Balances of multiple varying forces must be the basis for the unusually great dynamic stability of swimming pufferfishes. We used high-speed digital video recordings to study biomechanics and kinematics of rectilinear swimming at different speeds of five porcupine puffers in a water tunnel. We measured critical swimming speeds (Ucrit); fin biomechanics, kinematics, and coordination; recoil movements; and gait changes. Major propulsors were pectoral fins at lower speeds; dorsal, anal, and caudal fins at higher speeds. Precise coordination of fin movements produced small recoil movements at speeds below Ucrit. The unusual body shape probably contributes to unconscious stability control. © 2010 Springer-Verlag Berlin Heidelberg.
CITATION STYLE
Wiktorowicz, A. M., Lauritzen, D. V., & Gordon, M. S. (2010). Powered control mechanisms contributing to dynamically stable swimming in porcupine puffers (Teleostei: Diodon holocanthus). In Animal Locomotion (pp. 87–97). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-11633-9_9
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