Fig. 10. The dorsal and anal fins produce vortices with streamwise circulation statistically indistinguishable from those produced by the caudal fin. Bars show the mean + s.e. of the peak circulation over the entire body, based on the ANOVA described in the text. Vortices with circulations that do not differ significantly (P<0.05) are connected by bars below the plot. Inset shows the position on the body where each vortex was generated.