Marine urban development: how can ecology inform the design of multifunctional artificial structures? This project aims to experimentally manipulate the design of artificial structures to achieve multipurpose ecological objectives. Artificial structures such as buildings and roads have featured in terrestrial urban landscapes for many years, but have only more recently begun encroaching on aquatic environments. Most marine artificial structures lack the innovative design solutions required to mi ....Marine urban development: how can ecology inform the design of multifunctional artificial structures? This project aims to experimentally manipulate the design of artificial structures to achieve multipurpose ecological objectives. Artificial structures such as buildings and roads have featured in terrestrial urban landscapes for many years, but have only more recently begun encroaching on aquatic environments. Most marine artificial structures lack the innovative design solutions required to mitigate their ecological impacts and provide essential ecosystem services such as pollution abatement. This project will investigate the efficacy of these designs with both classical measures of diversity and structure and novel measures of ecosystem function. The project aims to provide essential information to inform the design of future marine urban developments.Read moreRead less
Climate variability, water allocation and land use change impacts on surface-groundwater interactions and salinity discharge. This project contributes to the national research priority of an Environmentally Sustainable Australia and its three sub-priorities: Water-a critical resource; Overcoming salinity and acidity; and Responding to climate change and variability as well as to the National Water Initiative goal: connected surface and groundwater resources managed as a single resource. These em ....Climate variability, water allocation and land use change impacts on surface-groundwater interactions and salinity discharge. This project contributes to the national research priority of an Environmentally Sustainable Australia and its three sub-priorities: Water-a critical resource; Overcoming salinity and acidity; and Responding to climate change and variability as well as to the National Water Initiative goal: connected surface and groundwater resources managed as a single resource. These embody the clear imperative in Australia to improve the management and use of our stream and groundwater systems in the face of long-term climate variability and changing water use. Knowledge gained from this study of coupled surface-groundwater systems in nationally important catchments will be used to improve water allocation and use strategies and salinity mitigation. Read moreRead less
Immediate and delayed changes to survival, physiology, reproduction and movement of chondrichthyans following capture stress. Many sharks and rays are negatively affected by the impact of fisheries capture, with unknown consequences. The project will measure changes to survival, physiology, reproduction and behaviour following capture to better understand and manage the impact of fisheries on these animals. This information is vital for their effective conservation.
Long-term changes in Mackay Whitsunday water quality and connectivity between coral reefs and mangrove ecosystems. Declining water quality is implicated in the degradation of near-shore Great Barrier Reef (GBR) ecosystems. The goal of this project is to provide a definitive answer to the question of how GBR water quality has changed since European arrival (pre-1860). Using novel geochemical proxies in long-lived coral cores and innovative remote sensing techniques, we will develop quantitative h ....Long-term changes in Mackay Whitsunday water quality and connectivity between coral reefs and mangrove ecosystems. Declining water quality is implicated in the degradation of near-shore Great Barrier Reef (GBR) ecosystems. The goal of this project is to provide a definitive answer to the question of how GBR water quality has changed since European arrival (pre-1860). Using novel geochemical proxies in long-lived coral cores and innovative remote sensing techniques, we will develop quantitative histories of water quality and mangrove distribution change. This project will deliver the first integrated assessment of how coastal water quality and associated ecosystems have varied historically, which will be immediately applicable for long-term management of coastal ecosystems lining the GBR.Read moreRead less
Groundwater flow age distributions: Understanding open pit mine hydrology. This project aims to improve the estimation of the age of groundwater. Understanding groundwater age is critical for sustainable management and environmental tracers are increasingly used for this purpose. However, groundwater samples are inevitably mixtures of water of different ages. Since for most tracers the relationship between tracer concentration and age is not linear, different tracers can produce different mean a ....Groundwater flow age distributions: Understanding open pit mine hydrology. This project aims to improve the estimation of the age of groundwater. Understanding groundwater age is critical for sustainable management and environmental tracers are increasingly used for this purpose. However, groundwater samples are inevitably mixtures of water of different ages. Since for most tracers the relationship between tracer concentration and age is not linear, different tracers can produce different mean ages for the sample. This project aims to determine whether it is possible to determine moments of the groundwater age distributions from measurements made with different environmental tracers. The project also aims to examine whether the degree of heterogeneity within the aquifer can be determined from the disparity between ages obtained with different tracers. This project aims to tackle the largest problem with using groundwater chemistry to estimate water age – that mixing processes in the subsurface are never known. Solving this problem will allow much more accurate estimates of groundwater velocity and aquifer recharge rates. The groundwater industry contributes an estimated $6.8 billion per annum to the Australian economy, and this project will contribute to the sustainable management of the groundwater resource.Read moreRead less
