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Discovery Early Career Researcher Award - Grant ID: DE120101290
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Unravelling the transformation pathways and fate of dissolved organic carbon and nitrogen in shallow coastal sediments. This project will significantly advance our understanding of the cycling of dissolved organic carbon and dissolved organic nitrogen in shallow coastal sediments, a potentially major part of global carbon and nitrogen cycles. This will have direct implications for the management and protection of Australian coastal systems and the world's oceans.
Unravelling the legacy of groundwater pollution to coastal waters. This project aims to resolve whether groundwater polluted decades ago is now seeping out along shorelines, and driving coastal water quality. The project will challenge common assumptions about the sources of chemical pollution to Australian coastal waters using a combination of cutting-edge analytical techniques, modelling, and laboratory investigations. The outcomes of the project will support the development of pollutant budge ....Unravelling the legacy of groundwater pollution to coastal waters. This project aims to resolve whether groundwater polluted decades ago is now seeping out along shorelines, and driving coastal water quality. The project will challenge common assumptions about the sources of chemical pollution to Australian coastal waters using a combination of cutting-edge analytical techniques, modelling, and laboratory investigations. The outcomes of the project will support the development of pollutant budgets and models required for the effective creation of water management solutions. As a result, the project will benefit the management of iconic waterways experiencing persistent, unresolved water quality issues which are costing the government billions of dollars.Read moreRead less
Microbiology of a tropical creek impacted by sewage effluent: novel assessment using N-cycle functional markers and changes in community composition. Although most of Darwin Harbour has good water quality, there is much concern about local 'hot spots' where sewage has degraded ecosystem processes and values. As no bio-indicators of tropical marine water and sediment quality are known, the project will identify functional markers and microbial indicators of stress for integrated environmental mo ....Microbiology of a tropical creek impacted by sewage effluent: novel assessment using N-cycle functional markers and changes in community composition. Although most of Darwin Harbour has good water quality, there is much concern about local 'hot spots' where sewage has degraded ecosystem processes and values. As no bio-indicators of tropical marine water and sediment quality are known, the project will identify functional markers and microbial indicators of stress for integrated environmental monitoring.Read moreRead less
Seagrass denitrification: importance for global nitrogen budgets. The objective of this project is to use cutting-edge techniques to measure denitrification rates in communities dominated by different tropical and temperate seagrass species. Denitrification is a globally significant critical ecosystem process, but it is poorly understood in seagrass communities. This project is significant because of the potential importance of seagrass communities for nitrogen loss via denitrification in coasta ....Seagrass denitrification: importance for global nitrogen budgets. The objective of this project is to use cutting-edge techniques to measure denitrification rates in communities dominated by different tropical and temperate seagrass species. Denitrification is a globally significant critical ecosystem process, but it is poorly understood in seagrass communities. This project is significant because of the potential importance of seagrass communities for nitrogen loss via denitrification in coastal systems and the importance of coastal systems in the global nitrogen budget. The expected outcomes of this study may significantly advance our understanding of the functioning of coastal systems and global nitrogen budgets.Read moreRead less
Unravelling the drivers of greenhouse gas emissions in estuaries. The aim of this project is to understand and quantify the factors controlling the emission of carbon dioxide, methane and nitrous oxide from estuaries. Coastal systems play a disproportionately large role in the global emissions of greenhouse gases, but this is poorly quantified. The project plans to use a combination of continuous concentration and stable isotope measurements, process measurements and advanced numerical modelling ....Unravelling the drivers of greenhouse gas emissions in estuaries. The aim of this project is to understand and quantify the factors controlling the emission of carbon dioxide, methane and nitrous oxide from estuaries. Coastal systems play a disproportionately large role in the global emissions of greenhouse gases, but this is poorly quantified. The project plans to use a combination of continuous concentration and stable isotope measurements, process measurements and advanced numerical modelling across a range of undisturbed to disturbed systems. It is intended that this project will provide information for conceptualising, calibrating and verifying models, including green-house gas production. Good models, and the data that support them, such as that provided by this study, are critical for the efficient allocation of management resources in Australian coastal systems, including by our partners. The findings from this project will have direct implications to the management, rehabilitation and protection of waterways (including biodiversity) in Australia.Read moreRead less
