Abstract

Water sample from Kengerilake (polluted) and Kommaghatta lake (fresh water) was collected to know their
water quality. Fishes (Glossogobius giuris and Labeo rohita) were collected from fresh water and polluted
water resp. The bacterial load in various tissues like skin, gills, intestine were analysed. The bacterial load in
polluted water fish tissues were comparatively higher. Maximum bacterial counts were seen in intestine
followed by gills and skin in both the analysed fishes. The bacterial genera Pseudomonas, Acientobacter,
Aeromonas, Enterobacteriaceae, Micrococcus, Bacillus, and Lactobacillus species were isolated. The findings
of this study confirm the moderate occurrence of organisms belonging to Enterobacteriaceae family in the fish;
therefore it should be monitored in epidemiological studies of human gastroenteritis causes considering the
public health significance. The antibiogram of the isolated bacteria was done, multiple antibiotic resistances
were observed in some isolated organisms.