Long-Term Dynamics of Macrozoobentos and Plant Pigments in Bottom Sedimentsof the Rybinsk Reservoir
The long-term dynamics of macrozoobenthos and concentrations of plant pigments in silts of riverine reach of the reservoir for the period of 1947–2015 are analyzed. It is revealed that the abundance of macrozoobenthos and the content of sedimentary pigments have significantly increased in recent years. In the temporal aspect, the statistically significant relationships of the sum content of chlorophyll a and its degradation products with abundance and biomass of total macrozoobenthos, biomass of chironomids, abundance of oligochaetes and the saprobity index are established. It is found that the trophy of Rybinsk reservoir has increased in current conditions.