Appendix A - Case conceptual model for Silver Perch Species: Silver Bidyanus bidyanus (Terapontidae) EPBC Act status: Critically endangered and on the Qld Govt WetlandInfo indicator list (Silver perch Bidyanus – bidyanus, WetlandInfo, Department of Environment and Heritage Protection, Queensland, <>). Listed as Vulnerable under the Fisheries Management Act (NSW). Conceptual model goal: Identify main factors affecting attributes of Silver Perch (SP) such as body condition and population size in a section of the Mooki River with [full conceptual model] and without [control conceptual model] water-related impacts from coal seam gas and coal mining development. Bounds: Spatial scale: Mooki River at confluence with Quirindi Ck [includes consideration of migration movements]. Temporal persistence into foreseeable future (30-y project life, 50 y). Species’ biology notes: Mainly from ), ), ) and references therein. General: This species has been well studied in culture conditions but its natural ecology is poorly (NSW DPI 2006). They appear long-lived (aging studies up to 27 y ()). In wild, are sexually mature at 3 to 5 y (based on gonad examinations (). Natural range: Includes most of the Murray-Darling drainage division, excluding the cool, higher altitude upper reaches of streams on the western side of the Great Dividing Range (). In NSW, SP now absent from most of their natural range (NSW DPI 2006) and now there are very few self-sustaining populations (DSE 2005; NSW DPI 2006). Habitats: Include rivers and large streams, as well as lakes and impoundments. Occurs in cooler, clearer, upper reaches of the Murray-Darling River system on the eastern side of the Great
Appendix A - Case conceptual model for Silver Perch Species: Silver Bidyanus bidyanus (Terapontidae) EPBC Act status: Critically endangered and on the Qld Govt WetlandInfo indicator list (Silver perch – Bidyanus bidyanus, WetlandInfo, Department of Environment and Heritage Protection, Queensland, <>). Listed as Vulnerable under the Fisheries Management Act (NSW). Conceptual model goal: Identify main factors affecting attributes of Silver Perch (SP) such as body condition and population size in a section of the Mooki River with [full conceptual model] and without [control conceptual model] water-related impacts from coal seam gas and coal mining development. Bounds: Spatial scale: Mooki River at confluence with Quirindi Ck [includes consideration of migration movements]. Temporal persistence into foreseeable future (30-y project life, 50 y). Species’ biology notes: Mainly from ), ), ) and references therein. General: This species has been well studied in culture conditions but its natural ecology is poorly (NSW DPI 2006). They appear long-lived (aging studies up to 27 y ()). In wild, are sexually mature at 3 to 5 y (based on gonad examinations (). Natural range: Includes most of the Murray-Darling drainage division, excluding the cool, higher altitude upper reaches of streams on the western side of the Great Dividing Range (). In NSW, SP now absent from most of their natural range (NSW DPI 2006) and now there are very few self-sustaining populations (DSE 2005; NSW DPI 2006). Habitats: Include rivers and large streams, as well as lakes and impoundments. Occurs in cooler, clearer, upper reaches of the Murray-Darling River system on the eastern side of the Great
modelling-water-related-ecological-responses-csg-extraction.docx