What is environmental water & how is it managed?
In simple terms, environmental water is a share of water which is specifically and purposefully managed by humans to benefit the environment by either reserving water or releasing volumes into rivers, creeks and wetlands. The Lachlan Riverine Working Group (LRWG) acts in an advisory capacity to manage environmental water in the Lachlan, assisting with the implementation of the Lachlan Environmental Watering Management Plan (LEWMP) and Lachlan Annual Environmental Water Plan.
Lachlan Riverine Environmental Water Management Plan
The LEWMP assists in the delivery of environmental water through setting priorities based on important ecological, cultural and social values. The wetlands selected as priority for delivery of environmental water include those recognised as nationally and regionally important, providing good examples of wetland types associated with lowland rivers. In managing significant wetlands, consideration is given to how environmental water can also benefit key riverine assets, functions and values.
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Current Events
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Environmental Outcomes
Fish on the Move – Lachlan Fish Passage Program
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…
Murrumbidgil Swamp, Lake Tarwong and Lake Bullogal in-field condition assessments to be completed late October
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…
Research
Ecological Responses of Aquatic Vegetation Communities to the Water Regime and Water Quality of Inland Ephemeral Lakes
This project aims to investigate the ecological response of the aquatic vegetation communities to water quality changes and water regime. The main study site is Lake Brewster with comparisons also planned for Lake Cowal and Lake Cargelligo, all of which are situated in the mid section of the Lachlan river catchment.
Response of Frogs to Environmental Factors in the Lachlan Catchment
This study is the first large-scale, comprehensive assessment of frog communities and their habitat associations or requirements in the mid and lower Lachlan since the breaking of the Millennium Drought (circa 2010). As information on the distribution of frog species in the Lachlan is limited, the study will address some knowledge gaps which ultimately aims to inform stakeholder understanding of what conditions best aid frog survival, breeding and dispersal to ultimately improve management decisions and environmental water delivery in the future (with particular reference to managing for specific frog communities).
