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Hyper-accumulations of monosulfidic sediments: Exploring a biogeochemical extreme to resolve fundamental sulfur biomineralisation pathways. The hyper-accumulation of monosulfidic sediments has a directsocial, economic and environmental impact on communities in many parts of Australia, including highly valued wetland systems such as the Ramsar wetlands of the lower Murray Darling Basin and internationally recognised Peel-Harvey Estuary of WA. Maintenance dredging of these materials alone costs th ....Hyper-accumulations of monosulfidic sediments: Exploring a biogeochemical extreme to resolve fundamental sulfur biomineralisation pathways. The hyper-accumulation of monosulfidic sediments has a directsocial, economic and environmental impact on communities in many parts of Australia, including highly valued wetland systems such as the Ramsar wetlands of the lower Murray Darling Basin and internationally recognised Peel-Harvey Estuary of WA. Maintenance dredging of these materials alone costs the nation millions of dollars annually. The hyper monosulfidic sediments are also linked to severe environmental impacts. This project will inform how these materials develop and accumulate. This new knowledge will be of immediate relevance for the management of eutrophic estuaries.Read moreRead less
Mechanisms of Iron Acquisition by the Cyanobacterium Trichodesmium in Coastal Waters. The toxic cyanobacterium Trichodesmium is the most conspicuous phytoplankter in Great Barrier Reef waters which, as a nitrogen fixer, produces and biologically packages "new" nitrogen into forms potentially available to other marine organisms and, as such, is likely to be a key driver of food web dynamics on the GBR. In this study, we will clarify the mechanism by which the critical nutrient iron is acquired by ....Mechanisms of Iron Acquisition by the Cyanobacterium Trichodesmium in Coastal Waters. The toxic cyanobacterium Trichodesmium is the most conspicuous phytoplankter in Great Barrier Reef waters which, as a nitrogen fixer, produces and biologically packages "new" nitrogen into forms potentially available to other marine organisms and, as such, is likely to be a key driver of food web dynamics on the GBR. In this study, we will clarify the mechanism by which the critical nutrient iron is acquired by this organism and, in so doing, assess the role that terrestrial activities play in iron supply.Read moreRead less
Unraveling Pathways of Nitrogen Cycling in the Sediments of Shallow Coastal Systems using Biomarkers, Stable Isotope Tracer Experiments and Modeling. Many 100's of millions of dollars are likely to be spent over the next ten years on the management of nitrogen enrichment, and protection of biodiversity, in Australia's coastal waters. This project will significantly advance our understanding of how organisms from bacteria to macrofauna affect the functioning of our coastal systems. Understanding ....Unraveling Pathways of Nitrogen Cycling in the Sediments of Shallow Coastal Systems using Biomarkers, Stable Isotope Tracer Experiments and Modeling. Many 100's of millions of dollars are likely to be spent over the next ten years on the management of nitrogen enrichment, and protection of biodiversity, in Australia's coastal waters. This project will significantly advance our understanding of how organisms from bacteria to macrofauna affect the functioning of our coastal systems. Understanding the role that organisms at all levels play in the functioning of coastal ecosystems is the first step towards protecting this biodiversity. As such the findings from this research will have direct implications to the management, rehabilitation and protection of waterways (including biodiversity) in Australia. Read moreRead less
Unraveling the pathways of nitrogen cycling in permeable sandy sediments in tropical coastal systems. Many hundreds of millions of dollars are likely to be spent over the next ten years on the management of nitrogen enrichment, and protection of biodiversity, in Australia's coastal waters. This project will significantly advance our understanding of how organisms from bacteria to macrofauna effect the functioning of our coastal systems. Understanding the role organisms at all levels play in the ....Unraveling the pathways of nitrogen cycling in permeable sandy sediments in tropical coastal systems. Many hundreds of millions of dollars are likely to be spent over the next ten years on the management of nitrogen enrichment, and protection of biodiversity, in Australia's coastal waters. This project will significantly advance our understanding of how organisms from bacteria to macrofauna effect the functioning of our coastal systems. Understanding the role organisms at all levels play in the functioning of coastal ecosystems is the first step toward protecting this biodiversity. As such the findings from this research will have direct implications for the management, rehabilitation and protection of waterways (including biodiversity) in Australia.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989952
