COMPARATIVE MICROBIAL INVESTIGATION ON SELECTED ORGANS IN FRESH WATER FISH Channa punctatus (Bloch, 1794) of PADITHURAI POND (MARIAMMAN KOVIL) AND COMMON POND (THIRUNAGESWARAM), THANJAVUR DISTRICT

In this study, we examined the microbial population in different parts, gill, muscles and intestine region of Channa punctatus from two different fish culture farm. Based on their growth characteristics on specific culture media, the following human bacterial pathogen such as Achromobacter xylosoxidans (Gram +ve), Acinetobacter anitratus (Gram -ve), Bacillus subtilis (Gram +ve), Proteus vulgaris (Gram –ve), Pseudomonas aeruginosa (Gram –ve) and Klebsiella pneumonia (Gram – ve), and fungal pathogens like Aspergillus niger, Aspergillus fumigatus, Aspergillus flavus, Aspergillus glaceus, Cunninghamella bertholetiae, Mucor sp. and Penicillium sp. were isolated. The fishes of different habitat were furthermore collected and examined for pathogens. However, There were six species of bacteria such as Achromobacter xylosoxidans (Gram +ve), Acinetobacter anitratus (Gram -ve), Bacillus subtilis (Gram +ve), Proteus vulgaris (Gram –ve), Pseudomonas aeruginosa (Gram –ve) and Klebsiella pneumonia (Gram – ve), exist in the gill region also in the muscles and intestine samples of sample 1 and sample 2. the fish organs contains seven species of fungal flora such as Aspergillus niger, Aspergillus fumigatus, Aspergillus flavus, Aspergillus glaceus, Cunninghamella bertholatiae, Penicillium sp and Mucor sp. were isolated from gill, muscles and intestinal sample of C. punctatus. This research highlights the quality of Channa punctatus in fish culture farm and to create awareness amid fish eating population.