Critical flux paths influencing ecological processes in an urban estuary. This study will focus on the roles of benthic algae, denitrification and consumers on nutrient fluxes and planktonic production in the Swan River estuary, Western Australia. A 5-year research program of measurements and numerical modelling has identified these processes as poorly quantified, critical to the estuary trophic status, and essential data in order to accurately predict potential impacts of remediation strategie ....Critical flux paths influencing ecological processes in an urban estuary. This study will focus on the roles of benthic algae, denitrification and consumers on nutrient fluxes and planktonic production in the Swan River estuary, Western Australia. A 5-year research program of measurements and numerical modelling has identified these processes as poorly quantified, critical to the estuary trophic status, and essential data in order to accurately predict potential impacts of remediation strategies. We will validate the impacts of denitrification through in situ measurements, review data on higher order consumers, and use this information in a numerical model to understand the interactions of biogeochemical fluxes, plant, animal and microbial communities, and transport processes in the estuary.Read moreRead less
Big squids in Australian waters, insights into their biology, movement and activity, old questions - new technology. This project will assess important biological parameters of shelf and slope ommastrephid squids. Lab based studies will explore age, growth, maturity rates and diet for the deepwater squid Todarodes filippovae. Cutting -edge telemetry technology (manual tracking, listening curtains and satellite pop-up tags) will assess movement, activity, metabolism and vertical migration of bo ....Big squids in Australian waters, insights into their biology, movement and activity, old questions - new technology. This project will assess important biological parameters of shelf and slope ommastrephid squids. Lab based studies will explore age, growth, maturity rates and diet for the deepwater squid Todarodes filippovae. Cutting -edge telemetry technology (manual tracking, listening curtains and satellite pop-up tags) will assess movement, activity, metabolism and vertical migration of both T. filippovae in deep water and arrow squid (Nototodarus gouldi) on the shelf. A comprehensive understanding will be gained of the biology and lifestyle of these two key squid species that will be utilised by implementers of the South-east Regional Marine Plan, ecosystem modelers and resource managers.Read moreRead less
Do cleaner-fish control infections of parasitic protozoa transmitted by gnathiid isopods and leeches? We will study a popular example of mutualism, cleaning behaviour, from a different point of view: that cleaner-fish control the parasitic protozoa of the blood of client-fish by eating their vectors. This will provide information on the biological control of vector-borne parasites and develop mathematical models that will help us understand the epidemiology of vector-borne parasites in the sea. ....Do cleaner-fish control infections of parasitic protozoa transmitted by gnathiid isopods and leeches? We will study a popular example of mutualism, cleaning behaviour, from a different point of view: that cleaner-fish control the parasitic protozoa of the blood of client-fish by eating their vectors. This will provide information on the biological control of vector-borne parasites and develop mathematical models that will help us understand the epidemiology of vector-borne parasites in the sea. Our study will provide baseline data of a parasitic disease in a wild population, information useful for managing and monitoring the health of coral reefs. With the increased aquaculture of tropical fish species in Australia, this study will benefit the fish-farming industry by providing information on the biological control of fish parasites.Read moreRead less
More than mud: how will disruption of soft-sediments threaten coastal biodiversity? Habitat destruction and increased nutrient input are combining with climate change to threaten the biodiversity and fisheries productivity of soft sediment habitats that dominate Australia's sixteen million square kilometre exclusive economic zone. This project will develop the tools necessary for the sustainable management of our coastal biodiversity under multiple scenarios of change. Because many of the result ....More than mud: how will disruption of soft-sediments threaten coastal biodiversity? Habitat destruction and increased nutrient input are combining with climate change to threaten the biodiversity and fisheries productivity of soft sediment habitats that dominate Australia's sixteen million square kilometre exclusive economic zone. This project will develop the tools necessary for the sustainable management of our coastal biodiversity under multiple scenarios of change. Because many of the results will be broadly applicable to coastal systems worldwide, this project will generate high-impact publications that will increase the research profile of Australia. It will train postgraduate students in strategies to help ensure the sustainable use of our biodiversity and will generate collaborations with leading international scientists.Read moreRead less
Development of a theoretical framework for predicting responses of coral reef ecosystems to nutrient enrichment and herbivory. Australia relies greatly upon its rich natural environmental resources for goods and services and for economic growth (tourism, fisheries, and recreational industries). Our work on the Great Barrier Reef will provide a fresh perspective on the influence of nutrient pollution on corals and seaweeds. We will use new models to understand the sensitivity of reef organisms t ....Development of a theoretical framework for predicting responses of coral reef ecosystems to nutrient enrichment and herbivory. Australia relies greatly upon its rich natural environmental resources for goods and services and for economic growth (tourism, fisheries, and recreational industries). Our work on the Great Barrier Reef will provide a fresh perspective on the influence of nutrient pollution on corals and seaweeds. We will use new models to understand the sensitivity of reef organisms to nutrient enrichment. Our results will substantially enhance our ability to manage coral reef resources with climate change and increasing nutrient influx from urban or agricultural activities, underpinning a key National Research Priority. Read moreRead less
