Head Horn Enhances Hydrodynamic Perception in Eyeless Cavefish

Abstract Fish can use hydrodynamic stimuli, decoded by lateral line systems, to explore the surroundings. Eyeless species of the genus Sinocyclocheilus have evolved conspicuous horns on their heads, whereas the specific function of which is still unknown. Meanwhile, the eyeless cavefish exhibits mor...

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Main Authors: Zhiqiang Ma, Zheng Gong, Yonggang Jiang, Peng Wu, Changxin You, Zihao Dong, Hongchao Cao, Zhen Yang, Yahui Zhao, Huawei Chen, Deyuan Zhang
Format: Article
Language:English
Published: Wiley 2024-11-01
Series:Advanced Science
Subjects:
Online Access:https://doi.org/10.1002/advs.202406707
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author Zhiqiang Ma
Zheng Gong
Yonggang Jiang
Peng Wu
Changxin You
Zihao Dong
Hongchao Cao
Zhen Yang
Yahui Zhao
Huawei Chen
Deyuan Zhang
author_facet Zhiqiang Ma
Zheng Gong
Yonggang Jiang
Peng Wu
Changxin You
Zihao Dong
Hongchao Cao
Zhen Yang
Yahui Zhao
Huawei Chen
Deyuan Zhang
author_sort Zhiqiang Ma
collection DOAJ
description Abstract Fish can use hydrodynamic stimuli, decoded by lateral line systems, to explore the surroundings. Eyeless species of the genus Sinocyclocheilus have evolved conspicuous horns on their heads, whereas the specific function of which is still unknown. Meanwhile, the eyeless cavefish exhibits more sophisticated lateral line systems and enhanced behavioral capabilities (for instance rheotaxis), compared with their eyed counterparts. Here, the influence of head horn on the hydrodynamic perception capability is investigated through computational fluid dynamics, particle image velocimetry, and a bioinspired cavefish model integrated with an artificial lateral line system. The results show strong evidence that the head horn structure can enhance the hydrodynamic perception, from aspects of multiple hydrodynamic sensory indicators. It is uncovered as that the head horn renders eyeless cavefish with stronger hydrodynamic stimuli, induced by double‐stagnation points near the head, which are perceived by the strengthened lateral line systems. Furthermore, the eyeless cavefish model has ≈17% higher obstacle recognition accuracy and lower cost (time and sensor number) than eyed cavefish model is conceptually demonstrated, by incorporating with machine learning. This study provides novel insights into form‐function relationships in eyeless cavefish, in addition paves the way for optimizing sensor arrangement in fish robots and underwater vehicles.
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issn 2198-3844
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publishDate 2024-11-01
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spelling doaj-art-58e2b1dc9ec640bf8fdbc24b90bead422024-11-27T11:21:53ZengWileyAdvanced Science2198-38442024-11-011144n/an/a10.1002/advs.202406707Head Horn Enhances Hydrodynamic Perception in Eyeless CavefishZhiqiang Ma0Zheng Gong1Yonggang Jiang2Peng Wu3Changxin You4Zihao Dong5Hongchao Cao6Zhen Yang7Yahui Zhao8Huawei Chen9Deyuan Zhang10Institute of Bionic and Micro‐Nano Systems School of Mechanical Engineering and Automation Beihang University Beijing 100191 ChinaInstitute of Bionic and Micro‐Nano Systems School of Mechanical Engineering and Automation Beihang University Beijing 100191 ChinaInstitute of Bionic and Micro‐Nano Systems School of Mechanical Engineering and Automation Beihang University Beijing 100191 ChinaArtificial Organ Technology Lab Bio‐manufacturing Research Center School of Mechanical and Electric Engineering Soochow University Suzhou 215021 ChinaCentre for Artificial Intelligence and Robotics Hong Kong Institute of Science & Innovation Chinese Academy of Sciences Hong Kong 999077 ChinaInstitute of Bionic and Micro‐Nano Systems School of Mechanical Engineering and Automation Beihang University Beijing 100191 ChinaInstitute of Bionic and Micro‐Nano Systems School of Mechanical Engineering and Automation Beihang University Beijing 100191 ChinaInstitute of Bionic and Micro‐Nano Systems School of Mechanical Engineering and Automation Beihang University Beijing 100191 ChinaKey Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences Beijing 100101 ChinaInstitute of Bionic and Micro‐Nano Systems School of Mechanical Engineering and Automation Beihang University Beijing 100191 ChinaInstitute of Bionic and Micro‐Nano Systems School of Mechanical Engineering and Automation Beihang University Beijing 100191 ChinaAbstract Fish can use hydrodynamic stimuli, decoded by lateral line systems, to explore the surroundings. Eyeless species of the genus Sinocyclocheilus have evolved conspicuous horns on their heads, whereas the specific function of which is still unknown. Meanwhile, the eyeless cavefish exhibits more sophisticated lateral line systems and enhanced behavioral capabilities (for instance rheotaxis), compared with their eyed counterparts. Here, the influence of head horn on the hydrodynamic perception capability is investigated through computational fluid dynamics, particle image velocimetry, and a bioinspired cavefish model integrated with an artificial lateral line system. The results show strong evidence that the head horn structure can enhance the hydrodynamic perception, from aspects of multiple hydrodynamic sensory indicators. It is uncovered as that the head horn renders eyeless cavefish with stronger hydrodynamic stimuli, induced by double‐stagnation points near the head, which are perceived by the strengthened lateral line systems. Furthermore, the eyeless cavefish model has ≈17% higher obstacle recognition accuracy and lower cost (time and sensor number) than eyed cavefish model is conceptually demonstrated, by incorporating with machine learning. This study provides novel insights into form‐function relationships in eyeless cavefish, in addition paves the way for optimizing sensor arrangement in fish robots and underwater vehicles.https://doi.org/10.1002/advs.202406707Chinese cavefishhead hornhydrodynamic perceptionlateral linesensor arrangement
spellingShingle Zhiqiang Ma
Zheng Gong
Yonggang Jiang
Peng Wu
Changxin You
Zihao Dong
Hongchao Cao
Zhen Yang
Yahui Zhao
Huawei Chen
Deyuan Zhang
Head Horn Enhances Hydrodynamic Perception in Eyeless Cavefish
Advanced Science
Chinese cavefish
head horn
hydrodynamic perception
lateral line
sensor arrangement
title Head Horn Enhances Hydrodynamic Perception in Eyeless Cavefish
title_full Head Horn Enhances Hydrodynamic Perception in Eyeless Cavefish
title_fullStr Head Horn Enhances Hydrodynamic Perception in Eyeless Cavefish
title_full_unstemmed Head Horn Enhances Hydrodynamic Perception in Eyeless Cavefish
title_short Head Horn Enhances Hydrodynamic Perception in Eyeless Cavefish
title_sort head horn enhances hydrodynamic perception in eyeless cavefish
topic Chinese cavefish
head horn
hydrodynamic perception
lateral line
sensor arrangement
url https://doi.org/10.1002/advs.202406707
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