Over 4 years 1.241 fish were examined mycologically. In 182 (14,7 %) of the
m positive results were obtained. Most of the isolates belonged to the foll
owing genera: Cladosporium, Saprolegnia, Candida and Penicillium. Fungal in
fections were correlated with findings of Saprolegnia, Branchiomyces, Pythi
um, Ichtyophonus and sometimes Cladosporium. Most fungal isolates were etio
logicially irrelevant for diseases or death.