Understanding Drivers Of Jellyfish Blooms In The Hawkesbury Estuary
Funder
Fisheries Research and Development Corporation
Funding Amount
$196,722.00
Summary
Jellyfish blooms disrupt commercial fisheries around the world and blooms are increasing in frequency and magnitude in some regions (Condon, Pitt et al. 2013). Although the causes of jellyfish blooms are debated, they are frequently linked to anthropogenic pressures, including eutrophication, expansion of coastal infrastructure, and climate change (Pitt et al. 2018). The current jellyfish bloom in the Hawkesbury estuary is more extensive, persistent, and disruptive than previous blooms and .... Jellyfish blooms disrupt commercial fisheries around the world and blooms are increasing in frequency and magnitude in some regions (Condon, Pitt et al. 2013). Although the causes of jellyfish blooms are debated, they are frequently linked to anthropogenic pressures, including eutrophication, expansion of coastal infrastructure, and climate change (Pitt et al. 2018). The current jellyfish bloom in the Hawkesbury estuary is more extensive, persistent, and disruptive than previous blooms and may represent a long-term and sustained change to fishing conditions in the estuary. Some fishers have said they will leave the industry if blooms persist, hence this project is needed to reduce interactions between jellyfish and commercial net fishers and ensure the on-going viability of commercial net fisheries in the Hawkesbury.
The project specifically addresses the FRDC priority call for "Understanding the drivers of jellyfish blooms in the Hawkesbury". We will review the scientific literature and analyse existing data sets on water quality and jellyfish to identify probable environmental drivers of jellyfish blooms in the Hawkesbury estuary, which will enable estuary managers to prioritise which environmental conditions to manage to reduce jellyfish blooms. We will search for novel technical solutions (such as modifying fishing times or locations) that could reduce by-catch of jellyfish, assess potential ways to actively manage jellyfish (through their extraction or biological control), and co-design a long-term jellyfish monitoring program based on world best-practice with estuary managers and fishers to initiate the long-term collection of jellyfish data by stakeholders, which is essential for understanding jellyfish population dynamics and developing predictive models for jellyfish.
The drivers of jellyfish blooms in the Hawkesbury estuary may be linked to recent major floods. Floods are predicted to become more extreme and frequent under climate change. Hence our proposal aligns with FRDC's strategic investment opportunity for improving resilience of fishing in a changing climate. By providing information critical for managing jellyfish populations, our project also meets FRDC's F&D Plan Outcome 1 to "expand environmental management to cover areas other than stock status of target species". Through recruitment, mentoring and career development of a research fellow, our project builds capacity and capability of Australia's fisheries research and development sector (FRDC Enabling strategy IV).
Objectives: 1. Review the environmental drivers of jellyfish blooms, methods used by commercial fishers to manage interactions with jellyfish and methods that could be used to control jellyfish populations. 2. Collate and analyse existing data sets on water quality and jellyfish to identify potential drivers of jellyfish populations 3. Review jellyfish monitoring programs and co-design with stakeholders a fit-for-purpose and on-going jellyfish monitoring program for the Hawkesbury estuary 4. Engage stakeholders to locate relevant data sets and disseminate findings to end-users and beneficiaries Read moreRead less
Development Of Technical And Extension Material To Support Murray Cod Aquaculture Industry Expansion In Australia
Funder
Fisheries Research and Development Corporation
Summary
The 5 July 2017 meeting of representatives from the various States involved in the Murray Cod industry agreed to three key R&D priorities to support expansion of the Murray Cod industry in Australia. They included:
1. Development of a farm management plan/manual to: provide advice on optimising production systems and water quality; review and update of existing Murray Cod culture guidelines using recent relevant publications and input from commercial operators; and identify any informa ....The 5 July 2017 meeting of representatives from the various States involved in the Murray Cod industry agreed to three key R&D priorities to support expansion of the Murray Cod industry in Australia. They included:
1. Development of a farm management plan/manual to: provide advice on optimising production systems and water quality; review and update of existing Murray Cod culture guidelines using recent relevant publications and input from commercial operators; and identify any information gaps 2. Off Flavour. Review of recent publications/work from other sectors (eg Barramundi) to prevent off flavor in Murray Cod. Murray Cod quality product assurance; and 3. Fish health and treatment (parasites, bacterial infection, Lurnea, Chilodonella, ratty tail). Review and update information on treatment options (chronic/prophylactic) for Murray Cod. Murray Cod health management strategy
This project proposal aims to address these high R&D industry priorities by developing a range of technical and extension material.
