Global, regional, and cryptic population structure in a high gene-flow transatlantic fish
Fig 6
Seascape redundancy analysis of lumpfish (Cyclopterus lumpus).
Moran Eigenvector’s Maps (MEMs) decompose spatial relationships among samples based on a spatial weighting matrix. Four MEMs, and two synthetic environmental variables (Salinity/Temperature range, Oxygen level/Minimum Temperature) were significantly associated (p < 0.001) with the observed genetic structure. Together they explained 55.5% of the total variation. Samples are color-coded based on their geographic region as described in Table 1, with all Baltic Sea samples pooled as one. Isfjorden and Skagerrak samples are labeled as separated from other samples in their region. Small blue circles denote 139 SNPs.