It seems to me the current impasse is possibly amongst the 5 (?) tribal governments involved in the negotiations maybe more than the other potential avenues of disagreements.
I also wonder as Botiz tangentially did why Lake Trout is considered a commercial species. Managing for Salmon+Whitefish would seem to have a better ROI all the way around for tribal commercial interests - more tourism in Casino country from sports fishing plus a better commercial product. I would rather stop at a tribal dock retail outlet for some fresh Coho; I will never be purchasing Lake Trout. Has always been a bit telling to me that one tribe operates a commercial weir for Chinooks, not Lakers.
So I have to wonder if part of this long struggle might be between the precepts of Restoration Ecology on the part of Federal biologists in particular, plus some portions of the tribal interests wanting only a 19th Century species mix, vs. some tribal members now wanting the same thing sports fishermen want: more Salmon, less Lake Trout (just my imagination making things up, possibly). But, no one is saying anything on anything right now.
Meanwhile, things change as ecosystems are more irreversibly dynamic than Restoration Ecologists will seem to admit, from what I know of the field. Can’t have such a debate about Lake Erie any more, that’s for sure.