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WP5 Status Report. Will Le Quesne Nick Polunin. School of Marine Science and Technology, Newcastle University, UK. WP5 Status Report: Introduction. Overview Science ‘Bad MPAs’ Ecospace Simulations MPA Tool Outputs Budget. WP5 Status Report: Science.
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WP5 Status Report Will Le Quesne Nick Polunin School of Marine Science and Technology, Newcastle University, UK.
WP5 Status Report: Introduction • Overview • Science • ‘Bad MPAs’ • Ecospace Simulations • MPA Tool • Outputs • Budget
WP5 Status Report: Science Are bad MPAs any good, or just a new way of making old mistakes? Current fisheries management is failing to sustain yields and biomass. Classical fisheries management has failed, we need new tools. MPAs are a new tool to successfully manage fisheries. However…… Many MPAs are smaller than advised, allow ‘exemption fleets’ And are not fully enforced. Thus comparing a modelled ‘optimum’ MPA with present fishery regulations as ACTULLY implemented is not comparing like with like.
WP5 Status Report: Science Is this a meaningful study? • Moderate to high poaching occurs in 65% of coral reef MPAs (Mora et al 2006). • Non-compliance with MPA regulations has been reported in MPAs in Europe, Africa, North America, South America, Mediterranean, Asia , Australia and Pacific Islands. • The Plaice Box was smaller than initially considered in modelling studies. • Design of the MPA network of SE Australia criticised for yielding too much to extractive industry lobbying. • Regular anecdotal reports of MPA size and regulations being degraded during the design process due to lobbying by representatives of extractive industries. • ‘Bad’ MPAs are Common!
WP5 Status Report: Science How did the study work? • spatially explicit dynamic age-structured population model • population overfished and the optimum MPA size determined • examined the effect of poaching on the long term yield • examined the effect of size reduction on the long term yield • run for a range of mobilities and fishing mortalities (F).
WP5 Status Report: Science Poaching: Official Yield Yield (kg) Poaching as proportion of Fbase
WP5 Status Report: Science Poaching: Official Yield + Total Yield Yield (kg) Poaching as proportion of Fbase
WP5 Status Report: Science Size Reduction: Total Yield Yield (kg) % reduction in MPA size
WP5 Status Report: Science Conclusions • Numerous examples show that MPAs are susceptible to reduction in size and regulations during the planning stages, and that poaching frequently occurs. • The gains in yield expected from an MPA are reduced if the MPA is smaller than recommended, or if poaching occurs. • MPAs are vulnerable to the same problems of limited application as previous classical management regulations. • Need to make sure MPAs are properly planned and enforced to avoid facing the same problems with limited application of management regulations as currently besets fisheries management.
WP5 Status Report: Science Ecospace Simulations: • Simulating existing (and proposed) MPAs (D5.2) • Testing objective criteria for MPA placement (D5.3)
WP5 Status Report: Science D5.2 Ecospace Simulations: • Three MPAs in each LME Analyses run as comparative analyses to emphasise qualitative results
WP5 Status Report: Science D5.2 Ecospace Simulations: • Northern Benguela Current: Juvenile Hake MPA
WP5 Status Report: Science D5.2 Ecospace Simulations: • Northern Benguela Current: Juvenile Hake MPA
WP5 Status Report: Science D5.2 Ecospace Simulations: • Northern Benguela Current: Juvenile Hake MPA
WP5 Status Report: Science D5.2 Ecospace Simulations: • Northern Benguela Current: Juvenile Hake MPA
WP5 Status Report: Science D5.2 Ecospace Simulations:
WP5 Status Report: Science D5.2 Ecospace Simulations: Conclusions • No consistent response from any of the indicators to the establishment of MPAs across all systems • MPAs are associated with many trade-offs • Fishery - Biodiversity • Biodiversity - Biodiversity • Fishery - Fishery • MPAs can lead to win-win situation, but also they can lead to lose-lose
WP5 Status Report: Science D5.3 Ecospace Simulations: Testing Objective Criteria for MPA Placement • Co-varying size and location: • Highest / lowest landings • Habitats • Random selection
WP5 Status Report: Science D5.3 Ecospace Simulations:
WP5 Status Report: Science D5.3 Ecospace Simulations: Bugged
WP5 Status Report: Science Northern Gulf of California:
WP5 Status Report: Science North Sea: 333% 518%
WP5 Status Report: MPA Tool MPA Design Tool:
WP5 Status Report: Outputs Publications:
WP5 Status Report: Outputs Other outputs: WP5 Members have given: • 6 oral presentations at the International symposium on MPAs, Murcia Spain. • 1 oral presentation at the 6th European Conference on Ecological Modelling, Trieste, Italy • 2 invited talks on at the workshop on “Biogeochemical processes and fish dynamics in food web models for end-to-end conceptualisation of marine ecosystems”, Trieste, Italy • 1 invited keynote talk at the “Towards a coherent network of MPAs” conference, Scarborough, UK. • invited to input to House of Commons policy briefing document, UK.
WP5 Status Report: Budget Budget Status: 28,942 Euros left to spend