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Microplastic Accumulation in Crayfish Astacus leptodactylus (Eschscholtz 1823) and Sediments of Durusu (Terkos) Lake (Turkey)

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Abstract

The accumulation and fragmentation of plastics in water sources is one of the important problems of recent times. In this study, it was aimed to determine and characterize the microplastic accumulation in the sediment and in the stomach and gills of the freshwater crayfish Astacus leptodactylus (Eschscholtz 1823) in Durusu (Terkos) Lake, which is one of the most important water resources of Istanbul and even the Marmara Region. Thus, the microplastic contamination of both the lake sediment and crayfish was revealed for the first time in Turkey, and insight was given into the transmission of this contamination to the biota. The microplastic amount of the sediment samples was found as 32.26–396.71 pieces.kg−1 dry sediment. The microplastic amount was determined as 0.89–15.67 pieces.ind−1 in stomach content and 0.5–19.67 pieces.ind−1 in the gills of the crayfish. The predominant microplastic types were found as fragments in the sediment samples, fibers in the gill, and stomach content. As a result of the analysis, the main polymers identified in crayfish samples were polypropylene (78%) and followed by polyphenylene sulfide (11%) and polyethylene (11%); in sediment samples, polypropylene (47%) and followed by polyvinyl alcohol (20%), polyethylene (20%), and polyamide (13%). Activities carried out in the coastal area pollute the lake, and it is necessary to control the anthropogenic and fisheries-related pollution in the lake.

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Data Availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

The author is grateful to Mert Kesiktaş and the Istanbul University Department of Scientific Research Projects (project number FBA-2018-29978 and ONAP 2423).

Funding

This work is supported by the Research Fund of Istanbul University (project number FBA-2018–29978).

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AM acquired the financial support for the project leading to this publication, conceptualization, and writing of the original draft. LB and AÖ analyzed and interpreted the data and did the preparation of sediments for analysis. EY and AM made crayfish analysis. SKG, EY, and BB made Raman analysis, figures, and visualization. All the authors have read and agreed to the published version of the manuscript.

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Correspondence to Ayşegül Mülayim.

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The authors declare no competing interests.

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Mülayim, A., Bat, L., Öztekin, A. et al. Microplastic Accumulation in Crayfish Astacus leptodactylus (Eschscholtz 1823) and Sediments of Durusu (Terkos) Lake (Turkey). Water Air Soil Pollut 233, 449 (2022). https://doi.org/10.1007/s11270-022-05908-y

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  • DOI: https://doi.org/10.1007/s11270-022-05908-y

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