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• 1. [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

• 2. [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

• 3. [Article] Habitat Improvement Project, No. 22

  "The objective of the reservoir research project is to gather and assemble data concerning the game and rough fish populations in Round Butte, Prineville, and Ochoco Reservoirs to enable efficient management ...

  Citation × Citation Citation Abstract Copy Title: Habitat Improvement Project, No. 22 Author: Herrig, Richard G., Oregon. State Game Commission. Fishery Division "The objective of the reservoir research project is to gather and assemble data concerning the game and rough fish populations in Round Butte, Prineville, and Ochoco Reservoirs to enable efficient management of the fisheries. The project has been divided into three different jobs: 'Importance of size and race of stocked rainbow trout in reservoir production'; 'Reservoir fish population inventory'; and 'Limnology, water quality and productivity studies of reservoirs' (From Objectives Section of Abstract) Title: Habitat Improvement Project, No. 22 Author: Herrig, Richard G., Oregon. State Game Commission. Fishery Division "The objective of the reservoir research project is to gather and assemble data concerning the game and rough fish populations in Round Butte, Prineville, and Ochoco Reservoirs to enable efficient management of the fisheries. The project has been divided into three different jobs: 'Importance of size and race of stocked rainbow trout in reservoir production'; 'Reservoir fish population inventory'; and 'Limnology, water quality and productivity studies of reservoirs' (From Objectives Section of Abstract) Close

• 4. [Article] Habitat Improvement Project, No. 4

  "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 ...

  Citation × Citation Citation Abstract Copy Title: Habitat Improvement Project, No. 4 Author: Oregon. State Game Commission. Fishery Division, Sayre, Robert C., Borovicka, Robert L. "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 1,700 acre-feet of water and covered 320 acres. A total of 700 gallons of liquid synergized rotenone was used on the tributary system and 850 gallons in the impoundment...Chemical tests of water were made to determine rotenone content...The reservoir was restocked with rainbow trout...A successful sport fishery developed in the fall of 1963 for 6 to 10-inch rainbow trout." (Abstract from Author) Title: Habitat Improvement Project, No. 4 Author: Oregon. State Game Commission. Fishery Division, Sayre, Robert C., Borovicka, Robert L. "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 1,700 acre-feet of water and covered 320 acres. A total of 700 gallons of liquid synergized rotenone was used on the tributary system and 850 gallons in the impoundment...Chemical tests of water were made to determine rotenone content...The reservoir was restocked with rainbow trout...A successful sport fishery developed in the fall of 1963 for 6 to 10-inch rainbow trout." (Abstract from Author) Close

• 5. [Article] Habitat Improvement Project, No. 3

  "Malheur Reservoir located in Malheur County, Oregon, was chemically treated with liquid rotenone on October 11, 1962 to eliminate an abundant population of black crappie and a smaller population of fine ...

  Citation × Citation Citation Abstract Copy Title: Habitat Improvement Project, No. 3 Author: Oregon. State Game Commission. Fishery Division, Bisbee, Lawrence E. "Malheur Reservoir located in Malheur County, Oregon, was chemically treated with liquid rotenone on October 11, 1962 to eliminate an abundant population of black crappie and a smaller population of fine scale suckers and redside shiners. Tests for toxicity indicated the reservoir had detoxified prior to December I, 1962. A progress report outlining the actual chemical treatment was distributed as Habitat Improvement Project, Fishery Division, Oregon State Game Commission, Number 1. The reservoir was restocked in 1963 with 270,845 rainbow trout fingerling weighing 1,363 pounds. A fishery developed by late July and continued until the end of the trout season on October 31, 1963. It was estimated that a total of 2,300 anglers fished the reservoir in 1963. Fish population studies were conducted and some problem areas were re-treated with rotenone." (Abstract from Author) Title: Habitat Improvement Project, No. 3 Author: Oregon. State Game Commission. Fishery Division, Bisbee, Lawrence E. "Malheur Reservoir located in Malheur County, Oregon, was chemically treated with liquid rotenone on October 11, 1962 to eliminate an abundant population of black crappie and a smaller population of fine scale suckers and redside shiners. Tests for toxicity indicated the reservoir had detoxified prior to December I, 1962. A progress report outlining the actual chemical treatment was distributed as Habitat Improvement Project, Fishery Division, Oregon State Game Commission, Number 1. The reservoir was restocked in 1963 with 270,845 rainbow trout fingerling weighing 1,363 pounds. A fishery developed by late July and continued until the end of the trout season on October 31, 1963. It was estimated that a total of 2,300 anglers fished the reservoir in 1963. Fish population studies were conducted and some problem areas were re-treated with rotenone." (Abstract from Author) Close

• 6. [Article] Habitat Improvement Project, No. 25

  In earlier years, the lower Owyhee River provided excellent trout angling. In recent years, the fishery had declined to one maintained with the annual stocking of legal size hatchery trout on a put and ...

