Page 237 - VEWH Seasonal Watering Plan 2020-21
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 Table 5.2.14 Potential environmental watering actions and objectives for the Lindsay, Mulcra and Wallpolla islands
(continued)
Potential environmental watering action
Crankhandle (complete fill in spring)
Lake Wallawalla (partial fill in autumn/winter)
Functional watering objectives
• Provide shallow-water habitat to provide foraging and breeding opportunities for frogs
• Provide conditions for lake bed herbaceous plants to grow in the drying phase after watering
• Fill to the wetland fringe to increase the growth of shrubs and lignum on the wetland fringe
• Provide shallow-water habitat, open-water habitat and shoreline habitat to create foraging opportunities for waterbirds, frogs and turtles
• Break the dormancy of yabbies so they emerge from burrows, feed and reproduce
• Provide conditions for lake bed herbaceous plants to grow in the drying phase after watering
Environmental objectives
5.2 Victorian Murray system
                              Mulcra Island – Potterwalkagee Creek
    Winter/spring fresh
(one fresh of 90-475 ML/day via the Stoney Crossing regulator and 440 ML/day via the upper Potterwalkagee Creek regulator for a maximum of five months during September to November)
Mulcra Island – wetlands
Mulcra Horseshoe (complete fill in spring)
Mulcra Island floodplain (floodplain inundation
in spring)
Snake Lagoon (complete fill on spring)
• Provide temporary flowing water to reconnect pools and support dispersal, spawning and recruitment opportunities for native fish
• Wet the substrate and debris (snags) close to the bank to promote the growth of biofilms, which provide a food source for animals higher in the food chain
• Maintain soil moisture to maintain the condition of streamside vegetation
• Provide shallow-water habitat and open-water habitat to create foraging and breeding opportunities for waterbirds, frogs and turtles
• Provide a connection to the Murray River to support dispersal, spawning and recruitment opportunities for native fish
• Stimulate the growth of emergent, aquatic and streamside vegetation
• Provide a connection to the Murray River to allow the exchange of carbon, nutrients between the floodplain and the river
• Stimulate the growth of emergent, aquatic and streamside vegetation
• Provide shallow-water habitat and open-water habitat to create foraging and breeding opportunities for waterbirds, frogs and turtles
• Support fish spawning events and provide temporary habitat for juvenile fish
• Stimulate growth of emergent, aquatic and streamside vegetation
• Provide conditions for lake bed herbaceous plants to grow in the drying phase after watering
                                                           Victorian Environmental Water Holder | Seasonal Watering Plan 2020–21 | 235
































































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