Evidence item

The USGS publication record independently reproduces both upstream migration estimates and confidence intervals. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 17285

Source: Rewilding the upper Klamath River Basin: Rapid recolonization of Chinook salmon following the world’s largest dam removal · locator {} · excerpt hash sha256:1be74e5aef2c2d9d44bb1701c8ee0eeb951f9f4bdcc2cfcb629ddbd05b8b9b81

An estimated 7,742 (95% CI: 7,702–7,778) Chinook salmon migrated upstream in 2024 and 13,310 (95% CI: 12,876–13,733) in 2025, representing 18–19% of fish returning to the Klamath River Basin.