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Wildlife agencies will reintroduce bull trout to Clackamas River

River conditions have improved for the endangered species

Federal and state wildlife agencies will reintroduce bull trout into the Clackamas River next month.

The bull trout population in the river was wiped out nearly 50 years ago, and the species has been listed under the Endangered Species Act since 1999.

Bull trout of various life stages are being moved from the Metolius River, and will be reintroduced into the upper Clackamas near its confluence with the Collawash River, in Mt. Hood National Forest. It's the start of an experimental project that's expected to last seven to 15 years, with a goal of establishing a sustainable population of 300 to 500 spawning adult bull trout within 20 years.

The project is being undertaken by the U.S. Fish and Wildlife Service and Oregon Department of Fish and Wildlife.

The Clackamas recovery project was chosen because the factors that caused bull trout to disappear have been remedied, including fish passage facilities at dams, biologists say.