3. Can the hydraulic Quantify hydraulic Intervention Bunyip & Grayling Hydraulics Regional MW The life cycles of cues (e.g. water cues velocity, Barwon/ & freshwater fish are Golden perch Spawning CMAs velocity) that influence turbulence, depth, Statewide intimately linked to Moorabool Silver perch VEWH? key fish life-history distribution) hydrological regimes and Goulburn processes (e.g. hydraulic complexity (fast Murray cod with transect spawning, dispersal) be and slow flowing Glenelg application of Tupong MDBA quantified during an Identification of the Acoustic Doppler Campaspe and and used to hydraulic drivers (e.g. Eels Current Profiler predict fish outcomes in water velocity; rather than Loddon (ADCP) Australian are other reaches and ML/d) of key life-history bass rivers? events (e.g. spawning) is in this important for transferring Estuary perch initiative. hydraulic recommendations among catchments (as simple ML/d discharge metrics are not transferrable among reaches/catchments). This question could likely be answered as a of others. 4. Does environmental Winter and spring Intervention Thomson Australian Age structure Catchment CMAs FV are stocking bass into flow management fresh events with bass some coastal catchments. Macalister Distribution FV enhance survival and duration and Some parts of bass movement of a stocked 50% exceedance (spawning & diadromous fish? flow. movement) are mediated by flow events. Quantify hydraulic Monitoring potential cues (water velocity, of turbulence) populations via flow event based monitoring - could be a value add to similar monitoring for grayling/tupong. 5. Does environmental Small spring fresh Intervention Wimmera Golden Migration Catchment CMAs The Wimmera and flow management (e.g. to 80% several northern Gunbower Catfish Age structure FV enhance survival and bankfull) with low tributaries have Loddon Murray cod? Growth / survival movement of a stocked variation (10-14-day considerable annual freshwater fish? duration) to enhance stocking effort. Campaspe Distribution
3. Can the hydraulic cues (e.g. water velocity) that influence key fish life-history processes (e.g. spawning, dispersal) be quantified during an and used to predict fish outcomes in other reaches and rivers? Quantify hydraulic cues velocity, turbulence, depth, distribution) with transect application of Acoustic Doppler Current Profiler (ADCP) Intervention Bunyip & Barwon/ Moorabool Goulburn Glenelg Campaspe Loddon Grayling Golden perch Silver perch Murray cod Tupong Eels Australian bass Estuary perch Hydraulics Spawning Regional & Statewide MW CMAs VEWH? MDBA and are in this initiative. The life cycles of freshwater fish are intimately linked to hydrological regimes and hydraulic complexity (fast and slow flowing Identification of the hydraulic drivers (e.g. water velocity; rather than ML/d) of key life-history events (e.g. spawning) is important for transferring hydraulic recommendations among catchments (as simple ML/d discharge metrics are not transferrable among reaches/catchments). This question could likely be answered as a of others. 4. Does environmental flow management enhance survival and movement of a stocked diadromous fish? Winter and spring fresh events with duration and 50% exceedance flow. Quantify hydraulic cues (water velocity, turbulence) Intervention Thomson Macalister Australian bass Age structure Distribution Catchment CMAs FV FV are stocking bass into some coastal catchments. Some parts of bass (spawning & movement) are mediated by flow events. Monitoring potential of populations via flow event based monitoring - could be a value add to similar monitoring for grayling/tupong. 5. Does environmental flow management enhance survival and movement of a stocked freshwater fish? Small spring fresh (e.g. to 80% bankfull) with low variation (10-14-day duration) to enhance Intervention Wimmera Gunbower Loddon Campaspe Golden Catfish Murray cod? Migration Age structure Growth / survival Distribution Catchment CMAs FV The Wimmera and several northern tributaries have considerable annual stocking effort.
VEFMAP-Stage-6-Part-A-manual-Program-context-and-rationale.docx