iNat suggested "Black Basses" (genus micropterus) and based on the horizontal line I'm going with largemouth over smallmouth, but I'm always happy to be corrected.
Couldn't believe how big this was for such a small river!
Fish collections carried out under permit and with permission of the Ignatius Jesuit Centre. Fish were measured and released.
Sub-fossil, first record of this species from this river
I am not familiar with the mussels in Wisconsin. Stumbled across this one while I was fishing.
Several live specimens in this area.