Fig. 10. A double logarithmic plot of the 97^th percentile of fibre diameter calculated from the smoothed distributions of fibre diameter (see text) and body mass for the DB morph (open circles), the LB morph (filled circles), the PL morph (open triangles) and the PI morph (filled triangles) of Arctic charr. First order polynomials were fitted to the data for fish greater than 10 g body mass. The relationships in slow and fast muscle are illustrated and the parameters for the equations were as follows. Fast muscle: intercept=log₁₀1.77±0.013; slope=0.18±0.0060 (r²=0.92; ANOVA r²_1,88=948.4; P<0.0001). Slow muscle: intercept=log₁₀1.42±0.022; slope=0.18±0.010; (r²=0.77; ANOVA F_1,88=297.9; P<0.0001).