Fig. 6. (A) Profiles of body mass (triangles) and standard length (circles) plotted against sampling date. Data are given as means ± S.E.M. Numbers of fish sampled are shown in parentheses. (B) Condition factor (see Materials and methods) plotted against sampling date. Data are plotted as means ± S.E.M. Sample sizes are identical to those shown in A. Condition factor significantly decreased during the sampling period, which is a trend associated with smolting (asterisks indicate significant difference at overall P<0.05 between dates, Tukey HSD test).