Detection of outlier SNPs using BAYESCAN. Populations included in the analysis: (a) the entire Kvichak River drainage, (b) after excluding Lake Clark, and (c) Iliamna Lake only. FST: locus-specific genetic divergence among populations; log10Bayes Factor: decision factor in logarithmic scale (base 10) to determine selection; a vertical line indicates "decisive" evidence for selection. Filled circles represent candidates for selection; empty circles represent putatively neutral loci. Marker labels have been simplified (the prefix "One_" is missing).