Movement, migration and social networks in wild shark populations. Sharks are vital components of marine ecosystems and contribute significantly to ecotourism and fisheries. Due to their slow rate of growth and reproduction, sharks are susceptible to over exploitation. A lack of knowledge regarding their behaviour and movement patterns is a key impediment to effective management. This project aims to examine social interactions and migration patterns of Port Jackson sharks using a unique combina ....Movement, migration and social networks in wild shark populations. Sharks are vital components of marine ecosystems and contribute significantly to ecotourism and fisheries. Due to their slow rate of growth and reproduction, sharks are susceptible to over exploitation. A lack of knowledge regarding their behaviour and movement patterns is a key impediment to effective management. This project aims to examine social interactions and migration patterns of Port Jackson sharks using a unique combination of genetic techniques, novel acoustic tag technology, behavioural manipulations and modern social network analysis. Once verified, the approach developed can be applied to other marine predators of particular management concern. The data generated will directly inform fisheries and conservation management policy.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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Understanding the effect of small-scale ocean process on tuna populations – a new tool to forecast tuna distributions for use in fisheries management. The western and central Pacific Ocean supports the world’s largest tuna fishery with catches contributing up to 40 per cent of revenue for many Pacific communities. These nations are dependent on these fisheries for livelihoods and economic development. Continued sustainable management of this valuable resource in the face of rapid population grow ....Understanding the effect of small-scale ocean process on tuna populations – a new tool to forecast tuna distributions for use in fisheries management. The western and central Pacific Ocean supports the world’s largest tuna fishery with catches contributing up to 40 per cent of revenue for many Pacific communities. These nations are dependent on these fisheries for livelihoods and economic development. Continued sustainable management of this valuable resource in the face of rapid population growth and climate variability and change is a challenge. Using observationally derived information of skipjack tuna, the project aims to develop a novel tuna behavioural model. This is intended to be integrated into a state-of-the-art biophysical model at resolutions capable of reproducing critical meso-scale processes, providing projections of tuna distributions that aim to aid in developing sustainable management practices.Read moreRead less
Do marine reserve networks work? Larval connectivity, sustainable harvesting and ecological resilience. The Great Barrier Reef is a globally iconic marine ecosystem and benefits from the world's largest network of no-take reserves. While we know reserves contain more and bigger fish, several key questions about how reserves contribute to sustainable harvesting, protecting biodiversity and resisting climate change remain unanswered. Answers depend on a new understanding of the degree to which fis ....Do marine reserve networks work? Larval connectivity, sustainable harvesting and ecological resilience. The Great Barrier Reef is a globally iconic marine ecosystem and benefits from the world's largest network of no-take reserves. While we know reserves contain more and bigger fish, several key questions about how reserves contribute to sustainable harvesting, protecting biodiversity and resisting climate change remain unanswered. Answers depend on a new understanding of the degree to which fish population on different reefs are connected, and whether or not reserve networks help sustain these linkages. This project will use new technologies to measure the transport of fish larvae between reefs, to assess strengths and weaknesses of the reserve network, and examine ways to improve species protection and sustainable harvesting in a changing climate.Read moreRead less