WHAT THE EVIDENCE SAYS
A two-dimensional hydraulic study modeled pools, riffles, runs, ruffles and rapids along approximately 2.9 km and compared habitat-diversity metrics across flow scenarios. Different indices produced different favorable discharge values.
WHY IT MATTERS / OUR READ
Environmental-flow decisions need an explicit biological objective and field validation; optimizing one hydraulic index may not optimize another ecological response.
CAVEATS / UNCERTAINTY
Modeled hydraulic diversity is a habitat proxy rather than observed fish recruitment or a measured ecological restoration outcome.
SOURCE
Paddy and Water Environment — Park and colleagues (28 Oct 2026)
View original evidence ↗