Miller Lake was chemically treated with toxaphene on September 16, 1958 to destroy a population of parasitic lamprey (E.tridentatus) and Tui Chub (Siphatelep bicolor). Toxaphene was applied at the rate of 0.04 ppm. No lamprey or fish have been collected in the lake since the chemical treatment. Work since 1959...
The project objectives were to determine the possibility of raising the subterranean water in adequate amounts by installation of an underground weir; to determine what type of structure would be most feasible; and to formulate a biological evaluation program if the first two objectives were accomplished. Tex Creek, tributary to...
Clear Creek, tributary of North Fork John Day River, is a mountain stream located in the Blue Mountains of eastern Oregon. It joins Granite Creek about 1.5 miles below the old abandoned mining town of Granite. Gravel removed from Clear Creek by gold dredging activity was replaced in a 3.37-mile...
The following projects were completed between July 1, 1965, and June 30, 1966, under the stream clearance segment of the State-wide Stream Improvement Program. The larger segments were initiated by requesting competitive bids with the contract for logjam removal awarded to the lowest acceptable bid. The smaller projects were undertaken...
Unity Reservoir in Baker County, Oregon, was chemically treated with liquid rotenone on October 17, 1962. Approximately 136 miles of streams and diversion ditches and seven small ponds, tributary to the reservoir, were treated with liquid rotenone prior to work on the reservoir. The reservoir at time of treatment contained...
Big Lava Lake in Deschutes County, Oregon, was chemically treated September 19, 1963, to eliminate a population of roach and white fish. An estimated kill in excess of 400,000 fish resulted from the application of 4,620 gallons of liquid rotenone (Pro-Noxfish) at a toxicity of 2.0 ppm. Live -boxed brook...
Upper Cow Lake located in Malheur County, Oregon, Township 28 South, Range 44 East, Section 29, was chemically treated with 2,325 gallons of liquid synergized rotenone (Pro-noxfish) on September 11, 1963 to remove an abundant population of rough fish. The lake has a maximum surface area of 975 acres and...
Rehabilitation of Bully Creek Reservoir, its tributaries, and segments of the Malheur River system was completed in 1963. All waters treated supported large populations of undesirable fish. The treatment procedures are discussed by project segment within the report. A portion of the funds was appropriated by the U. S. Bureau...
Opossum shrimp, Mysis relicta Loven, were collected at Upper Waterton Lake, Alberta, Canada in the summer of 1967, terminating a three-year project. Approximately 1,090,000 Mysis were transplanted into Big Cultus, Crescent, Detroit, Fourmile, Ice, Miller, Odell, Olive, Timothy, Waldo, and Wallowa Lakes in an attempt to enhance the quantity of...
The construction of Illinois Falls fish ladder on the Illinois River in Oregon was completed in November 1961. The ladder was opened and operated during the winter of 1961-62. Final cleanup and rock removal was completed in the fall of 1962. The ladder was installed on a natural barrier where...