I see Salmo already said most of what I said in my last post...

We already have by far the most efficient and useful fish trap ever built on the Columbia River. It's already paid for, it works like a charm, and could be 100% selective. It would remove virtually all hatchery fish from the river, and could release everything from the smallest jack to the largest ESA listed spring Chinook, and everything in between.

It's called the fish ladder at Bonneville Dam.

Fish on...

Todd