Sexual dimorphism in fin size and shape in bluefin killfish

These data accompany the analysis of sexual dimorphism in fin size in bluefin killifish. In this study, we quantified sexual dimorphism in fin size and shape across all fin types in the bluefin killifish, Lucania goodei. We found striking sexual dimorphism in the dorsal and anal fins, particularly in area, ray length, and base length. In contrast, the pelvic, pectoral, and caudal fins showed moderate, but detectable, levels of dimorphism. The package contains data on fin ray number, fin ray lengths, fin area, and fin base length for dorsal, anal, caudal, pectoral, and pelvic fins of male and female blufin killifish.