I’d have to believe the Nisqually was planted with hatchery fish at one time, as just about everything was planted with something back in the day.
It hasn’t been opened since 1993 for steelhead fishing.
I agree with Jake, you can’t really compare coastal rivers with the Nisqually as Puget Sound and what is going on with it make them pretty dissimilar in my opinion.

The Puyallup system is getting plants of about 35K in winter fish.
I’m not sure if those are getting planted in the White or the Puyallup itself and what their source is. Maybe a broodstock program from White River native stock?
If anyone knows, I’d be interested to know the source of those fish and where they are planted.
SF