Figure 1: Environmental demand and water available influence the purpose of Commonwealth environmental water management Table 2: Environmental outcomes in scope under different ‘purposes’ Avoid damage: Avoid Protect: Ensure Maintain: Maintain Improve: Improve the damage to ecological capacity for ecological health and health and resilience of environmental assets recovery resilience aquatic ecosystems / build future capacity to support ecological health and resilience Broad Avoid critical loss of Support the survival Enable growth, Enable growth, environmental species, communities and viability of reproduction and reproduction and outcomes in and ecosystems threatened species small-scale large-scale scope and communities recruitment for a recruitment for a Maintain key refuges diverse range of flora diverse range of flora Maintain refuges and fauna and fauna Avoid irretrievable damage or Support key Promote low-lying Promote and sustain catastrophic events ecosystem functions. floodplain-river higher floodplain-river connectivity connectivity Support medium flow Support high flow river river and floodplain and floodplain functional processes functional processes <1 year Vegetation condition expected Vegetation reproduction, germination and dispersal outcomes in Fish condition scope Fish larval abundance and reproduction Waterbird survival and condition Waterbird chicks and fledglings Other vertebrate young Hydrological connectivity including end of system flows (Longitudinal) (Lateral) Biotic dispersal and movement Sediment transport Primary productivity; decomposition; nutrient and carbon cycling Individual survival and condition (inc refuges) Individual condition (ecosystem resistance) Salinity; dissolved oxygen; pH; dissolved organic carbon; algal blooms
Figure 1: Environmental demand and water available influence the purpose of Commonwealth environmental water management Table 2: Environmental outcomes in scope under different ‘purposes’ Avoid damage: Avoid damage to environmental assets Protect: Ensure ecological capacity for recovery Maintain: Maintain ecological health and resilience Improve: Improve the health and resilience of aquatic ecosystems / build future capacity to support ecological health and resilience Broad environmental outcomes in scope Avoid critical loss of species, communities and ecosystems Maintain key refuges Avoid irretrievable damage or catastrophic events Support the survival and viability of threatened species and communities Maintain refuges Support key ecosystem functions. Enable growth, reproduction and small-scale recruitment for a diverse range of flora and fauna Promote low-lying floodplain-river connectivity Support medium flow river and floodplain functional processes Enable growth, reproduction and large-scale recruitment for a diverse range of flora and fauna Promote and sustain higher floodplain-river connectivity Support high flow river and floodplain functional processes <1 year expected outcomes in scope Vegetation condition Vegetation reproduction, germination and dispersal Fish condition Fish larval abundance and reproduction Waterbird survival and condition Waterbird chicks and fledglings Other vertebrate young Hydrological connectivity including end of system flows (Longitudinal) (Lateral) Biotic dispersal and movement Sediment transport Primary productivity; decomposition; nutrient and carbon cycling Individual survival and condition (inc refuges) Individual condition (ecosystem resistance) Salinity; dissolved oxygen; pH; dissolved organic carbon; algal blooms
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