Microprocessor controlled passive sonar for fisheries studies
Assessment of the impacts of seal populations on the seafood industry in South Australia
The last 25 years have seen a 3.5 fold increase in the population size of New Zealand fur seals (NZFS) in SA, which now number over 85,000 individuals. This recovery may continue for a further 15-30 years, and the level at which populations may stabilise is unknown. New haul-out sites and breeding colonies are establishing across the State, some in close proximity to finfish aquaculture, and major commercial and recreational fishing areas. In addition, an Australian fur seal population has recently established in SA and has more than doubled in the last five years. There is also growing concern from the seafood and ecotourism (little penguins, giant cuttlefish) industries and the community that fur seals are overabundant and that their populations and impacts need to be managed. As a consequence of this broad industry and public concern, this project was listed as one of the priority areas for investment by the SAFRAB.
Most of the seals that interact with fisheries, aquaculture and ecotourism are juvenile and sub-adult males that restrict their feeding the shelf waters; however the diet and foraging behaviour of this part of the population is poorly understood. Little is also understood about the potential competitive interactions between the three species of seals that may be limiting the recovery of the threatened Australian sea lion. The project aims to investigate the diets and foraging distributions of seals in SA’s gulf and shelf waters to assess the importance of commercial fish and finfish aquaculture species in their diet. Trophic modelling will be used to assess the impact of consumption on current and future seafood production, and industry questionnaires and consultation will be used to assess the economic impact and the degree and nature of interactions between seals and finfish aquaculture, fisheries and marine ecotourism industries.
Final report
Tactical Research Fund: Extension of fisheries research and development funded research results on improved bycatch reduction devices to the Queensland East Coast Otter Trawl Fishery
A unique opportunity exists to capture the results of the recent FRDC funded research project “Reducing the impact of Queensland's trawl fisheries on protected sea snakes (Project No. 2005/053)”, and fast track adoption of these results by the Queensland East Coast Otter Trawl Fishery (ECOTF). The project results estimate the capture of approximately 100,000 sea snakes annually within the ECOTF. The red-spot king prawn sector of the fishery, which is a reef-associated prawn fishery, accounted for about 59% of all sea snake catches and 85% of mortalities. Fisheye Bycatch Reduction Devices (BRD) were shown to reduce sea snake capture by around 62%. Adoption of these devices, including appropriate installation and maintenance, within the red-spot king prawn sector of the ECOTF alone would result in a significant reduction in trawl fishery induced sea snake mortality in Queensland, and the Great Barrier Reef Marine Park. The fisheye BRD was also equivalent to the Square Mesh Codend (SMC) BRD as the most effective devices to reduce bycatch tested in the project. The main difference between the two being that the fisheye is better at excluding large thick snakes than the SMC. These results offer an outstanding opportunity for the trawl fishing industry to significantly reduce an identified ecological impact.
The project also extends the results of the FRDC funded research project “A collaborative extension program by the Queensland Department of Primary Industries & Fisheries, SeaNet and Ecofish for the development and adoption of square mesh codends in select prawn and scallop trawl fisheries in Queensland (Project 2005/054)”.
This work would align with the outcomes of the DEWHA assessment of the ECOTF for the purposes of accreditation under Parts 13 (protected species) and 13A (export approval) of the EPBC Act 1999.
Final report
Seagrass strategic review and development of an R&D Plan - communication extension
Echo sounder, elementary sonar and radar operation workshop
Final report
Development of generic contingency plans for disease emergencies of aquatic animals
Development of contingency plans for significant aquatic animal diseases is a critical first step in the management of disease outbreaks. In this respect, aquatic animal health policy development is lagging behind terrestrial animal health policy by approximately 20 years.
At the Melbourne workshops, all sectors of the fishing industry strongly supported the need for a national approach to aquatic animal disease control issues and identified the writing of contingency plans for disease incursions to be an important task. Also they noted there was a need to build on the unanimous support for this contingency planning process and there was an expectation that some generic, sectoral plans could be developed very rapidly.
Final report
Project products
Aquaculture-Community Futures: North West Tasmania
To secure the future of Australian aquaculture, building and maintaining a sufficient level of support and trust from interested and affected communities is vital. Worldwide, there have been several examples of where aquaculture operations have been threatened because of a lack of societal acceptability. In Australia, a recent example of this has been the environmental non-governmental organisations (eNGOs) campaigns against proposed fish farm operations in Okehampton Bay on Tasmania’s east coast (Murphy-Gregory, 2017). In the Tasmanian context, attitudes toward the commercial exploitation/use of natural resources involve multi-dimensional, often conflicting, values often with a spatial dimension (see Evans, Kirkpatrick & Bridle 2018).
FRDC Project 2017-158 ‘Determinates of socially-supported wild-catch and aquaculture fisheries in Australia’ has revealed that several factors contribute towards achieving community acceptance: the perception that a company offers benefits; that it contributes to the well-being of the region and respects the local way of life; that it listens, responds and exhibits reciprocity; and that relations are based on an enduring regard for each other’s interests. These factors are often based on understanding and contributing towards achieving a certain state or condition of that which is valued by local and regional communities (e.g. a certain level of local employment, or of threatened habitat protection). Indeed, a lack of social acceptance for the aquaculture industry has often resulted in part from their practices being seen to, or in some cases actually, compromising the condition or state of what communities ‘value’ (feel is very important).
This project has been designed to examine the mix of community interests and values, and to identify how the aquaculture industry and regional communities can participate in processes of negotiation, to contribute towards the achievement of desired conditions or states of community values, using NW Tasmania as a case study.
Final report
This report discusses a study conducted by the Institute for Marine and Antarctic Studies at the University of Tasmania on marine and costal wellbeing and how it can be considered in regional marine and coastal development decision making. The need for this project arose from a desire by selected Tasmanian aquaculture industry members to better understand levels of community acceptability of their operations (or ‘social license to operate’). The study used a mixed methods approach that combined participatory mapping, qualitative and quantitative primary data, and desk-top research to develop this framework. Wellbeing was found to be comprised of three dimensions: material, relational and subjective. The material relates to welfare or standards of living. The relational is about social relations, personal relationships, and access to the resources we need. The subjective is about how we perceive our individual experience of life. Specific marine and coastal places matter to well-being. Considering wellbeing in the decision-making process is challenging because some aspects are difficult to measure.