Energetic advantages of burst swimming of fish |
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Authors: | D Weihs |
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Affiliation: | Department of Aeronautical Engineering, Technion-Israel Institute of Technology, Haifa, Israel |
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Abstract: | It is shown theoretically that fish can swim more efficiently by alternating periods of accelerated motion and powerless gliding. Analysis of the mechanics of swimming shows that large savings of over 50% in the energy required to traverse a given distance can be obtained by such means. In calculations based upon measured data for salmon and haddock, the possibility of range increases of up to three times the range at constant speed are demonstrated. |
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