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<br />
<br />186. Cross, J. N. 1975. Ecological distribution of the fishes of the Virgin River (Utah,
<br />Arizona, Nevada). M. S. Thesis, Univ. Nevada, Las Vegas. 187 pp.
<br />
<br />ABUNDANCE, DISTRIBUTION, ECOLOGY, FISH, FOOD HABITS, HISTORY, WATER QUALITY
<br />
<br />Details the distribution of native and introduced fishes in the Virgin River System of the
<br />Lower Colorado River Basin. The ecological information is pertinent to some of the
<br />fishes in the upper basin.
<br />
<br />187. Cruff, R. W. 1975. Estimating streamflow in the Duchesne River Basin, Utah. Utah Dep.
<br />Nat. Resour. Tech. Pub. 48. 18 PP.+ plates.
<br />
<br />HYDROLOGY, RIVER-Duchesne, STREAMFLOW
<br />
<br />Monthly, annual, and long-term mean streamflows were estimated for streams in the
<br />Duchesne River basin on the basis of monthly measurements attempted at 44 sites in the
<br />basin during the 1971 and 1972 water years.
<br />
<br />188. Datsen, P. 1960. Notes on diseases, parasites, food, and condition of Green River fishes,
<br />1959. Pages 169-175 (Appendix B) in A. M. Woodbury, ed. Ecological studies of the
<br />flora and fauna of Flaming Gorge Reservoir Basin, Utah and Wyoming. Univ. Utah
<br />Anthropol. Pap. 48, Upper Colo. River Basin Ser. 3. 243 pp.
<br />
<br />ECOLOGY, FISH, FOOD HABITS, RIVER-Green
<br />
<br />Discusses the diseases and parasites of fishes in the Green River during summer 1959.
<br />Flannelmouth and bluehead suckers seemed to be more susceptible to diseases than other
<br />fish in the system. Industrial pollution from Green River, Wyoming, is suggested as a
<br />possible cause.
<br />
<br />189. Davis, G. H., and L. A. Wood. 1974. Water demands for expanding energy development.
<br />U. S. Geol. Surv. Circ. 703. 14 pp.
<br />
<br />ENERGY, WATER QUANTITY
<br />
<br />Summarizes the consumptive demand for water in various energy processes. West of the
<br />100th meridian, runoff is generally less than potential diversions. Therefore, energy
<br />industries must compete with other water users. Water demands for extraction of coal,
<br />oil shale, uranium, oil, and gas are modest, although large quantities of water are used
<br />in secondary recovery operations for oil.
<br />
<br />190. Deacon, J. E. 1968. Endangered non-game fishes of the West: causes, prospects and
<br />importance. Proc. Annu. Conf. West. Assoc. State Game Fish Comm. 48: 534-549.
<br />
<br />ABUNDANCE, ALTERATION, DISTRIBUTION, ECOLOGY, FISH-rare, HISTORY, MANAGEMENT
<br />
<br />Summarizes the current status of the fishes occurring west of the Rocky Mountains in North
<br />America, including some found in the upper Colorado River basin. Fifty-five taxa in this"
<br />area are extinct, rare, endangered, or of unknown status.
<br />
<br />191. Deacon, J. E., and W. G. Bradley. 1972. Ecological distribution of fishes of Moapa
<br />(Muddy) River in Clark County, Nevada. Trans. Am. Fish. Soc. 101(3): 408-419.
<br />
<br />DISTRIBUTION, ECOLOGY, FISH
<br />
<br />Distribution of the fishes of the Moapa River, originally a tributary that ente~ed the
<br />Virgin River a short distance from its confluence with the Colorado River. This river now
<br />enters Lake Mead. Documents the decline of the native roundtail chub (Gila robusta) that
<br />resulted from the introduction of exotic species. Offers parasitism as-on; mechanism for
<br />decline of this chub, since an increased incidence of parasitism occurred after
<br />establishment of exotic species. This mechanism could also be a cause for the decline of
<br />endemic species in the upper system.
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