Figure 5

Box-plots depicting pre- (white) and post-dam (grey) comparisons of (a) electrical conductivity (EC); (b) pH; (c) turbidity; (d) total phosphorus (total P); and (e) dissolved inorganic carbon (DIC) concentrations. The graphs in the first column are for the five mainstem stations and the graphs in the second column depict results for the five stations in the back-flooded valleys of the tributaries. The red stars indicate significant differences between pre- and post-dam periods (p < 0.05). The horizontal line inside the box indicates the median and the boundaries indicate the 25th and 75th percentiles. Outliers are not shown for improved visualization.