There was no essential change in the ecological character of Lake Balaton according to the designation
criteria. There has been progress in improving water quality since the latest report. The status of
eutrophication level of the Keszthely Basin changed from hypertrophic to oligotrophic and the other part
of the lake was changed from the earlier eutrophic to mesotrophic or oligotrophic status. However, these
changes did not refer to the designation criteria. The lower water level ensured the spreading of reedbed
areas first of all toward the open waterbody. The quality of reed decreased but its area increased. Recently,
due to rainfalls the water level is higher than earlier, therefore, the increase of the reedbed area is
supposed to be halted