nccma-presentation to the environmental water inquiry · toxic blackwater events. return on...
TRANSCRIPT
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Inquiry into the Management, Governance and Use of Environmental Water
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Outline
• Our engagement framework• Working waterways• Enabling and complementary measures• Beneficial black water vs toxic blackwater events
• Return on the investment of environmental water
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Our engagement framework• We engage our community
through six EWAGs • Members nominate through
public EOI process – review biannually
• Diverse range of stakeholders including:– Local community– Irrigators– VRFish– FGA and other hunters– Birdlife Australia– Agencies
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Our engagement framework
• Input to annual water planning includes:– Local knowledge and
experience of:• Environmental, social and economic values
• How these systems have behaved hydrologically historically
• changes over time and threats and input to risk assessment
– Opportunities for shared benefits
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Achieving outcomes in working rivers
Rapid and extreme flow and water level fluctuations
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600 ML
400 ML
2 HRS 3 HRS
Achieving outcomes in working rivers
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Winter Flow
Achieving outcomes in working rivers
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Fish outcomes
LENGTH FREQUENCY DISTRIBUTION• Murray cod
Key:• TL: total length• Light blue: young-of-year• Orange dash: mature fish on right
Autumn 2013
Autumn 2013
Achieving outcomes in working rivers
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Enabling and complementary
measures
Pyramid Ck pre dredging
Dredging in Pyramid Ck, 1968
Pyramid Ck, 2017
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Habitat
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Fish lock structure
Connectivity & movement
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Beneficial blackwater and risk management
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Beneficial blackwater vs Toxic blackwater events
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Return on investment
• Environmental outcomes – rehabilitation of habitats to support high abundances and diversity of native species
• Recreational benefits – hunting, fishing, boating, amenity for camping and enjoying the outdoors
• Economic benefit to our regional communities• Cultural benefits – traditional owners practicing culture