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Environmental Water Allocation required to sustain macroinvertebrate species in ephemeral streams

Project Objectives: To determine the key drought refuges used by macroinvertebrate species in intermittently-flowing streams and determine the level of threat to each refuge posed by prolonged drying and unpredictable flow regimes To determine the role played by different types of drought refuge in restocking macroinvertebrate populations in rivers and therefore the consequences for river communities of loss of each type of drought refuge. To determine the (more)...

Targeting endocrine disruptors in Australia's waterways

When the media reported the intriguing story of ‘gender bending’ chemicals causing fish in UK streams to develop male and female sex organs, research teams began to investigate the cause. The gender benders, actually endocrine disrupting chemicals (EDCs), were mainly natural and man-made hormones excreted by humans, and some industrial chemicals. Even in trace amounts, the EDCs alter levels of hormones and specific proteins. This in turn causes intersex (both (more)...

The Impact of Groundwater Use on Australia

Exploring the technical, management and policy challenges - summary report

Groundwater and surface water resources are often closely linked. This has particular implications for Australia and how we manage our water. As a result of this connectivity it is possible to allocate the same resource twice, to surface water users and to groundwater users. This double allocation of the same water has reduced the flow in our rivers and streams. There has never been a nationwide review of surface water and groundwater interaction in Australia and consequently the extent of (more)...