Anesthetic Activity of Clove Oil (Eugenol) on the Lake Van Fish (Chalcalburnus tarichi Pallas, 1811)

Abstract

The use of clove oil (eugenol) as an anesthetic for Lake Van fish(Chalcalburnus tarichi), an endemic cyprinid fish species ofLake Van basin, was examined. Induction times were determined to be ≥35, <4, <3, <2, < 2 and ≥1 min at 20, 40,50, 60, 80 and 100 mg/L clove oil concentrations, respectively. Recovery times upon 10 min of exposure to eugenol were determined respectively to be >3, >4,>3, >4,>6 and >8 min clove oil can be considered as a suitable anesthetic for Chalcalburnus tarichi and an optimum anesthetic concentration of 50 mg/L is recommended.