Discovery Early Career Researcher Award - Grant ID: DE130100572
Funder
Australian Research Council
Funding Amount
$369,745.00
Summary
Understanding the ecological and economic implications of reef fish larval dispersal. Until we understand larval dispersal, the movement of reef fish during their juvenile stage, we cannot sustainably manage coral reef ecosystems. This project will use sophisticated mathematical tools to understand how larval dispersal influences the ecology and management of the Great Barrier Reef and a fishery in Papua New Guinea.
Discovery Early Career Researcher Award - Grant ID: DE160101207
Funder
Australian Research Council
Funding Amount
$334,000.00
Summary
Predicting fisheries change from cumulative impacts to aquatic habitats. This project intends to quantify the role that aquatic habitats play in fisheries, and to help identify where to restore degraded aquatic habitats. Fisheries are a globally important resource but their status is declining in many regions, often because of the loss of aquatic habitats. However, the role of habitat in fishery declines is poorly quantified, and new models are needed that integrate existing datasets to attribut ....Predicting fisheries change from cumulative impacts to aquatic habitats. This project intends to quantify the role that aquatic habitats play in fisheries, and to help identify where to restore degraded aquatic habitats. Fisheries are a globally important resource but their status is declining in many regions, often because of the loss of aquatic habitats. However, the role of habitat in fishery declines is poorly quantified, and new models are needed that integrate existing datasets to attribute change in a fishery to change in its habitats. The project aims to develop a new statistical analysis to examine the role of habitat loss in the global status of fisheries and how multiple human impacts to habitats affect fisheries, to decide how we can best protect aquatic habitats.Read moreRead less
Environmental management of coral reef resilience. The primary aim of this project is to provide the scientific evidence needed to effectively manage and protect reef resilience within the GBR Marine Park. We will develop and apply scientific tools for understanding the large-scale effect of multiple physical environmental stresses on coral populations. Furthermore, we will determine how fish communities influence the potential for coral reefs to remain healthy in the face of global change. Cent ....Environmental management of coral reef resilience. The primary aim of this project is to provide the scientific evidence needed to effectively manage and protect reef resilience within the GBR Marine Park. We will develop and apply scientific tools for understanding the large-scale effect of multiple physical environmental stresses on coral populations. Furthermore, we will determine how fish communities influence the potential for coral reefs to remain healthy in the face of global change. Central to this work will be an evaluation of the potential of No-Take Zones, a contemporary management tool, to promote resilience and the ability of coral reefs to cope with environmental change.Read moreRead less
Impacts of changing detrital source biodiversity on estuarine ecosystems. Coastal development, invasive pests, and climate change are impacting abundances of estuarine aquatic plants. This in turn is affecting the composition and magnitude of detrital enrichment, threatening biodiversity, fisheries production and endangered birds. Our pioneering research will forecast the impacts of changing detrital-source biodiversity on soft-sediment communities and the food webs they support in Australia and ....Impacts of changing detrital source biodiversity on estuarine ecosystems. Coastal development, invasive pests, and climate change are impacting abundances of estuarine aquatic plants. This in turn is affecting the composition and magnitude of detrital enrichment, threatening biodiversity, fisheries production and endangered birds. Our pioneering research will forecast the impacts of changing detrital-source biodiversity on soft-sediment communities and the food webs they support in Australia and the USA. Ecological generalities obtained can be used to support policy development that ensures sustainable management of estuaries. This work will also facilitate training of early career researchers and focus research efforts of leading US researchers towards issues crucial for Australian estuarine management.Read moreRead less
Reconciling competing objectives for the design of marine reserve networks: biodiversity, food security, and local equity in benefits. This project uses a decision-theoretic framework to balance the often conflicting marine conservation objectives of preserving biodiversity and building food security for local communities in the socially and ecologically complex region of the Coral Triangle. A new reserve design will boost biodiversity conservation and better support livelihoods.
