Tasmania's Marine Atlas
Marine spatial planning (MSP) has emerged in recent years as a tool for sea use management. However, MSP requires adequate and accurate information on the biophysical state and usage of the marine environment. Such data often exists, but generally not in a format which allows several data layers to be overlaid in order to identify potential conflicts/trade-offs.
Marine information management and data science are developing areas of research addressing how to easily access, collate and use multiple disparate sources of data to support marine ecosystem and resource management. Significant efforts are made to standardize the collection, reporting and open access to marine data in existing databases and platforms, but these platforms commonly use specific (and differing) sources and types of data. Challenges arise from disparities in spatiotemporal resolution, uncertainty in geographic positioning, diversity of data sources and types, lack of access, and often limited metadata standards within and across scientific disciplines. To address this problem, this project will identify, compile and standardize spatially-resolved datasets required for marine social-ecological system management for Tasmanian State waters. No new field-based data will be collected, although secondary analysis may create new datasets. Rather than duplicating effort, this project builds on accessible databases and platforms to provide recommendations on the availability and best practices of using marine data to support data-driven decision-making processes in Tasmanian waters.
Perhaps more importantly, this project will also compare various off-the-shelf tools to identify trade-offs at various scales and resolutions of interest. Currently, many off-the-shelf spatial multi-criteria decision-analysis tools and methods exist (e.g. Marxan, CommunityViz, SSANTO…). More have been developed for more specific uses (e.g. the Aquaspace tool - developed to plan trade-offs with aquaculture in Europe). Research is required to identify the most appropriate tools for use in identifying conflicts/trade-offs in Tasmanian waters, given the needs of decision-makers and the available data.
Finally, this project will provide planning for database longevity.
Final report
Aquafin CRC - Atlantic Salmon Aquaculture Subprogram: commercial AGD and salmon health project
Can commercial harvest of long-spined sea urchins reduce the impact of urchin grazing on abalone and lobster fisheries?
Seafood CRC: quantifying physiological and behavioural responses of cultured abalone to stress events
Rock Lobster Enhancement and Aquaculture Subprogram: propagation techniques
Expansion of output from the rock lobster fishery cannot be achieved using traditional fishing methods as most wild stocks are already fully exploited. It is therefore necessary to develop an aquaculture technique that can increase the long term production of rock lobster, in a sustainable manner.
The outcomes of the FRDC workshop (project 98/300) and an earlier Perth workshop sponsored by the DISR, confirmed that culture of puerulus from eggs is biologically feasible and also appears economically viable. Production of puerulus from eggs has been achieved on a small scale in both Japan and NZ. The Japanese are far enough advanced to be considering release of cultured puerulus onto artificial reefs in the next few years. In Tasmania the phyllosoma of the southern rock lobster have been reared through 70% of the larval cycle with good survival (25%).
The priorities for further research were identified as:
· improving larval survival & growth
· improving system design/environmental requirements
· improving nutrition
· reducing the length of the larval phase.
Lower priorities were identified as:
· out of season spawning
· improving gamete quality.
However, as gametes are readily available from wild-caught broodstock, it was considered that these issues could be left for a future project.
The next stage must be to coordinate and expand the research in Australia under one project through the FRDC and CRC, in order to focus our effort on addressing the research priorities that were identified during the workshop.
This project identifies the priorities for the first year of the project and addresses a few issues that need to be determined in order to design a longer term project.