The aim of this project is to predict the impact of mass carp mortality on the dissolved oxygen concentration of wetlands, rivers and floodplain habitats. This requires assessment of how the key processes that affect oxygen in these different environments respond to changes in hydrologic flushing, temperature and other environmental attributes, and consideration of the likelihood of carp accumulation. This modelling will be used to inform the cost-benefit analysis of the carp control program, aid assessment of what ecological and infrastructure assets are at greatest risk, and determine whether flow can be used as a strategy to re-aerate water in the event of hypoxia.