ORIGINAL PAPER Metachronal swimming in Antarctic krill: gait kinematics and system design
Abstract Metachronal swimming, in which adjacent appendages stroke in sequence, is widespread among crustaceans inhabiting the transitional flow realm in which both viscosity and inertia effects are important. However, the design and operation of this propulsion system in response to various hydrody...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.353.6935 2023-05-15T13:34:19+02:00 ORIGINAL PAPER Metachronal swimming in Antarctic krill: gait kinematics and system design R. King J. Yen D. W. Murphy D. R. Webster S. Kawaguchi The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.353.6935 http://www.biology.gatech.edu/people/pdf/yen/pdfs/Murphy et al 2011.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.353.6935 http://www.biology.gatech.edu/people/pdf/yen/pdfs/Murphy et al 2011.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.biology.gatech.edu/people/pdf/yen/pdfs/Murphy et al 2011.pdf text ftciteseerx 2021-11-07T01:22:31Z Abstract Metachronal swimming, in which adjacent appendages stroke in sequence, is widespread among crustaceans inhabiting the transitional flow realm in which both viscosity and inertia effects are important. However, the design and operation of this propulsion system in response to various hydrodynamic, energetic, and behavioral needs have not been well investigated. We examine free-swimming Antarctic krill (Euphausia superba) as a model species and identify three distinct behavioral swimming gaits. The pleopod kinematics of these gaits, hovering, fast-forward swimming, and upside-down swimming, are quantified via image analysis of high-speed video. Pleopod stroke amplitude and frequency were found to vary significantly among these swimming modes. In order to increase swimming speed, krill were found first to increase stroke amplitude and secondarily to increase beat frequency. The kinematics of these distinct swimming modes provide insight as we consider multi-appendage metachronal swimming from a design standpoint. The ratio of the distance between adjacent appendage bases and appendage length is identified as a key parameter in metachrony, the value of which is constrained to a narrow range for a wide variety of species. Communicated by A. Atkinson. Text Antarc* Antarctic Antarctic Krill Euphausia superba Unknown Antarctic Atkinson ENVELOPE(-85.483,-85.483,-78.650,-78.650) |
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English |
description |
Abstract Metachronal swimming, in which adjacent appendages stroke in sequence, is widespread among crustaceans inhabiting the transitional flow realm in which both viscosity and inertia effects are important. However, the design and operation of this propulsion system in response to various hydrodynamic, energetic, and behavioral needs have not been well investigated. We examine free-swimming Antarctic krill (Euphausia superba) as a model species and identify three distinct behavioral swimming gaits. The pleopod kinematics of these gaits, hovering, fast-forward swimming, and upside-down swimming, are quantified via image analysis of high-speed video. Pleopod stroke amplitude and frequency were found to vary significantly among these swimming modes. In order to increase swimming speed, krill were found first to increase stroke amplitude and secondarily to increase beat frequency. The kinematics of these distinct swimming modes provide insight as we consider multi-appendage metachronal swimming from a design standpoint. The ratio of the distance between adjacent appendage bases and appendage length is identified as a key parameter in metachrony, the value of which is constrained to a narrow range for a wide variety of species. Communicated by A. Atkinson. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
R. King J. Yen D. W. Murphy D. R. Webster S. Kawaguchi |
spellingShingle |
R. King J. Yen D. W. Murphy D. R. Webster S. Kawaguchi ORIGINAL PAPER Metachronal swimming in Antarctic krill: gait kinematics and system design |
author_facet |
R. King J. Yen D. W. Murphy D. R. Webster S. Kawaguchi |
author_sort |
R. King |
title |
ORIGINAL PAPER Metachronal swimming in Antarctic krill: gait kinematics and system design |
title_short |
ORIGINAL PAPER Metachronal swimming in Antarctic krill: gait kinematics and system design |
title_full |
ORIGINAL PAPER Metachronal swimming in Antarctic krill: gait kinematics and system design |
title_fullStr |
ORIGINAL PAPER Metachronal swimming in Antarctic krill: gait kinematics and system design |
title_full_unstemmed |
ORIGINAL PAPER Metachronal swimming in Antarctic krill: gait kinematics and system design |
title_sort |
original paper metachronal swimming in antarctic krill: gait kinematics and system design |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.353.6935 http://www.biology.gatech.edu/people/pdf/yen/pdfs/Murphy et al 2011.pdf |
long_lat |
ENVELOPE(-85.483,-85.483,-78.650,-78.650) |
geographic |
Antarctic Atkinson |
geographic_facet |
Antarctic Atkinson |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba |
op_source |
http://www.biology.gatech.edu/people/pdf/yen/pdfs/Murphy et al 2011.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.353.6935 http://www.biology.gatech.edu/people/pdf/yen/pdfs/Murphy et al 2011.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766051560702345216 |