Eight marine fish species were obtained from two nearby wet markets (Sungei Besi and Kajang). The fish were analysed for total viable counts, coliforms,V'Yo parahaemolyticus and histamine-producing bacteria. Total viable count was determined usingPlate Count Agar; coliforms using McConkey Broth;Vibrio parahaemolyticus by TCBS agar and histamine-producing bacteria were determined usingNiven 's media. The total counts on all fish from both markets ranged from l(fto l(f per gram offish, coliforms ranged from l(f to 105 per gram, and all the fish examined were positive for both Vibrio parahaemolyticus and histamine-producing bacteria.