Testing the adaptive capacity of reef corals to rising sea surface temperatures. Australia's reefs are highly profitable resources. Tourism on the Great Barrier Reef contributes over $6 billion annually to the nation's economy and employs over 65,000 people. This proposal will produce world class research to quantify the extent to which corals can respond to climate change; a question central to managing these important resources. The research will also consolidate Australia's position as the le ....Testing the adaptive capacity of reef corals to rising sea surface temperatures. Australia's reefs are highly profitable resources. Tourism on the Great Barrier Reef contributes over $6 billion annually to the nation's economy and employs over 65,000 people. This proposal will produce world class research to quantify the extent to which corals can respond to climate change; a question central to managing these important resources. The research will also consolidate Australia's position as the leading nation in coral reef studies. Priority Goals addressed include Responding to Climate Change and Sustainable use of Australia Biodiversity.Read moreRead less
Fitness in free-living populations in a changing world. We understand very little about the evolutionary and ecological response of populations to periods of rapid environmental change or volatility. New methods raise the possibility dissecting the various causes of change, and their demographic consequences. However, these methods depend on long-term studies of the genealogy, survival and reproductive success of individuals. Data on the iconic superb fairy-wren will be used to establish this ....Fitness in free-living populations in a changing world. We understand very little about the evolutionary and ecological response of populations to periods of rapid environmental change or volatility. New methods raise the possibility dissecting the various causes of change, and their demographic consequences. However, these methods depend on long-term studies of the genealogy, survival and reproductive success of individuals. Data on the iconic superb fairy-wren will be used to establish this species as a model for the study of climate change, and the extent to which living in social groups helps or hinders evolutionary response to such change.Read moreRead less
Solar radiation, coral bleaching and climate change. Corals reefs like the Great Barrier Reef (GBR) underpin approximately $2 billion annually in sustainable tourism and fisheries. Warming of Australia's tropical seas, however, has increased mass coral bleaching/mortality and is placing reefs like the GBR at increasing risk. Solar radiation (PAR, UVR) plays an important influence on the biological outcome of thermal stress. Understanding the role of solar radiation is critical if we are to unde ....Solar radiation, coral bleaching and climate change. Corals reefs like the Great Barrier Reef (GBR) underpin approximately $2 billion annually in sustainable tourism and fisheries. Warming of Australia's tropical seas, however, has increased mass coral bleaching/mortality and is placing reefs like the GBR at increasing risk. Solar radiation (PAR, UVR) plays an important influence on the biological outcome of thermal stress. Understanding the role of solar radiation is critical if we are to understand the changes that will occur on coral reefs as temperatures increase. This multidisciplinary international team will define and model the role of solar radiation on thermal stress at local, regional and global scales. Read moreRead less
MICROENDOLITHS, CORAL BLEACHING AND ENVIRONMENTAL CHANGE. Planning for sustainable use of ecosystems like the Great Barrier Reef (GBR) can only be done with an accurate understanding of how ecosystems are likely to change, and at what rate, under persistent climate change. This project, aligned with National Research Priority 'An Environmentally Sustainable Australia', will be performed over 3 oceans and focusing on the GBR, will contribute to the national benefit by rapidly improving our unders ....MICROENDOLITHS, CORAL BLEACHING AND ENVIRONMENTAL CHANGE. Planning for sustainable use of ecosystems like the Great Barrier Reef (GBR) can only be done with an accurate understanding of how ecosystems are likely to change, and at what rate, under persistent climate change. This project, aligned with National Research Priority 'An Environmentally Sustainable Australia', will be performed over 3 oceans and focusing on the GBR, will contribute to the national benefit by rapidly improving our understanding on one such major factor-the endolithic community in coral skeletons. It will allow better predictions of short and long-term consequences to reefs, and will also continue to show Australia's leadership in understanding the rate and direction of changes within coral reef ecosystems.Read moreRead less
Fish ear stones for monitoring changes in environmental conditions. The ear-stones (=otoliths) of territorial reef fish could provide environmental records over a great latitudinal range. Important environmental variation includes upwelling, riverine input, the southern oscillation and climate change. Laser mass-spectrometry will be used to resolve spatial and temporal variation in environmental conditions experienced in tropical and temperate waters over periods of up to 50 years. Experiments ....Fish ear stones for monitoring changes in environmental conditions. The ear-stones (=otoliths) of territorial reef fish could provide environmental records over a great latitudinal range. Important environmental variation includes upwelling, riverine input, the southern oscillation and climate change. Laser mass-spectrometry will be used to resolve spatial and temporal variation in environmental conditions experienced in tropical and temperate waters over periods of up to 50 years. Experiments will be done to determine the duration of events (ie changes in water chemistry) that are reliably recorded. Environmental variation is known to influence fish populations, including commercial species, but data on frequency and spatial extent of these impacts are few.Read moreRead less