Reducing the bycatch pf juvenille bream, luderick and mullet in the NSW ocean haul fishery. To ensure long-term sustainability of the targeted species, it is imperative that the ocean haul fishery implements conservation-orientated practices. Failure to reduce the mortality of bycaught bream, luderick and mullet in the ocean haul fishery is likely to impact on the quality of both commercial and recreational fishing for these important species. The aims of the project are to (i) determine selecti ....Reducing the bycatch pf juvenille bream, luderick and mullet in the NSW ocean haul fishery. To ensure long-term sustainability of the targeted species, it is imperative that the ocean haul fishery implements conservation-orientated practices. Failure to reduce the mortality of bycaught bream, luderick and mullet in the ocean haul fishery is likely to impact on the quality of both commercial and recreational fishing for these important species. The aims of the project are to (i) determine selectivity of the existing nets used and (ii) to develop and assess modifications to gears that reduce bycatch. More specifically the utility of simple changes to existing mesh sizes and shapes to improve selectivity and bycatch reduction devices will be investigated. The expected outcomes of this project will be the conservation of hundreds of thousands of juvenile fish ensuring a better fishery, whilst also securing the economic and social structure of coastal communities that support this fishery.Read moreRead less
Do larval fish leave the reef to avoid parasites? Although fundamental to understanding the community structure of reef fishes, why fish larvae migrate to the open ocean remains controversial. Traditional explanations are that it results in dispersal, avoidance of predators, and increased food. Recent work on the Great Barrier Reef, however, suggests avoiding reef-based micropredatory parasites may be more important. To determine if this so, we will investigate the effect of parasites on larval ....Do larval fish leave the reef to avoid parasites? Although fundamental to understanding the community structure of reef fishes, why fish larvae migrate to the open ocean remains controversial. Traditional explanations are that it results in dispersal, avoidance of predators, and increased food. Recent work on the Great Barrier Reef, however, suggests avoiding reef-based micropredatory parasites may be more important. To determine if this so, we will investigate the effect of parasites on larval fish condition, performance, and susceptibility to micropredators; whether larval fish are vulnerable to reef-based micropredators; the effects of micropredators on fish settlement patterns; and whether larval fish that don't migrate have adaptations to avoid micropredators.Read moreRead less
Tracking squids from embryos to adults - novel approaches and new directions. Cutting edge acoustic tracking technology, combined with traditional tagging techniques and novel applications of trace element analysis, will allow for the life cycle of squid to be tracked through space and time - from embryonic stages through to spawning adults. Southern calamary earbones will be examined for evidence of elemental 'fingerprints' that reveal where they came from as hatchlings. This combined with trac ....Tracking squids from embryos to adults - novel approaches and new directions. Cutting edge acoustic tracking technology, combined with traditional tagging techniques and novel applications of trace element analysis, will allow for the life cycle of squid to be tracked through space and time - from embryonic stages through to spawning adults. Southern calamary earbones will be examined for evidence of elemental 'fingerprints' that reveal where they came from as hatchlings. This combined with tracking squid in Australia's biggest marine acoustic listening grid, will allow unprecedented resolution of squid life cycles. Commercial, recreational and managerial sectors are collaborating with this research to ensure sustainable management of this commercially important and ecologically crucial species.
Read moreRead less
The effect of dietary fish peptides on biomarkers of human health - the influence of processing conditions and the environment. This project links together two diverse but important areas of national importance: declining fisheries and human health. Australia is a small producer and exporter of fish but has access to significant fisheries. The Geelong Food Co-product Cluster comprises a number of fish companies facing serious problems associated with declining catches compounded by the current f ....The effect of dietary fish peptides on biomarkers of human health - the influence of processing conditions and the environment. This project links together two diverse but important areas of national importance: declining fisheries and human health. Australia is a small producer and exporter of fish but has access to significant fisheries. The Geelong Food Co-product Cluster comprises a number of fish companies facing serious problems associated with declining catches compounded by the current financial crisis. Increasing use of by-catch species and developing novel processing technology for controlled release of bioactive peptides that may reduce appetite and the tendency for overweight and obesity in consumers could provide the Australian seafood industry with a world competitive innovative technology leading to improvements in human health.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0237912
Funder
Australian Research Council
Funding Amount
$200,000.00
Summary
Acoustic tracking key marine species in Tasmania using new technology. We will use new passive listening receivers and uniquely indentifiable acoustic tags to track key marine species (squid, octopus, fish and crustaceans) in Tasmania. This technology allows us to remotely track species with a level of detail previously not available. By using a large number of receivers we will build listening 'curtains'. A series of curtains will then form a multi-species listening grid. This equipment wi ....Acoustic tracking key marine species in Tasmania using new technology. We will use new passive listening receivers and uniquely indentifiable acoustic tags to track key marine species (squid, octopus, fish and crustaceans) in Tasmania. This technology allows us to remotely track species with a level of detail previously not available. By using a large number of receivers we will build listening 'curtains'. A series of curtains will then form a multi-species listening grid. This equipment will allow us to reconstruct movement between habitats, and migration routes to better understand and manage this marine ecosystem. An important feature will involve monitoring organism movements into and out of marine protected areas.Read moreRead less
Japan, Australia and the Southern Bluefin Tuna (SBT) Fishery: Social and Political Perspectives. In 1999 negotiations over the annual tonnage of the SBT fishery allocated to Japan broke down over disagreements about how much fishing effort SBT stocks could survive. Australia resorted to the international legal system and, although Australia eventually accepted Japan's position, bilateral relations have remained troubled over SBT. Australian public perceptions of the fishery tend to be hostile, e ....Japan, Australia and the Southern Bluefin Tuna (SBT) Fishery: Social and Political Perspectives. In 1999 negotiations over the annual tonnage of the SBT fishery allocated to Japan broke down over disagreements about how much fishing effort SBT stocks could survive. Australia resorted to the international legal system and, although Australia eventually accepted Japan's position, bilateral relations have remained troubled over SBT. Australian public perceptions of the fishery tend to be hostile, especially towards the Japanese side. IN order to achieve a balance between economics and sustainability, fisheries must be managed, and management may be hampered by social and political problems. This project provides social science research to facilitate effective management of SBT.Read moreRead less