Fig. 2

The morphological traits of Pseudogobio esocinus focused on in this study and their relationships. Standard length (SL), mouth length (ML), and mouth width (MW). Estimated regression lines between traits (blue lines) with the 95% confidence intervals (gray shades) are shown in the panels. Residuals in the regressions for ML by SL, MW by SL, and MW by ML represent morphological indices (MI1, MI2, and MI3, respectively). Standard deviations (SDs) of MIs are shown on the panels