ESD risk assessment for under-utilised species to facilitate structural reform of South Australia's commercial Marine Scalefish Fishery
Informing the structural reform of South Australia's Marine Scalefish Fishery
South Australia’s Marine Scalefish Fishery (MSF) is currently undergoing a strategic review with the principal aim of restructuring the fishery in order to ensure its long-term sustainability and economic viability. The heterogeneous mixture of participants, fishing devices, licence conditions and regulations associated with this fishery makes the tasks of administering and managing it extremely challenging. These complexities intertwined within a highly dynamic fleet that is capable of shifting fishing effort amongst species and regions often alters the emphasis of its overarching management. Industry and Government are working collaboratively to address the inherent complexities of the fishery through firstly developing a mechanism to rationalise the fleet, then reforming its overall structure, and ultimately refining its future management. In order to optimise this structural reform, it is necessary to disentangle and understand the fleet dynamics of this extremely complex fishery. This project aims to explore the implications of strategic management options (e.g. regionalisation, licensing, ITQ’s and ITE’s) on the future structure and viability of the MSF, from resource sustainability, economic and social perspectives.
Final report
This study was undertaken by the South Australia Research and Development Institute (SARDI) in collaboration with PIRSA Fisheries and Aquaculture, BDO EconSearch, the Marine Fishers Association (MFA), Fishwell Consulting and University of Canberra. This project guided the reform of South Australia’s commercial Marine Scalefish Fishery (MSF) by providing scientific advice and analyses to underpin its implementation. The MSF is a multi-sector, multi-gear and multi-species fishery, making any management reform a complex and difficult process. Both the sustainability of key stocks and commercial fishery’s economic performance have been deteriorating over a 20-year period; significantly influenced by fishery overcapitalisation. Simply put, there were too many fishers and not enough fish to support a vibrant and sustainable commercial fishery. This was addressed through the three ‘pillars’ of the reform: regionalisation, unitisation and rationalisation. These pillars were reflected in the reform with: 1) the creation of four new zones of management; 2) implementation of individual transferable quotas (ITQs) for appropriate ‘Tier 1’ stocks; and 3) rationalisation of the commercial MSF fleet by removing one third of licences through a voluntary licence surrender program (VLSP). These pillars were supported by research on the biological, economic and social carrying capacity of the fishery. The reform was implemented on 1 July 2021 resulting in a fishery that has regional management with appropriate output controls and a reduced fleet size.
Future oysters CRC-P: Species diversification to provide alternatives for commercial production
Future Oysters CRC-P: Advanced aquatic disease surveillance for known and undefined oyster pathogens
During the February 2016 OsHV-1 outbreak in Tasmania, tracing activities in Tasmania and South Australia required substantial follow-up and surveillance to define diseased areas and prove that response measures had prevented entry of OsHV-1. This surveillance was expensive, and PIRSA and DPIPWE developed a strategy to decrease cost for future surveillance. Cost estimates for ongoing surveillance for early detection have been prohibitive, and both the Australian Pacific oyster aquaculture industries and State governments have expressed a need for more cost effective surveillance options for monitoring disease in affected areas and early detection in currently unaffected regions.
Winter mortality is a major cost impost on the Sydney Rock Oyster industry. Its current status as a syndrome of unknown cause prevents methods from being developed to minimise losses, and an improved understanding of its cause is required to begin to develop management strategies. Mitigating losses will increase profitability for the Sydney rock oyster industry.
SA oyster mortality syndrome (SAMS) is a sporadic, regionally concentrated occurrence of high mortality that is not associated with readily detectable pathogens. The use of the terms SAMS implies that these mortalities have commonalities but this is not proven. This project will aim to provide a focused approach to developing a case definition for SAMS and as a result help direct mitigation strategies to reduce or remove the problem. If a cause can be isolated, an on farm decision tool swill be developed to allow better ‘trigger point’ identification for when farm managers need to engage diagnosticians or instigate identified mitigations strategies.
Final report
This project improved understanding of methods for surveillance for several diseases of farmed oysters. Surveillance is a critical component of biosecurity and aquatic animal health activities. Surveillance supports understanding health status of populations of animals, provides evidence to support claims of freedom or understanding prevalence and increases the likelihood that a new or emergent disease can be controlled.
Mollusc diseases are less well understood than terrestrial animal and many finfish diseases and this project sought to develop understanding of three oyster diseases of substantial economic impact in the Australilan edible oyster aquaculture industries:
Pacific Oyster mortality syndrome (POMS), South Australian mortality syndrome (SAMS), and winter mortality (WM).
Sturgeon aquaculture in Australia: feasibility study
Growing a profitable, innovative and collaborative Australian Yellowtail Kingfish aquaculture industry: bringing 'white' fish to the market - RnD4Profit-14-01-027 - SA Component
Socio-ecological assessment of the ecosystems, industries and communities of Spencer Gulf
This project is a case study that addresses science needs identified in the National Marine Science Plan 2015, relating to:
i) systematic collection of environmental, social and economic baseline data;
ii) establishing a monitoring program to support effective management and conservation;
iii) incorporating social, economic and cultural data into marine assessments.
This socio-ecological assessment of Spencer Gulf is needed to evaluate and support future management of the gulfs ecosystems, industries and communities.
It will: i) improve current understanding of the web of interactions that drive patterns and trends in the Gulfs key ecological, economic and social feature and ii) help ensure that ecological, economic and social benefits from future use of the Gulf’s assets are balanced and maximised.
This assessment of Spencer Gulf is needed to build on progress towards 1) ecosystem-based management of the fishing and aquaculture sectors achieved through previous FRDC projects (see references in Goyder application attached) and 2) ecosystem-based management of the gulfs ecosystems, industries and communities (especially stakeholder engagement) achieved as part of the $2.5M industry-funded SGEDI.
Funding provided by FRDC and the Goyder Institute for Water Research are needed to ensure that momentum towards ecosystem-based management achieved through SGEDI previous projects is maintained during a period where the availability of additional industry funds is limited.