Beamer Yearling Chinook Habitat Study 2010
Eric Beamer, Jon-Paul Shannahan, Karen Wolf, Erin Lowery, David Pflug
This study is needed to better understand the causes of decline for two ESA listed
salmonid species that have at least a portion of their juvenile population exhibiting a
stream type life history: Chinook (Oncorhynchus tshawytscha) and steelhead (O. mykiss).
The study’s purpose is to identify seasonal and habitat type preferences in freshwater
habitat in the Skagit River basin by answering the following questions:
1. What habitat types are used by fish seasonally?
2. Where are fish located within the basin seasonally?
3. Where are habitats (by type) within the basin?