Yellow perch fishing in Lake Erie means dressing warm for a few hours on the water — the ice is gone, the fish are biting. Photo courtesy of Captain Hans Mann

The little wavy hump on the bottom of the screen are yellow perch schooling up in Lake Erie. Anglers with modern sonar can locate them. Note that the water temp is 36 degrees and the fish are biting at 9:36 a.m. Photo courtesy of Captain Daryl Glasner