Scientists have learned that particles from car tires are a leading culprit in salmon declines in the Pacific Northwest—and ...

A new study documents Putah Creek-origin salmon, meaning some salmon returning to the restored creek in the fall to spawn were actually born there. The study carries broader implications for other ...

This new study confirms that some salmon returning to Putah Creek in the fall to spawn are actually born there. This should not be news. Salmon are famous for their simple life cycle: Hatch in a ...

There's a tiny creek in Yreka that has a huge responsibility in the ecosystem. Christy Wheatley joins the Exchange to shed ...

Agricultural water diversions described as excessive by anglers led to warm river temperatures and low flows when baby salmon were trying to make it from their spawning beds to the ocean.