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Determination of microplastic in various freshwater fish species from agriculture fishpond in Tanjong Karang, Selangor
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Researchers found microplastics in the gastrointestinal tracts of 29.25% of freshwater fish from an aquaculture fishpond in Tanjong Karang, Malaysia — a higher rate than previously reported in the region — with variation across species linked to feeding zone differences.
Microplastic (MP) contamination in fish species is one of the emerging environmental issues due to the increase in plastic pollution in the environment. As a result, this research looked into the abundance, properties, and variation of MPs in various commercial freshwater fish species from Tanjong Karang. Twelve fish from diverse feeding zones were taken to determine the variation in MPs ingestion rate between feeding zones. MPs were discovered in the gastrointestinal tracts (GIT) of 29.25% of all fish samples studied, which is greater than previously reported findings in other regions. Anabas testudineus has the highest concentration of MPs of any fish species. Microscopic examinations (Optical microscope Leica DM2500) revealed that MPs were dominated the film of morphotype and white colour. FTIR research revealed that the polymers discovered in fish GIT were high density polyethene and polypropylene. The results of this study demonstrate that demersal fishes had a higher concentration of MPs than benthopelagic and pelagic fishes, indicating that plastic ingestion in fish may be related to the feeding habitat. Our findings will assist people to understand which freshwater fishes and fishes from which feeding zones in Tanjong Karang are more contaminated with MPs for human consumption.
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Determination of Microplastic in Selected Freshwater Fish Species from Agriculture Fishpond in Tanjong Karang, Selangor, Malaysia
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Researchers investigated microplastic contamination in twelve freshwater fish species from aquaculture fishponds in Tanjong Karang, Selangor, Malaysia, using visual examination of gastrointestinal tract contents. Microplastics were detected in 29.2% of fish samples, with prevalence varying by feeding zone, a rate higher than previously documented in comparable regional studies.
First Evidence of Microplastic Ingestion by Riverine Fish From the Freshwater of Northwest Peninsular Malaysia
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Researchers found microplastics in the guts of multiple fish species from two rivers in northwest Malaysia, with some species averaging nearly 50 microplastic particles per gram of body weight. The dominant particles were fibers and fragments of polyethylene and polypropylene — findings that signal widespread contamination of freshwater food sources and raise concerns about human exposure through fish consumption.
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Microplastics were found in the digestive tracts of eight commercially important marine fish species caught in Malaysian waters, with prevalence and particle types varying by species and location. The study raises food safety concerns for Malaysian seafood consumers and highlights the widespread occurrence of microplastic ingestion in wild-caught fish from Southeast Asian seas.
Microplastic fragments in digestive tracts of fish from the coastal waters of Kuantan, Pahang
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Researchers found microplastic fragments in the digestive tracts of five fish species bought at markets in Kuantan, Malaysia, with all species showing contamination. Fibres and fragments were the most common types, indicating widespread microplastic exposure in coastal Malaysian marine environments.
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Researchers examined 48 freshwater fish from 18 species in Bangladesh and found microplastics in the digestive tracts of over 73% of the fish studied. Fibers were the most common shape, and the plastics were primarily polyethylene and polypropylene-based polymers. Bottom-dwelling fish contained more microplastics than those living higher in the water column, suggesting that contaminated sediments are a significant source of exposure for freshwater species.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.