If you are not yet aware, Mackinaw Trout can not be eaten.
I am not sure if this is on purpose but it is very annoying.
This is a very large species of trout and would hope that when corrected it would be as filling as a cutthroat or mountain whitefish but found in lower altitudes. After all, we need a large fish in lower altitudes seeing as the Cutthroat and Mountain Whitefish seem to only be found in the higher altitude Mountain rivers.
I think the plan is that the larger fish species needs some preparation with the cooking skill. to fillet the fish i think. So you need some cooking skill. which has yet to be released.