Fig. 1: Sampling river basins and non-native fish colonization patterns.
From: Global freshwater fish invasion linked to the presence of closely related species
a Geographical distribution of 3119 river basins across seven biogeographical realms and percentage of river basins colonized by non-native fish species in each realm. b Percentage of river basins colonized by exotic and translocated non-native fish species in each realm. The locations of river basins are represented by the median points with point size indicating basin area.
