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57 <br />tributary, Bitter Creek, had unusually high conductivity (3180 uM OHS/cm) <br />and salinity (4.0%) compared to that of the river, 840 uM OHS/cm and 0.48% <br />respectively. Well drilling operations about 1 mi (1.6 km) upstream on <br />Bitter Creek may account for the high values. <br />Invertebrate Fauna <br />The marcoinvertebrate fauna was not surveyed during this study. Three <br />studies are available which describe in detail the benthic macroinvertebrate <br />community of the White River (Baumann et al., 1975; Hornig and Pollard, 1978; <br />VTN, 1977). Results of each study were similar in that the community was <br />relatively sparse in number and unequal in distribution. This was probably <br />due to the irregular flow patterns of the river which caused benthic habitat <br />to be highly unstable. Dipterians (Families Chironmidae and Simuliidae), <br />Ephemeropterans, and Pleeopterans dominated the fauna at most stations. Present <br />in less abundance were Odonates, Trichopterans, and Coleopterans. <br />CONCLUSIONS <br />The ichthyofauna of the White River was similar to other rivers in eastern <br />Utah. Red shiners were the more commonly found species (62.5%) followed by <br />roundtail chubs (11.2%), flannelmouth suckers (8.61/0), speckled dace (8.3%), <br />fathead minnows (5.5%), carp (2.6%), and channel catfish (.6%). Bluehead <br />suckers, black bullheads, green sunfish, and brown trout individually comprised <br />less than 0.50 of the total number of fish collected. Endemic fish in the <br />lower sections of the White River have been displaced by exotic fish, a pattern <br />similar to that found in other western rivers and streams. Native fish dom- <br />inated the fish fauna at 3 stations in the upper part of the White River and <br />exotic fish dominated the fauna at one station in the upper part of the White <br />River and all middle and lower stations.