Oxidative Stress and Antioxidant Enzyme Alterations in Poecilia reticulata Tissues Tau-Fluvalinate Exposure
CUMHURIYET SCIENCE JOURNAL, cilt.47, sa.2, ss.236-242, 2026 (TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 47 Sayı: 2
- Basım Tarihi: 2026
- Doi Numarası: 10.17776/csj.1749006
- Dergi Adı: CUMHURIYET SCIENCE JOURNAL
- Derginin Tarandığı İndeksler: TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.236-242
- Van Yüzüncü Yıl Üniversitesi Adresli: Evet
Özet
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.