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The concentration of microplastic in water and fish (Gambusia affinis) collected from Brantas River
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Researchers measured microplastic concentrations in water and in the bodies of mosquitofish (Gambusia affinis) from the Brantas River in Malang, Indonesia, finding contamination in both. The study confirms that freshwater fish in Indonesian urban rivers are ingesting microplastics, raising concerns about human exposure through fish consumption.
The Brantas River is a freshwater river that flows in the area of Malang. The current quality of the Brantas River has decreased due to microplastic contamination. Microplastic has dynamic properties and high flexibility accumulating in the waters and organisms. The purpose of the study was to determine the type and abundance of microplastic in water and Gambusia affinis fish in the Brantas River Malang area. This study employed a survey method and sampling which was carried out in five different locations based on land used. The identification of microplastics used NOAA Technical Memorandum NOS-OR&R-48 as the standard method. Two-way ANOVA analysis was used to determine the differences in the abundance of microplastics in water and fish at different stations. The average abundance of microplastic in water samples is equal to 5593.33 ± 1137.35 particles/m3 and in gambusia fish samples is 3.09 ± 0.29 particles/individual. Microplastic in the water samples was dominated by fragments type, while fibers type had mainly founded in gambusia fish samples. The result of the abundance of microplastic of water samples and fish samples was different at each station was influenced by their respective land uses.
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Spatio-temporal patterns of occurrence of microplastics in the freshwater fish Gambusia affinis from the Brantas River, Indonesia
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Researchers conducted the first investigation of microplastics in mosquitofish from Indonesia's Brantas River, finding significantly higher concentrations downstream than upstream and a positive correlation between fish body length and microplastic accumulation.
Contamination of microplastics in Brantas River, East Java, Indonesia and its distribution in gills and digestive tracts of fish Gambusia affinis
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Researchers sampled water, gills, and digestive tracts of fish in Indonesia's Brantas River and found microplastics in all three, with fragments under 0.1 mm making up the majority — demonstrating that river fish are actively ingesting microplastics that then accumulate in their bodies.
Investigation of microplastic ingestion in commercial fish from Surabaya river, Indonesia
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Researchers examined microplastic contamination in commercial fish species from the Surabaya River in Indonesia, a major urban waterway used for both clean water supply and fisheries. They found microplastics present in all fish studied, with variations in abundance linked to feeding behavior and habitat. The findings raise concerns about food safety for communities that rely on river fish as a dietary staple.
Microplastic pollution in Surabaya River Water and Aquatic Biota, Indonesia
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Researchers surveyed microplastic contamination in the Surabaya River and its aquatic organisms in Indonesia, finding MPs in water, sediment, and multiple fish species, with fiber concentrations highest near densely populated urban areas and fish tissue contamination raising concerns for human exposure through seafood consumption.
The Occurrence of Microplastic in Suckermouth Armored Catfish in Krukut River, Jakarta, Indonesia
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Microplastics were found in the digestive tracts of suckermouth armored catfish from the Krukut River in Jakarta, Indonesia, with prevalence varying by river segment. The findings indicate that even urban river fish used as a water supply source are contaminated with microplastics, raising food safety concerns.
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