Column names,Description Code,Site code RiverSystem,River system STR_locPrior,location prior used for site in STRUCTURE introgression analysis Hatchery_included,Hatchery populations included in STRUCTURE introgression analysis (FM=Fraser's Mills; MR=Margaree) Introgression_FM,Mean admixture coefficient for FM hatchery Introgression_MR,Mean admixture coefficient for MR hatchery Introgression_total,Total of mean admixture coefficient for hatcheries (used as amount of introgression) Average_HumanDensity,Mean human population density in area (people/km2) Total_Fish_Stocked,Total number of fish stocked in system FallStocking_n,Total number of fish stocked in fall stocking program SpringStocking_n,Total number of fish stocked in spring stocking program Elevation_m,Elevation (meters) PropagulePressure,Propagule pressure calculated for each site (see formula in text) BIO1,Annual mean temperature BIO2,Mean diurnal range (Mean of monthly (max temp - min temp)) BIO3,Isothermality (BIO2/BIO7) (* 100) BIO4,Temperature seasonality (standard deviation *100) BIO5,Max temperature of warmest month BIO6,Min temperature of coldest month BIO7,Temperature annual range (BIO5-BIO6) BIO8,Mean temperature wettest quarter BIO9,Mean temperature of driest quarter BIO10,Mean temperature warmest quarter BIO11,Mean temperature coldest quarter BIO12,Annual precipitation BIO13,Precipitation of wettest month BIO14,Precipitation of driest month BIO15,Precipitation seasonality (Coefficient of Variation) BIO16,Precipitation of wettest quarter BIO17,Precipitation of driest quarter BIO18,Precipitation of warmest quarter BIO19,Precipitation of coldest quarter Mean_N_Fish_per_Stocking_Event,Mean number of fish stocked per event Number_Years_since_MeanStockingYear,Number of years since the mean year of stocking ProportionAdult_stocked,Proportion of adults stocked mean_weight_stock,Mean weight of fish stocked