A novel approach to tracking estuarine food chains: combined use of fatty acid and stable isotope biomarkers. Fatty acid biomarkers provide promising novel tracers for studying estuarine food chains. Stable isotopes, commonly employed in food chain studies, lack specificity to allow easy determination of feeding relationships. Different primary producers are characterised by unique fatty acid sequences. This study will thoroughly evaluate the applicability of fatty acid biomarkers in tracking ....A novel approach to tracking estuarine food chains: combined use of fatty acid and stable isotope biomarkers. Fatty acid biomarkers provide promising novel tracers for studying estuarine food chains. Stable isotopes, commonly employed in food chain studies, lack specificity to allow easy determination of feeding relationships. Different primary producers are characterised by unique fatty acid sequences. This study will thoroughly evaluate the applicability of fatty acid biomarkers in tracking both natural and human-impacted estuarine food chains. By developing a new approach of combining the advantages of fatty acid bioamrkers and stable isotopes in studying estuarine trophodynamics, this study will provide essential information for the management of estuarine biotic resources.Read moreRead less
Incorporation of vulnerability and irreplaceability into marine protected area planning. The primary national benefit will be to better safeguard biological diversity by reducing extinction risk for marine species. This will be achieved through analysis of factors affecting extinction risk, and through the development of protocols to improve the siting of marine protected areas for conservation outcomes. A more effective National Representative System of Marine Protected Areas will be achieved t ....Incorporation of vulnerability and irreplaceability into marine protected area planning. The primary national benefit will be to better safeguard biological diversity by reducing extinction risk for marine species. This will be achieved through analysis of factors affecting extinction risk, and through the development of protocols to improve the siting of marine protected areas for conservation outcomes. A more effective National Representative System of Marine Protected Areas will be achieved through decreased extinction risk and lower opportunity costs. In addition, a quantitative baseline dataset will be obtained for evaluating long-term changes in threatened marine species populations, and the effectiveness of future management actions aimed to safeguard threatened species.Read moreRead less
Heterogeneity and ecosystem function: The role of microphytobenthos and macrofauna in inducing spatial variability in biogeochemical processes and fluxes. Human disturbances such as eutrophication (nutrient enrichment) increasingly threaten the sustainable use of Australia's coastal seas. Management of threats such as eutrophication are usually based on observations at large spatial scales, but ecological processes underpinning nutrient dynamics occur at much smaller scales. This multi-disciplin ....Heterogeneity and ecosystem function: The role of microphytobenthos and macrofauna in inducing spatial variability in biogeochemical processes and fluxes. Human disturbances such as eutrophication (nutrient enrichment) increasingly threaten the sustainable use of Australia's coastal seas. Management of threats such as eutrophication are usually based on observations at large spatial scales, but ecological processes underpinning nutrient dynamics occur at much smaller scales. This multi-disciplinary study will examine the relationship between processes mediated by small organisms (microscopic algae and burrowing animals), and large-scale nutrient dynamics pattern on sheltered coasts. Modern technologies will be used for monitoring the micro-scale processes, allowing models to be constructed to benefit both scientists and policy-makers alike.Read moreRead less
Linking phytoplankton to fisheries using zooplankton size spectra. This project aims to develop innovative numerical methods to understand the dynamics, carbon export, and trophic structure of zooplankton. The trophic links between phytoplankton, zooplankton and fisheries are unknown. The size- frequency distribution of zooplankton (size spectrum) is an innovative method for estimating their growth, predation and production as food for fish. Analysis of a global synthesis of zooplankton size dis ....Linking phytoplankton to fisheries using zooplankton size spectra. This project aims to develop innovative numerical methods to understand the dynamics, carbon export, and trophic structure of zooplankton. The trophic links between phytoplankton, zooplankton and fisheries are unknown. The size- frequency distribution of zooplankton (size spectrum) is an innovative method for estimating their growth, predation and production as food for fish. Analysis of a global synthesis of zooplankton size distributions from tropical to polar environments are expected to reveal these vital rates of pelagic ecosystems. The zooplankton rates will reveal, for the first time, the link between phytoplankton and fisheries, and will significantly improve ecosystem models and global assessments of environmental change.Read moreRead less
Building effects of marine pests into nutrient management strategies. The input of nutrients has long been a key management focus for coastal waters, and the organisms living in soft sediments play a very important role in the removal of nutrients from these waters, thereby reducing the risk of environmental degradation. In recent years, marine pests have emerged as a major threat, with the potential to alter the abundances of a wide range of native organisms. Nutrients and pests have largely ....Building effects of marine pests into nutrient management strategies. The input of nutrients has long been a key management focus for coastal waters, and the organisms living in soft sediments play a very important role in the removal of nutrients from these waters, thereby reducing the risk of environmental degradation. In recent years, marine pests have emerged as a major threat, with the potential to alter the abundances of a wide range of native organisms. Nutrients and pests have largely been treated as independent threats, but pests could interfere with denitrification processes. We will test whether this occurs, and provide key information for managers devising nutrient management strategies.Read moreRead less