Fintrol-5 was experimentally tested in six isolated gold dredge ponds in Sumpter Valley. The tests revealed all coarse fish in treated ponds were killed in a period varying between 7 hours and 144 hours; toxic water subbing from treated ponds would kill fish in downstream ponds if water table dillution...
The Opossum shrimp Mysis relicta were collected in Upper Waterton Lake, Alberta, Canada in late August and early September 1965. Approximately 320,000 shrimp were introduced into Waldo, Wallowa, Big Cultus and Timothy Lakes in Oregon.
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...