Microbial flora of the gastro-intestinal tract of Clarias gariepinus caught from river Dandaru Ibadan, Nigeria

The study reports the microbial load and diversity in the gastro-intestinal tract of Clarias gariepinus caught in River Dandaru, Ibadan. A set of adult samples of Clarias gariepinus was caught from the river Dandaru, Ibadan. Determination of microbial loads and characterization of microorganisms present in the gut region of the captured Clarias gariepinus were carried out using standard microbiological procedures. The fungi isolated were Aspergillus niger, Aspergillus flavus, Penicillium atrovenetum and Penicillium expansum while the bacteria isolated were Pseudomonas fluorescens, Bacillus alvei, Aeromonas hydrophilia, Bacillus megaterium, Flavobacterium rigense and Enterobacter aerogenes. The microbial counts were; total plate count 6.5 x 10^5 CFUs/g, total coliform count 1.9 x10^4 CFUs/g, total anaerobic count 4.2 x 102 CFUs/g, total faecal coliform count was 2.2 x 10^3 CFU/ml, total fungi count 3.0 x 10^3 spore/g.