Table 11 Site-specific ecological targets and associated flow indicators for the Lower Gwydir/Gingham Channel and Mallowa management units Without-development and baseline event Site-Specific Flow Indicators frequencies Proportion of years Site-Specific Ecological Targets Proportion of years event event occurred under Proportion of years required to achieve target Inflow Duration Timing event occurs under required Low High modelled baseline uncertainty uncertainty conditions conditions Lower Gwydir/Gingham Channel management unit (Gwydir River at the Yarraman Bridge gauge) Provide a flow regime which ensures the current extent of 45 GL total Over max 90% 80% 67% 70% native vegetation of the riparian, floodplain and wetland volume 60 days communities is sustained in a healthy, dynamic and 60 GL total Over max resilient condition 70% 60% 57% 63% volume 60 days Provide a flow regime which supports the habitat requirements of waterbirds and is conducive to successful 80 GL total Over max October to 50% 40% 50% 46% breeding of colonial nesting waterbirds volume 60 days March Provide a flow regime which supports recruitment 150 GL total Over max opportunities for a range of native aquatic species (e.g. 30% 20% 29% 20% volume 60 days fish, frogs, turtles and invertebrates) Provide a flow regime which supports key ecosystem 250 GL total Over max functions, particularly those related to connectivity between 12% 12% 14% 11% volume 60 days the river and the floodplain Provide a flow regime which supports recruitment Oct to Jan 150 ML/d 45 days 85% 85% 38% 81% opportunities for a range of native aquatic species (e.g. fish, frogs, turtles and invertebrates) Oct to Jan 1,000 ML/d 2 days 85% 85% 89% 85% Without-development and current Site-Specific Ecological Targets Site-Specific Flow Indicators development event frequencies
Table 11 Site-specific ecological targets and associated flow indicators for the Lower Gwydir/Gingham Channel and Mallowa management units Site-Specific Ecological Targets Site-Specific Flow Indicators Without-development and baseline event frequencies Inflow required Duration Timing Proportion of years event required to achieve target Proportion of years event occurred under conditions Proportion of years event occurs under modelled baseline conditions Low uncertainty High uncertainty Lower Gwydir/Gingham Channel management unit (Gwydir River at the Yarraman Bridge gauge) Provide a flow regime which ensures the current extent of native vegetation of the riparian, floodplain and wetland communities is sustained in a healthy, dynamic and resilient condition Provide a flow regime which supports the habitat requirements of waterbirds and is conducive to successful breeding of colonial nesting waterbirds Provide a flow regime which supports recruitment opportunities for a range of native aquatic species (e.g. fish, frogs, turtles and invertebrates) Provide a flow regime which supports key ecosystem functions, particularly those related to connectivity between the river and the floodplain 45 GL total volume Over max 60 days October to March 90% 80% 67% 70% 60 GL total volume Over max 60 days 70% 60% 57% 63% 80 GL total volume Over max 60 days 50% 40% 50% 46% 150 GL total volume Over max 60 days 30% 20% 29% 20% 250 GL total volume Over max 60 days 12% 12% 14% 11% Provide a flow regime which supports recruitment opportunities for a range of native aquatic species (e.g. fish, frogs, turtles and invertebrates) 150 ML/d 45 days Oct to Jan 85% 85% 38% 81% 1,000 ML/d 2 days Oct to Jan 85% 85% 89% 85% Site-Specific Ecological Targets Site-Specific Flow Indicators Without-development and current development event frequencies