Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Microplastic Contamination in Shrimps from the Negombo Lagoon - Sri Lanka

P.L.M.J.H. Lawan
ORCID logo ,
D. S. M. De Silva
* ORCID logo ,
A.A. Deeptha Amarathunga
ORCID logo ,
A. McGoran
,
A. Bakir
,
D. B. Sivyer
,
C. Reeve
Version 1 : Received: 12 December 2023 / Approved: 13 December 2023 / Online: 13 December 2023 (12:08:57 CET)

A peer-reviewed article of this Preprint also exists.

Lawan, P.L.M.J.H.; De Silva, D.S.M.; Amarathunga, A.A.D.; McGoran, A.; Bakir, A.; Sivyer, D.B.; Reeve, C. Microplastic Contamination in Shrimps from the Negombo Lagoon—Sri Lanka. Water 2024, 16, 447. Lawan, P.L.M.J.H.; De Silva, D.S.M.; Amarathunga, A.A.D.; McGoran, A.; Bakir, A.; Sivyer, D.B.; Reeve, C. Microplastic Contamination in Shrimps from the Negombo Lagoon—Sri Lanka. Water 2024, 16, 447.

Abstract

Microplastic pollution is a serious global issue affecting freshwater systems, coastal regions, and oceans. These non-biodegradable materials have a detrimental impact on marine species and ecosystems, causing disruption to their feeding, breathing, and reproduction. In this study, 120 samples of two species of shrimp, P. monodon and P. indicus, from ten locations in the Negombo lagoon in Sri Lanka were analyzed. A total of 415 items were identified as microplastic with an average of 8.29 ± 4.63 items per gram in P. monodon and 5.52 ± 3.78 items per gram in P. indicus. The majority of microplastics identified were fibers (93%), and the remaining being fragments. Most of the microplastics were >1000 μm, and the most prevalent color was blue (61%), followed by red (15%), black (9%), and others. These comprised of polystyrene, polyamide, polyester, polypropylene, and rayon, as identified by FTIR spectroscopy. This study highlights the prevalence of microplastics in shrimps harvested from the Negombo lagoon and the potential impact on marine life.

Keywords

Microplastics; shrimps; Negombo lagoon; pollution; FTIR

Subject

Environmental and Earth Sciences, Pollution

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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