Unlocking the secrets of mangrove conservation success. This project aims to address the deterioration of mangrove ecosystems. Mangroves support fisheries, shoreline protection and carbon sequestration. The project aims to identify social-economic conditions that enable effective conservation in mangroves over multiple spatial scales. The project will use state of the art datasets and innovative modelling approaches to understand how factors such as population, governance and access to markets i ....Unlocking the secrets of mangrove conservation success. This project aims to address the deterioration of mangrove ecosystems. Mangroves support fisheries, shoreline protection and carbon sequestration. The project aims to identify social-economic conditions that enable effective conservation in mangroves over multiple spatial scales. The project will use state of the art datasets and innovative modelling approaches to understand how factors such as population, governance and access to markets influence changes in mangrove extent and restoration success. Expected outcomes include implementation of more effective environmental programs in Australia and overseas. This should provide significant benefits, including more cost-effective allocation of resources and increased delivery of ecosystem services.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150100461
Funder
Australian Research Council
Funding Amount
$360,000.00
Summary
Early Detection of Seagrass Habitat Loss Caused by Eutrophication. Eutrophication (nutrient over-enrichment) caused by a host of anthropogenic activities is recognised as the most widespread cause of seagrass loss. In order to effectively control seagrass loss, there is an urgent need to determine the link between eutrophication and seagrass loss. This project aims to undertake an innovative 'omics approach (transcriptomics and metabolomics) to develop an early-warning system for seagrass loss. ....Early Detection of Seagrass Habitat Loss Caused by Eutrophication. Eutrophication (nutrient over-enrichment) caused by a host of anthropogenic activities is recognised as the most widespread cause of seagrass loss. In order to effectively control seagrass loss, there is an urgent need to determine the link between eutrophication and seagrass loss. This project aims to undertake an innovative 'omics approach (transcriptomics and metabolomics) to develop an early-warning system for seagrass loss. The acclimation and plasticity of seagrass to sub-lethal stress induced by eutrophication will be investigated at the molecular and biochemical levels. This will allow mitigation responses such as altered catchment management processes to prevent damage before meadows are lost.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE130101084
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
From sink to source: does microbial priming of degraded seagrasses contribute to global warming? Australian seagrasses are among the planet's most effective natural systems for removing greenhouse gases; but, if degraded, they could leak stored carbon and accelerate global warming. This project will test the emerging paradigm that microbes control carbon leakage, thereby providing information to ensure that seagrass carbon remains locked away.
Predicting interactive effects of multiple stressors on marine ecosystems. This project aims to create an innovative model to predict how multiple stressors interact to affect marine ecosystems across large spatial scales. The interactive effects of multiple stressors are poorly quantified in the marine environment, and natural resource managers are not able to confidently incorporate these complex interactions into prioritising management efforts in space and time. The project intends to devel ....Predicting interactive effects of multiple stressors on marine ecosystems. This project aims to create an innovative model to predict how multiple stressors interact to affect marine ecosystems across large spatial scales. The interactive effects of multiple stressors are poorly quantified in the marine environment, and natural resource managers are not able to confidently incorporate these complex interactions into prioritising management efforts in space and time. The project intends to develop models that will predict, a-priori, the type of interactions that may occur. This should enable ecosystem managers to better prioritise actions to more effectively conserve valuable and threatened marine ecosystems.Read moreRead less
Environmentally-friendly strategies for shoreline protection in lakes. Most current approaches to shoreline protection involve the use of ecologically damaging hard structures. Nature-based alternatives are increasingly adopted, but often without scientific evidence that they are environmentally-friendly. With rising sea-levels, the need for coastal protection will increase, so it is essential that we develop ecologically sustainable approaches to shoreline protection. The aim of this study is ....Environmentally-friendly strategies for shoreline protection in lakes. Most current approaches to shoreline protection involve the use of ecologically damaging hard structures. Nature-based alternatives are increasingly adopted, but often without scientific evidence that they are environmentally-friendly. With rising sea-levels, the need for coastal protection will increase, so it is essential that we develop ecologically sustainable approaches to shoreline protection. The aim of this study is to assess changes to biodiversity and ecosystem functions associated with different protection strategies. The research outcomes will be an understanding of the broad ecological impacts from these approaches and will provide the basis for ecologically sustainable shoreline protection in coastal lakes and lagoons.Read moreRead less