Additional files [RJEE Vol. 5 (3). 2020 – 1]

• Fig. 1. Map of the study area. The location of stations on the Samara River
• Fig. 2. Changes in the density and biomass of V. (V.) viviparus in the Samara river
• Fig. 3. Scattering diagram for the relationship between density+biomass (D+B) of V. (V.) viviparus and temperature (T) water in the Samara river with confidence intervals
• Fig. 4. Diagram of the relationship between environmental factors and quantitative indicators of the V. (V.) viviparus mollusk in the Samara river (vectors: V – current velocity, H – depth, M – macrophyte area, TDS – mineralization, pH – hydrogen index, T – temperature, O2 – dissolved O2, G – soil type, WT – transparency, B – width)