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Related Experiment Video

Updated: Jul 14, 2025

Integrating Visual Psychophysical Assays within a Y-Maze to Isolate the Role that Visual Features Play in Navigational Decisions
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Finding navigation cues near fishways.

Jelger Elings1, Stijn Bruneel1, Ine S Pauwels2

  • 1Aquatic Ecology Research Unit, Department of Animal Sciences and Aquatic Ecology, Ghent University, Coupure Links 653, Ghent, B-9000, Belgium.

Biological Reviews of the Cambridge Philosophical Society
|October 9, 2023
PubMed
Summary
This summary is machine-generated.

Understanding fish migration cues is crucial for improving fishway efficiency. This review analyzes navigational cues and models to enhance fish passage solutions for diverse species and conditions.

Keywords:
behavioural modellingecohydraulicsfine-scale telemetryfish migrationfishpass

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Area of Science:

  • Ecology
  • Ichthyology
  • Environmental Science

Background:

  • Fish migration is vital for many species' life cycles, including diadromous fish like salmon and eels.
  • Anthropogenic pressures have increased habitat fragmentation in freshwater systems, impacting fish migration.
  • Current fishways often lack effectiveness, necessitating improved understanding of fish navigation.

Conclusions:

  • A comprehensive understanding of fish navigational cues is essential for effective fishway design.
  • Integrating behavioral and environmental models can improve predictions of fish passage.
  • Improved fishway strategies are needed to mitigate habitat fragmentation and support fish populations.