Actually PGK, I think any area can be "unparked" given the right set of circumstances and Govt- ANWR comes immediately to mind so nothing is truly safe. While NP's may provide some degree of protection, I think only a plan such a Y2Y protects a large enough area to be a true refugia if I am understanding that term correctly. I agree with you about stocking a pothole lake with non natives is different than stocking flowing waters, but what about introducing fish to flowing waters that had no resident fish( Stauffer, Ram etc)? Should we allow only natives or should we be more flexible-I'm kinda torn on this one
Regards Mike