Digenean Trematode Parasites and Cyprinid Fish Catla catla

Cyprinid fish Catla catla is a major carp fish of the water bodies of Jaunpur Uttar Pradesh. It has a great economical value in freshwater fish in India. They are mid water feeder. Catla catla is a important fish of polyculture in the ponds. Some time they suffered with helminth infections which damage their outer and inner body parts. In which trematode parasites are major part of helminth infection. In our investigation we were trying to known the burden of digenetic trematode parasites in fresh water fish Catla catla. These are commonly known as Bhakur. The infection deteriorate fish quality and quantity. We use ecological parameters to know the burden of infection monthly as well as seasonally.390 fishes were examined. Total 98 were found infected.