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Auteur Oppel, S.; Bolton, M.; Carneiro, A.P.B.; Dias, M.P.; Green, J.A.; Masello, J.F.; Phillips, R.A.; Owen, E.; Quillfeldt, P.; Beard, A.; Bertrand, S.; Blackburn, J.; Boersma, P.D.; Borges, A.; Broderick, A.C.; Catry, P.; Cleasby, I.; Clingham, E.; Creuwels, J.; Crofts, S.; Cuthbert, R.J.; Dallmeijer, H.; Davies, D.; Davies, R.; Dilley, B.J.; Dinis, H.A.; Dossa, J.; Dunn, M.J.; Efe, M.A.; Fayet, A.L.; Figueiredo, L.; Frederico, A.P.; Gjerdrum, C.; Godley, B.J.; Granadeiro, J.P.; Guilford, T.; Hamer, K.C.; Hazin, C.; Hedd, A.; Henry, L.; Hernández-Montero, M.; Hinke, J.; Kokubun, N.; Leat, E.; Tranquilla, L.M.F.; Metzger, B.; Militão, T.; Montrond, G.; Mullié, W.; Padget, O.; Pearmain, E.J.; Pollet, I.L.; Pütz, K.; Quintana, F.; Ratcliffe, N.; Ronconi, R.A.; Ryan, P.G.; Saldanha, S.; Shoji, A.; Sim, J.; Small, C.; Soanes, L.; Takahashi, A.; Trathan, P.; Trivelpiece, W.; Veen, J.; Wakefield, E.; Weber, N.; Weber, S.; Zango, L.; Daunt, F.; Ito, M.; Harris, M.P.; Newell, M.A.; Wanless, S.; González-Solís, J.; Croxall, J. url  doi
openurl 
  Titre Spatial scales of marine conservation management for breeding seabirds Type Article scientifique
  Année 2018 Publication (down) Revue Abrégée Marine Policy  
  Volume 98 Numéro Pages 37-46  
  Mots-Clés Foraging range; Marine protected area; Spatial aggregation; Telemetry; Tracking; Value of information  
  Résumé Knowing the spatial scales at which effective management can be implemented is fundamental for conservation planning. This is especially important for mobile species, which can be exposed to threats across large areas, but the space use requirements of different species can vary to an extent that might render some management approaches inefficient. Here the space use patterns of seabirds were examined to provide guidance on whether conservation management approaches should be tailored for taxonomic groups with different movement characteristics. Seabird tracking data were synthesised from 5419 adult breeding individuals of 52 species in ten families that were collected in the Atlantic Ocean basin between 1998 and 2017. Two key aspects of spatial distribution were quantified, namely how far seabirds ranged from their colony, and to what extent individuals from the same colony used the same areas at sea. There was evidence for substantial differences in patterns of space-use among the ten studied seabird families, indicating that several alternative conservation management approaches are needed. Several species exhibited large foraging ranges and little aggregation at sea, indicating that area-based conservation solutions would have to be extremely large to adequately protect such species. The results highlight that short-ranging and aggregating species such as cormorants, auks, some penguins, and gulls would benefit from conservation approaches at relatively small spatial scales during their breeding season. However, improved regulation of fisheries, bycatch, pollution and other threats over large spatial scales will be needed for wide-ranging and dispersed species such as albatrosses, petrels, storm petrels and frigatebirds.  
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  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2454  
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Auteur Spedicato, M.T.; Zupa, W.; Carbonara, P.; Fiorentino, F.; Follesa, M.C.; Galgani, F.; Garcia-Ruiz, C.; Jadaud, A.; Ioakeimidis, C.; Lazarakis, G.; Lembo, G.; Mandic, M.; Maiorano, P.; Sartini, M.; Serena, F.; Cau, A.; Esteban, A.; Isajlovic, I.; Micallef, R.; Thasitis, I. doi  openurl
  Titre Spatial distribution of marine macro-litter on the seafloor in the northern Mediterranean Sea: the MEDITS initiative Type Article scientifique
  Année 2019 Publication (down) Revue Abrégée Sci. Mar.  
