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(1955) reported a complete fish kill in a Colorado reservoir (surface area of 40.5 ha) by using toxaphene at a rate of 0.1 mg/L. Some chemical-control projects have resulted in selective removal of species. Peters (1961) reported that 80% of the gizzard shad population was eliminated in a Texas lake (surface area not given) after treatment with 5% rotenone powder. Only a small percentage of other fish were killed. Dietz and Jurgens (1963) also reported that 76 kg/ha of gizzard shad and common carp was removed from a Texas lake (surface acres of 23.1 km2) by chemical treatment (rotenone at a concentration of 0.13 mg/L) with a minimal loss of gamefish. Antimycin was applied to a 1.9-ha pond in Wisconsin at a concentration of 10 gg/L. Common carp (as well as other species) were reduced, whereas channel catfish and black bullhead were not affected (Berger 1965). Although most chemical-reclamation projects have focused on small bodies of water and streams, large-scale chemical-reclamation projects have been attempted. In 1962, before Flaming Gorge Dam was closed, 716 km of the-Green River and it's tributaries were treated with 81,681 L ,of 5% rotenone. Fish were virtually eliminated following treatment, but by 1964, flannelmouth sucker, redside shiner, fathead minnow, and speckled dace had reached pretreatment distributions (Binns 1967). Chemical reclamation of Strawberry Valley was completed in 1990. The treatment involved applying 398,258 kg of powdered rotenone to Strawberry Reservoir (4,873 ha, 300,000 acre-ft) and 9,470 L 25