Abstract
From the end of August to late in October 1983, an epizootic occurred among 60 colored carp Cyprinus carpio in a garden pond of a businessman in Mihara city, Hiroshima Prefecture. Affected fish exhibited hemorrhage and erythema on the body surface and fins. From the kidney, spleen and liver of moribund fish, Edwardsiella tarda was purely isolated, and the isolates were confirmed to cause mortality not only in carp but also in Japanese eel Anguilla japonica. This is the first recorded case of edwardsiellosis in carp.