  Volume 83 Numéro Pages 257-270  
  Mots-Clés abundance; accumulation; accumulation areas; adriatic sea; GAM modelling; general-circulation; habitats; impact; islands; marine macro-litter; Mediterranean Sea; medits; microplastics; plastic; plastic debris; transport  
  Résumé Marine litter is one of the main sources of anthropogenic pollution in the marine ecosystem, with plastic representing a global threat. This paper aims to assess the spatial distribution of plastic macro-litter on the seafloor, identifying accumulation hotspots at a northern Mediterranean scale. Density indices (items km(-2)) from the MEDITS trawl surveys (years 2013-2015) were modelled by generalized additive models using a Delta-type approach and several covariates: latitude, longitude, depth, seafloor slope, surface oceanographic currents and distances from main ports. To set thresholds for the identification of accumulation areas, the percentiles (85th, 90th and 95th) of the plastic spatial density distribution were computed on the raster data. In the northern Mediterranean marine macro-litter was widespread (90.13% of the 1279 surveyed stations), with plastic by far the most recurrent category. The prediction map of the plastic density highlighted accumulation areas (85th, 90th and 95th percentiles of the distribution, respectively, corresponding to 147, 196 and 316 items km(-2)) in the Gulf of Lions, eastern Corsica. the eastern Adriatic Sea, the Argo-Saronic region and waters around southern Cyprus. Maximum densities were predicted in correspondence to the shallower depths and in proximity to populated areas (distance from the ports). Surface currents and local water circulation with cyclonic and anticyclonic eddies were identified as drivers likely facilitating the sinking to the bottoms of floating debris  
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  ISSN 0214-8358 ISBN Médium  
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  Notes WOS:000504829900019 Approuvé pas de  
  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2712  
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Auteur Le Gouvello, R.; Hochart, L.-E.; Laffoley, D.; Simard, F.; Andrade, C.; Angel, D.; Callier, M.; De Monbrison, D.; Fezzardi, D.; Haroun, R.; Harris, A.; Hughes, A.; Massa, F.; Roque d'Orbcastel, E.; Soto, D.; Stead, S.; Marino, G. url  doi
openurl 
  Titre Aquaculture and marine protected areas: Potential opportunities and synergies Type Article scientifique
  Année 2017 Publication (down) Revue Abrégée Aquatic Conserv: Mar. Freshw. Ecosyst.  
  Volume 27 Numéro Pages 138-150  
  Mots-Clés Aquaculture; Ecosystem approach; Environmental impact assessment; Littoral; marine protected area; ocean, sublittoral  
  Résumé * To meet the Convention on Biological Diversity's Aichi Target 11 on marine biodiversity protection and Aichi Target 6 on sustainable fisheries by 2020, as well as the Sustainable Development Goal (SDG) 2 on food security and SDG 14 on oceans by 2030, there is an urgent need to rethink how best to reconcile nature conservation and sustainable development. * This paper argues for effective governance to support processes that apply principles of sustainable development and an ecosystem approach to decide about economic activities at sea such as aquaculture. It describes opportunities, benefits and synergies between aquaculture and MPAs as a basis for wider debate. The scope is not a comprehensive analysis of aquaculture and MPAs, but rather to present examples of positive interactions between aquaculture activities and MPAs. The unintended negative consequences are also discussed to present balanced arguments. * This work draws from four workshops held in 2015 and 2016 and used to collect information from about 100 experts representing various sectors and perspectives. * It is recognized that aquaculture is an important activity in terms of sustainable development. It can play a role in providing food security, poverty alleviation and economic resilience, in particular for MPA local communities, and contribute to wild stock enhancement, as an alternative to overfishing and for providing services to the ecosystem. * This study showed that there is a need from both aquaculture and MPA sides for clarity of objectives and willingness for open and extensive dialogue. The paper concludes by describing a number of tools and methods for supporting greater synergies between aquaculture and MPAs. * The results from this work have already helped to build a common understanding between conservation and aquaculture and initiate a rapprochement for increasing synergies.  
