The Australian Barramundi Farmers Association (ABFA) called for an EOI via FRDC for a proposal to evaluate alternative humane harvest methods for farmed barramundi. Specifically, the ABFA identified electro-stunning as a technology of interest to further optimise animal welfare outcomes, while maintaining product quality. The association needs all available information reviewed to evaluate the technology’s potential and if recommended, to help shape the direction of future R&D into the suitability of electro-stunning for the barramundi industry. As a precursor to possible on-farm trials, the ABFA wants to better understand the nature of the technology and learn from international experience in other fish culture sectors. This full proposal addresses the ABFA’s desire for greater insight into; (a) consumer’s attitudes towards fish harvesting and slaughter; (b) the state of uptake of similar technologies by other aquaculture sectors; (c) how to adapt electro-stunning efficiently into a harvest process for a range of barramundi farm sites; (d) whether local or overseas manufacturers/agents can be engaged to co-fund tests of equipment on-farm; and (e) what requirements must be met to make that testing possible and how it would be conducted.
Approval of the EOI was subject to the full application addressing the need for the literature review to include any work on methodology for establishing product quality indicators in addition to welfare indicators (Condition 9).

Whilst a range of fisheries enhancement approaches have been applied in Australia, quantitative comparison between the outcomes achieved is lacking. The decision to use fisheries enhancement techniques can be heavily influenced by politics, especially in the recreational fishing sector. Despite the general results from past fishery enhancement activities appearing positive, not all approaches may deliver the best return on investment. Quantitative comparison of techniques is needed to enable decisions to be made with greater certainty and deliver the best value.

Broad uptake and application of some fisheries enhancement techniques by fisheries managers in Australia has been limited. A major constraint for fisheries managers has been the absence of clear comparative data on the costs and benefits for each approach and how they can be most effectively applied in different scenarios. Fisheries enhancement is widely practised around the world and quantitative assessments of the benefits of some techniques exist. Cost benefit analyses have also been conducted for some projects in Australia, but the results have yet to be consolidated and considered in the context of how they can be applied more broadly by fisheries managers.

Consolidating the knowledge base on fisheries enhancement methods will enable robust comparison of the return on investment of different approaches for various fisheries and assessment of their long-term viability and impacts on fishery sustainability. Such information will enable managers to more clearly identify the most appropriate techniques and potential benefits for their specific fisheries, leading to increased uptake and implementation. To assist uptake by fishery managers, a decision support tool is needed to enable managers to readily incorporate these approaches with other fishery management considerations.