Seventeen years of diagnostics in fish bacteriology at the School of Veterinary Medicine Hanover. Experiences, results and practical advice. III. Identification and differentiation of Enterobacteriaceae, other oxidase negative bacteria, Cytophagaceae and more rarely isolated bacteria

The isolations of Yersinia ruckeri, Edwardsiella tarda and Edwardsiella ict aluri, Flexibacter columnar is, Flavobacterium psychrophilum, infrequently isolated mycobacteria and Renibacterium salmoninarum in relation to fish di seases are described. The importance of these bacteria and their microbiolo gical differentiation are described. Simple schemes for the diagnosis of ba cteria associated with fish diseases are presented.