|
<br />Hamilton
<br />
<br />USEPA (U .S. Environmental Protection Agency). 1987a. Ambient water quality criteria
<br />for selenium - 1987. Office of Water Regulations and Standards, Washington, DC.
<br />EP A-440/ 5-87-006.
<br />USEPA (U.S. Environmental Protection Agency). 1987b. National pollutant discharge
<br />elimination system. Clean Water Act 402, 155.
<br />USFWS (U.S. Fish and Wildlife Service). 1980. Determination that the bonytail chub
<br />(Gila elegans) is an endangered species. Fed. &g. 45, 27710-27713.
<br />USFWS (U.S. Fish and Wildlife Service). 1987. Recovery implementation program for
<br />endangered fish species in the upper Colorado River basin. U.S. Fish and Wildlife
<br />Service, Denver, CO.
<br />USFWS (U.S. Fish and Wildlife Service). 1991a. Endangered and threatened wildlife
<br />and plants; the razorback sucker (Xyrauchen texanus) determined to be an endan-
<br />gered species. Fed. Reg. 56, 54957-54967.
<br />USFWS (U.S. Fish and Wildlife Service). 1991b. Endangered and threatened wildlife
<br />and plants; animal candidate review for listing as endangered or threatened species,
<br />proposed rule. Fed. Reg. 56, 58804-58836.
<br />Valdez, R., Mangan, P., Smith, R., and Nilson, B. 1982. Upper Colorado River investi-
<br />gation (Rifle, Colorado to Lake Powell, Utah). In: Colorado lliverFish4ry Project Final
<br />R.epurtFitld Investigations Pa112, pp. 100-279. U.S. Fish and Wildlife Service. Salt Lake
<br />City, UT.
<br />Valdez, R. A., Masslich, W.]., and Wasowicl, A. 1992. Dolores River native fish habitat
<br />suitability study. Utah Division of Wildlife Resources, Salt Lake City. Final Report
<br />No. TR-272-02.
<br />Vencil, B. 1986. The migratory bird treaty act - protecting wildlife on our national
<br />refuges- California's Kesterson Reservoir, a case in point. Nat. Resources] 26, 609-
<br />627.
<br />Waddell, B. and May, T. 1995. Selenium concentrations in the razorback sucker
<br />(Xyrauchen texanus): substitution of non-lethal muscle plugs for muscle tissue in
<br />contaminant assessment. Arch. Environ. Contam. Toxicol. 28, 321-326.
<br />Waddell, B. and Wiens, C. 1993. Reconnaissance study of trace elements in water,
<br />sediment, and biota of Lake Powell. U.S. Fish and Wildlife Service, Salt Lake City,
<br />UT. Interim Report.
<br />Walsh, D. F., Berger, B. L., and Bean,]. R. 1977. Residues in fish, wildlife, and estuaries:
<br />mercury, arsenic, lead, cadmium, and selenium residues in fish, 1971-73 - national
<br />pesticide monitoring program. Pest. Manit.]. 11, 5-34.
<br />Welsh, D. 1992. Selenium in aquatic habitats at Cibola National Wildlife Refuge.
<br />Doctoral dissertation, University of Arizona, Tucson.
<br />Welsh, D., and Maughan, O. E. 1994. Concentrations of selenium in biota, sediments,
<br />and water at Cibola National Wildlife Refuge. Arch. Environ. Contam. Toxicol. 26, 452-
<br />458.
<br />Williams, K. T., and Byers, H. G. 1935. Occurrence of selenium in the Colorado River
<br />and some of its tributaries. Indus. Engineer. Chern. 7, 431-432.
<br />Wlltzius, W.]. 1978. Some factors historically affecting the distribution and abundance
<br />of fishes in the Gunnison River. Fishery Investigations of the Lower Gunnison River
<br />Drainage, Colorado Division of Wildlife, Fort Collins, CO. Final Report.
<br />
<br />1180
<br />
<br />Hum. Ecol. Risk Assess. Vol. 5, No.6. 1999
<br />
|