CRITTER CORNER SWIMMING UPSTREAM
Oct 01, 2021
2 minutes
by Pat Betteley
![facesus211001_article_006_01_01](https://article-imgs.scribdassets.com/9a28et1vi89153sd/images/fileE7UI8IXS.jpg)
Salmon are a keystone species in the Pacific Northwest. This means that other species depend on them, and the food web would change greatly if they became extinct. Salmon are a favorite catch for sport fishermen and an important food source for regional tribes.
Of the five U.S.
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