Ecology, Physiology and Phylogeography: an integrated approach to the study of the invasive marine green macroalga Caulerpa taxifolia in Australia. The green marine macroalga Caulerpa taxifolia is one of the world's worst invasive species. In Australia 'exotic strains' of this alga are a listed pest species. Invasions in NSW and SA have caused environmental harm and managing them has cost $10 million since 2000. We propose to integrate ecology, physiology and genetic analyses to provide data to ....Ecology, Physiology and Phylogeography: an integrated approach to the study of the invasive marine green macroalga Caulerpa taxifolia in Australia. The green marine macroalga Caulerpa taxifolia is one of the world's worst invasive species. In Australia 'exotic strains' of this alga are a listed pest species. Invasions in NSW and SA have caused environmental harm and managing them has cost $10 million since 2000. We propose to integrate ecology, physiology and genetic analyses to provide data to better respond to this pest, potentially savings millions of dollars per year. We will produce the first empirical evidence of the effects of climate change and ocean acidification on this marine pest, in the context of increasing coastal human populations.Read moreRead less
Phylogeography and host specificity of stemborer parasitoids: essential components for the pre-emptive biocontrol of sugarcane pests in Australia. Stemboring insects cause huge economic losses to the sugar industry world-wide but fortunately these pests are largely absent from Australia, in part because quarantine measures have prevented their introduction. However, given their proximity, incursion of foreign stemborers from Asia pose a serious threat to Australian sugarcane. To prepare effectiv ....Phylogeography and host specificity of stemborer parasitoids: essential components for the pre-emptive biocontrol of sugarcane pests in Australia. Stemboring insects cause huge economic losses to the sugar industry world-wide but fortunately these pests are largely absent from Australia, in part because quarantine measures have prevented their introduction. However, given their proximity, incursion of foreign stemborers from Asia pose a serious threat to Australian sugarcane. To prepare effective pest management plans that can be adopted promptly in a worst-case scenario, this study will 1) develop molecular diagnostic tools to select wasp biocontrol agents that are suitable for the control of specific foreign stemborer pests, and 2) evaluate whether any Australian native wasps have the ability to kill foreign stemborers. Read moreRead less
Developing new methods to retrieve and analyse preserved genetic information. This project will position Australia at the leading edge of research into preserved DNA, and will use innovative molecular biology approaches to develop a range of new forensic, archaeological and medical applications. It will build Australian knowledge and scientific capacity by developing core expertise and training personnel in areas important for biosecurity, customs and quarantine, forensics/counter-terrorism, and ....Developing new methods to retrieve and analyse preserved genetic information. This project will position Australia at the leading edge of research into preserved DNA, and will use innovative molecular biology approaches to develop a range of new forensic, archaeological and medical applications. It will build Australian knowledge and scientific capacity by developing core expertise and training personnel in areas important for biosecurity, customs and quarantine, forensics/counter-terrorism, and studies of climate change. It will also create and foster research innovation in molecular biology with spin-offs for evolution, archaeology, medical and conservation biology research, and will also encourage involvement with the rapidly expanding field of genomics and bioinformatics.Read moreRead less
Genetic variation in the Cotesia flavipes complex of parasitic wasps: towards the effective biological control of stem-borer pests. This project will determine the genetic variation among world populations of the parasitic wasp Cotesia flavipes, as a prelude to the preemptive biological control of stemborer pests of sugarcane in Australia. These pests currently do not occur in Australia, but are found in crops across New Guinea and Indonesia, so that their incursion into Australia is highly lik ....Genetic variation in the Cotesia flavipes complex of parasitic wasps: towards the effective biological control of stem-borer pests. This project will determine the genetic variation among world populations of the parasitic wasp Cotesia flavipes, as a prelude to the preemptive biological control of stemborer pests of sugarcane in Australia. These pests currently do not occur in Australia, but are found in crops across New Guinea and Indonesia, so that their incursion into Australia is highly likely in the future. The results of this project will clarify the taxonomic status of C. flavipes-like species in Australia and provide the means, using molecular markers, to select host strains of this wasp suitable for the control of specific stemborer speciesRead moreRead less
Threats to the water quality and ecosystem of Coffin Bay, South Australia. Coffin Bay (South Australia) is experiencing worsening environmental conditions despite its major economic and ecological importance. Research is needed to understand the cause of this decline, particularly in light of a recent bacterial outbreak that impacted the aquaculture industry. This multidisciplinary project aims to deliver world-leading scientific advice based on novel field techniques and innovative models of th ....Threats to the water quality and ecosystem of Coffin Bay, South Australia. Coffin Bay (South Australia) is experiencing worsening environmental conditions despite its major economic and ecological importance. Research is needed to understand the cause of this decline, particularly in light of a recent bacterial outbreak that impacted the aquaculture industry. This multidisciplinary project aims to deliver world-leading scientific advice based on novel field techniques and innovative models of this complex inverse estuary system and its surrounding catchment. The new understanding of the sources, fluxes and fate of nutrients within the bay and the surrounding catchment, arising from this project, is expected to benefit management decision-making and establish a new standard in estuarine water quality investigation.Read moreRead less
