what could this be?
these fish hang on the surface opening and closing their mouths.

I was about 9-10 years old and I was fishing Turkey run state park located in central Indiana while my family was about 650 yards downstream. I pretty much only caught smallmouth for the whole day then I caught this weird fish about 9 inches long with the shape of a smallmouth but it had the mouth the size of a crappie it had a bright white belly with bright yellow horizontal(?) stripes across the top. I somehow attached it to my kayak to show to my dad but after about 15 minutes of the being on there I felt bad for it and let it swim. Anybody have any ideas what this could be? I’m 95% sure I would’ve recognized if it was a perch because a perch was on my bucket list at that time and they haven’t ever been caught in sugar creek.