Figure 2.

Physical characteristics and measures of anthropogenic impacts compared between basins of the West Coast (see Table 3) that are accessible (white rectangles) to anadromous salmonids with those that are no longer accessible (gray rectangles). All values shown are medians with error bars depicting 95% confidence intervals. Statistical tests were conducted for some characteristics on transformed variables and were significant for each of the comparisons shown (P < 0.05).