Groundwater dynamics and surface water interactions in the Lower Murrumbidgee Catchment, New South Wales. Water is Australia's most limiting resource. This research will contribute to the sustainable management of groundwater resources in the regional and rural areas of the Lower Murrumbidgee catchment, an important agricultural and horticultural region of Australia. Strategies for sustainable use of water resources will be improved by understanding the impacts of irrigation on groundwater quali ....Groundwater dynamics and surface water interactions in the Lower Murrumbidgee Catchment, New South Wales. Water is Australia's most limiting resource. This research will contribute to the sustainable management of groundwater resources in the regional and rural areas of the Lower Murrumbidgee catchment, an important agricultural and horticultural region of Australia. Strategies for sustainable use of water resources will be improved by understanding the impacts of irrigation on groundwater quality and aquifer extractions. The project will train new scientists in current and new groundwater techniques and improve strategic linkages between the Industry and University sectors through support of student research and a Linkage Fellowship for the key industry partner participant.Read moreRead less
Functional links between estuaries and their catchments: How does land use change affect estuarine ecological and bio-geochemical function? Estuaries are iconic recreational areas of high ecological and socio-economic value. Estuarine health is strongly linked to the catchments that feed them, yet we have no detailed understanding of these links. This project will use a number of state of the art approaches to better understand how land use affects estuarine health.
The recovery of seagrass beds: the role of catchments and options for management responses. Seagrass beds once dominated tidal flats but are disappearing at an increasing rate due to human actions, both in Australia and around the world. This project will develop an understanding of the processes that cause these losses, the factors that prevent seagrass-bed re-establishment, and provide a framework for evaluating alternative management options.
Observed streamflow generation changes: better understanding and modelling. This Project aims to investigate drivers and triggers of variable streamflow response during and after drought and develop modelling strategies and model structures more robust to changing streamflow response. In many catchments during the Millennium Drought, streamflow generation was less than expected and hydrologic models performed poorly. After the drought, streamflow generation is yet to recover in some catchments. ....Observed streamflow generation changes: better understanding and modelling. This Project aims to investigate drivers and triggers of variable streamflow response during and after drought and develop modelling strategies and model structures more robust to changing streamflow response. In many catchments during the Millennium Drought, streamflow generation was less than expected and hydrologic models performed poorly. After the drought, streamflow generation is yet to recover in some catchments. This Project expects to generate new knowledge about variable streamflow response to drought and develop strategies and models to robustly simulate runoff during and after changed conditions, which should provide significant benefit via better understanding and modelling of streamflow response under changing conditions.Read moreRead less
Ecosystem resilience of Shark Bay under changing ocean climate. This project aims to investigate the resilience of the Shark Bay World Heritage Site to projected climate change. This project will generate new knowledge for marine conservation through analyses of habitat loss on nutrient budgets and productivity in seagrass and microbialite ecosystems. Expected outcomes are an improved understanding of climate-driven shifts on ecosystem processes in Shark Bay, incorporating science-based evidence ....Ecosystem resilience of Shark Bay under changing ocean climate. This project aims to investigate the resilience of the Shark Bay World Heritage Site to projected climate change. This project will generate new knowledge for marine conservation through analyses of habitat loss on nutrient budgets and productivity in seagrass and microbialite ecosystems. Expected outcomes are an improved understanding of climate-driven shifts on ecosystem processes in Shark Bay, incorporating science-based evidence for better conservation and management. This will provide significant benefits by contributing to the future-proofing of Shark Bay’s World Heritage values to climate change, and more broadly by demonstrating the consequences of the continued tropicalisation of Australia’s coastline.Read moreRead less