With the continuing recovery in the size of Australian-based fur seal populations post-sealing, a corresponding increase in seal interactions with domestic fishing vessels is occurring and will continue. There is an urgent need to develop effective seal bycatch prevention procedures to prevent fishing operations from being severely curtailed, or closed down, under the Environment Protection and Biodiversity Conservation Act 1999.

Following the 1999 winter blue grenadier season, incidental seal mortalities emerged as a major issue that threatened the continuation of this fishery; at least that part of the fishery harvested by factory trawlers. These trawlers had successfully developed the fishery, increasing the total grenadier catch from about 3000 t in 1996 to over 9000 t in 1999. The processed value of the factory trawler catch is now around $20 million per year (ASIC 2003) at first sale. The seal deaths in 1999 resulted in significant pressure from some environmental groups to prevent factory trawlers access to this fishery in 2000. This action would have caused significant loss of income in this sector and possibly jeopardised the future participation of factory trawlers in the fishery. There is a strong need for such vessels to demonstrate that seal bycatch can be reduced by adopting appropriate fishing procedures and gears.

It is also likely that pressures will be brought to bear on the ‘wet boats’ fishing for blue grenadier and possibly the rest of the SEF trawl fleet to take measures to reduce incidental seal captures. The study by Knuckey et al. (2002) indicated seal bycatch to occur virtually across the whole multi-species trawl fishery. Some of the results of the development and testing of SEDs and other mitigation measures by the factory trawlers in the targeted ‘single-species’ fishery under this project may be transferable to other vessel operators in the wider multi-species fishery, helping them to avoid many potential operational problems and costs. Increasing the effectiveness of SEDs in both reducing seal mortalities and minimising fish losses would be an important step in helping to gain wider industry acceptance of the potential use of these devices.

Statistics on Australian fisheries production and trade provides a source of information for a range of purposes. The information can be used to meet the needs of the fishing and aquaculture industry, fisheries managers, policymakers and researchers. It can assist in policy decisions, industry marketing strategies and the allocation of research funding or priorities. The gross value of production for specific fisheries are used for determining the research and development levies collected by government. The neutrality and integrity of GVP estimates is therefore important due to their forming the basis for research levies for each fishery. At the international level, the Department of Agriculture through Australian Bureau of Agricultural and Resource Economics and Sciences (ABARES) contributes to a number of international databases. These include databases managed by the Food and Agriculture Organisation (FAO) and the Organisation for Economic Cooperation and Development (OECD). Information at the international level can assist in international negotiations on issues such as transboundary fisheries and analysis of trade opportunities.