Portland Harbor Phase 3 Subyearling Chinook 2018 Field Observations
The Upper Willamette River (UWR) Chinook salmon Ecologically Significant Unit (ESU) includes naturally spawned Chinook salmon originating from the Clackamas River and from the Willamette River and its tributaries above Willamette Falls, as well as Chinook salmon from six artificial propagation programs. UWR Chinook …