Myxozoan Infestation in Freshwater Fishes in Wetlands and Aquaculture in Punjab (India)

摘要

This article reviews the work done on the myxozoan parasites infesting freshwater fishes in 3 wetlands of Punjab i.e. Harike, Kanjali, Ropar wetlands and also aquaculture fishes in Punjab. A recent study conducted by author and co-workers have reported many pathogenic species infesting aquaculture fishes in Punjab. A large number of important commercial fishes in natural and cultured habitat are vulnerable to various infestions, out of which myxozoans are emerging as the major group. Infestion rate has been recorded to be 34.71% in wetlands and 26.28% in aquaculture. Predominate genera are Myxobolus Buetschli, 1882 followed by Thelohanellus Kudo,1933 infesting gills, operculum, buccal cavity, nasal chamber, eye ball, skin of snout, fins, scale, gall bladder and wall of the alimentary canal. The present document provide the tabulated list of host and myxozoan parasites infesting carp and catfishes in wetlands and cultured ponds of Punjab, India. The most susceptible fish host has been recorded to be Labeo rohita infested with as many as 18 species of myxozoans followed by Cirrhinus mrigala (14 species), Catla catla (12 species), Labeo calbasu (11 species) and Cirrhinus reba (8 species). Fishes in Kanjali wetland have been found to be more infested (29.6%) in comparison to Harike wetland (24.4%) followed by Ropar wetland (20.4%).