Understanding algal bloom microbiome function to improve seafood safety. Current phytoplankton ecological theory is derived primarily from lab cultures, but in nature phytoplankton have unique microbiomes that support their growth and ongoing ocean primary production. This project aims to establish the structure and function of these natural microbiomes, and how they contribute to seafood poisoning caused by bacteria and algal biotoxins. Using advanced flow cytometry with single-cell microbial ....Understanding algal bloom microbiome function to improve seafood safety. Current phytoplankton ecological theory is derived primarily from lab cultures, but in nature phytoplankton have unique microbiomes that support their growth and ongoing ocean primary production. This project aims to establish the structure and function of these natural microbiomes, and how they contribute to seafood poisoning caused by bacteria and algal biotoxins. Using advanced flow cytometry with single-cell microbial profiling, we will sample nano-scale plankton microbiomes and synthetic microbiome phylogenomics to the link between microbiomes and seafood poisoning outbreaks. The outcomes will underpin enhanced predictive modelling of seafood risk to ensure the safety and export security of Australia's $2 billion seafood industry.Read moreRead less
Predictive ichthyotoxicity, diagnostics and risk assessment of harmful algal blooms impacting on the Tasmanian salmonid aquaculture industry. We aim to define through a combination of laboratory culture exposure and live cage bioassay experiments the minimum cell concentrations of harmful microalgae (Karenia, Heterosigma, Noctiluca, Chaetoceros) that can cause salmonid mortalities or are a factor in compromising fish health or reducing fish farm productivity. The diagnostic pathology and fish be ....Predictive ichthyotoxicity, diagnostics and risk assessment of harmful algal blooms impacting on the Tasmanian salmonid aquaculture industry. We aim to define through a combination of laboratory culture exposure and live cage bioassay experiments the minimum cell concentrations of harmful microalgae (Karenia, Heterosigma, Noctiluca, Chaetoceros) that can cause salmonid mortalities or are a factor in compromising fish health or reducing fish farm productivity. The diagnostic pathology and fish behaviour caused by different harmful algal taxa will be carefully documented to assist fish health inspectors in the routine diagnosis of algal toxicosis ot compromised fish health. Ultimately, this information will be integrated into a risk assessment strategy for the Tasmanian salmonid industry to manage fish stocks during times of harmful algal bloom events.Read moreRead less
Synergistic interactions between reactive oxygen species, free fatty acids and neurotoxins as the fish-killing mechanism of Australian gymnodinioid dinoflagellates. Provide the scientific basis for sound management and mitigation strategies to prevent algal bloom impacts on aquaculture, fisheries and the environment.
Effect of Global Change on the Primary Production of Antarctic coastal Ecosystems. As the climate warms, sea ice in Antarctic coastal areas will reduce. Most primary production currently occurs within the sea ice. We propose that a reduction in ice extent will lead to a reduction in ice production but greater benthic production; phytoplankton production will stay relatively constant. These changes will significantly effect the size of pelagic (ie fish) and benthic (starfish, sea urchins etc) st ....Effect of Global Change on the Primary Production of Antarctic coastal Ecosystems. As the climate warms, sea ice in Antarctic coastal areas will reduce. Most primary production currently occurs within the sea ice. We propose that a reduction in ice extent will lead to a reduction in ice production but greater benthic production; phytoplankton production will stay relatively constant. These changes will significantly effect the size of pelagic (ie fish) and benthic (starfish, sea urchins etc) stocks, which in turn will impact on the size of seal and penguin populations. Our project will allow predictions of these changes that have been induced by a reduction in sa ice extentRead moreRead less
Mechanisms of acclimation of coralline algae to ocean acidification. This project aims to investigate the biological and ecological mechanisms by which reef-building coralline algae may have survived past ocean acidification and warming events and may acclimate to future changes. Coralline algae play critical roles in coral reef ecology but are sensitive to human-induced ocean acidification. However, the abundant geological record coincident with past acidification events is inconsistent with th ....Mechanisms of acclimation of coralline algae to ocean acidification. This project aims to investigate the biological and ecological mechanisms by which reef-building coralline algae may have survived past ocean acidification and warming events and may acclimate to future changes. Coralline algae play critical roles in coral reef ecology but are sensitive to human-induced ocean acidification. However, the abundant geological record coincident with past acidification events is inconsistent with their sensitivity to high carbon dioxide. Acclimation and adaptation is therefore possible but in ways we do not yet understand. The project expects to provide insights to the ability of key marine organisms to acclimate to rapid environmental change and provide information critical for the conservation of valuable marine systems.Read moreRead less
