Properly measuring fundamental ecological processes is an essential requirement in successfully managing an ecosystem and assessing how it might respond to a change in its status quo.
This project proposes to measure in-stream primary productivity and ecosystem respiration over a three-year period using replicate in situ perspex chambers and attached data-loggers at several sites in south Western Australia. Rates of detrital breakdown will also be assessed across a salinity gradient using leaf packs.
Project aims
The project thus aims to further our understanding of the effects of differing salinities on fundamental ecological processes of riverine systems by exploring the relationship between primary productivity and salinity levels. In particular, the project would:
- identify critical levels at which significant changes in in-stream primary productivity/ ecosystem respiration occur
- assess rates of organic matter breakdown across a gradient of salinity
- make recommendations regarding target levels for salt concentrations in rivers aimed at maintaining rates of primary productivity and ecosystem respiration within guideline values that enable proper ecosystem function.
Centre of Excellence in Natural Resource Management
University information
CRICOS Code: 00126G
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