production with little enhancement from external supplies that dissolved oxygen levels? could have further increased food supplies. Oxygen concentrations did not fall below acceptable levels (>50% saturation) (Ye et al. 2017, Table 1) Fish (channel) (Cat I) None specified There are no KEQ for this indicator at the SA scale; however, fish monitoring data are consolidated to evaluate a number of fish targets of (Ye et al. 2017). DEWNR’s LTWP Hydrological Regime What did CEW contribute to: Some increase in velocities in winter and spring with CEW. (Cat III) Some variability achieved in weir pools state if on Hydraulic diversity within weir – can’t really track as no expected outcomes stated, but suspect this pools? indicator is probably okay. Variability in water levels within weir pools? Matter Transport(Cat What did CEW contribute to: Increased salt transport through and out of system, only minor III) changes in concentrations. Also some transport of nutrients. salinity levels and transport? nutrient concentrations and transport? No impact on concentrations, but transport did occur concentrations and transport of phytoplankton? Increased exchange of nutrients and phytoplankton between ecosystem function? critical habitats possibly influenced ecosystem function but – early days. Reduced salinity concentrations in particular may have water quality to support aquatic improved conditions in the Lower Lakes and Murray Mouth biota and normal (Ye et al. 2017). biogeochemical processes? Microinvertebrates What did CEW contribute: Peak diversity matched peaks in river discharge and CEW. (Cat III) Most taxa were transported taxa from floodplain or riparian to microinvertebrate sources (e.g. Chowilla) Ye et al. (2017). diversity? Likely to be achieved some indication of taxa being via upstream connectivity to – transported from upstream, but could also be from lateral microinvertebrate connections (Ye et al. 2017). communities of the LMR Selected Area? Relationship could not be determined. to the timing and presence of key species in relation to diet of large-bodied native fish larvae (e.g. golden perch)?
dissolved oxygen levels? production with little enhancement from external supplies that could have further increased food supplies. Oxygen concentrations did not fall below acceptable levels (>50% saturation) (Ye et al. 2017, Table 1) Fish (channel) (Cat I) None specified There are no KEQ for this indicator at the SA scale; however, fish monitoring data are consolidated to evaluate a number of fish targets of DEWNR’s LTWP (Ye et al. 2017). Hydrological Regime (Cat III) What did CEW contribute to: Hydraulic diversity within weir pools? Variability in water levels within weir pools? Some increase in velocities in winter and spring with CEW. Some variability achieved in weir pools – can’t really state if on track as no expected outcomes stated, but suspect this indicator is probably okay. Matter Transport(Cat III) What did CEW contribute to: salinity levels and transport? nutrient concentrations and transport? Increased salt transport through and out of system, only minor changes in concentrations. Also some transport of nutrients. concentrations and transport of phytoplankton? No impact on concentrations, but transport did occur ecosystem function? Increased exchange of nutrients and phytoplankton between critical habitats possibly influenced ecosystem function – but early days. water quality to support aquatic biota and normal biogeochemical processes? Reduced salinity concentrations in particular may have improved conditions in the Lower Lakes and Murray Mouth (Ye et al. 2017). Microinvertebrates (Cat III) What did CEW contribute: to microinvertebrate diversity? Peak diversity matched peaks in river discharge and CEW. Most taxa were transported taxa from floodplain or riparian sources (e.g. Chowilla) Ye et al. (2017). via upstream connectivity to microinvertebrate communities of the LMR Selected Area? Likely to be achieved – some indication of taxa being transported from upstream, but could also be from lateral connections (Ye et al. 2017). to the timing and presence of key species in relation to diet of large-bodied native fish larvae (e.g. golden perch)? Relationship could not be determined.