The Murray Cod industry is developing rapidly in Australia increasing from 250t 2014/15 to over 500t 2016/17. Industry forecast several thousand tonnes production by 2020 with many new farms seeking approval and new franchise business models moving forward. To capitalise on this expansion, there is a pressing need to improve extension resources.
Objectives: 1. Development of best practice production guidelines for Murray Cod aquaculture, to be used nationally 2. Extension to industry, and new investors, of the best practice production guidelines Read moreRead less
Improving Southern Rock Lobster On-vessel Handling Practices, Data Collection And Industry Tools For Lobster Quality Assessment
Funder
Fisheries Research and Development Corporation
Funding Amount
$538,604.00
Summary
The export of Southern Rock Lobster (SRL) from Southern Australia to international markets is one of Australia's most valuable fisheries. There are increasing trends in post-harvest mortality of SRL confirmed by the recent Fisheries Research and Development Corporation project (FRDC 2016-235). This is costing the industry millions due to stock losses, decreased consumer confidence in product quality and reputational damage to the SRL market brand. The causes of this increased post-harvest mortal ....The export of Southern Rock Lobster (SRL) from Southern Australia to international markets is one of Australia's most valuable fisheries. There are increasing trends in post-harvest mortality of SRL confirmed by the recent Fisheries Research and Development Corporation project (FRDC 2016-235). This is costing the industry millions due to stock losses, decreased consumer confidence in product quality and reputational damage to the SRL market brand. The causes of this increased post-harvest mortality are inconsistent across the industry sector with a range of factors implicated including environmental stressors, novel health conditions, and sub-optimal post-harvest practices. Results from (FRDC2016-235) indicate a need to optimise live lobster management processes across the entire post-harvest chain of custody in-order to minimize lobster mortality and enhance the economics of the SRL fishing and processing industry sectors.
The FRDC SRL live holding project (2016-235) conducted an analysis of the processing industry sector practices and provided guidance for best practices. These recommendations have been welcomed by the industry and further consultation has identified a critical need to extend this approach to the fishing component of the industry.
This project will address these key industry priorities and conduct an analysis of on-vessel live lobster handling and holding practices, quantify the impact of systems and practices on lobster quality and provide recommendations on improving on-vessel post-harvest practices. The current FRDC traceability project (FRDC 2016-177) is trialing a range of traceability technologies that this proposed new project will extend and enhance on-vessels to strengthen the capture, monitoring, and analysis of post-harvest data on lobster welfare, quality, and handling practices.
This project will also extend the development of practical and easy to use tools for the evaluation of lobster health including the handheld lactate meter and refractive index. Building evidenced-based approaches to measuring health and stress will provide all industry sectors with improved measurement of quality, animal welfare, and sustainability at all points in the supply chain.
Objectives: 1. Investigate the impacts of on-vessel handling and maintenance practices on live SRL post-harvest performance 2. Develop practical tools for the improved management of SRL industry live lobster operations (ie hand-held lactate meter and refractive index including thresholds for poor lobster performance) 3. Extend findings to the SRL industry (best practice guides and workshops) and incorporation of results into the SRL Clean green program. Read moreRead less
Seaweed Production As A Nutrient Offset For Moreton Bay
Funder
Fisheries Research and Development Corporation
Funding Amount
$370,000.00
Summary
Moreton Bay is a 1,500 km-squared urbanised estuary adjacent to one of the fastest growing regions in Australia. Rapid population growth creates a challenge for wastewater utilities to deal with the increase in nutrient loads. This includes the single largest asset of Queensland Urban Utilities (QUU), the Luggage Point Sewage Treatment Plant, at the mouth of the Brisbane River that discharges into the bay. At the same time, on the eastern side of Moreton Bay, the Queensland rock oyster indu .... Moreton Bay is a 1,500 km-squared urbanised estuary adjacent to one of the fastest growing regions in Australia. Rapid population growth creates a challenge for wastewater utilities to deal with the increase in nutrient loads. This includes the single largest asset of Queensland Urban Utilities (QUU), the Luggage Point Sewage Treatment Plant, at the mouth of the Brisbane River that discharges into the bay. At the same time, on the eastern side of Moreton Bay, the Queensland rock oyster industry faces reduced productivity due to environmental change, disease and algal blooms, and challenges associated with the business risks presented by monoculture. Here, communities on Minjerribah (Nth Stradbroke Island) are also investigating new opportunities during their transition away from sand mining, and Quandamooka Yoolooburrabee Aboriginal Corporation (QYAC) has Native Title on a large tract of the Moreton Bay Marine Park, which to date is mostly unutilised.