  Citation × Citation Citation Abstract Copy Title: Habitat Improvement Project, No. 25 Author: Oregon. State Game Commission. Fishery Division, Bisbee, Lawrence E. In earlier years, the lower Owyhee River provided excellent trout angling. In recent years, the fishery had declined to one maintained with the annual stocking of legal size hatchery trout on a put and take basis. Stream surveys completed in 1966 indicated the 16 1/2-mile section of the lower river lying between the Owyhee Reservoir dam and the old Owyhee diversion dam in Malheur County, Oregon, would lend itself to periodic rehabilitation and restocking annually with rainbow fingerling. Chemical treatment of this section of river was completed on March 18, 1967. A large population of bridgelip and coarsescale suckers, squawfish, chiselmouth, redside shiner, and carp were reduced. A kill estimated to be in excess of 63,000 fish resulted from the aerial application of 225 gallons of liquid pronox-fish by helicopter. Test fish confined in live boxes along with net sampling indicated an incomplete kill. Failure of the chemical to penetrate the deeper water and rapid detoxification were the primary causes for the incomplete kill. Detoxification at the old diversion dam was necessary to prevent destruction of warm-water game fish below. Rainbow fingerling totaling 97,642 were restocked in mid-April and 5,072 legal size rainbow were planted in late May 1967. Fingerling began entering the catch in August. Angler success was excellent. Title: Habitat Improvement Project, No. 25 Author: Oregon. State Game Commission. Fishery Division, Bisbee, Lawrence E. In earlier years, the lower Owyhee River provided excellent trout angling. In recent years, the fishery had declined to one maintained with the annual stocking of legal size hatchery trout on a put and take basis. Stream surveys completed in 1966 indicated the 16 1/2-mile section of the lower river lying between the Owyhee Reservoir dam and the old Owyhee diversion dam in Malheur County, Oregon, would lend itself to periodic rehabilitation and restocking annually with rainbow fingerling. Chemical treatment of this section of river was completed on March 18, 1967. A large population of bridgelip and coarsescale suckers, squawfish, chiselmouth, redside shiner, and carp were reduced. A kill estimated to be in excess of 63,000 fish resulted from the aerial application of 225 gallons of liquid pronox-fish by helicopter. Test fish confined in live boxes along with net sampling indicated an incomplete kill. Failure of the chemical to penetrate the deeper water and rapid detoxification were the primary causes for the incomplete kill. Detoxification at the old diversion dam was necessary to prevent destruction of warm-water game fish below. Rainbow fingerling totaling 97,642 were restocked in mid-April and 5,072 legal size rainbow were planted in late May 1967. Fingerling began entering the catch in August. Angler success was excellent. Close

• 7. [Article] Habitat Improvement Project, No. 8

  "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 ...

  Citation × Citation Citation Abstract Copy Title: Habitat Improvement Project, No. 8 Author: Oregon. State Game Commission. Fishery Division, Borovicka, Robert L., Gerlach, Arthur H. "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 has been in the form of testing the water for residual toxaphene and toxicity to trout. Materials and water were analyzed by Charlton Laboratories in Portland, Oregon by paper chromatography. The Agricultural Chemistry Department at Oregon State University conducted the majority of the analyses by gas chromatography. The detailed information on the chemical treatment was reported in a progress report February 13, 1959. Testing of Miller Lake will continue under Federal Aid Project No. F-20-D-20." (Abstract from Author) Title: Habitat Improvement Project, No. 8 Author: Oregon. State Game Commission. Fishery Division, Borovicka, Robert L., Gerlach, Arthur H. "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 has been in the form of testing the water for residual toxaphene and toxicity to trout. Materials and water were analyzed by Charlton Laboratories in Portland, Oregon by paper chromatography. The Agricultural Chemistry Department at Oregon State University conducted the majority of the analyses by gas chromatography. The detailed information on the chemical treatment was reported in a progress report February 13, 1959. Testing of Miller Lake will continue under Federal Aid Project No. F-20-D-20." (Abstract from Author) Close

• 8. [Article] Habitat Improvement Project, No. 6

  "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 ...

  Citation × Citation Citation Abstract Copy Title: Habitat Improvement Project, No. 6 Author: Oregon. State Game Commission. Fishery Division, Montgomery, Monty L., Bisbee, Lawrence E. "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 a volume of 7,150 acre-feet. Samples of fish killed after chemical treatment included coarsescale suckers 69.2 per cent, squawfish 24.5 per cent, redside shiners 3.0 per cent, black bullhead 2.0 per cent and bridgelip suckers 1.3 per cent. Chemical treatment of approximately 55 miles of tributary streams above Upper Cow Lake was completed in August and September, 1963. Twelve miles of tributary streams located in Idaho were treated by the Idaho Game Department personnel. Restocking of the lake with rainbow trout will begin in 1964. Very little of the tributary system is suitable for restocking of game fish." (Abstract from Author) Title: Habitat Improvement Project, No. 6 Author: Oregon. State Game Commission. Fishery Division, Montgomery, Monty L., Bisbee, Lawrence E. "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 a volume of 7,150 acre-feet. Samples of fish killed after chemical treatment included coarsescale suckers 69.2 per cent, squawfish 24.5 per cent, redside shiners 3.0 per cent, black bullhead 2.0 per cent and bridgelip suckers 1.3 per cent. Chemical treatment of approximately 55 miles of tributary streams above Upper Cow Lake was completed in August and September, 1963. Twelve miles of tributary streams located in Idaho were treated by the Idaho Game Department personnel. Restocking of the lake with rainbow trout will begin in 1964. Very little of the tributary system is suitable for restocking of game fish." (Abstract from Author) Close