Table 4 Site-specific ecological targets and associated flow indicators for in-channel flows: Lower Goulburn River Without-development and baseline Site-Specific Flow Indicators event frequencies Proportion of Proportion of Frequency - proportion of Flow years event years event Site-Specific Ecological Targets years event required required occurred under occurred (measured at Duration Timing modelled under Shepparton; modelled Low High ML/d) baseline uncertainty uncertainty (%) (%) conditions (%) conditions (%) Provide a flow regime which supports October to 5,000 14 days (continuous) 66 49 82 28 recruitment opportunities for a range of November native aquatic species (e.g. fish, frogs, turtles, invertebrates) 8 day total duration Provide a flow regime which supports key comprised of 2 events December ecosystem functions, particularly those 2,500 each a minimum of 4 48 36 60 10 to April related to longitudinal connectivity and days with at least 30 days transport of sediment, nutrients and carbon separating the events Note: Multiplication of the flow rate by the duration and frequency (proportion of years event required) does not translate into the additional volume of water the site needs to be environmentally sustainable. This is because part of the required flow is already provided under baseline conditions. Additional environmental water required is the amount over and above the baseline flows.
Table 4 Site-specific ecological targets and associated flow indicators for in-channel flows: Lower Goulburn River Site-Specific Ecological Targets Site-Specific Flow Indicators Without-development and baseline event frequencies Flow required (measured at Shepparton; ML/d) Duration Timing Frequency - proportion of years event required Proportion of years event occurred under modelled conditions (%) Proportion of years event occurred under modelled baseline conditions (%) Low uncertainty (%) High uncertainty (%) Provide a flow regime which supports recruitment opportunities for a range of native aquatic species (e.g. fish, frogs, turtles, invertebrates) Provide a flow regime which supports key ecosystem functions, particularly those related to longitudinal connectivity and transport of sediment, nutrients and carbon 5,000 14 days (continuous) October to November 66 49 82 28 2,500 8 day total duration comprised of 2 events each a minimum of 4 days with at least 30 days separating the events December to April 48 36 60 10 Note: Multiplication of the flow rate by the duration and frequency (proportion of years event required) does not translate into the additional volume of water the site needs to be environmentally sustainable. This is because part of the required flow is already provided under baseline conditions. Additional environmental water required is the amount over and above the baseline flows.
EWR-Lower-Goulburn-River.docx