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Paper Details

Study on Certain Fungal Diseases in Culturable and Non-Culturable Species of Fishes of Upper Lake, Bhopal

Rekha Chauhan

Journal Title:Journal of Chemical, Biological and physical sciences

Fungal diseases of fresh water fishes are known to be problematic disease. The aim of this study was to investigate the increasing aquatic fungal flora of the Upper Lake and the percentage of infection of various species in fishes. For this, investigation was carried out on fungal infected fishes from November 2011 to April 2012. A total number of 2066 fishes were examined. Out of them, about 287 fishes were found infected. The most affected species of fish were Clarias batrachus (24.6%). Total 13 species of fishes found infected from which 27 isolates have been found out, which belong to 8 genera and 14 species. Cultures were made on hempseeds, sesame and mustard seeds. Pure cultures were made on sabouraud dextrose agar, glucose yeast agar and potato dextrose agar. Identification of various species was done on the basis of their vegetative and reproductive characters. During investigation period, among all the eight genera, Achlya and Saprolegnia found most virulent. Maximum percentage of infected fishes fond in December (32.3%) followed by November (24.6%) and January (22.8%). Aspergillus niger and Fuzarium sp. were isolated first from fungal infected fishes of this region. To find out the pathogenecity of these species need further study.