Page 163 - VEWH Seasonal Watering Plan 2020-21
P. 163

 Table 4.3.1 Potential environmental watering actions and objectives for the Wimmera system (continued)
4.3 Wimmera system
   Potential environmental Functional watering objectives watering action
Environmental objectives
 Lower Mount William Creek
Year-round low flow (five • ML/day or natural)
Maintain edge habitats and shallow-water habitat for waterbugs and endemic fish
         • Maintain soil moisture for streamside vegetation and near-permanent wetted stream channel for aquatic vegetation and to prevent the growth of terrestrial plants in the stream bed
        Summer/autumn freshes •
Prevent a decline in water quality by flushing pools during low flow
    (three freshes of 20-30 ML/ day for two to seven days during December to May)
• Provide variable flows and increase habitat availability during the low-flow season for waterbugs and fish
         Winter/spring fresh (one • to five freshes of 100 ML/
Wet benches to entrain organic debris and increase habitat availability for native fish
     day for one to seven days during June to November)
Dock Lake
Winter/spring partial fill •
• Flush surface sediments from hard substrates to support waterbugs
• Wet the streamside zone to maintain its condition and facilitate the recruitment of streamside vegetation communities
          Maintain and improve the diversity and abundance of wetland vegetation
  • Support feeding and breeding habitat for waterbirds, frogs, waterbugs and turtles
            Ranch Billabong
   Top-ups (winter/spring and •
summer/autumn)
Maintain and improve wetland vegetation diversity and abundance • Improve water quality for frogs and waterbirds
        Victorian Environmental Water Holder | Seasonal Watering Plan 2020–21 | 161









































































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