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The link between environmental stress and disease onset in prawn aquaculture. The federal government has set a target for prawn aquaculture production to increase fourfold by 2010. A major barrier is disease: losses of 20% of production to viral diseases are not uncommon. To be internationally competitive, Australia needs to develop high health production systems. Most prawn stock carry chronic viral infections, but only exhibit disease symptoms following environmental stress. This project will ....The link between environmental stress and disease onset in prawn aquaculture. The federal government has set a target for prawn aquaculture production to increase fourfold by 2010. A major barrier is disease: losses of 20% of production to viral diseases are not uncommon. To be internationally competitive, Australia needs to develop high health production systems. Most prawn stock carry chronic viral infections, but only exhibit disease symptoms following environmental stress. This project will identify environmental stressors that activate viral disease in Penaeus monodon. Outcomes will be incorporated into on-farm managerial regimes to minimize risk of crop loss to disease. Development of biomarkers as indicators of stress related risks may be commercialized.Read moreRead less
Aquaculture of the tropical abalone: identifying and selecting for factors promoting high settlement, survival and growth. There is a growing demand worldwide for the 'cocktail'-sized tropical abalone Haliotis asinina. We have developed a full set of hatchery and grow-out procedures that Queensland Sea Scallops Pty Ltd will test on a commercial scale. At QSS, we will propagate and growout Haliotis asinina to determine the factors controlling settlement, survival, growth and health. We will do ....Aquaculture of the tropical abalone: identifying and selecting for factors promoting high settlement, survival and growth. There is a growing demand worldwide for the 'cocktail'-sized tropical abalone Haliotis asinina. We have developed a full set of hatchery and grow-out procedures that Queensland Sea Scallops Pty Ltd will test on a commercial scale. At QSS, we will propagate and growout Haliotis asinina to determine the factors controlling settlement, survival, growth and health. We will do this by combining breeding experiments with microarray gene profiling and other advanced gene expression studies. This knowledge will enhance the development of this new aquaculture industry in tropical Australia and our understanding of abalone aquaculture in general.Read moreRead less
Uncovering the genetic basis for saxitoxin production in Australian marine and freshwater systems: novel molecular tools for management. In Australia, toxic algal blooms have had a devastating impact on marine and freshwater resources. In collaboration with a biotechnology company, this project will use an innovative method to design a molecular genetic tool to monitor, research and potentially mitigate the effects of saxitoxin production on water supplies and aquaculture industries. In working ....Uncovering the genetic basis for saxitoxin production in Australian marine and freshwater systems: novel molecular tools for management. In Australia, toxic algal blooms have had a devastating impact on marine and freshwater resources. In collaboration with a biotechnology company, this project will use an innovative method to design a molecular genetic tool to monitor, research and potentially mitigate the effects of saxitoxin production on water supplies and aquaculture industries. In working with monitoring authorities throughout Australia, we will produce a specific, sensitive and cost-effective technology that will ultimately be applicable worldwide. Read moreRead less
Omega-3 fats in vegetable oils: Improving their benefits. While authoritative health agencies in Western countries recommend increased intake of omega-3 fats, fish stocks world-wide are already under stress and could not sustain the general uptake of this advice. Nor could aquaculture expansion meet the demand for omega-3 fats with current practices of using wild fish or fish meal or fish oil for feed. This project will address the knowledge gap in how fish handle the omega-3 fatty acids from ve ....Omega-3 fats in vegetable oils: Improving their benefits. While authoritative health agencies in Western countries recommend increased intake of omega-3 fats, fish stocks world-wide are already under stress and could not sustain the general uptake of this advice. Nor could aquaculture expansion meet the demand for omega-3 fats with current practices of using wild fish or fish meal or fish oil for feed. This project will address the knowledge gap in how fish handle the omega-3 fatty acids from vegetable oils such as canola, flaxseed and echium. Australia is well placed in agriculture and aquaculture to capture the value of this research.Read moreRead less
Variation in larval gene expression in a marine invertebrate: implications for population divergence via differential settlement response. Evolutionary and ecological functional genomics is an emerging field that integrates gene profiling technologies with experimental and field approaches of ecology and evolution. I take this approach to address a key problem in marine invertebrate biology: how do larvae respond to their environment and how does variation in this response influence the distribu ....Variation in larval gene expression in a marine invertebrate: implications for population divergence via differential settlement response. Evolutionary and ecological functional genomics is an emerging field that integrates gene profiling technologies with experimental and field approaches of ecology and evolution. I take this approach to address a key problem in marine invertebrate biology: how do larvae respond to their environment and how does variation in this response influence the distribution and evolution of a species? I will use a marine gastropod (abalone) model, for which there exists substantial development and population genetic data, and established aquaculture methodologies. Outcomes of this study will enhance knowledge of the stock structure of this and other commercial fisheries, as well as aquaculture efficiency.Read moreRead less