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Paper Abstract and Keywords
Presentation 2024-10-17 13:20
Analysis of Fish Escape Behavior Based on a hybrid dynamical system
Seijiro Sone (Univ. of Tsukuba), Masaki Yasugi (Fukui Prefectural Univ.), Ikkyu Aihara (Univ. of Tsukuba) CAS2024-35 NLP2024-65
Abstract (in Japanese) (See Japanese page) 
(in English) A prey's behavior of escape is unique to the species. As for the escaping direction, there are two possibilities. One is to escape away from the predator, and the other is to escape by getting close to the predator. Largemouth bass, Micropterus salmoides, and freshwatergoby, Rhinogobius kurodai, are in a predator–prey relationship in Lake Biwa, Japan. The goby escape from bass in two ways, but it is not clear which is the better strategy. We hypothesize that the speed and direction of escape behavior are important factors. So, we aimed to quantitatively clarify the optimal escape strategy of the goby by a hybrid dynamical system that determines nonlinear ordinary differential equation depending on the positions and angles of the two fish. By incorporating the movement of the goby toward the location where the bass begins to attack into the model, we represent the goby's behavior of escaping while approaching the bass. Numerical simulation results revealed that the direction of escape is important when the goby escapes from the bass.
Keyword (in Japanese) (See Japanese page) 
(in English) predator-prey relationship / escape behavior / hybrid dynamical system / mathematical model / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 208, NLP2024-65, pp. 42-47, Oct. 2024.
Paper # NLP2024-65 
Date of Issue 2024-10-10 (CAS, NLP) 
ISSN Online edition: ISSN 2432-6380
Copyright
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reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF CAS2024-35 NLP2024-65

Conference Information
Committee NLP CAS  
Conference Date 2024-10-17 - 2024-10-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Information Center, Tottori University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Nonlinear Problems, Circuits and Systems, etc. 
Paper Information
Registration To NLP 
Conference Code 2024-10-NLP-CAS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analysis of Fish Escape Behavior Based on a hybrid dynamical system 
Sub Title (in English)  
Keyword(1) predator-prey relationship  
Keyword(2) escape behavior  
Keyword(3) hybrid dynamical system  
Keyword(4) mathematical model  
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1st Author's Name Seijiro Sone  
1st Author's Affiliation University of Tsukuba (Univ. of Tsukuba)
2nd Author's Name Masaki Yasugi  
2nd Author's Affiliation Fukui Prefectural University (Fukui Prefectural Univ.)
3rd Author's Name Ikkyu Aihara  
3rd Author's Affiliation University of Tsukuba (Univ. of Tsukuba)
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Speaker Author-1 
Date Time 2024-10-17 13:20:00 
Presentation Time 20 minutes 
Registration for NLP 
Paper # CAS2024-35, NLP2024-65 
Volume (vol) vol.124 
Number (no) no.207(CAS), no.208(NLP) 
Page pp.42-47 
#Pages 6 
Date of Issue 2024-10-10 (CAS, NLP) 

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