'Near to final' draft for independent review - 2 May 2016 Table E1. Site-specific flow indicators for ecological function of longitudinal connectivity in the Barwon- Darling UEA. In this table, frequency is the percentage of years in which there is a watering event Frequency Ecological target Example related to Flow Magnitude: Duration Timing ecological function of indicator flow (ML/d) (days) Low High longitudinal connectivity gauge uncertainty uncertainty Provide a flow regime which: Small scale fish Bourke 6,000 14 Minimum of 1 event at 90% 80% supports recruitment any time of year movement / regular opportunities for a range access to habitat of Louth 6,000 20 70% 70% native aquatic species (e.g. Some fish recruitment / Minimum of 1 event regular access to between August and fish, frogs, turtles, habitat May invertebrates) In-stream primary Wilcannia 6,000 7 Minimum of 2 events at 60% 45% supports the habitat productivity any time of year requirements of waterbirds Fish migration Bourke 10,000 14 Minimum of 1 event 80% 60% ensures the current extent of native vegetation of the between August and May riparian, floodplain and Bourke 10,000 20 35% 25% Fish recruitment Minimum of 2 event wetland communities is (targeting flow between August and sustained in a healthy, dependent) May dynamic and resilient condition Fish recruitment Louth 21,000 20 40% 40% supports key ecosystem Minimum of 1 event functions, particularly those (targeting in-channel between August and related to connectivity between specialists such as May Murray cod) the river and the floodplain Wilcannia 20,000 7 60% 45% In-stream primary Minimum of 1 event at productivity any time of year With regard to the frequency statistic, low uncertainty means a high chance that the associated ecological targets will be achieved, with high uncertainty 1 representing a boundary beyond which there is a high likelihood that the associated ecological targets will not be achieved. (Discussed in section 2.2.5) Page 5
'Near to final' draft for independent review - 2 May 2016 Table E1. Site-specific flow indicators for ecological function of longitudinal connectivity in the Barwon- Darling UEA. In this table, frequency is the percentage of years in which there is a watering event Ecological target Example related to ecological function of longitudinal connectivity Flow indicator gauge Magnitude: flow (ML/d) Duration (days) Timing Frequency Low High uncertainty uncertainty Provide a flow regime which: supports recruitment opportunities for a range of Small scale fish movement / regular access to habitat Bourke 6,000 14 Minimum of 1 event at any time of year 90% 80% native aquatic species (e.g. fish, frogs, turtles, invertebrates) Some fish recruitment / regular access to habitat Louth 6,000 20 Minimum of 1 event between August and May 70% 70% supports the habitat requirements of waterbirds In-stream primary productivity Wilcannia 6,000 7 Minimum of 2 events at any time of year 60% 45% ensures the current extent of native vegetation of the riparian, floodplain and Fish migration Bourke 10,000 14 Minimum of 1 event between August and May 80% 60% wetland communities is sustained in a healthy, dynamic and resilient condition Fish recruitment (targeting flow dependent) Bourke 10,000 20 Minimum of 2 event between August and May 35% 25% supports key ecosystem functions, particularly those related to connectivity between the river and the floodplain Fish recruitment (targeting in-channel specialists such as Murray cod) Louth 21,000 20 Minimum of 1 event between August and May 40% 40% In-stream primary productivity Wilcannia 20,000 7 Minimum of 1 event at any time of year 60% 45% 1 With regard to the frequency statistic, low uncertainty means a high chance that the associated ecological targets will be achieved, with high uncertainty representing a boundary beyond which there is a high likelihood that the associated ecological targets will not be achieved. (Discussed in section 2.2.5) Page 5