How long was that fish? It could help with I.D. given the state of deterioration. There are two choices, white perch and striped bass hybrid. I would not expect a larger white perch to keep its horizontal lines, let alone have them show up on a dead, dried up, washed out specimen. But to be honest I never really paid much attention to that character on dead perch. The hundreds of dead ones that I handled were usually washed out in color due to warm water temps but were fairly fresh. Striper hybrids were last stocked in Kaercher probably over 20 yrs ago, so a striper hybrid would be unlikely.