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Oxidative stress responses of microplastic-contaminated Gambusia affinis obtained from the Brantas River in East Java, Indonesia

Chemosphere 2022 41 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.

Nanik Retno Buwono, Nanik Retno Buwono, Nanik Retno Buwono, Nanik Retno Buwono, Agoes Soegianto, Nanik Retno Buwono, Nanik Retno Buwono, Agoes Soegianto, Nanik Retno Buwono, Agoes Soegianto, Yenny Risjani Agoes Soegianto, Agoes Soegianto, Agoes Soegianto, Agoes Soegianto, Agoes Soegianto, Agoes Soegianto, Yenny Risjani Agoes Soegianto, Yenny Risjani Yenny Risjani Yenny Risjani Nanik Retno Buwono, Agoes Soegianto, Yenny Risjani Yenny Risjani Agoes Soegianto, Yenny Risjani Agoes Soegianto, Agoes Soegianto, Agoes Soegianto, Agoes Soegianto, Agoes Soegianto, Agoes Soegianto, Agoes Soegianto, Agoes Soegianto, Agoes Soegianto, Agoes Soegianto, Yenny Risjani Nanik Retno Buwono, Yenny Risjani Yenny Risjani Agoes Soegianto, Agoes Soegianto, Agoes Soegianto, Nanik Retno Buwono, Agoes Soegianto, Nanik Retno Buwono, Agoes Soegianto, Agoes Soegianto, Nanik Retno Buwono, Nanik Retno Buwono, Yenny Risjani

Summary

Researchers examined oxidative stress biomarkers in wild Gambusia fish collected from the Brantas River in Indonesia and correlated them with microplastic contamination levels. They found elevated antioxidant enzyme activity in the gills and digestive tracts of fish from more polluted sites, indicating biological stress responses to microplastic exposure. The study provides field-based evidence linking microplastic pollution in tropical rivers to measurable physiological harm in native fish species.

Body Systems

Digestive

Study Type Environmental

The biological impact of microplastic (MP) contamination on freshwater biota has sparked interest. Microplastics are thought to have a high potential for toxicity, affecting organism metabolism. The goal of this study was to investigating the antioxidant indicators on the gills and digestive tract of Gambusia affinis fish in the Brantas River reacted to microplastic pollution. The obtained data was evaluated using path analysis. The digestive tract had much greater levels of superoxide dismutase (SOD), catalase (CAT), and malondialdehyde (MDA) than the gill. SOD concentration in the gills was 13.7 ± 5.3 U/mL, while SOD concentration in the digestive tract was 16.3 ± 3.6 U/mL. The CAT concentration in the gills (5.3 ± 2.9 ng/mL) was higher than the CAT concentration in the digestive tract (10.5 ± 2.8) ng/mL, while the MDA concentration in the gills (690.8 ± 135.6 mU/mL) was higher than the MDA concentration in the digestive tract (869.6 ± 122.2) mU/mL. MP abundance has a direct effect on SOD and MDA in the gills. Meanwhile, the quantity of MP in the digestive tract has a direct effect on SOD and CAT, which affects the development of the MDA response.

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