Low DO should really never be an issue-or allowed to be an issue-when choosing fish. The question should be what fish are adapted to your area. Warm water and cool water species overlap in larger impoundments commonly.
Cold water species are yet another choice.
I find in the research I've done that there is strong suggestion that YP are more tolerant of lower water quality than most other cool water species. What I can't find is where they fit in comparison to the fish in the warm water class that tolerate lower water quality conditions.
I know YP are less tolerant of higher temps yet do fine in my pond in 80 deg water. I have a few Saugeye mixed in but they handle some pretty nasty water for having both parents that require generally higher DO levels but then the Sauger can handle very high water temps, walleye can't.
I would think YOY and the oldest Bass, BG and other sunfish species would be the first to succumb to low DO before 2-5 yr old YP would have issues. I'm no rocket scientist here but with the info I could put together in my own research of species in my pond, and possible choices going forward, I don't think YP would have problem without other species suffering as well unless temps are very, very high.
Every pond is going to be different in what it will support-species wise.


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