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• 1. [Article] Habitat Improvement Project, No. 5

  "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 ...

  Citation × Citation Citation Abstract Copy Title: Habitat Improvement Project, No. 5 Author: Oregon. State Game Commission. Fishery Division, Montgomery, Monty L., Griggs, James D. "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 trout were used to determine toxicity duration. Twenty-five trout live-boxed in five sets on October 14 were all alive when the live boxes were removed October 25. Brook trout, totaling 254,573, were stocked in Big Lava October 29 and 30, and November 6, 1964." (Abstract from Author) Title: Habitat Improvement Project, No. 5 Author: Oregon. State Game Commission. Fishery Division, Montgomery, Monty L., Griggs, James D. "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 trout were used to determine toxicity duration. Twenty-five trout live-boxed in five sets on October 14 were all alive when the live boxes were removed October 25. Brook trout, totaling 254,573, were stocked in Big Lava October 29 and 30, and November 6, 1964." (Abstract from Author) Close

• 2. [Article] Habitat Improvement Project, No. 18

  "South Twin Lake in Deschutes County, Oregon was chemically treated September 14, 1965, to eliminate a population of Tui Chub (Siphateles bicolor). A total of 605 gallons of liquid synergized rotenone ...

  Citation × Citation Citation Abstract Copy Title: Habitat Improvement Project, No. 18 Author: Oregon. State Game Commission. Fishery Division, Griggs, James D. "South Twin Lake in Deschutes County, Oregon was chemically treated September 14, 1965, to eliminate a population of Tui Chub (Siphateles bicolor). A total of 605 gallons of liquid synergized rotenone and 9,750 pounds of powdered rotenone was applied to the lake. It was estimated that 130,000 mature chub were killed. Only a small number of rainbow trout were found in the lake. Live-boxed rainbow were used to determine toxicity duration. Eight trout live-boxed in three sets fourteen days after treatment experienced no mortality after six days exposure to the lake water. Rainbow trout totaling 5,014 were stocked November 24, 1965." (Abstract From Author) Title: Habitat Improvement Project, No. 18 Author: Oregon. State Game Commission. Fishery Division, Griggs, James D. "South Twin Lake in Deschutes County, Oregon was chemically treated September 14, 1965, to eliminate a population of Tui Chub (Siphateles bicolor). A total of 605 gallons of liquid synergized rotenone and 9,750 pounds of powdered rotenone was applied to the lake. It was estimated that 130,000 mature chub were killed. Only a small number of rainbow trout were found in the lake. Live-boxed rainbow were used to determine toxicity duration. Eight trout live-boxed in three sets fourteen days after treatment experienced no mortality after six days exposure to the lake water. Rainbow trout totaling 5,014 were stocked November 24, 1965." (Abstract From Author) Close