Seaweed production offers a unique and timely solution to address some of the economic, environmental and social challenges in Moreton Bay. Seaweed farming is a “no-feed” form of aquaculture; it is zero waste and compatible with oyster farming and marine park zoning. Seaweeds grow quickly and strip nutrients from the water column, draw down carbon dioxide and can remove pollutants such as heavy metals. At the right scale, seaweed farming will reverse environmental change. Because of this, QUU and the University of the Sunshine Coast (USC) are evaluating how much nutrient can be extracted from the bay as an offset for their discharge licences, to avoid substantial capital investment in sewage treatment whilst delivering better environmental outcomes for each dollar spent.
At more than 25 million tonnes per year, seaweed is the largest marine crop in the world. Southeast Queensland is the perfect setting for developing a seaweed industry – ample light, warm water and existing aquaculture leases with farmers, such as Moreton Bay Rock Oysters (MBRO), seeking to diversify their production. Investing in seaweed production will create a new industry for our coastal communities with accountable environmental services and sustainable products.
Objectives: 1. Compare and contrast the nutrient offset and sequestration potential of target seaweeds in controlled experiments 2. Evaluate seaweed production systems using commercially available aquaculture equipment during the scale-up of target seaweeds 3. Determine the yield and properties of harvested seaweed from a year-round pilot production trial at two sites within Moreton Bay 4. Assess the potential effects of seaweed culture on water quality and adjacent marine animals and vegetation 5. Model the removal of nutrients, carbon and other pollutants and the offset capacity of seaweed farming for Moreton Bay Read moreRead less
Where Should I Farm My Oysters? Does Natural Cadmium Distribution Restrict Oyster Farm Site Selection In The Northern Territory?
Funder
Fisheries Research and Development Corporation
Funding Amount
$123,272.00
Summary
RD&E that addresses critical hurdles to Aboriginal capacity and enterprise development (e.g. quality assurance strategies) have been identified as priority areas of the NT RAC and the Indigenous Reference Group (IRG). NT Fisheries has been conducting research to support Aboriginal aspirations to establish tropical oyster farms in the Northern Territory (NT).
Heavy metals have been a longstanding concern as an impediment to the development of a tropical oyster industry. Cadmium (Cd) bioa ....RD&E that addresses critical hurdles to Aboriginal capacity and enterprise development (e.g. quality assurance strategies) have been identified as priority areas of the NT RAC and the Indigenous Reference Group (IRG). NT Fisheries has been conducting research to support Aboriginal aspirations to establish tropical oyster farms in the Northern Territory (NT).
Heavy metals have been a longstanding concern as an impediment to the development of a tropical oyster industry. Cadmium (Cd) bioaccumulates in the tissue of oysters, and unlike E. coli or toxic algae, has a long depuration period. As a result Cd levels are a major determining factor on the saleability of farmed tropical oysters. McConchie, D.M & Lawrance, L.M (1991) and FRDC Project 2012-223 identified high Cd concentrations, which varied considerably across locations and water depth, in blacklip oysters (Saccostrea echinata) at location in Shark Bay, WA and South Goulburn Island, NT respectively. Following these projects naturally occurring heavy metals have been a presumed barrier to the establishment of an oyster industry in the NT, due predominantly to the exceedance of Cd trigger levels in the Food Standards Australia and New Zealand (FSANZ).