Polymer technologies for oil spill remediation and slow-release fertilisers. This project aims to evaluate a patented sulfur polymer in commercial oil spill remediation and slow-release fertilisers. Key objectives are to determine how the polymer degrades, assess the effectiveness of the polymer in oil spill sorption in different contexts, and investigate the polymer as a matrix for slow-release fertilisers. The project expects to generate new approaches to sustainable remediation and crop produ ....Polymer technologies for oil spill remediation and slow-release fertilisers. This project aims to evaluate a patented sulfur polymer in commercial oil spill remediation and slow-release fertilisers. Key objectives are to determine how the polymer degrades, assess the effectiveness of the polymer in oil spill sorption in different contexts, and investigate the polymer as a matrix for slow-release fertilisers. The project expects to generate new approaches to sustainable remediation and crop production. Expected outcomes include new knowledge about the biodegradation of the polymer, new methods for deploying the polymer in oil spill cleanup, and new fertilisers that prevent nutrient waste and runoff. Significant benefits are expected for the environment, as well as economic benefits to the manufacturer and end-users.Read moreRead less
The recovery of Cu from chalcopyrite-pyrite containing concentrates, ores and tailings. Chalcopyrite, a major source of Cu, is often associated in ores with the valueless mineral pyrite. The development of more efficient methods for the retrieval of the Cu is of considerable economic importance to Australian minerals processing companies. We aim to develop methodologies allowing the more efficient :
- separation of chalcopyrite and pyrite;
- leaching of Cu from ores and tailing in a heap leach ....The recovery of Cu from chalcopyrite-pyrite containing concentrates, ores and tailings. Chalcopyrite, a major source of Cu, is often associated in ores with the valueless mineral pyrite. The development of more efficient methods for the retrieval of the Cu is of considerable economic importance to Australian minerals processing companies. We aim to develop methodologies allowing the more efficient :
- separation of chalcopyrite and pyrite;
- leaching of Cu from ores and tailing in a heap leach environment and
- leaching of Cu in a concentrated chalcopyrite-pyrite reactor environment.
These aims will be achieved via an integrated surface-solution speciation approach allowing the manipulation of surface properties.
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Polymers at Mineral Interfaces. Polymers are used widely in the mineral processing industry to alter mineral surfaces, often selectively. In spite of this, there remains a gap in our understanding of how polymers interact with mineral surfaces and how their surface structure affects the mineral surface properties. The aim of this project is to fill this gap by performing fundamental research on adsorbed polymer structure and properties, coupled with applied research on real mineral ores from a ....Polymers at Mineral Interfaces. Polymers are used widely in the mineral processing industry to alter mineral surfaces, often selectively. In spite of this, there remains a gap in our understanding of how polymers interact with mineral surfaces and how their surface structure affects the mineral surface properties. The aim of this project is to fill this gap by performing fundamental research on adsorbed polymer structure and properties, coupled with applied research on real mineral ores from a number of mineral companies. The combination of fundamental and applied research makes this project unique in the study of polymers at mineral interfaces, and will enable us to solve real processing problems through a rational choice of polymers for a given application.Read moreRead less
Polymers in the Depression, Aggregation and Dispersion of Particles in the Mineral Industry. The aim of this project is to use a generic approach to the selection of the best-suited polymer for specific applications such as in the depression, aggregation and dispersion of particles in the mineral industry. A "tool box" of particular tests will be developed based on key chemical structure-solid surface activity relationships between the polymer and the host solid surface in each application consi ....Polymers in the Depression, Aggregation and Dispersion of Particles in the Mineral Industry. The aim of this project is to use a generic approach to the selection of the best-suited polymer for specific applications such as in the depression, aggregation and dispersion of particles in the mineral industry. A "tool box" of particular tests will be developed based on key chemical structure-solid surface activity relationships between the polymer and the host solid surface in each application considered. Potential process improvements leading to improved flotation grades, increased fine particle recovery, increased slurry throughput in pipelines and decrease in reagent dosage will result.Read moreRead less
Reducing the deleterious impacts of clay particle interactions with valuable minerals in copper and gold processing. This project seeks to understand the rheological behaviour of clay minerals and the effect of the viscosity caused by clay minerals on gas dispersion, the transport of network structures and the locking of the structures in the froth in mineral flotation. Novel methods will be developed to improve flotation separation by reducing the viscosity.