The ecological effects of reservoir enlargement on threatened fish populations in the Cotter River

The ecological effects of reservoir enlargement on threatened fish populations in the Cotter River

Project Information


Project Summary

The enlargement of Cotter reservoir will impact the sole remaining self-sustaining population of the nationally endangered Macquarie perch in the ACT, along with the locally threatened two-spined blackfish. A range of potential impacts have been idenified, and a variety of management mitigations employed, including the largest deployment of contructed fish habitat for a threatened freshwater fish anywhere in the world. As reservoir enlargement or construction is likely to rise worldwide in response the climate change, the lessons learned from Cotter reservoir have international application for conserving freshwater fish populations.