However, recent testing on market sized oysters farmed on long line trials at Pirlangimpi on Tiwi Islands have not shown high heavy metal concentrations and complied with the FSANZ. This suggests that Cd exceedance may not be an issue in all locations. We propose a multi-location survey of blacklip oyster (Saccostrea echinata) heavy metal concentrations across the NT to identify the best locations for commercialisation of this emerging aquaculture species. With the aim of identifying locations, like Pirlangimpi, that could produce oysters that comply with the Food Standards Australia and New Zealand (FSANZ). The results are needed to inform the development of a NT tropical oyster industry and the establishment of a NT shellfish quality assurance program. Objectives: 1. Map the distribution and concentration of Cadmium in wild blacklip oysters across the Northern Territory. 2. Aboriginal communities better understand the role of shellfish quality assurance programs and the implications of Cadmium on oyster farming. 3. Risks associated with Cadmium are better understood and inform the development of a NT Shellfish Quality Assurance Program. 4. Knowledge is shared and retained through Aboriginal participation in the research project. Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE220100907
Funder
Australian Research Council
Funding Amount
$434,107.00
Summary
Tracking groundwater variations via 4-dimensional seismic imaging. This project aims to develop an advanced seismic framework to sense subtle subsurface changes related to groundwater variations beneath the Great Artesian Basin. Groundwater storage is subject to climatic and anthropogenic forcing, but modern monitoring tools are not sufficient to capture its detailed response in both time and space. Using novel techniques and extensive seismic recordings, this project expects to generate time-la ....Tracking groundwater variations via 4-dimensional seismic imaging. This project aims to develop an advanced seismic framework to sense subtle subsurface changes related to groundwater variations beneath the Great Artesian Basin. Groundwater storage is subject to climatic and anthropogenic forcing, but modern monitoring tools are not sufficient to capture its detailed response in both time and space. Using novel techniques and extensive seismic recordings, this project expects to generate time-lapse images across the basin in unprecedented resolution to reveal the system's dynamic evolution and a static basin model to aid the interpretation. Potential benefits include improved geophysical techniques for groundwater tracking and enhanced scientific understandings to underpin future groundwater management.Read moreRead less
Improving water quality modelling by better understanding solute transport. Poor stream water quality is a critical problem in Australia and globally. Stream water quality depends directly on pathways and time taken for water to transport pollutants through catchments. Predicting these pathways is highly challenging and currently requires specialised data. This project aims to better model the movement of water from rainfall to streams, enable greatly improved use of water quality data routinely ....Improving water quality modelling by better understanding solute transport. Poor stream water quality is a critical problem in Australia and globally. Stream water quality depends directly on pathways and time taken for water to transport pollutants through catchments. Predicting these pathways is highly challenging and currently requires specialised data. This project aims to better model the movement of water from rainfall to streams, enable greatly improved use of water quality data routinely collected in Australia's catchments and thereby better predict water quality behaviour. Proposed field studies aim to support this development. The outcomes sought are improved planning and management of water quality in our rivers, lakes and estuaries, improved health of these water bodies and improved water supplies.Read moreRead less
Storm Bay Research Program Management, Governance And Extension
Funder
Fisheries Research and Development Corporation
Funding Amount
$636,438.94
Summary
Proposed salmon aquaculture expansion in Storm Bay has created the Tasmanian State Government (PA and EPA) need for a suite of research to be undertaken by CSIRO and IMAS to assist planning and regulation. Given the complexity of the Storm Bay research and implications for Salmon planning and regulation, and necessary community communication, there is a need for ‘Storm Bay Project’ governance and communication support as follows:
1) A Project Manager, to be engaged by FRDC will require ....Proposed salmon aquaculture expansion in Storm Bay has created the Tasmanian State Government (PA and EPA) need for a suite of research to be undertaken by CSIRO and IMAS to assist planning and regulation. Given the complexity of the Storm Bay research and implications for Salmon planning and regulation, and necessary community communication, there is a need for ‘Storm Bay Project’ governance and communication support as follows:
1) A Project Manager, to be engaged by FRDC will require a 0.5 FTE role (to be reviewed 6 and 12 months for adequacy and need), will coordinate Project Governance (relating to the IMAS and CSIRO research suite) and provide direct reporting to the Steering Committee, against the agreed work plan on progress, achievements or challenges. The Project Manager will chair the various sub-committees, and manage consultants and communication releases to develop and ensure integration of monitoring and research, delivery of outcomes, and public reporting. The PM will also be responsible for coordinating engagement between the steering committee and independent governance committee. An operational in-direct cost will be needed for computer, stationary, catering and transport costs for the function on the Project Manager.
