I'm not sure what you're referring to from PSF in the Nass. We've not done that. If there was such a study, it was a very old review.
There are many factors involved with this, because the Nass Valley is also very much less developed. There's a huge difference there, to start with.
Unfortunately, the Nass supports the concern about climate change and changes in the ocean, because the productivity coming back to the Nass right now is depressed compared with their recent averages—with one exception: in 2020, they had a very good chum return.
This is the challenge of Pacific salmon. You get these outliers, all of a sudden, that are really good or really bad. Overall, the Nass is very consistent with the Skeena, southeast Alaska, central Alaska, in that there is a declining production.