FIGURE 2.

Fixed (blue circles) and semi (green diamonds) landmarks and linear measurements used for the GM analyses of Atlantic salmon smolts (image modified from Moccetti et al. 2023). Landmarks 14 and 15 (red stars) were used to correct for body arching. (1) Tip of snout; (2) midpoint between 1 and 3; (3) directly above middle of eye; (4) perpendicular to lateral line, projected towards 3; (5) dorsal surface posterior of cranium; (6) perpendicular to lateral line, projected towards 5; (7) anterior insertion point of dorsal fin; (8) anterior insertion point of adipose fin; (9) dorsal insertion point of caudal fin; (10) versal insertion point of caudal fin; (11) posterior midpoint of hypural plate; (12) anterior insertion point of anal fin; (13) anterior insertion point of ventral fin; (14) lateral line—perpendicular to 7; and (15) lateral line—perpendicular to 12.