Effects of parasitic infections on some hematological parameters of pike (esox lucius linnaeus,1785) in the Anzali wetland

The hematological parameters and effect parasite infection of the pike، Esox lucius، obtained from Anzali wetland، between October 2010 and Septamber 2011. A total of 120 specimens were carried out randomly from commercial fishing. Biometry، blood taking and age determination was performed respectively in the Anzali aquaculture research center of inner waters. The hematological parameters were examined by experimental and handy methods. After autopsy، identification of the present isolated parasites were carried out by the parasites key identification. This study revealed only parasites like Eustrongylides exises، Tetraonchus monenteron، Diplostomum spathaceum، Corynosoma Strumosum، Rhipdocotyle illense، caused changes in some hematological parameters.