中国物理B ›› 2025, Vol. 34 ›› Issue (3): 38702-038702.doi: 10.1088/1674-1056/ada54c

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Dynamics of zebrafish locomotion being independent of spatial size

Zhen Wang(王震)1, Jian Gao(高见)1,†, Yongshang Long(龙永尚)1, Huaping Lv(吕华平)2, and Qun Wang(王群)2   

  1. 1 School of Mathematics and Physics, Anqing Normal University, Anqing 246011, China;
    2 School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
  • 收稿日期:2024-10-22 修回日期:2024-12-07 接受日期:2025-01-03 发布日期:2025-03-15
  • 通讯作者: Jian Gao E-mail:gaojian1612@163.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 12205006) and the Excellent Youth Scientific Research Project of Anhui Province, China (Grant No. 2022AH030107).

Dynamics of zebrafish locomotion being independent of spatial size

Zhen Wang(王震)1, Jian Gao(高见)1,†, Yongshang Long(龙永尚)1, Huaping Lv(吕华平)2, and Qun Wang(王群)2   

  1. 1 School of Mathematics and Physics, Anqing Normal University, Anqing 246011, China;
    2 School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
  • Received:2024-10-22 Revised:2024-12-07 Accepted:2025-01-03 Published:2025-03-15
  • Contact: Jian Gao E-mail:gaojian1612@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 12205006) and the Excellent Youth Scientific Research Project of Anhui Province, China (Grant No. 2022AH030107).

摘要: Zebrafish are increasingly being utilized as a laboratory animal species to study various biological processes, both normal and pathological. It is crucial to comprehend the dynamics of zebrafish locomotion and put forth realistic models since their locomotion characteristics are employed as feedback indicators in diverse experiments. In this study, we conducted experimental research on the locomotion of zebrafish across various spatial sizes, focusing on the analysis of motion step size and motion direction. The results indicated that the motion step exhibits long-range correlations, the motion direction shows unbiased randomness, and the data characteristics are not influenced by spatial size. The dynamic mechanisms are complicated dynamical processes rather than fractional Brownian or Lévy processes motion. Based on the experimental results, we proposed a model for describing the movement of zebrafish in a circular container. Our findings shed light on the locomotion characteristics of zebrafish, and have the potential to benefit both the biological outcomes of animal tests and the welfare of the subjects.

关键词: zebrafish locomotion, individual behavior, zebrafish modelling, stochastic process

Abstract: Zebrafish are increasingly being utilized as a laboratory animal species to study various biological processes, both normal and pathological. It is crucial to comprehend the dynamics of zebrafish locomotion and put forth realistic models since their locomotion characteristics are employed as feedback indicators in diverse experiments. In this study, we conducted experimental research on the locomotion of zebrafish across various spatial sizes, focusing on the analysis of motion step size and motion direction. The results indicated that the motion step exhibits long-range correlations, the motion direction shows unbiased randomness, and the data characteristics are not influenced by spatial size. The dynamic mechanisms are complicated dynamical processes rather than fractional Brownian or Lévy processes motion. Based on the experimental results, we proposed a model for describing the movement of zebrafish in a circular container. Our findings shed light on the locomotion characteristics of zebrafish, and have the potential to benefit both the biological outcomes of animal tests and the welfare of the subjects.

Key words: zebrafish locomotion, individual behavior, zebrafish modelling, stochastic process

中图分类号:  (General theory and mathematical aspects)

  • 87.10.-e
87.15.A- (Theory, modeling, and computer simulation) 05.70.Ln (Nonequilibrium and irreversible thermodynamics)