The Effect of the Hydrological Regime in the Rybinsk Reservoir on the Distribution and Dynamics of Benthic Cyclops

Data on the abundance, horizontal distribution, and the seasonal dynamics of the dominant species and the entire group Cyclopoida in the meiobenthos of the open littoral and profundal of the Rybinsk Reservoir are presented. The probability that the passive and active migrations of cyclops in the reservoir are controlled by the natural (transsedimentational activity of hydrodynamic processes) and human-induced factors (artificial water level control) is discussed.