General Information: Flavobacterium psychrophilum JIP02/86 (ATCC 49511) is a virulent strain. Flavobacterium psychrophilum cause cold water disease in salmon and trout. This bacterium causes septicemia in young fish (rainbow trout fry syndrome) and extensive lesions in adult fish. There is a high rate of mortality associated with these diseases with considerable economic impact for the aquaculture industry.