To meet the projected seafood demand by 2030 Australian aquaculture needs to increase its rate of growth in both production and competitiveness (FRDC 2016). Extensive R&D efforts have been invested in more than 90 aquaculture species over the last five decades in Australia. Nonetheless, fewer than 10% of these species have reach recognized production in either tonnage or value. Presently, only Atlantic salmon, tiger prawn, barramundi and oysters are considered as major aquaculture species in Australia. This highlights the need to identify possible gaps in our research and extension activities, and the barriers to successful commercialization of new aquaculture species.

Importantly, research interest alone is unlikely to be sufficient to drive aquaculture production of targeted species. The observed limited production or lack of investment in new species may indicate differences in new species preferences among the relevant stakeholders, i.e. scientists, consumers, traders, investors, producers, policy makers and regulators. These differing perspectives should therefore be analysed to provide a better understanding of the conditions required for successful development of a new aquaculture species.

The project proposed here - “Auditing research effort on aquaculture species and industry adoption for production growth” - is consistent with national priorities and strategies of both FRDC and CSIRO. Under the FRDC’s Research, Development and Extension (RD&E) Plan 2015-20, one of three national priorities is to develop new or emerging aquaculture growth opportunities with the aim of delivering RD&E to help promote the establishment of one or two species at commercial scale production. To address this priority the FRDC has established the New and Emerging Aquaculture Opportunities (NEAO) subprogram. Similarly, CSIRO Aquaculture has continuously emphasized the importance of delivering innovative impacts that transform aquaculture production in more-sustainable ways. This implies either removing identified barriers for current aquaculture species or investing in targeted strategic R&D on carefully-selected new species in collaboration with industrial partners.

There is clearly a concern in the Tasmanian lobster industry about the status of inshore component of the stock. Catch has declined in a number of areas, despite improvements in catch rates. In the Northeast, catch is at record lows, but CPUE has remained stable, which is a possible indicator of hyper-stability or false stability. The apparent stability in catch rates occurs because aggregations containing a major proportion of the population are fished down, as the fleet moves from one area of good catch rates to the next, resulting in a serial depletion of the aggregations, which is masked by the apparent stability in the fishing block. This can result in a very sudden decline in biomass once the entire block is depleted, posing a serious and immediate risk to the inshore component of the stock. There are two potential sources of this problem. Firstly, the scale of the current assessment model, of eight inshore areas (64m) and three offshore areas (>64m) is not be fine enough to detect localised changes in the CPUE or biomass. Secondly there are changes in fishing practices that have increased effort on inshore stocks, and it is unclear whether the extra effort in these practices is adequately recorded in estimates of CPUE. There has been a recent increase in potting effort, commonly referred to as double night fishing, whereby fishers set and haul their pots twice a night, compared to the standard practice of emptying pots once at dusk and/or once during the day. Currently we have no data on the composition of the catch in double night shots, and what proportion of captured lobsters are handled and released, and in fact what consequence this handling has on the overall health of the fishery.