Journal of Ecosystems / 2014 / Article / Tab 2 / Research Article
Associated Use Attainment Response between Multiple Aquatic Assemblage Indicators for Evaluating Catchment, Habitat, Water Quality, and Contaminants Table 2 Summary statistics for eight chemistry (concentration/ppm), habitat, and land use variables by macroinvertebrate grouping cluster (see Figure
2(b) ) in watersheds of the Big Oaks National Wildlife Refuge.
Variable Mean Min Max SD Cluster 1 — — — — — Barium 13 52.46 30.5 81.9 12.93 Fluoride 13 0.12 0.05 0.2 0.06 Lead 13 0.19 0.1 1.31 0.34 Manganese 13 124.52 39.7 275 71.42 Sulfate 13 13.99 9.1 23 4.07 pH 13 8.13 7.44 9.5 0.59 QHEI score 13 58.23 50.5 70.5 5.23 Water land use 13 3.53 0.06 14.62 5.01 Cluster 2 — — — — — Barium 5 53.3 34.8 67 11.63 Fluoride 5 0.07 0.05 0.1 0.03 Lead 5 0.1 0.1 0.1 0 Manganese 5 67.12 31.7 130 41.7 Sulfate 5 15.6 12 20 3.29 pH 5 8.31 7.45 8.69 0.51 QHEI score 5 64.9 62.5 67.5 2.38 Water land use 5 2.99 0.41 6.25 2.79 Cluster 3 — — — — — Barium 5 79.6 56.7 124 27.59 Fluoride 5 0.19 0.05 0.3 0.09 Lead 5 1.27 0.1 3.13 1.29 Manganese 5 672 52 2500 1038.09 Sulfate 5 9.28 7.2 11 1.74 pH 5 7.67 7.14 7.9 0.31 QHEI score 5 56.6 25 67 17.81 Water land use 5 0.23 0 0.5 0.24 Cluster 4 — — — — — Barium 13 55.74 31.9 107 18.03 Fluoride 13 0.07 0.05 0.1 0.03 Lead 13 0.1 0.1 0.1 0 Manganese 13 104.31 25.7 265 63.09 Sulfate 13 11.69 5.2 18 3.98 pH 13 8.26 7.66 9.19 0.45 QHEI score 13 68.31 55 79 9.06 Water land use 13 2.84 0.48 5.8 2.07 Cluster 5 — — — — — Barium 7 90.43 47.2 158 43.26 Fluoride 7 0.14 0.05 0.2 0.07 Lead 7 0.67 0.1 2.96 1.1 Manganese 7 1352.21 99.5 6360 2322.74 Sulfate 7 22.8 6.9 45 14.67 pH 7 7.68 7.21 8.43 0.39 QHEI score 7 51.93 38 64 9.75 Water land use 7 0.57 0.13 1.23 0.41