Fig. 2

The Templeton Crandall Singh (TCS) haplotype network demonstrates the relationship among the Cytb sequences revealed haplotypes of R. oxycephalus in South Korea. Each circle indicates the haplotype of R. oxycephalus and is colored based on the river basin. Circle sizes are proportional to the haplotype frequencies. The number of mutations is represented by the hatch marks. The black circles denote the median vectors. The red dashed lines indicate clade and labeled with the river basin included in each clade. The circle points of map indicate the river location in this study. The map was generated by using ArcGIS software version 10.6 (https://www.arcgis.com/index.html). The map and haplotypic network were merged manually in Adobe Photoshop CS 8.0.