualization, writing original draft, visualization, formal analysis, investigation. Sujuan Yu: analysis, review and editing.

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Correspondence to Samaneh Karbalaei.

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Ethics approval

The experimental fish used in the present study were cultured following the terms of use of animals approved by the Iranian academic center for education, culture and research (approval ID: IR.ACECR.IBCRC.REC.1398.008/2019).

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No human data was used in this study.

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All of the authors have given the consent to publish this data.

Competing interests

The authors declare no competing interests.

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Responsible Editor: Bruno Nunes

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Hanachi, ., Karbalaei, S. & Yu, S. Combined polystyrene microplastics and chlorpyrifos decrease levels of nutritional parameters in muscle of rainbow trout (Oncorhynchus mykiss). Environ Sci Pollut Res 28, 64908–64920 (2021). https://doi.org/10.1007/s11356-021-15536-4

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  • DOI: https://doi.org/10.1007/s11356-021-15536-4

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