JEB -- Day et al. 208 (14): 2661 Figure IG9

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Fig. 9. DPIV data from 42 feeding sequences from three bluegill showing that time to peak gape (TTPG) is closely related to peak fluid speed (FS; measured at $1/2$ PG in front of the fish on the centerline), illustrating one mechanism of enhancing fluid speed during suction. Individual #1, peak FS_PG=4.6 xTTPG^–0.86 (r²=0.86); Individual #2, peak FS_PG=4.0 xTTPG^–0.84 (r²=0.84); Individual #3, peak FS_PG=4.2 xTTPG^–0.80 (r²=0.92); pooled data from all 42 feedings from three individuals, peak FS_PG=4.5 xTTPG^–0.85 (r²=0.87); speed, m s^–1; time, ms.