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A methodological exploration to study 2D arm kinematics in Ophiuroidea (Echinodermata)

Mona Goharimanesh, Sabine Stöhr, Fereshteh Ghassemzadeh, Omid Mirshamsi and Dominique Adriaens (UGent)
(2023) FRONTIERS IN ZOOLOGY. 20(1).
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Abstract
Brittle stars, unlike most other echinoderms, do not use their small tube feet for locomotion but instead use their flexible arms to produce a rowing or reverse rowing movement. They are among the fastest-moving echinoderms with the ability of complex locomotory behaviors. Considering the high species diversity and variability in morphotypes, a proper understanding of intra- and interspecies variation in arm flexibility and movement is lacking. This study focuses on the exploration of the methods to investigate the variability in brittle star locomotion and individual arm use. We performed a two-dimensional (2D) image processing on horizontal movement only. The result indicated that sinuosity, disc displacement and arm angle are important parameters to interpret ophiuroid locomotion. A dedicated Python script to calculate the studied movement parameters and visualize the results applicable to all 5-armed brittle stars was developed. These results can serve as the basis for further research in robotics inspired by brittle star locomotion.
Keywords
Animal Science and Zoology, Ecology, Evolution, Behavior and Systematics, Arm movement, Brittle star, Image processing, Locomotion, BRITTLE STAR, LOCOMOTION

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MLA
Goharimanesh, Mona, et al. “A Methodological Exploration to Study 2D Arm Kinematics in Ophiuroidea (Echinodermata).” FRONTIERS IN ZOOLOGY, vol. 20, no. 1, 2023, doi:10.1186/s12983-023-00495-y.
APA
Goharimanesh, M., Stöhr, S., Ghassemzadeh, F., Mirshamsi, O., & Adriaens, D. (2023). A methodological exploration to study 2D arm kinematics in Ophiuroidea (Echinodermata). FRONTIERS IN ZOOLOGY, 20(1). https://doi.org/10.1186/s12983-023-00495-y
Chicago author-date
Goharimanesh, Mona, Sabine Stöhr, Fereshteh Ghassemzadeh, Omid Mirshamsi, and Dominique Adriaens. 2023. “A Methodological Exploration to Study 2D Arm Kinematics in Ophiuroidea (Echinodermata).” FRONTIERS IN ZOOLOGY 20 (1). https://doi.org/10.1186/s12983-023-00495-y.
Chicago author-date (all authors)
Goharimanesh, Mona, Sabine Stöhr, Fereshteh Ghassemzadeh, Omid Mirshamsi, and Dominique Adriaens. 2023. “A Methodological Exploration to Study 2D Arm Kinematics in Ophiuroidea (Echinodermata).” FRONTIERS IN ZOOLOGY 20 (1). doi:10.1186/s12983-023-00495-y.
Vancouver
1.
Goharimanesh M, Stöhr S, Ghassemzadeh F, Mirshamsi O, Adriaens D. A methodological exploration to study 2D arm kinematics in Ophiuroidea (Echinodermata). FRONTIERS IN ZOOLOGY. 2023;20(1).
IEEE
[1]
M. Goharimanesh, S. Stöhr, F. Ghassemzadeh, O. Mirshamsi, and D. Adriaens, “A methodological exploration to study 2D arm kinematics in Ophiuroidea (Echinodermata),” FRONTIERS IN ZOOLOGY, vol. 20, no. 1, 2023.
@article{01H07Y9H5KE4KY7KHNR6JY4XKQ,
  abstract     = {{Brittle stars, unlike most other echinoderms, do not use their small tube feet for locomotion but instead use their flexible arms to produce a rowing or reverse rowing movement. They are among the fastest-moving echinoderms with the ability of complex locomotory behaviors. Considering the high species diversity and variability in morphotypes, a proper understanding of intra- and interspecies variation in arm flexibility and movement is lacking. This study focuses on the exploration of the methods to investigate the variability in brittle star locomotion and individual arm use. We performed a two-dimensional (2D) image processing on horizontal movement only. The result indicated that sinuosity, disc displacement and arm angle are important parameters to interpret ophiuroid locomotion. A dedicated Python script to calculate the studied movement parameters and visualize the results applicable to all 5-armed brittle stars was developed. These results can serve as the basis for further research in robotics inspired by brittle star locomotion.}},
  articleno    = {{15}},
  author       = {{Goharimanesh, Mona and Stöhr, Sabine and Ghassemzadeh, Fereshteh and Mirshamsi, Omid and Adriaens, Dominique}},
  issn         = {{1742-9994}},
  journal      = {{FRONTIERS IN ZOOLOGY}},
  keywords     = {{Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics,Arm movement,Brittle star,Image processing,Locomotion,BRITTLE STAR,LOCOMOTION}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{14}},
  title        = {{A methodological exploration to study 2D arm kinematics in Ophiuroidea (Echinodermata)}},
  url          = {{http://doi.org/10.1186/s12983-023-00495-y}},
  volume       = {{20}},
  year         = {{2023}},
}
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