Aliakbar Hedayati*, Fatemeh Darabitabar, Fardin Shaluei, Zahra Ghaffari and Alireza Kashiri
The aim of this study was the effects of commercial gasoline in survival and mortality of silver carp (Hypophthalmichthys molitrix). 150 silver carp with an average weight of 3.3 ± 1.1 g and lengths of 4 ± 0.75 cm was used in this study. After transferring to the laboratory, fish were kept for one week within 200 L tanks in order to adapt to the laboratory condition. After compatibility time, 100 fish were randomly selected and divided into 14 treatments (0, 2, 5, 10, 20, 40, 60, 80, 100, 200, 400, 600, 800 and 100 ppm of Commercial gasoline) with three replicates (7 fish in each treatment). Results of this study showed 406.4 ± 0.46 ppm for LC5096h of commercial gasoline in silver carp, maximum allowable concentration (MAC Value) was also calculated as 40.64 mg/l. Given that many of the species found in Iran such as silver carp are resistant to the adverse effects of commercial diesel and with the arrival of the hydrocarbon composition to rivers as well as leaking fuel tanks and the entry of these compounds into the water caused fish mortality.