Stage 2 Survey – Specific site Physical assessment: investigations hydrology spring inundation, stable in summer location confirm Stage 1 through ground truth habitat (broad) under appropriate management regime habitat (specific) high stable cover and aquatic plants water quality EC <7000; not anoxic; low P and N fish survey no/few introduced fish found, or existing PSG macroinvertebrates diversity and abundance of prey items Stage 3 Preparation – Undertake any possible Targeted restoration: actions with appropriate hydrology undertake risk assessment/permit applications approvals habitat (broad) secure e-water allocation/provision habitat (specific) fencing/restoration of riparian zone /add physical habitat, establish aquatic plants water quality address point source and diffuse inputs introduced fishes initiate eradication/control programs macroinvertebrates supplement missing species/habitat diversity Stage 4 Reintroduction – Reduce high initial Soft release: mortality permits in place prior to release pre-treatment possible reduction of fish at release site cage holding cage added at selected release point/s acclimatisation add fish to cage, allow adjustment period release provide exit point from cage Stage 5 Adaptive management – Provide the best chance Monitoring & ongoing action: for survival fish research assess survival and changes in fish community macroinvertebrates assess temporal trends habitat survey physical cover and vegetation trends water quality ongoing testing of key parameters action use monitoring to refine management response
Stage 2 – Survey Specific site investigations Physical assessment: hydrology location habitat (broad) habitat (specific) water quality fish survey macroinvertebrates spring inundation, stable in summer confirm Stage 1 through ground truth under appropriate management regime high stable cover and aquatic plants EC <7000; not anoxic; low P and N no/few introduced fish found, or existing PSG diversity and abundance of prey items Stage 3 – Preparation Undertake any possible actions with appropriate approvals Targeted restoration: hydrology habitat (broad) habitat (specific) water quality introduced fishes macroinvertebrates undertake risk assessment/permit applications secure e-water allocation/provision fencing/restoration of riparian zone /add physical habitat, establish aquatic plants address point source and diffuse inputs initiate eradication/control programs supplement missing species/habitat diversity Stage 4 – Reintroduction Reduce high initial mortality Soft release: permits pre-treatment cage acclimatisation release in place prior to release possible reduction of fish at release site holding cage added at selected release point/s add fish to cage, allow adjustment period provide exit point from cage Stage 5 – Adaptive management Provide the best chance for survival Monitoring & ongoing action: fish research macroinvertebrates habitat water quality action assess survival and changes in fish community assess temporal trends survey physical cover and vegetation trends ongoing testing of key parameters use monitoring to refine management response
PSG-final-corporate-style.docx