Fig. 7. Frequency distributions of superficial equivalent diameters of all myofibres present in one quadrant of the haddock dorsal epaxial myotome binned into 2.5 µm diameter classes from 2 until 28 d.p.h. among the three incubation temperature treatments (A, 4°C; B, 6°C; C, 8°C). Values are means ± 1 s.e.m. (N=71). *Bars marked by a horizontal line are significantly different between consecutive days (P<0.05). The diagonal grey arrow indicates the temporal shift in the occurrence of the hyperplastic event and is described in text.