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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.