Graphical summary of the variations of in-stream habitat structure and riparian conditions of the sampling sites in the Langueyú stream (U = urban, C = cropland, L = livestock, N = natural grassland). Increasing numbers and darkness used as an ordinal code for ease the interpretation of average sediment column depth. In riparian condition, the larger the dashed line, the lower the bank stability. Pie and bar charts of microhabitats and substrate composition respectively, present actual percentage values.