Abstract
This study was conducted to determine the influence of sex and weight on intestinal bacteria of wild Clariasgariepinusfrom River Rima Sokoto North western Nigeria. Twenty (20) samples of C.gariepinus were used and were grouped into two groups; ≤100g as juvenile and ≥100 as adults, and this give rise to 9 and 11 juveniles and adults respectively.The bacteria isolated, were investigated using standard microbiological procedures which includes; gram staining, microscopic examination and biochemical tests.Twelve (12) bacteria species were isolated from the sampled fishviz; Aeromonashydrophila, Bacillus cereus, Bacillus pasterii, Bacillus pantothenticus, Bacillus subtilis, Bacillus megaterium, Enterococcus faecalis, Escherichia coli, Micrococcus luteus, Shigellaflexnerii, Sporosarcinaureae and Staphylococcus aureusfrom both female and male of C. gariepinus. And the most dominant species of the isolated bacteria is Bacillus species. The study further revealed that, different fish body weights had no effect on intestinal bacteria of the species of fish, however, difference was observed among bacteria community composition between the sexes.
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