Here’s what biologists say will happen if Snake dams breached

Tri-City Herald –

It’s in places like Marsh Creek where the hope rests for spring chinook and other Northwest salmon.

No hatchery-born fish have ever sullied the genetic stock of the chinook that run in the clean, clear waters of the 15-foot-wide tributary of the Middle Fork of the Salmon River, 10 miles west of Stanley and 870 miles from the ocean.

The DNA of these salmon carries the imprint of 10,000 years of adapting to this watershed. Their range of traits and diversity allows them to survive incredible odds and obstacles as they migrate downstream, then return from the ocean to spawn in their native waters. Natural selection has equipped these fish to face the longest, highest migration of any salmon in the world.

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