Lost at sea? Understanding adaptation and dispersal in spiny lobsters. Continual recruitment of young is fundamental to the replenishment of populations, especially when a stock is fished. Existing theory suggests that species with very long planktonic larval stages disperse widely, ensuring their genes are well mixed. However, recently identified genetic differences between populations of rock lobster challenge this paradigm and demonstrate that despite larvae mixing in the ocean for years, loc ....Lost at sea? Understanding adaptation and dispersal in spiny lobsters. Continual recruitment of young is fundamental to the replenishment of populations, especially when a stock is fished. Existing theory suggests that species with very long planktonic larval stages disperse widely, ensuring their genes are well mixed. However, recently identified genetic differences between populations of rock lobster challenge this paradigm and demonstrate that despite larvae mixing in the ocean for years, local recruitment and/or adaptation are at play. Recent developments in genomics and bioinformatics should allow this project to understand the ecological processes underpinning these genetic signatures and determine their evolutionary implications. Such findings could direct targeted rebuilding of depleted fisheries stocks.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160101141
Funder
Australian Research Council
Funding Amount
$366,000.00
Summary
Critical regions and network connectivity of coral reef ecosystems. This project aims to measure the degree of connectivity between isolated reefs in Australia's Coral Sea and the Great Barrier Reef and identify the biological and environmental mechanisms that enhance management strategies or mitigate against disturbances. The movement of individuals in fragmented landscapes plays a central role in the ecology and evolution of species. The project seeks to measure connectivity at multiple scales ....Critical regions and network connectivity of coral reef ecosystems. This project aims to measure the degree of connectivity between isolated reefs in Australia's Coral Sea and the Great Barrier Reef and identify the biological and environmental mechanisms that enhance management strategies or mitigate against disturbances. The movement of individuals in fragmented landscapes plays a central role in the ecology and evolution of species. The project seeks to measure connectivity at multiple scales and identify critical regions for the design of networks of marine protected areas. This is anticipated to improve our understanding of connectivity in marine seascapes and benefit management of important fishery species and current efforts in coral reef conservation.Read moreRead less
Contemporary and retrospective genomic analyses of tiger and white sharks. This project aims to elucidate population structure and spatiotemporal changes in population distribution of tiger and white sharks; estimate the effective number of individuals across populations; and investigate signatures of adaptive evolution in tiger- and white shark populations in response to exploitation and global change. It will perform high-resolution retrospective genomic analyses using DNA extracted from conte ....Contemporary and retrospective genomic analyses of tiger and white sharks. This project aims to elucidate population structure and spatiotemporal changes in population distribution of tiger and white sharks; estimate the effective number of individuals across populations; and investigate signatures of adaptive evolution in tiger- and white shark populations in response to exploitation and global change. It will perform high-resolution retrospective genomic analyses using DNA extracted from contemporary and archival tiger and white shark skeletal material held in museum and trophy collections around the world. This project expects to gain valuable insight into the biology of both species and provide information for conservation and management purposes.Read moreRead less
Seascape genetics for shark management: an innovation in sustainable fisheries modelling. This project will use novel genetic, chemical and spatial modelling techniques to assess the long-term viability of bronze whaler and dusky shark fisheries in southern Australia. Results will be used to implement sustainable management of the fisheries to ensure persistence of these threatened sharks.