Fig. 1From: Genetic relationships between sympatric and allopatric Coregonus ciscoes in North and Central EuropeGeographical map of sampling locations. Map of the 15 locations of Coregonus sampled in Europe (A) and detailed map of lakes sampled around the southern Baltic Sea (Sweden, Germany and Poland), with squares = sympatric populations, and dots = allopatric populations (B)Back to article page