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Microplastic pollution in the gastrointestinal tract of giant river catfish Sperata seenghala (Sykes, 1839) from the Meghna River, Bangladesh

Environmental Science and Pollution Research 2023 15 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Hiraku Tanoiri, Haruka Nakano Haruka Nakano Hiraku Tanoiri, Hiraku Tanoiri, Hiraku Tanoiri, Shaikh Tareq Arafat, Shaikh Tareq Arafat, Haruka Nakano Haruka Nakano Haruka Nakano Haruka Nakano Haruka Nakano Haruka Nakano Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hiraku Tanoiri, Hisayuki Arakawa, Hiraku Tanoiri, Hiraku Tanoiri, Hisayuki Arakawa, Hisayuki Arakawa, Hiraku Tanoiri, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Haruka Nakano Hisayuki Arakawa, Hisayuki Arakawa, Haruka Nakano Haruka Nakano Haruka Nakano Haruka Nakano Haruka Nakano Haruka Nakano Hisayuki Arakawa, Hisayuki Arakawa, Haruka Nakano Haruka Nakano Haruka Nakano Masashi Yokota, Masashi Yokota, Haruka Nakano Masashi Yokota, Hisayuki Arakawa, Hisayuki Arakawa, Haruka Nakano Hisayuki Arakawa, Haruka Nakano Hisayuki Arakawa, Haruka Nakano Hisayuki Arakawa, Masashi Yokota, Haruka Nakano Haruka Nakano Haruka Nakano Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Haruka Nakano Masashi Yokota, Hisayuki Arakawa, Hisayuki Arakawa, Shaikh Tareq Arafat, Shaikh Tareq Arafat, Haruka Nakano Masashi Yokota, Hisayuki Arakawa, Hisayuki Arakawa, Haruka Nakano Hisayuki Arakawa, Hisayuki Arakawa, Masashi Yokota, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Hisayuki Arakawa, Takeshi Terahara, Takeshi Terahara, Hisayuki Arakawa, Takeshi Terahara, Takeshi Terahara, Hisayuki Arakawa, Takeshi Kobayashi, Takeshi Kobayashi, Takeshi Kobayashi, Takeshi Kobayashi, Shaikh Tareq Arafat, Hisayuki Arakawa, Hisayuki Arakawa, Masashi Yokota, Masashi Yokota, Hisayuki Arakawa, Hiraku Tanoiri, Hiraku Tanoiri, Haruka Nakano

Summary

Researchers examined the digestive tracts of giant river catfish from the Meghna River in Bangladesh and found microplastics in 90 percent of the fish sampled. The most common particles were polypropylene-polyethylene fragments smaller than 100 micrometers, with the highest contamination near densely populated areas. The findings add to growing evidence that freshwater fish in South Asian rivers are widely contaminated with microplastics.

Polymers

PE PP

Body Systems

Digestive

Study Type Environmental

Freshwater rivers are considered the major route for microplastics (MPs), yet limited studies have been reported on MPs in freshwater river fish, especially in Bangladesh. This research reveals the intake of MPs by the giant river catfish Sperata seenghala, collected from the Meghna River, which is the only outlet of the Ganges-Brahmaputra River. Three locations, namely, Chandpur Sadar, Bhola Sadar, and Char Fasson, along the Meghna River, were selected in order to investigate the gastrointestinal tracts (GIT) of the fish. Ninety percent (n=27) of fish (n=30) were contaminated, with fragment-shaped MPs (65%) as the most abundant among the four types. A total of 179 MP particles were detected using micro-Fourier transformed infrared spectroscopy (μ-FTIR), with an average of 5.96 ± 1.32 MP particles per fish. Among the four size groups, the highest proportion of MPs (54%) occurred in the 45-100 μm group; the dominant color among the seven color groups was white (30%). The highest quantity of MPs was found in the relatively densely populated Chandpur Sadar region. Polypropylene-polyethylene copolymer (PP-PE, 23%) was proportionally dominant among the 15 types. No significant relationship was found between the total number of observed MPs and the GIT weight. This study will help us to understand MP pollution in S. seenghala that may transmit to the human body through the food chain.

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