If l remember what happened after the late 90s issue was the AGFC got some sort of agreement with the COE for water release if temperature levels exceeded acceptable levels for the fishery.
Given current daily temps if we saw no generations for two days we would have a big problem. Recently l fished from Rim to take out at Ranchette, 7am it was low 50s at Rim, when l took out at Ranchette it was 73f.

As Jimmy also points out its more than temperature it is also a oxygen issue.
Further for our rivers now days since the years of high water we now have overall very slow downstream movement in some cases almost zero if generations have ceased for much more than 24 hrs above the Confluence and lower if Norfork flushes no water. Further the river as way wider and shallower than it ever used to be.
That also reduces invertebrate life form, and allows a far greater level of predation from other species of wildlife, over all its not good for any river system regardless of the species.

Davy.

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