Originally Posted By: wsu
The broodstock fish on the Duc don't seem to have caused a crash there, at least based on WDFW's graphs. Why is that?


The Kalama is the same, it has a hatchery facility that draws them back too. Snyder Creek sucks most of those fish out of the river and off the redds imho... I've never read studies on the brood program there but every brood program is different. Whether they consistently use Natural origin spawners for their program or do they keep reproducing from the brood stock returners? It seems as if those programs that keep reproducing from their brood returns reduces the reproductive fitness and creates more strays.

Rivers that do have dams/barriers to sort hatchery fish out, Clackamas, Kalama, etc. seem to do ok with hatchery plants as long as those fish can't make the spawning beds... I haven't been up to the Duc in years though, it was a fun river!

Keith
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It's time to put the red rubber nose away, clown seasons over.