| atypical piscine mycobacteriosis in japanese medaka (oryzias latipes). | japanese medaka, (oryzias latipes), small, freshwater, tropical cyprinodonts, are principally used for toxicologic and carcinogenicity assays, but are finding more applications in developmental genetic and biological research. an increase in mortality began in brood stock of adult medaka that had been shipped and housed separately by sex. initially, mortality averaged one fish daily and began in females two weeks after they were received. cohabitation began eight weeks after arrival. after four ... | 2001 | 11922182 |