Overview - CLLAMM technical briefing


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Sébastien Lamontagne presents the overview of the final CLLAMMecology technical briefing.

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Overview - CLLAMM technical briefing

  1. 1. HEADLINE TO BE PLACED IN THIS SPACE CLLAMMecology Overview Sébastien Lamontagne CSIRO Land and Water & Water for a Healthy Country Flagship CLLAMMecology Research Cluster partners:
  2. 2. The Coorong, Lower Lakes and Murray Mouth • Irrigated agriculture • Tourism and fisheries • Ramsar-listed wetland (1985) • Living Murray Icon site • Traditional country of the Ngarrindgeri
  3. 3. Ecological impacts • Low River Murray inflows due to diversion and a drought • Hypersalinisation of the Coorong • Siltation of Murray Mouth channel • Declining water level in the Lower Lakes
  4. 4. The need • CLLAMM workshop in 2004 with managers and scientists • Agreement that a tool was required to assess ecological impacts in the region • Several ecological knowledge gaps • Scope for management intervention mainly in the Coorong at that time
  5. 5. CLLAMMecology (2006–09) Improve ecological knowledge in the CLLAMM region • Emphasis on the Coorong • Some research on the Lower Lakes • Develop an ecological framework to guide management intervention in the Coorong
  6. 6. A “system” approach
  7. 7. CLLAMMecology components
  8. 8. Hydrodynamic model • Evaluates across the Coorong: • Water exchange • Water level • Salinity • Driven by: • Flow through barrages • USED flows • Wind and evaporation • Effective depth of Mouth channel • Suitable for longer-term (decades and centuries) scenario analyses
  9. 9. Design of Field Program • 12 focal field sites • Original aim: Study biological responses to barrage outflows • No freshwater inflows during the study (mid 2006-08) • An opportunity to study the system under extreme conditions
  10. 10. Outcomes • New ecological knowledge about the Coorong region • Robust ecological framework to guide management intervention in the Coorong • Linking management levers to ecological outcomes • Few similar examples in Australia or overseas
  11. 11. Recommendations • Use the framework to guide management intervention in the Coorong • Develop a similar framework for the Lower Lakes • Use future environmental flows to the Coorong as an opportunity to further learn about the system
  12. 12. How to use the Framework? Distribution of: • Food sources • Key fish and birds Climate and Hydrodynamic Distribution of Management Model potential habitats Scenarios Ecosystem state modelling
  13. 13. Acknowledgements • Funding agencies • Flagship Collaboration Fund • LWA, FRDC, MDBA (Living Murray) • Management Agencies • DWLBC, MDBA, DEH, SA MDB NRM Board • Geoscience Australia • Mike Geddes, Colin Creighton • Post-doctoral fellows • Support team for public events • Julie Francis, Helen Beringen, Scott Mills, Heather Riddell, John Goslino