Occurrence of Infectious Aeromonas and Pseudomonas Bacteria in Clarias Gariepinus From Adamawa State, Nigeria

In the recent time, the production of fish and fishery products in the country is witnessing more involvement both from the government and the people although bacterial infection has been one of the major constraints to achieving the sustainable production from aquaculture. Based on this fact, this study was conducted to evaluate the occurrence of infectious aeromonads and pseudomonads in Clarias gariepinus from Adamawa state, Nigeria. C. gariepinus samples were collected from three lakes and three fish farms within the Upper Benue Valley Area of Adamawa State during dry and wet season. Tissue samples were taken from the fish samples for bacteriological examinations. Data collected were analyzed using descriptive statistics and Chi-square. The results showed that 42.86% of the sampled C. gariepinus with bacterial occurrence were positive for A. hydrophila, 28.57% for A. sobria and 28.57% were positive for Ps. fluorescens. The present study revealed that seasons and collection sites played a significant role in determining the occurrence of bacteria in fish and that pathogenic bacteria are present in C. gariepinus without causing any symptomatic effect on the fish.