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    Abundance and characteristics of microplastics in commercially important bottom dwelling finfishes and shellfish of the Vembanad Lake, India

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    Mar_Poll_Bull_172_112803a.pdf (1.209Mb)
    Date
    2021
    Author
    Nikki, R.
    Jaleel, A.K.U.
    Ragesh, S.
    Shini, S.
    Saha, M.
    DineshKumar, P.K.
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    Abstract
    This paper characterize microplastics (MPs) in the heavily urbanized, brackish water Vembanad Lake (India), focussing on some commercially important bottom-feeding fishes and shellfish (Arius maculatus, Etroplus suratensis, E. maculatus and Villorita sp.). The average abundance of MPs was higher in the water column (872 � 573 nos./m3) than in finfishes (15 � 13 particles per fish) and shellfish (23 � 20 nos./ind.). Fibre was the most abundant MP type in the water and the organisms examined. The size of MPs obtained from finfishes ranged between 0.04 and 4.73 mm (4 � 3 mm), with a majority of particles being <4 mm. No correlation was found between biological features (e.g. gut length, mouth size) of fishes and the size of MPs in their gut. In Villorita sp., the abundance of MPs was positively correlated with the size of the individuals. Raman spectroscopy confirmed the presence of chlorinated polyvinyl chloride, polyethylene, polypropylene and polyester in the samples
    URI
    https://doi.org/10.1016/J.MARPOLBUL.2021.112803
    https://drs.nio.org/drs/handle/2264/8724
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