Fig. 4. The distribution of muscle fibre diameters in relation to fish standard length (SL, cm) in the fast myotomal muscle of (A) Eleginops maclovinus and (B) Patagonotothen tessellata. Smooth distributions were fitted to 1000 measurements of muscle fibre diameter using a kernel function. Each dotted line represents an individual fish. The coloured lines represent the smallest (red), the largest (blue) and an intermediate size (green) fish, of indicated SL.