STUDY OF BACTERIAL PATHOGENS ASSOCIATED WITH LABEO CALBASU IN MARATHWADA, MAHARASHTRA: IMPLICATIONS FOR ENVIRONMENTAL FACTORS ON PSEUDOMONAS SP.GROWTH"

Abstract

In this study, an extensive survey was conducted to evaluate the presence of diverse bacterial pathogens in Labeo calbasu specimens sourced from various water bodies and fish landing centers across all eight districts of the Marathwada region in Maharashtra. Samples exhibiting visible symptoms were collected for analysis.

A screening process revealed the isolation of thirteen pathogenic bacteria from the fish samples, encompassing Aeromonas sp., Bacillus sp., E.coli ,  Enterobacteria sp.,  Flavobacterium sp., Lactobacillus sp., Micrococcus sp., Proteus sp., Pseudomonas sp. Salmonella sp., Shigella sp.,  Staphylococcus sp.,  Streptococcus sp., and Vibrio sp.These bacteria were identified based on their specific growth characteristics on culture media. Notably, Pseudomonas sp. emerged as the most prevalent among the isolated pathogens.

Further investigation delved into examining the influence of environmental factors—such as pH, temperature, and salinity—on the growth of Pseudomonas sp.The findings highlighted that optimal growth for this pathogen occurred at pH levels between 7 and 8, temperatures ranging from 27 to 37°C, and a salinity range of 0.1% to 0.5%.

This study sheds light on the presence of various bacterial pathogens in Labeo calbasu and underscores the impact of environmental factors on the growth patterns of specific pathogens, particularly highlighting the optimal conditions for Pseudomonas sp. proliferation."

Keywords: Labeo calbasu, Pseudomonas sp. Marathwada region.