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Advancements in fish behavioral research related to
fish passage facility design

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KE Senfan , SHI Xiaotao , SUN Pan , YUAN Yinhao , PANG Kaiwen , LI Dongqing ,
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JIANG Zewen , YU Xiaowei , TU Zhiying 2,3
(1. College of Hydraulic and Environment Engineering, China Three Gorges University, Yichang 443002, China;
2. Engineering Research Center of Eco-environment in Three Gorges Reservoir Region,
Ministry of Education, China Three Gorges University, Yichang 443002, China;
3. College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang 443002, China)
Abstract: Fish behavioral characteristics serve as fundamental data guiding the design of fish passage facilities in hydropower
projects. This study systematically examines four critical aspects closely related to fishway design: ① fish swimming capacity,
② behavioral responses to hydrodynamic conditions, ③ techniques for fish attraction and deterrence, ④ effectiveness monitor-
ing of fish passage operations. By synthesizing 121 relevant studies across these domains, we establish standardized experi-
mental protocols for behavioral parameter quantification and identify pivotal technical criteria, including critical swimming
speeds, turbulence tolerance thresholds, and optimal flow parameters for fish guidance. The analysis reveals limitations in cur-
rent experimental designs, such as insufficient ecological validity in stimulus simulation and inadequate scaling principles for
engineering applications. To address these gaps, we propose enhanced methodologies integrating multi-scale experiments
(laboratory to field) and data-driven adaptive monitoring systems. These advancements aim to refine the scientific rigor of fish
behavior experiments and optimize the ecological performance of fish passage facilities in practical engineering contexts.
Key words: fish passage; fish behavior; swimming ability; fish attraction and repulsion techniques; fish passage efficiency
Corresponding author: SHI Xiaotao. E-mail: fishlab@163.com
Funding projects: National Natural Science Foundation of China (52279069, U2340218); Innovation Group Project of the
Hubei Provincial Natural Science Foundation (2023AFA005)

https://www.china-fishery.cn 中国水产学会主办 sponsored by China Society of Fisheries
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