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Water-escape velocities in jumping blacktip sharks

Juerg M Brunnschweiler
Published 22 September 2005.DOI: 10.1098/rsif.2005.0047
Juerg M Brunnschweiler
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Abstract

This paper describes the first determination of water-escape velocities in free-ranging sharks. Two approximations are used to estimate the final swimming speed at the moment of penetrating the water surface. Blacktip sharks were videotaped from below the surface and parameters were estimated by analysing the sequences frame by frame. Water-escape velocities averaged 6.3 m s−1. These velocities for blacktip sharks seem accurate and are similar to estimates obtained for other shark species of similar size.

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Footnotes

    • Received February 4, 2005.
    • Accepted April 25, 2005.
  • © 2005 The Royal Society
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22 September 2005
Volume 2, issue 4
Journal of The Royal Society Interface: 2 (4)
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Water-escape velocities in jumping blacktip sharks
Juerg M Brunnschweiler
J. R. Soc. Interface 2005 2 389-391; DOI: 10.1098/rsif.2005.0047. Published 22 September 2005
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Water-escape velocities in jumping blacktip sharks

Juerg M Brunnschweiler
J. R. Soc. Interface 2005 2 389-391; DOI: 10.1098/rsif.2005.0047. Published 22 September 2005

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