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Kashulin, N. A., et al. Months % S- S n o О M onths Months □ - Mean, o - ±SE, I - ±SD, o- Outliers, * - Extremes Fig. 8. Seasonal dynamics of Cu concentrations (mkg/g dryweight) in liver, kidneys and gills of whitefish in Lake Chuna % s- S 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1,0 0,5 0,0 -0,5 XI XII IV VI Months Months □ - Mean, □- ±SE, I - ±SD, o- Outliers, *- Extremes Fig. 9. Seasonal dynamics of the Ni concentrations (mkg/g dryweight) in liver, kidneys and gills of whitefish in Lake Chuna 120