Powered control mechanisms contributing to dynamically stable swimming in porcupine puffers (Teleostei: Diodon holocanthus)

Autor:	Dean V. Lauritzen, Malcolm S. Gordon, Alexis M. Wiktorowicz
Rok vydání:	2007
Předmět:	Fluid Flow and Transfer Processes Teleostei Fin biology Computational Mechanics Biomechanics General Physics and Astronomy Kinematics Mechanics biology.organism_classification Diodon Gait (human) Water tunnel Mechanics of Materials biology.animal Porcupine Geology
Zdroj:	Experiments in Fluids. 43:725-735
ISSN:	1432-1114 0723-4864
DOI:	10.1007/s00348-007-0354-7
Popis:	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 (U crit ); 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 U crit . The unusual body shape probably contributes to unconscious stability control.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f73511a350ba76d9761c7556e5ed48e9 https://doi.org/10.1007/s00348-007-0354-7 Zobrazit plný text záznamu Full text from SpringerLink