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After dam removal, Klamath restoration shows rapid habitat and fish recovery, researchers say
Summary
Restoration contractors and partners reported rapid ecological responses in the Klamath River following removal of four dams, including expanded temperature variability, extensive revegetation and early Chinook returns documented by eDNA and multiple monitoring methods.
Caitlin Boise, aquatic ecologist with Resource Environmental Solutions, told attendees that the Klamath River Renewal Project removed four dams and began large-scale restoration of more than 2,000 acres of former reservoir bed. Boise said restoration work — from revegetation to large‑wood placement and tributary earthwork — began before full drawdown and continued through 2024–25.
Boise described a comprehensive monitoring network established for the project: USGS telemetered stations and project-installed gauges providing near‑real‑time continuous data across more than 230 river miles, paired grab‑sample locations for suspended sediment and water‑chemistry sampling, and a large eDNA program designed as a “molecular time capsule.” She said the team collected…
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