The Union River near Belfair — the last estuary you come to when venturing into Hood Canal — slaps us in the face with an enigma.

For the moment, I can’t do much more than pose some perplexing questions. But I get the feeling that if we could get the answers, we would understand more about salmon recovery in Lower Hood Canal and possibly other places as well.
The Union River also highlights the customary finger-pointing as to why certain stocks of salmon declined in the first place and what it will take to bring them back. Of the four H’s — harvest, habitat, hatcheries and hydro — the greatest finger-pointing goes on between harvest and habitat.
Let’s take Hood Canal summer chum and focus on the Union River, which was the subject of a story I wrote for Monday’s Kitsap Sun.
First, why did summer chum go extinct in the Dewatto and Tahuya rivers — the closest rivers to the Union — while maintaining a viable population in the Union?