URL: https://www.mdba.gov.au/sites/default/files/publications/operational-ranges-of-the-river-murray-fishways-summary_0.pdf
Publication: March 2025
This document provides a summary of the ‘MDWERP Fishways Project’.
The study demonstrates the benefits of combining existing historical datasets with digital modelling and analysis tools by:
reviewing and assessing fishway performance and operational limits across the expected hydrological flow range for the River Murray fishways
characterising fishway conditions and effectiveness for proposed Weir Pool Manipulation (WPM) levels across the expected hydrological flow range
developing operational guidance notes that detail lock/weir operation relative to fishway operational limits with respect to real-time measurements of Tail Water Level and Head Water Level.
The analysis of 20 years of fishway operation using Passive Integrated Transponder (PIT) tag databases and hydraulics reconstructions generally supports existing design criteria.
Some apparent conservatism in the minimum depth and attraction flow criteria was identified, and the new understanding of these limits is expected to modify this operation.
The database and methodology developed in this project will have ongoing use in the optimisation of specific aspects of fishway operation.
Your browser does not support object tags.
You can copy and paste the embed code into a CMS or blog software that supports raw HTML