Figure 10.

Simulated C-starts for a fish larva in the inertial flow regime (Re 6000), based on the body kinematics observed in [15], to explore the effects of Re on wake interception. (a) Predicted trajectories for a range of maximum body curvatures. (Black dashed trajectory = trajectory-effect model, starting from the solid black dot position at 14 ms). (b–d) Flow velocity field for simulations at 0.8, 0.9 and 1.0 times the originally observed body curvature. (e) Summary of the wake-interception effect in larval fish. Fish larvae will intercept their wake during a C-start if their turning angle is between 100° and 180°; fish larvae are able to undershoot but not overshoot their wake, possibly due to Re effects.