Seafood safety: high throughput diagnostics for ciguatoxin risk assessment. This project aims to develop a novel, high throughput platform for rapidly assessing ciguatoxins. Species of the marine microalgae Gambierdiscus produce ciguatoxins, which accumulate in fish through marine food chains to cause the often debilitating human illness called ciguatera fish poisoning. Ciiguatera fish poisoning is a growing and substantial risk for the $2.2 billion Australian commercial fishing industry. This s ....Seafood safety: high throughput diagnostics for ciguatoxin risk assessment. This project aims to develop a novel, high throughput platform for rapidly assessing ciguatoxins. Species of the marine microalgae Gambierdiscus produce ciguatoxins, which accumulate in fish through marine food chains to cause the often debilitating human illness called ciguatera fish poisoning. Ciiguatera fish poisoning is a growing and substantial risk for the $2.2 billion Australian commercial fishing industry. This serious illness is increasingly impacting more southerly areas of Australia due to environmental changes. The outcomes of this project include new knowledge of the risk of ciguatoxins at Australian 'hot spot' sites, extensively field tested methods for detecting Gambierdiscus and ciguatoxins in situ and key data to inform policy to safeguard the seafood industry and consumers.
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Seaweed forests of the future: responses to ocean acidification and warming. The aim is to discover if rising levels of oceanic carbon dioxide will offset negative effects of ocean warming on seaweeds, using targeted physiological experiments together with novel molecular diagnostics. Seaweeds create habitats and food for shellfish and fish, and play a crucial role in long term ‘blue carbon’ storage. They are predicted to benefit from future carbon dioxide enrichment, but to test this forecast r ....Seaweed forests of the future: responses to ocean acidification and warming. The aim is to discover if rising levels of oceanic carbon dioxide will offset negative effects of ocean warming on seaweeds, using targeted physiological experiments together with novel molecular diagnostics. Seaweeds create habitats and food for shellfish and fish, and play a crucial role in long term ‘blue carbon’ storage. They are predicted to benefit from future carbon dioxide enrichment, but to test this forecast requires a detailed understanding of the mechanisms used by seaweeds to acquire dissolved inorganic carbon. The expected outcome is robust predictions of how the primary productivity of coastal waters will respond to future high carbon dioxide conditions, enabling human adaptation to environmental change.
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Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100015
Funder
Australian Research Council
Funding Amount
$200,000.00
Summary
Purchase of an ultra-performance liquid chromatograph - triple quadrupole mass spectrometer. The diverse research supported by the proposed instrument group addresses several national research priorities. It will lead to a better fundamental understanding of the hormonal control of plant growth, improved catalysts for organic synthesis including pharmaceuticals and improved food safety. In forestry it will help to increase forest productivity through mitigating losses from insect and mamm ....Purchase of an ultra-performance liquid chromatograph - triple quadrupole mass spectrometer. The diverse research supported by the proposed instrument group addresses several national research priorities. It will lead to a better fundamental understanding of the hormonal control of plant growth, improved catalysts for organic synthesis including pharmaceuticals and improved food safety. In forestry it will help to increase forest productivity through mitigating losses from insect and mammalian pests and enhancing wood quality. In pharmaceutics, improved treatments for asthma are expected. This facility will provide the infrastructure essential for many researchers to maintain internationally competitive profiles in their areas and continue to offer postgraduate training and postdoctoral opportunities.Read moreRead less