Characteristics of Zooplankton in Syamozero Lake (South Karelia) Based on the Results of Long-Term Monitoring

The results of long-term studies on zooplankton from Syamozero Lake, South Karelia, have been analyzed. The relationship between the quantitative indices of the zooplankton community and the value and dynamics of the biogenic load on the lake is established. The redistribution of the ratio of the major groups and dominant zooplankton species, the decrease in the Shannon diversity index, the increase in the Mäemets trophic state index, and with the increase in the abundance of indicator species of higher nutrient supply have been determined. The effect of anthropogenic factors on the population characteristics of the zooplankton community and changes in the trophic status of the lake with a high resource potential have been found.