Habitat, water quality and the larval ecology of Murray cod
There are many gaps in our understanding of the flow dependent ecological requirements of Murray cod in upland systems in general and particularly in the upper Murrumbidgee River. There is no current ecological information on the relative abundance, habitat requirements, or reproductive ecology of Murray cod in upland environments, with such information central to assessing the effects of flow regulation on the species. There are also many gaps in our understanding of the flow – physical habitat relationships and the flow – water quality relationships in the Murrumbidgee River that would allow some predictions of ecological responses. This research program encompasses four key areas of investigation: 1) flow in affected reaches of the Murrumbidgee River, 2) Dissolved oxygen and retention times in pools in affected reaches of the Murrumbidgee River; 3) Geomorphic characterisation of the Murrumbidgee River along affected reaches and 4) Spawning and larval ecology of upland Murray cod.