2) Communication Advisory Sub-committee support as required a) Consultant support is needed to create the Storm Bay Project communication strategy and communication products,
3) Community Reference Group Support as required a) Support for an independent convener is requested to create a Community Reference Group that will provide community input into the Storm Bay Project communication strategy b) A research evaluation of the Community Reference Group outputs is warranted to assess and improve community engagement and communication (Dr Alexander)
4) Tasmanian State Government see the need for the outputs of all 3-research projects to be independent externally reviewed and that the findings be-released into the public domain. Support for an external Independent Review Panel of the CSIRO and IMAS research suite outputs will be sought via a future project extension (proposal to be prepared by the Project Manager). Objectives: 1. Support Storm Bay Project communication strategy development, public communication and evaluation 2. Provide governance support to the Storm Bay Project 3. Develop a project extension in order to undertake an independent peer review of science outputs from this CSIRO and IMAS research suite Read moreRead less
Assessing The Capacity For Sustainable Finfish Aquaculture In The Vicinity Of Seagrasses
Funder
Fisheries Research and Development Corporation
Funding Amount
$478,825.00
Summary
Globally, aquaculture accounts for over 50% of fish production. However, if poorly planned, rapid expansion to meet the ever increasing demand for seafood brings with it an environmental risk associated with eutrophication and organic enrichment of the seabed, adversely affecting marine coastal ecosystems. Approximately 75-85% of the nitrogen discharged from finfish aquaculture is dissolved and dispersed to nearby habitats. A major spatial constraint on aquaculture in nearshore areas around much ....Globally, aquaculture accounts for over 50% of fish production. However, if poorly planned, rapid expansion to meet the ever increasing demand for seafood brings with it an environmental risk associated with eutrophication and organic enrichment of the seabed, adversely affecting marine coastal ecosystems. Approximately 75-85% of the nitrogen discharged from finfish aquaculture is dissolved and dispersed to nearby habitats. A major spatial constraint on aquaculture in nearshore areas around much of Australia is the potential for these dispersed nutrients to negatively affect seagrasses. Seagrasses can be sensitive to increases in nitrogen, which can lead to habitat loss. This loss can have significant environmental and economic impacts with potential losses of ecosystem services including decreases in commercial and recreational fisheries catches, increases in sand instability and erosion, reduced biodiversity, loss of nitrogen assimilation and cycling, and loss of carbon sequestration.
In other situations, small increases in nutrients may have a positive effect on seagrasses, and thus it is not clear what the consequences of aquaculture derived nutrients will be. Subsequently, we can’t robustly determine the level of finfish aquaculture that can be sustainably supported by seagrass ecosystems. There is therefore a need to develop a process to determine the likelihood of seagrass growth (or loss) due to aquaculture derived nutrient inputs. This work will develop metrics that can be used in other aquaculture developments and in long-term regional monitoring.
Clean Seas Seafood Pty Ltd are developing a new lease for the sea-cage aquaculture of 4500 tonnes of yellowtail kingfish (YTK) in the Fitzgerald Bay region. The nearshore habitats throughout the region are dominated by long-lived Posidonia seagrass. While Fitzgerald Bay was the original focus of YTK aquaculture in SA, it has not been utilised for ~10 years, essentially giving us the potential to study this system prior to the commencement of aquaculture (currently planned for ~ July 2019), as well as while production is increasing, and it thus provides an ideal case study for assessing how to sustainably farm finfish in a seagrass dominated ecosystem.
Objectives: 1. Determine cost-effective approaches to assessing the influence of finfish aquaculture derived nutrients on seagrasses, and using Fitzgerald Bay as a case study, what that influence is. 2. Develop a predictive modelling ability to estimate carrying capacity and allow scenario analysis of future aquaculture development and how it might affect seagrasses, to allow managers to make informed decisions about where to place future developments, and how much to allow existing developments to expand. 3. Use Fitzgerald Bay as a case study to document seagrass condition using a range of metrics both before the commencement of finfish aquaculture, and once production has reached a substantial level. 4. Develop a range of cost-effective indicators for monitoring the effects of aquaculture on adjacent seagrass beds. Read moreRead less