OAR 635-500-1220. Trout and Whitefish

(1) The following operating principle applies to the Main Stem Willamette Subbasin: No hatchery-produced resident trout shall be released in the mainstem Willamette River. (2) In accordance with this operating principle, it is the objective of the Department to: (a) Maintain the genetic diversity and adaptiveness of wild trout and whitefish populations; (b) Protect and restore wild trout and whitefish habitat; (c) Minimize the potentially negative effects of hatchery fish on the production and genetic integrity of wild trout and whitefish; (d) Provide angling opportunities for trout and whitefish under the basic yield Management alternative for trout (Oregon Department of Fish and Wildlife 1987).