Whole‐body morphometrics and 15 nuclear DNA microsatellite loci were analysed for 158 Perca flavescens collected during the spawning season from four spawning locations in central Lake Erie, two along the northern shore and two along the southern shore, to evaluate fine‐scale variation (spanning 17–94 km). Results showed significant morphological and genetic differences among P. flavescens from the four locations. The magnitud...