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Assessment of the potential consequences of large-scale eradication of rice grass from the Tamar Estuary, Tasmania. Introduced Rice grass has trapped large volumes of intertidal sediment, yet reduced amenity values of the Tamar Estuary, transforming beaches into muddy rice grass meadows, threatening aquaculture industries, and silting up coastal developments. This project will investigate the consequences of rice grass eradication, by determination of sediment volume trapped, contaminants contai ....Assessment of the potential consequences of large-scale eradication of rice grass from the Tamar Estuary, Tasmania. Introduced Rice grass has trapped large volumes of intertidal sediment, yet reduced amenity values of the Tamar Estuary, transforming beaches into muddy rice grass meadows, threatening aquaculture industries, and silting up coastal developments. This project will investigate the consequences of rice grass eradication, by determination of sediment volume trapped, contaminants contained, and monitoring of processes active after removal. The outcomes of this research will enable informed decisions on management of the Tamar rice grass infestation, and provide an understanding the impacts of large scale eradication to management authorities of similar infestations in Victoria, New Zealand, Europe, China and the USA.Read moreRead less
Advanced micro analysis systems for environmental monitoring. Understanding of the behaviour of the nutrients controlling nuisance algae in water bodies is currently limited by the cost and logistics of collecting and analysing the large numbers of samples required.
This proposal describes the development and evaluation of portable multiparameter micro analysis systems that will be capable of high frequency measurements from a sampling vessel. This will enable environmental agencies to perfo ....Advanced micro analysis systems for environmental monitoring. Understanding of the behaviour of the nutrients controlling nuisance algae in water bodies is currently limited by the cost and logistics of collecting and analysing the large numbers of samples required.
This proposal describes the development and evaluation of portable multiparameter micro analysis systems that will be capable of high frequency measurements from a sampling vessel. This will enable environmental agencies to perform rapid on-site mapping of nutrients and other water quality parameters in large water bodies, intensive scale mapping of effluent mixing and dispersal zones, quick assessment of the impact of dredging and aquaculture, and compliance monitoring in effluent streams.
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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
An autonomous microfluidic analyser for the determination of total phosphorus and nitrogen in aquatic systems. Development of automated monitoring systems capable of extended and remote operation will enable assessment of the effectiveness of water treatment and the impact of nutrient releases on the aquatic environment. Both are important in preserving the quality of existing water resources, and assessing the quality of recycled water, in line with the National Research Priority Environmentall ....An autonomous microfluidic analyser for the determination of total phosphorus and nitrogen in aquatic systems. Development of automated monitoring systems capable of extended and remote operation will enable assessment of the effectiveness of water treatment and the impact of nutrient releases on the aquatic environment. Both are important in preserving the quality of existing water resources, and assessing the quality of recycled water, in line with the National Research Priority Environmentally sustainable Australia, and the Priority Goal, Water - a critical resource. Commercialization of the microfluidic flow analysis system for total N and P will enhance the international competitiveness of Ecotech Pty Ltd and Australia as an exporter of scientific instruments.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
Unraveling the nitrogen cycle in a periodically anoxic estuary. Climate change is likely to lead to reduced river inflows to estuaries which can lead to oxygen depletion and major changes in nutrient cycling. This project will help inform the public and policy makers about the role of environmental flows in maintaining estuarine function, and thus guide future decisions on environmental flow requirements in the Yarra River Estuary. The benefits of this understanding will also flow on to improv ....Unraveling the nitrogen cycle in a periodically anoxic estuary. Climate change is likely to lead to reduced river inflows to estuaries which can lead to oxygen depletion and major changes in nutrient cycling. This project will help inform the public and policy makers about the role of environmental flows in maintaining estuarine function, and thus guide future decisions on environmental flow requirements in the Yarra River Estuary. The benefits of this understanding will also flow on to improved understanding and management of nitrogen loads to Port Phillip Bay. This project will form a close collaborative partnership between Monash University, Melbourne Water and the EPA. This collaboration will ensure the integration of cutting edge science with innovative management regimes 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