Log-log relations between (a) swimming speed and length and (b) standardized swimming speed and standardized length for saithe (solid circles, <i>n</i> = 18) and sturgeon (open triangles, <i>n</i> = 22) where weighted ordinary least square regressions (solid line) are bracketed by the 95% confidence intervals (CI) around the regression (dashed lines) and unweighted 95% CI around the predictions (dotted lines).

<p>Log-log relations between (a) swimming speed and length and (b) standardized swimming speed and standardized length for saithe (solid circles, <i>n</i> = 18) and sturgeon (open triangles, <i>n</i> = 22) where weighted ordinary least square regressions (solid line) are bracketed by the 95% confidence intervals (CI) around the regression (dashed lines) and unweighted 95% CI around the predictions (dotted lines).