Scientific publications

The paper presents the results obtained within the Russian-Finnish project "Assessment of the ecological status of a transboundary waterbody" from the Russian part of Lake Pyhajarvi in 1991–2004. It is shown that owing to its geochemical features, Lake Pyhajarvi is a nature object unique for Republic of Karelia. In total phosphorus content, the lake approaches the mesotrophic status. In terms of biological parameters – taxonomic composition, abundance and biomass of zooplankton and macrobenthos, the Russian part of the lake, where human impact is minor, now belongs to the oligotrophic type.