Research Article

Oxidative Stress and Antioxidant Enzyme Alterations in Poecilia reticulata Tissues Tau-Fluvalinate Exposure

Volume: 47 Number: 2 April 29, 2026

Oxidative Stress and Antioxidant Enzyme Alterations in Poecilia reticulata Tissues Tau-Fluvalinate Exposure

Abstract

Tau-fluvalinate is a synthetic pyrethroid insecticide and acaricide that is extensively utilised for the management of numerous agricultural pests. However, mounting evidence suggests that tau-fluvalinate exerts a deleterious effect on the health of aquatic organisms, resulting in tissue damage and mortality. The objective of the present study was to evaluate the effects of sublethal tau-fluvalinate concentrations on oxidative stress and antioxidant enzyme activities in the liver, gills, and muscles of Poecilia reticulata. The fish were exposed to tau-fluvalinate concentrations of 0.0033, 0.0065, and 0.013 µg/L for a period of 96 hours. The activities of superoxide dismutase, catalase and glutathione peroxidase, in addition to malondialdehyde levels, were analysed in the liver, gills and muscles. A statistical analysis was conducted on these data (P<0.05). In all tissues, exposure to tau-fluvalinate resulted in significant decreases in antioxidant enzyme activities and marked increases in malondialdehyde levels, indicating increased oxidative stress. The findings reveal that sublethal tau-fluvalinate exposure weakens the antioxidant defence system and causes tissue damage in the liver, gills, and muscles of Poecilia reticulata.

Keywords

Supporting Institution

Van Yüzüncü Yıl University Scientific Research Projects Coordination Office

Project Number

FYL-2018-7267

Ethical Statement

The study was approved by the Local Ethics Committee for Animal Experiments at Van Yüzüncü Yıl University (Ethics approval reference number: YÜHADYEK-2018/03).

References

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Details

Primary Language

English

Subjects

Enzymes

Journal Section

Research Article

Publication Date

April 29, 2026

Submission Date

July 23, 2025

Acceptance Date

March 29, 2026

Published in Issue

Year 2026 Volume: 47 Number: 2

APA
Özok, N., & Koç, A. (2026). Oxidative Stress and Antioxidant Enzyme Alterations in Poecilia reticulata Tissues Tau-Fluvalinate Exposure. Cumhuriyet Science Journal, 47(2), 236-242. https://doi.org/10.17776/csj.1749006

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