Fig. 1
From: Genomic signatures and correlates of widespread population declines in salmon
Changes in effective population size (Ne) of Atlantic salmon across the range. Map of all salmon sampling locations in (a) North America (n = 73) and (b) Europe (n = 99) with significantly declining (red) and non-declining (blue) populations indicated by coloured points. Inset pie chart shows the proportion of populations assigned to each category, with panels (c–f) showing changes in Ne between 1975 and 2005 for non-declining (c, North America; e, Europe) and significantly declining (d, North America; f, Europe) populations. Any Ne estimates with large or negative (infinite) values were converted to 10,000 for this figure. Maps were generated using National Oceanic and Atmospheric Administration (NOAA) bathymetry data from the R package marmap67
