Affiliation:
1. Department of Biological Sciences, University of Southern Maine, 96 Falmouth Street, Portland, ME 04103, USA
Abstract
SUMMARYThe dynamics of pectoral fin rowing in the threespine stickleback are investigated by measuring the instantaneous force balance on freely swimming fish throughout the stroke cycle and comparing the measured forces with fin motions and an unsteady, blade-element model of pectoral fin propulsion. Both measured and modeled forces suggest that attached vortex and circulatory forces and not inertial (added mass) forces dominate the force balance. Peak forces occur at midstrokes. There is no evidence for large force peaks at the stroke transitions due to either rapid fin rotation (supination) or rapid fin closure against the body. The energetics of pectoral fin rowing are estimated using the unsteady blade-element model and an indirect method based on the center of mass dynamics. The results indicate that the mechanical efficiency of pectoral fin rowing is low (0.1–0.3) relative to a flapping mechanism and possibly relative to axial undulation at comparable speeds.
Publisher
The Company of Biologists
Subject
Insect Science,Molecular Biology,Animal Science and Zoology,Aquatic Science,Physiology,Ecology, Evolution, Behavior and Systematics
Reference69 articles.
1. Anderson, E. J., McGillis, W. R. and Grosenbaugh, M. A.(2001). The boundary layer of swimming fish. J. Exp. Biol.204,81-102.
2. Archer, S. D. and Johnston, I. A. (1989). Kinematics of labriform and subcarangiform swimming in the Antarctic fish Notothenia neglecta.J. Exp. Biol.143,195-210.
3. Arreolla, V. I. and Westneat, M. W. (1996). Mechanics of propulsion by multiple fins: kinematics of aquatic locomotion in the burrfish (Chilomycterus schoepfi). Proc. R. Soc. Lond. B.263,1689-1696.
4. Bell, M. A. and Foster, S. A. (1994). The Evolutionary Biology of the Threespine Stickleback. Oxford: Oxford University Press.
5. Bellwood, D. R. and Wainwright, P. C. (2001). Locomotion in labrid fishes: implications for habitat use and cross-shelf biogeography on the Great Barrier Reef. Coral Reefs20,139-150.
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