Fig. 7. The relationship between fork length (FL) and the number of fast
muscle fibres per trunk cross-section in the DB morph (open circles), the LB
morph (filled circles), the PL morph (open triangles) and the PI morph (filled
circles). The bidirectional error bars represent means ±
S.E.M. Fish of a similar size were grouped together in order to
show the differences between morphs more clearly. The numbers of fish in each
size bin in order of increasing fork length were as follows: LB: 4, 5, 5, 5,
4; DB: 10, 7, 6, 8, 7, 4, 4; PL: 8, 8, 8; PL: 6, 4, 8, 4.