Fig. 5

Ancestry assignment (Q values) for k = 2 from ADMIXTURE, plotted across sampled sites. Cross validation error values for k values immediately above 2 were larger and are not shown here. The two populations identified conform to an inshore (red) and an offshore (blue) assignment. One individual at the innermost site of Skjálfandi bay (S1) appears to be an unambiguous offshore northern shrimp, while three individuals at the outermost site (S5) have a majority offshore assignment