Fig 2. Log-log relations between (a) dominant tail beat frequency (TBF, Hz) and length (m) and (b) standardized TBF in relation to standardized length for saithe (solid circles, n = 18) and sturgeon (open triangles, n = 22), where the weighted ordinary least square regressions (solid line) are bracketed by the 95% confidence intervals (CIs) around the regression (dashed line) and the unweighted 95% CIs around the predictions (dotted lines).
