Aerobic Bacteria Associated With Spoiled Freshwater Fish

Abstract

The present work was carried out to detennine the aerobic bacteria present in different fish samples. Samples were collected randomly from EI Mawreda fish matket (Umdurman) and Khartoum Centtal.Market. (Khartoum) A total of 105 fish samples consisting of 21fresh fish meat 21 putrefied meat, 21 skins, 21. gills and 2.1 intestines were examined. A1l sampleswere cultured aerobically. One hundred and thirty six ( 67.6 % ) Gram-negative and 65 ) 32.3 (% Gram-positive bacteria were identified. The Gram negative bacteria belonged to the genera Protsust Citrobacter,Serratia, Klebsiella. Pseudomonas, Escherichia co.li. Vibrioand Aermomonas. The Grampositive bacteria belonged tothe genera Staphylococcus Corynebacterium. Bacillus, Kurthia and Micrococcus.: The main sources of fish contamination appeared to be water, hands end and equipment of fishermen