Scores for each reach on CC1 and CC2 were the weighted mean species scores. Waters at these reaches had lower than average residue, specific conductivity, and hardness. Reaches in the Pelican and Otter Tail Rivers had much higher than average annual and May low discharges and lower than average CV of mean monthly discharge. Figure 22 . Canonical correspondence analysis ordination of reaches in the North Central Hardwoods ecoregion of the Red River basin.
Points represent the weighted mean species scores for each reach.
Waters of these reaches had slightly higher than average residue, specific conductivity, and hardness. Reaches in the Maple and Forest Rivers had much higher than average CV of mean monthly discharge and much lower than average annual and May low discharges. Figure 23 . Canonical correspondence analysis ordination of reaches in the Northern Glaciated Plains ecoregion of the Red River basin. Points represent the weighted mean species scores for each reach.