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  Volume de collection Numéro de collection Edition  
  ISSN 1099-0755 ISBN Médium  
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  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2201  
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Auteur Bryndum‐Buchholz, A.; Tittensor, D.P.; Blanchard, J.L.; Cheung, W.W.L.; Coll, M.; Galbraith, E.D.; Jennings, S.; Maury, O.; Lotze, H.K. url  doi
openurl 
  Titre Twenty-first-century climate change impacts on marine animal biomass and ecosystem structure across ocean basins Type Article scientifique
  Année 2019 Publication (down) Revue Abrégée Global Change Biology  
  Volume 25 Numéro 2 Pages 459-472  
  Mots-Clés climate change; ensemble modeling; future projection; marine animal biomass; marine ecosystem models; model intercomparison; ocean basins; uncertainty  
  Résumé Climate change effects on marine ecosystems include impacts on primary production, ocean temperature, species distributions, and abundance at local to global scales. These changes will significantly alter marine ecosystem structure and function with associated socio-economic impacts on ecosystem services, marine fisheries, and fishery-dependent societies. Yet how these changes may play out among ocean basins over the 21st century remains unclear, with most projections coming from single ecosystem models that do not adequately capture the range of model uncertainty. We address this by using six marine ecosystem models within the Fisheries and Marine Ecosystem Model Intercomparison Project (Fish-MIP) to analyze responses of marine animal biomass in all major ocean basins to contrasting climate change scenarios. Under a high emissions scenario (RCP8.5), total marine animal biomass declined by an ensemble mean of 15%–30% (±12%–17%) in the North and South Atlantic and Pacific, and the Indian Ocean by 2100, whereas polar ocean basins experienced a 20%–80% (±35%–200%) increase. Uncertainty and model disagreement were greatest in the Arctic and smallest in the South Pacific Ocean. Projected changes were reduced under a low (RCP2.6) emissions scenario. Under RCP2.6 and RCP8.5, biomass projections were highly correlated with changes in net primary production and negatively correlated with projected sea surface temperature increases across all ocean basins except the polar oceans. Ecosystem structure was projected to shift as animal biomass concentrated in different size-classes across ocean basins and emissions scenarios. We highlight that climate change mitigation measures could moderate the impacts on marine animal biomass by reducing biomass declines in the Pacific, Atlantic, and Indian Ocean basins. The range of individual model projections emphasizes the importance of using an ensemble approach in assessing uncertainty of future change.  
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  Langue en Langue du Résumé Titre Original  
  Éditeur de collection Titre de collection Titre de collection Abrégé  
  Volume de collection Numéro de collection Edition  
  ISSN 1365-2486 ISBN Médium  
  Région Expédition Conférence  
  Notes Approuvé pas de  
  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2457  
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Auteur Ben-Gharbia, H.; Yahia, O.K.-D.; Amzil, Z.; Chomerat, N.; Abadie, E.; Masseret, E.; Sibat, M.; Triki, H.Z.; Nouri, H.; Laabir, M. doi  openurl
  Titre Toxicity and Growth Assessments of Three Thermophilic Benthic Dinoflagellates (Ostreopsis cf. ovata, Prorocentrum lima and Coolia monotis) Developing in the Southern Mediterranean Basin Type Article scientifique
  Année 2016 Publication (down) Revue Abrégée Toxins  
  Volume 8 Numéro 10 Pages 297  
  Mots-Clés coastal waters; Coolia monotis; environmental-factors; growth; gulf-of-california; harmful algal blooms; marine dinoflagellate; multiple sequence alignment; new-zealand; okadaic acid; Ostreopsis cf. ovata; Prorocentrum lima; Southern Mediterranean Sea; sp-nov dinophyceae; toxicity; toxin profile  
  Résumé Harmful benthic dinoflagellates, usually developing in tropical areas, are expanding to temperate ecosystems facing water warming. