WATER released from Lake Nillahcootie into Broken River began to improve food and habitat sources for native fish, platypus, and water bugs.
Goulburn Broken Catchment Management Authority environmental water and wetlands manager, Simon Casanelia, referred to the release as the "Broken River autumn fresh".
"This will be the second time an autumn fresh has been delivered in the Broken River using environmental water," Mr Casanelia said.
"The fresh was last delivered in 2018 to 2019, and there is now sufficient water available to provide a similar flow for the river."
Autumn freshes help promote the growth of instream and bank vegetation, maintain water quality, and increase habitat for native wildlife.
"The Broken River supports a diverse and abundant native fish population including the Murray cod, Macquarie perch, golden perch, silver perch, Australian smelt, river blackfish, southern pygmy perch and Murray–Darling rainbowfish," Mr Casanelia said.
"The river is also thought to support a large platypus population."
The autumn fresh started on March 20 and will take approximately 10 days to deliver.
Mr Casanelia said the fresh will have a peak magnitude of approximately 40 ML per day, increasing water levels by approximately 25 to 30 cm.
The release was expected to use seven per cent of Lake Nillahcootie's volume, leaving it approximately 80 per cent full.
