Effects of electrofishing stress on hematological parameters of wild carp (Cyprinus carpio)

In this study, the effects of electrofishing stress on hematological parameters of wild carp (Cyprinus carpio, L.) were investigated. For this purpose, 10 fishes were considered as treatment and 10 fishes as control. Treatment fish’s were impressed by electrical shock for 5 second and blood was sampled from caudal vein via streel syringes and hematological parameters were investigated. Results showed that electrofishing had significant (P<0.05) impact on leukocyte number, but no significant (P>0.05) changes showed in other parameters. Based on results, increasing the number of leukocyte is the first and quickest reaction of carp to electrofishing.