1. Field swimming behavior in largemouth bass deviates from predictions based on economy and propulsive efficiency
- Author
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David J. Ellerby, Angela X. Han, and Caroline G. Berlin
- Subjects
0106 biological sciences ,food.ingredient ,Physiology ,Prey detection ,Kinematics ,Aquatic Science ,010603 evolutionary biology ,01 natural sciences ,symbols.namesake ,Bass (fish) ,food ,Animals ,14. Life underwater ,Unit distance ,Molecular Biology ,Swimming ,Ecology, Evolution, Behavior and Systematics ,Mathematics ,010604 marine biology & hydrobiology ,Biomechanical Phenomena ,Swimming speed ,Insect Science ,symbols ,Strouhal number ,Bass ,Animal Science and Zoology ,Energy Metabolism ,Propulsive efficiency ,Marine engineering - Abstract
Locomotion is energetically expensive. This may create selection pressures that favor economical locomotor strategies, such as the adoption of low-cost speeds and efficient propulsive movements. For swimming fish, the energy expended to travel a unit distance, or cost of transport (COT), has a U-shaped relationship to speed. The relationship between propulsive kinematics and speed, summarized by the Strouhal number (St=fA/U, where f is tail beat frequency, A is tail tip amplitude in m and U is swimming speed in m sā1), allows for maximal propulsive efficiency where 0.2
- Published
- 2017