List of populations investigated for this study.

The table provides latitude and longitude of collection localities, and descriptive statistics of body masses from fish used to characterize size distributions in natural populations as well as from fish used to quantify routine metabolic rates (RMR) in wild-caught and laboratory-reared specimens. We report body masses [g] in means (± standard deviation) and ranges (in parentheses), as well as sample sizes separately for males and females of each population. Note that ID numbers correspond to the numbers in Fig 1.