Funder
Australian Research Council
Funding Amount
$220,000.00
Summary
A Continuous Flow-Wet Chemical Oxidation- Isotope Ratio Mass Spectrometer for Environmental Research. The proposed Continuous Flow-Wet Chemical Oxidation- Isotope Ratio Mass Spectrometer (CF-WCO-IRMS) facility will be the first in Australia, and as such will allow ground-breaking research to be undertaken resulting in advances in a variety of fields. As such, this system will significantly enhance many core research programs at Southern Cross University and enhance our ability to delivery high ....A Continuous Flow-Wet Chemical Oxidation- Isotope Ratio Mass Spectrometer for Environmental Research. The proposed Continuous Flow-Wet Chemical Oxidation- Isotope Ratio Mass Spectrometer (CF-WCO-IRMS) facility will be the first in Australia, and as such will allow ground-breaking research to be undertaken resulting in advances in a variety of fields. As such, this system will significantly enhance many core research programs at Southern Cross University and enhance our ability to delivery high quality research in the National Research Priority Area of An Environmentally Sustainable Australia with priority goals water- a critical resource, responding to climate change and variability, overcoming soil loss, salinity and acidity and sustainable use of Australia's biodiversity.Read moreRead less
Unravelling Pathways of Nitrogen Cycling in the Muddy Sediments of Shallow Coastal Systems using Biomarkers, Stable Isotope Tracer Experiments and Modelling. Many 100's of millions of dollars are likely to be spent over the next ten years on the management of nitrogen enrichment, and protection of biodiversity, in Australia's coastal waters. This project will significantly advance our understanding of how organisms from bacteria to macrofauna affect the functioning of our coastal systems. Unders ....Unravelling Pathways of Nitrogen Cycling in the Muddy Sediments of Shallow Coastal Systems using Biomarkers, Stable Isotope Tracer Experiments and Modelling. Many 100's of millions of dollars are likely to be spent over the next ten years on the management of nitrogen enrichment, and protection of biodiversity, in Australia's coastal waters. This project will significantly advance our understanding of how organisms from bacteria to macrofauna affect the functioning of our coastal systems. Understanding the role organisms at all levels play in the functioning of coastal ecosystems is the first step toward protecting this biodiversity. As such the findings from this research will have direct implications to the management, rehabilitation and protection of waterways (including biodiversity) in Australia. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0668495
Funder
Australian Research Council
Funding Amount
$274,000.00
Summary
A Gas Chromatograph-Combustion/Elemental Analyser-Isotope Ratio Mass Spectrometer (GC-c/EA-IRMS) system for Environmental Research. The proposed Gas Chromatograph-Combustion/Elemental Analyser-Isotope Ratio Mass Spectrometer (GC-c/EA-IRMS) system will allow ground-breaking research to be undertaken resulting in advances in a variety of environmental fields. As such, this system will significantly enhance many core research programs at Southern Cross University and enhance our ability to delivery ....A Gas Chromatograph-Combustion/Elemental Analyser-Isotope Ratio Mass Spectrometer (GC-c/EA-IRMS) system for Environmental Research. The proposed Gas Chromatograph-Combustion/Elemental Analyser-Isotope Ratio Mass Spectrometer (GC-c/EA-IRMS) system will allow ground-breaking research to be undertaken resulting in advances in a variety of environmental fields. As such, this system will significantly enhance many core research programs at Southern Cross University and enhance our ability to delivery high quality research in the National Research Priority Area of An Environmentally Sustainable Australia with priority goals water- a critical resource, overcoming soil loss, salinity and acidity and sustainable use of Australia's biodiversity. Read moreRead less