Fig. 1From: Genetic diversity and population differentiation in the cockle Cerastoderma edule estimated by microsatellite markersSampling sites location: Aveiro (Ave); San Simón (Sim); Boiro (Boi); Corcubión (Cor); Ferrol (Fer); Brest (Bre); Oosterschelde (Oos); Isle of Lewis (ILe). Continuous line indicates a potential barrier to gene flow as identified by Barrier softwareBack to article page