Figure 4

STRUCTURE plots for K = 2–4 showing proportion of cluster membership for each individual in Frederick, Kathleen, and Sockeye Lakes (neutral, 271 SNPs). Bayesian clustering analysis of the wild populations implemented in STRUCTURE found evidence for K = 2 (Table S1), separating the Frederick Lake population from those sampled in Sockeye and Kathleen Lakes. No structure was found temporally or spatially in or between Sockeye and Kathleen Lakes.