Periodic Reporting for period 1 - SEAwise (Shaping ecosystem based fisheries management)
Reporting period: 2021-10-01 to 2023-03-31
SEAwise approaches this aim by building a network of stakeholders, advisory bodies, decision makers and scientists to co-design key priorities and approaches to EBFM and to ensure SEAwise’s continued impact long after the project period, assembling a new knowledge base on European fisheries interactions with social and ecological systems that integrates scientist and stakeholder experience based knowledge, developing predictive models of fisheries interactions with social and ecological systems to evaluate, select and implement EBFM strategies across Europe accounting for changes in the environment and use of marine space and providing ready-for-uptake advice for EBFM for Mediterranean, western and northern European waters.
SEAwise initiated innovative activities to provide ecological and social indicators of key priorities, including indicators for which documentation in the peer reviewed knowledge is currently lacking. The work includes social indicators of the performance of current management towards indicators of economic aspects, the balance between small and large-scale fisheries, coastal communities and human health benefits. The efficiency of the current governance in defining and attaining aims for management was reviewed and a mismatch in the balance between social and ecological system status and driver indicators was identified between the scoping exercise and the management system. The health impact of different fish and fish sizes was documented in a look-up table of the benefits to different population groups.
The work towards improving predictability of future productivity by incorporating ecosystem effects on fish stocks included studies of fish recruitment, growth and survival. Density proved to be an important factor impacting productivity as did various environmental impacts. Incorporating these factors improved predictions of recruitment and growth for some species, whereas others attained the greatest predictability using simple methods such as those currently used in many assessments. Effects of fishing on the ecosystem have been modelled, providing a catalogue of the effects on potentially endangered and threatened species, habitats, food webs and marine litter. This catalogue extends methods previously only applied in some regions such as the ICES FBIT approach to benthic impact and marine litter models to new regions, thereby providing comparable results across large European areas. Maps of the distribution of fish and fisheries have been assembled for all regions and the likely effects of future environmental change investigated. The results show that the climate induced changes may be smaller than is often speculated. Increasing the extent of limiting habitats can potentially increase fish biomass and yield, thereby aiding in the rebuilding of fish stocks and social benefits of these.
Modelling fish stocks and their interactions revealed that the current management approach leads to suboptimal exploitation of the stocks from both a social and an ecological perspective. A more flexible approach may help decrease overexploitation where needed and increase catches of currently underexploited stocks. In general, trade-offs exist between social indicators of food supply, health benefits and economic income and ecological indicators measuring impact of fishing on the ecosystem.
The project contributes to the restoration and conservation of coastal and marine Social-Ecological Systems, whilst finding a compromise between maximising benefits to fisheries and minimising adverse effects throughout. Maximising society's readiness to implement new research knowledge from SEAwise is crucial in attaining the full impact of the scientific advice for consumers and policy makers produced in the project. For this reason, collaborative networks are an integral part of SEAwise, ensuring that results remain relevant, readily understandable and applicable to decision-making by policymakers, producers, influencers and consumers. The communication strategy targets dissemination activities to a variety of audiences, bringing significant benefits to public understanding, consumer behaviour and policy decisions. SEAwise results and products are reviewed by expert end users, ensuring co-construction and integration of comments.