Designing a network of marine reserves in the Mediterranean Sea with limited socio-economic data |
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| Authors: | Sylvaine Giakoumi Hedley S Grantham Giorgos D Kokkoris Hugh P Possingham |
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| Institution: | aThe Ecology Centre, School of Biology, University of Queensland, St. Lucia, Queensland 4072, Australia;bDepartment of Marine Sciences, University of the Aegean, University Hill, Mytilene, Lesvos Island 81100, Greece |
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| Abstract: | The present study is the first to determine priorities for the location of marine reserves using spatial prioritization software in the eastern Mediterranean Sea. We used biophysical data from visual census surveys on: fish species abundance, presence of various habitat types, and percent coverage of seagrasses and canopy algae. Efficient conservation planning requires spatially explicit information on how proposed management will affect stakeholders, which in this region was very limited. We created novel socio-economic cost indices to account for fisheries and tourists. Our fishing metrics were based on fisher behaviour including information on the location of ports and areas often inaccessible to fishers due to high wind exposure. We developed a cost index for tourism based on the availability of beds for tourists. We examined how the spatial priorities for marine reserves varied using different combinations of these socio-economic cost metrics. We found about 17% of sites were a high priority regardless of which cost metric was used. We also compared, for the first time in the Mediterranean, our results devised using systematic conservation planning approaches with priorities developed by two non-systematic methods, the Natura 2000 proposed marine reserves and sites that local fishers proposed for protection. Only a few sites identified by our approach were the same as those recommended as part of Natura 2000 or the fishers’ proposals. This suggests that much more work is needed to harmonise existing proposals with the principles of efficient systematic conservation planning. |
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| Keywords: | Biodiversity Conservation planning Marine reserves Mediterranean Sea Socio-economic Wind exposure |
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