AQUATIC FUNGI OF THE COASTAL REGION OF LAKE LADOGA

Iofina Irina Victorovna

Aquatic fungi represent a widespread group of hydrobionts and are natural components of aquatic biocenoses. At the coastal region of Lake Ladoga, 35 species of micromycetes belonging to 4 divisions Oomyceta, Chytridiomyceta, Zygomycota and Ascomycota (anamorphic genera) were isolated. The most common species belonged to the genera Olpidium, Penicillium, Candida, Rhodotorula, and the highest frequency of occurrence was also noted for representatives of these genera. At the observing stations located closer to the coast, the number of species and frequency of occurrence of opportunistic fungi (potentially pathogenic) increased. Cases of parasitism of aquatic micromycetes on planktonic algae and fungi have been established.

Keywords:aquatic fungi, number of micromycetes, coastal region of Lake Ladoga