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Accumulation and Risk Assessment of Microplastics in the Commercially Important Whiteleg Shrimp (Litopenaeus vannamei) From Estuarine Sluice Gate Harvest Sites in Goa, India
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Scientists found tiny plastic particles (microplastics) in shrimp and water from harvest sites in Goa, India, with one location showing notably higher contamination than others. While the overall pollution levels were classified as low-risk based on standard measurements, the study confirms that people who eat shrimp from these waters are likely consuming small amounts of plastic with each meal—a reminder that microplastic exposure through seafood is a real, ongoing concern even when levels appear modest.
Microplastics (MPs) are emerging contaminants with growing concerns about their accumulation and potential impacts on aquatic organisms. This study investigated the presence and impact of MPs in shrimp and water samples collected from three sluice gate harvest sites in Goa. MPs were found in the hepatopancreas of shrimp and water from all the sites, with St. Estevam site exhibiting the highest concentrations. Various shapes, sizes and polymers of MPs were identified with sizes ranging between 0.38 and 1168.18 μm. The CMPI highlighted minimum to average impacts. The PLI of all the sites fall under Category I indicating low hazard level. The BAF revealed low bioaccumulation (< 1). The EDI was calculated to be 0.74 ± 0.28 to 2.39 ± 0.92 particles/kg b.w/day. Although pollution indices showed low impact levels, these findings highlight the risk associated with consumption of MPs contaminated seafood.
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Researchers examined clams and shrimp from estuarine environments in Goa, India, and found microplastics present in both species and their surrounding waters, with shrimp from one site showing particularly high contamination and bioaccumulation. The particles were predominantly polyamide, polyethylene, and polystyrene fibers and fragments, likely originating from fishing, tourism, and waste disposal activities. The findings raise concerns about food safety for local and tourist populations who regularly consume seafood from these coastal areas.
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Researchers characterized microplastic contamination in farmed whiteleg shrimp (Litopenaeus vannamei), measuring particle abundance, size distribution, polymer types, and potential human dietary exposure through shrimp consumption. Microplastics were found throughout shrimp tissues, with implications for seafood safety.
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Researchers detected microplastics in the surface water and edible tissues of white leg shrimp (Litopenaeus vannamei) farmed in Thailand, raising food safety concerns about microplastic contamination in a commercially important aquaculture species consumed widely across Asia.
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