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Ecotoxicology and environmental safety v.147, 2018년, pp.139 - 143   SCI SCIE
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Modification of saltwater stress response in Cyprinus carpio (Linnaeus, 1758) pre-exposed to pesticide indoxacarb

Ghelichpour, Melika (Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran ); Taheri Mirghaed, Ali (Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran ); Mirzargar, Seyed Saeed (Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran ); Joshaghani, Hamidreza (Biochemistry & Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran ); Ebrahimzadeh Mousavi, Hoseinali (Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran );
  • 초록  

    Abstract To evaluate the effects of indoxacarb on saltwater stress response in Cyprinus carpio , the fish were pre-exposed to indoxacarb (0, 0.75, 1.5 and 3mg/L denoted as CP, 0.75IT, 1.5IT and 3IT, respectively) for 21 days and then released to saltwater. A negative control (CN) group was included (the fish were held in indoxacarb-free water for the entire experiment). The fish were sampled immediately (0h) and 24, 48 and 72h after the salinity exposure for the analysis of plasma cortisol, glucose and sodium, chloride, potassium and calcium levels. All fish pre-exposed to 3mg/L indoxacarb, died after the first day of salinity challenge. CP showed typical cortisol response after the salinity challenge, but, cortisol response of the fish pre-exposed to indoxacarb (0.75IT and 1.5IT) was blocked. Plasma glucose increased significantly in all groups compared to the CN; however, this elevation had no consistent trend in 0.75IT and 1.5IT which indicated interference in glucose response due to indoxacarb exposure. Plasma sodium increased (compared to CN) in all groups after the salinity challenge. However, elevation in plasma chloride and potassium was significantly different among the groups and the indoxacarb-treated fish showed slightly sooner ionic disturbance. The results clearly indicate that indoxacarb impairs stress response of C. carpio and the fish may not be able to respond normally to additional stressors, which threatens their survival. Highlights The effects of indoxacarb on carp challenge to saltwater was investigated. Indoxacarb had no effects on the pre-challenge cortisol, glucose and ions. Indoxacarb blocked cortisol response and modified glucose response. Indoxacarb exposure interferes with ionic balance after saltwater challenge.


  • 주제어

    Indoxacarb .   Salinity challenge .   Common carp .   Stress response .   Hydromineral balance.  

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