International Journal of Fisheries and Aquatic Research

Authors
Pralay Chatterjee

Abstract
On a recent times fish disease are creating alarming situation in fish production not only in India but worldwide also. Fish diseases are very much common in fresh and marine water. Fresh water fishes are very much essential source of protein, vitamins, minerals, macro and micro-nutrients for all mankind. The present study emphasis the several fish diseases in North Bengal region, Specially Jalpaiguri district, West Bengal, India. All fishes are carried pathogens further which may cause diseases. Fish disease is a main key which directly decreasing fish mortality rate in juvenile stage and create problem our fish diversity. Common fresh-water fish diseases are Tail -Fin rot, Dropsy, Exophthalmos, Mycobacteriosis, Pox infection, Folic-acid Deficiency etc. Because of water and arsenic pollution, a large amount of virus, bacteria and protozoa affect fish body. Now my present study highlights the definite causes of several fish diseases, their symptoms and control measure.