I do believe ND Tourism has some say in what happens with NDGF. I don't know if the DL Chamber of Commerce has a big voice when it comes to some regulations. I believe they have some impact on some of those decisions though. ND Tourism wants people to come to ND, so do most of the local businesses. How doesn't that impact decisions made by NDGF?
I also think declining water levels and predation have really hurt perch and pike populations, especially in Devils Lake/Stump Lake. Jason Mitchell's comments on that I think are spot on. Biology agrees.
Reducing perch limit to ten - if anyone fishes deeper than 30', and practice "selective harvest", all those small fish will probably die anyway. Almost have to make a law about fishing in certain depths where you have to keep fish - almost impossible to enforce/monitor though.
FFS - I don't believe FFS has a major impact on perch or walleye fishing. Do I think it helps? Sure. But it doesn't guarantee anything. I don't think there's enough "weekend warriors" using it to make a dent in any population. I also think the serious angler that uses it is more than likely practicing ethical catch and release. Not all, but most.
For me, the jury is still out as far as guides having an impact on fish populations. They have to take out A LOT of fish before making a dent in the population in a lake the size of Devils. Predation and water levels have way more impact, in my opinon.