Highly-correlated morphological traits, composing the two main axes of variation of a DFA differentiating rainbow smelt grouped according to glacial race and genetic admixture.

Significant loadings were greater than +0.152 or lower than -0.152 at the 1% level (Bonferroni correction, alpha = 0.01/(2 x 42) = 0.000119); Fisher’s inverse hyperbolic tangent transformation. Traits with a negative loading on DFA axis 1 have higher trait values for mixed- Atlantic populations (located at the negative end of axis 1) and lower trait values for all other groups (located at the positive end of axis 1). Conversely, a positive loading on this axis had a lower trait value for mixed-Atlantic populations. Traits with a positive loading on axis 2 have higher trait values for mixed-Acadian populations and lower trait values for all other groups. Conversely, a negative loading on this axis had a lower trait value for mixed- Acadian populations. l.- length, d.- depth, ct.- count. Traits in bold print signify transgressive traits (see S1 Table for values).Highly-correlated morphological traits, composing the two main axes of variation of a DFA differentiating rainbow smelt grouped according to glacial race and genetic admixture.