The resource availability scenario (RAS) is an important consideration when developing potential environmental water priorities, plans and watering actions over the year ahead.   The assessment of the RAS occurs leading up to and throughout the water year. The assessment is based climate conditions over the previous year (rainfall, runoff and soil moisture) and surface water […]

Many changes to the condition of the Lachlan River have contributed to the degradation of native fish habitat. River regulation has changed the flow conditions upon which many native fish depend. Changed flow patterns and degraded riparian zones increase bank erosion and turbidity and sedimentation within channels, filling pools and smothering habitats, including macrophytes, woody […]

The largest Australian pelican (Pelecanus conspicillatus) breeding event in over 30 years at Lake Brewster has been ongoing since October 2021. Over 15,000 nests were estimated from drone monitoring in January 2022, and thousands of large chicks and juveniles were still on the breeding mounds in May 2022. This is the largest known breeding event […]

Murrumbidgil Swamp is a wetland of national significant and lies on Merrimajeel Creek, which is one of several distributaries from the lower Lachlan River on the Lachlan alluvial fan. Research starting in the mid-late 1970s established how River Red Gums drive the ecology of Murrumbidgil Swamp,and the Office of Environment and Heritage has recenlt commissioned […]

Commonwealth Environmental Water Holder (CEWH) and recent former Manager RiverBank at NSW Office of Environment and Heritage (OEH) speak with the LRWG

In the Lachlan Catchment there are also nine regionally significant wetlands, four in the mid-Lachlan between Forbes and Lake Cargelligo (including Lake Cargelligo itself) and five below Lake Cargelligo. Regionally significant wetlands are recognised in part on the basis of their meeting one of the five criteria below, which was developed for identifying a key […]

The Lachlan Catchment contains eight nationally significant wetlands, five associated with the swamps and effluent creeks in the lower catchment (Great Cumbung Swamp, Booligal Wetlands, Cuba Dam, Lake Merrimajeel—Murrumbidgil Swamp and Merrowie Creek–Cuba Dam to Chillichil Swamp) and three in the middle catchment (Lake Cowal–Wilbertroy Wetlands, Lake Brewster and Lachlan Swamp; (NOW, 2010c)). The eight […]

The installation and operation of in-stream structures and other processes that alter natural flow regimes is a listed Key Threatening Process under the Fisheries Management Act 1994 and the Threatened Species Conservation Act 1995 (DPI, 2006). Recommendations put forward by the acts specifically note the impact of in-stream structures on the life histories of threatened […]

Excerpt text about rivers and creeks.

Background There are nine native fish species that call the Lachlan River home. Many of these fish species migrate short and long distances to spawn, feed and seek shelter. Structures such as dams, weirs, regulators and poorly designed road crossings can create physical barriers that prevent fish movement up and down the river, and stop […]

Commonwealth Environmental Water Holder (CEWH) and recent former Manager RiverBank at NSW Office of Environment and Heritage (OEH) speak with the LRWG

Commonwealth Environmental Water Holder (CEWH) and recent former Manager RiverBank at NSW Office of Environment and Heritage (OEH) speak with the LRWG

Commonwealth Environmental Water Holder (CEWH) and recent former Manager RiverBank at NSW Office of Environment and Heritage (OEH) speak with the LRWG

Commonwealth Environmental Water Holder (CEWH) and recent former Manager RiverBank at NSW Office of Environment and Heritage (OEH) speak with the LRWG

Commonwealth Environmental Water Holder (CEWH) and recent former Manager RiverBank at NSW Office of Environment and Heritage (OEH) speak with the LRWG

Commonwealth Environmental Water Holder (CEWH) and recent former Manager RiverBank at NSW Office of Environment and Heritage (OEH) speak with the LRWG

Commonwealth Environmental Water Holder (CEWH) and recent former Manager RiverBank at NSW Office of Environment and Heritage (OEH) speak with the LRWG