Figure 3.

Multi-dimensional scaling plots of Cavalli-Sforza and Edwards (1967) chord distance between sympatric or parapatric populations shown separately by region. A – northern, B – coastal, and C – southern. Symbols denote ecotype (solid squares – sea/river ecotype, open squares – lake ecotype; stars – kokanee ecotype); convex hulls or lines group sympatric/parapatric populations; the dashed line indicates that one sea/river-type population (Gingut_R) did not fit within the cluster. Adjacent sites were grouped if they overlapped, as for the Stuart (Takla Lake) and Nechako rivers, Shuswap and Adams lakes, Anderson and Seton lakes, and upper and lower Alsek River sites.