Results of canonical correlation analyses (CANCORs) for the full data set and for freshwater and marine fish species separately.

The total data set included 11344 species, of which 1829 were freshwater species and 10068 marine species (553 species were considered both marine and freshwater). An analysis conducted excluding 461 species subjected to introductions gave virtually identical results. CANCORs were conducted accounting for phylogenetic non independence.
D1: Dimension 1, D2: Dimension 2, Rc: Canonical correlation coefficient; df: degrees of freedom.