Special Issues Details - Hydroecology and Engineering

Guest Editors (2)

Prof. Dr. Jianbo Chang

Institute of Hydroecology, School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan 430072, China

Interests: Ecological Effects of Hydraulic Projects; Aquatic Ecosystem Monitoring and Assessment; Fish Ecology and Conservation Biology; Ecohydrology

Website: https://ihe.whu.edu.cn/info/1082/1033.htm

Prof. Dr. Xiaotao Shi

College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang 443002, China

Interests: Hydraulics and River Dynamics; Fish Passage; Fish Behavior; Habitat Restoration

Website: https://www.scholarmate.com/P/yAbUZn?

Special Issue Information

Fish Passage 2025 will be held from March 30th to April 3rd, 2025 at China Three Gorges University (Yichang, Hubei, China). The theme of the conference is "Ecohydrology and River Connectivity".

The International Passage Conference is held every 1-2 years and has brought together experts, managers, stakeholders and companies from around the world with concurrent sessions in engineering, biology, and management and social issues. Target audiences are: engineers, ecologists, biologists, managers, practitioners, NGOs, private companies, consultants, students and policy and decision makers. This event aims at increasing research and professional networking and is an excellent opportunity to connect future partners.

Fish Passage 2025 wants to demonstrate the latest advances in ecohydrology and river connectivity, including biology, hydraulics, engineering and related topics. In addition to papers directly related to the presentations delivered during the conference, we invite all researchers whose work focuses on "Fish Passage" to submit a manuscript to this Special Issue.

Published Papers (1 Papers)

Open Access

Article

25 September 2025

An Angles-Based Design of an Island-Type Fishway and Its Hydraulic Properties Inside the Channel

With the development of hydraulic and hydroelectric projects, the connectivity of natural rivers has been disrupted, impeding the migration of migratory fish and affecting their reproduction and population sustainability. This study investigates a novel island-type fishway, where combinations of island structures and arc configurations dissipate water flow energy and reduce flow velocity, thereby minimizing resistance to upstream fish migration. The research focuses on the influence of island angles on the hydrodynamic characteristics within the island-type fishway. Experimental results indicate that low-velocity regions downstream of the island exhibit larger areas when the island angle is −60° or 60°. Meanwhile, at an island angle of 0°, the maximum flow velocity and the average flow velocity are reduced. Additionally, turbulence kinetic energy in the fishway chambers is effectively suppressed, with both maximum and average turbulence kinetic energy maintained at low levels. The water level variations caused by changes in island angles are minor, with an advantage observed when the island angle is set to 0°. These findings provide a reference for the further development of island-type fishways.

Yuzhen Chen

Guorui Zeng

Maosen Xu*

Bokai Fan

Ruixing Ying

Hydroecol. Eng.

2025,

(3), 10012;

DOI: 10.70322/hee.2025.10012