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- Turning the tide on protection illusions: The underprotected MPAs of the ‘OSPAR Regional Sea Convention’Publication . Roessger, Julia; Claudet, Joachim; Horta E Costa, BarbaraContracting Parties of the Convention for the Protection of the Marine Environment of the North-East Atlantic (the 'OSPAR Convention') have agreed to establish an effective network of marine protected areas (MPAs). While the network is currently covering approximately 7% of the North-East Atlantic, the extent to which existing MPAs appropriately harbour protection remains unknown. Using the regulation-based classification system, we assessed the levels of protection of 946 zones belonging to 476 strictly marine OSPAR MPAs. We show that only 0.03% of the OSPAR MPA network is covered with full or high protection levels, which are the protection levels exhibiting significant conservation benefits. According to this study, more than 60% of MPAs are unprotected, leading to uncertainties about their potential to deliver positive conservation outcomes. MPA coverage alone should not be used as an indicator for MPA performance, but when presented with the actual protection levels, a light can be shed on MPA quality. To be able to reach the 2030 ocean targets agreed under the European Biodiversity Strategy, to which most OSPAR Contracting Parties are committed, substantial efforts are required not only to strategically enlarge the MPA network coverage to 30% but mostly to reach the EU sub-target of 10% of strict protection. Enhancing effective protection by increasing the coverage of fully and highly protected areas to safeguard marine ecosystems is urgently needed to sustainably support human well-being.
- Among-individual variation in white seabream (Diplodus sargus) spatial behaviour and protection in a coastal no-take areaPublication . De Benito Abelló, Carmela; Bentes, Luis; Sousa, Inês; Pedaccini, Marie; Villegas-Ríos, David; Olsen, Esben Moland; Gonçalves, Jorge Manuel Santos; Horta E Costa, BarbaraMarine protected areas (MPAs), and specially no-take areas (NTAs), play an important role in protecting target populations from fisheries. When developing spatial conservation and management tools, the design has mainly focused on population-level measures of fish home ranges, spawning and feeding areas, and migration routes. Intraspecific differences in fish behaviour, however, are often not accounted for, even though they could influence the level of realized protection. In this study, we investigated the intraspecific variation in spatial behaviour of a harvested fish, Diplodus sargus, and how it impacts the degree of protection granted by a NTA in the south of Portugal. We identified four behavioural types according to their spatial behaviour: residents, commuters, seasonal visitors, and single users. Time at risk (i.e. outside the NTA) greatly varied among the four groups, but also over the year for the seasonal and the single users. Our study shows how acoustic telemetry can assist spatial conservation and fisheries management and provides novel insight regarding the role of individual variation in behaviour to understand protection granted by MPAs to harvested species. It also suggests that incorporating such information into all stages of MPA design and implementation can result in increased resilience of the protected populations.
- Marine protected areas promote stability of reef fish communities under climate warmingPublication . Benedetti-Cecchi, Lisandro; Bates, Amanda E.; Strona, Giovanni; Bulleri, Fabio; Horta E Costa, Barbara; Edgar, Graham J.; Hereu, Bernat; Reed, Dan C.; Stuart-Smith, Rick D.; Barrett, Neville S.; Kushner, David J.; Emslie, Michael J.; García-Charton, Jose Antonio; Gonçalves, Emanuel J.; Aspillaga, EnekoProtection from direct human impacts can safeguard marine life, yet ocean warming crosses marine protected area boundaries. Here, we test whether protection offers resilience to marine heatwaves from local to network scales. We examine 71,269 timeseries of population abundances for 2269 reef fish species surveyed in 357 protected versus 747 open sites worldwide. We quantify the stability of reef fish abundance from populations to metacommunities, considering responses of species and functional diversity including thermal affinity of different trophic groups. Overall, protection mitigates adverse effects of marine heatwaves on fish abundance, community stability, asynchronous fluctuations and functional richness. We find that local stability is positively related to distance from centers of high human density only in protected areas. We provide evidence that networks of protected areas have persistent reef fish communities in warming oceans by maintaining large populations and promoting stability at different levels of biological organization. Protected areas are meant to defend species from direct exploitation and habitat loss, but they might also reduce climate change impacts. Here, the authors show that marine protected areas mitigate the impacts of marine heatwaves on reef fish communities.
- Regulations of activities and protection levels in marine protected areas of the European Union: a dataset compiled from multiple data sourcesPublication . Aminian Biquet, Juliette; Colegrove, Claire; Driedger, Alex; Raudsepp, Nicole; Sletten, Jennifer; Vincent, Timothé; Zetterlind, Virgil; Roessger, Julia; Laznya, Anastasiya; Vaidianu, Natașa; Claudet, Joachim; Young, Juliette; Horta e Costa, BarbaraThe dataset gathers available regulations of human activities and protection levels of Marine Protected Areas (MPAs) of the European Union (EU). The MPA list and polygons were extracted from the MPA database of the European Environment Agency (EEA) and completed with available zoning systems (all were filtered for their marine area reported under the Marine Strategy Framework Directive). Fully-overlapping MPAs were merged. In the resulting dataset, MPA features are provided (gathered from EEA, WDPA, ProtectedSeas), including the year of designation, designation types (e.g., national, Natura 2000) and subtypes (e.g., reserves, national parks), database identifiers (WDPA, Natura 2000, OSPAR, etc.), IUCN categories, and main protection focus. We provide summarized data on maritime activities that overlap with MPA polygons from two types of datasets: activities-focused datasets (national marine spatial plans, and additional European and regional databases, like EMODnet) and MPA-focused datasets gathering data from management plans (ProtectedSeas, expert-based assessments about OSPAR and Portuguese MPAs). This dataset therefore compiles data that could be gathered from accessible legal frameworks regarding aquaculture, fisheries, anchoring, infrastructures (including harbors and renewable energy), mining, transport, coastal land-based uses (desalinization, sewage plants) and other non-extractive uses (e.g., recreational), making them readily accessible. Using the MPA Guide classification system, we computed two scenarios of potential impact for each activity, which were used to assess two scenarios of protection levels per MPA. Some MPAs could not be associated with any MPA features, regulations, or protection levels. Finally, we detail the protocol to match information from multiple databases (e.g., with MPA polygons formatted differently) and provide a quality check by comparing this dataset to previous assessments. This dataset was used to analyze MPAs' protection levels across countries, regions and MPA features (e.g., IUCN categories, designations). It was also used to investigate the sources of information available and the levels of regulations for each maritime activity in EU MPAs. This dataset can therefore be used for further analyses on the use of EU MPAS to regulate activities and to compare with future assessments or with additional data we did not have access to (e.g., gathered at national scale). Such research is crucial to plan and monitor the implementation of the EU 2030 Biodiversity Strategy, targeting 10% of strictly protected MPAs in each sea region.