Abstract
One hundred sixteen isolates of Edwardsiella tarda were collected from the United States and Taiwan were biochemically characterized. This species is basically homogenous and has limited substrate utilization capacities. Taiwan isolates differ from the United States isolates in some respects (i.e. mannitol fermentation, motility, hydrogen sulfide production, gas production, and chondroitin sulfate degradation) particulary when incubated at 42°C.
