Hazardous effect of Cd is
well recognized with Itai–Itai episode caused due to biomagnification of this metal along aquatic food chains(Giordana etal.,1991). Cdcausesimpairmentofreproductiveactivityanddisrupts
endocrine functioninfishpopulationexposedtoenvironmentally
relevant concentrationsofCd(Hatakeyma andYasuno,1981).