Category 1: Native bony herring and carp gudgeons dominated the large-bodied and This indicator was not evaluated at the local scale Fish (channel) fish assemblages, respectively. Other small-bodied species sampled (Selected Area). It was designed to provide data for Basin-scale evaluation. included the invasive Gambusia and native unspecked hardyhead and Murray rainbowfish. Other large-bodied species sampled included the invasive common carp and natives golden perch, Murray cod, freshwater catfish and silver perch. Category 3: What did CEW contribute to: The increase in flow (discharge) to SA due to CEW from 5,200–6,700 ML day-1 to Hydrological 9,000–10,000 ML day-1 from October to November 2014 and again from January to Help increase hydraulic diversity within weir pools? Regime Increased median velocity up to 0.07 m s1 over the March 2015 resulted in an increase in water level in the order of 0.2 m in the upper year compared to without CEW, with some cross reaches of each weir pool. sections in the weir pool transforming into moderate-flowing habitat for large-bodied fish. Over the same period, CEW contributed to the increase in median velocity in the Help increase water levels within weir pools? weir pool generally from ~0.1 m s-1 to ~0.15 m s-1 depending on the weir pool Increases in water levels in weir pools of up to 0.2 m (lower weir pools tended to have slightly slower velocities). Velocities for some cross in the upper reaches. Periodic increases in water levels could improve the condition of riparian sections in the LMR increased into the range representing moderate-flowing habitat vegetation and increase biofilm diversity. for large-bodied fish due to CEW.
Category 1: Fish (channel) This indicator was not evaluated at the local scale (Selected Area). It was designed to provide data for Basin-scale evaluation. Native bony herring and carp gudgeons dominated the large-bodied and fish assemblages, respectively. Other small-bodied species sampled included the invasive Gambusia and native unspecked hardyhead and Murray rainbowfish. Other large-bodied species sampled included the invasive common carp and natives golden perch, Murray cod, freshwater catfish and silver perch. Category 3: Hydrological Regime What did CEW contribute to: Help increase hydraulic diversity within weir pools? Increased median velocity up to 0.07 m s1 over the year compared to without CEW, with some cross sections in the weir pool transforming into moderate-flowing habitat for large-bodied fish. Help increase water levels within weir pools? Increases in water levels in weir pools of up to 0.2 m in the upper reaches. Periodic increases in water levels could improve the condition of riparian vegetation and increase biofilm diversity. The increase in flow (discharge) to SA due to CEW from 5,200–6,700 ML day-1 to 9,000–10,000 ML day-1 from October to November 2014 and again from January to March 2015 resulted in an increase in water level in the order of 0.2 m in the upper reaches of each weir pool. Over the same period, CEW contributed to the increase in median velocity in the weir pool generally from ~0.1 m s-1 to ~0.15 m s-1 depending on the weir pool (lower weir pools tended to have slightly slower velocities). Velocities for some cross sections in the LMR increased into the range representing moderate-flowing habitat for large-bodied fish due to CEW.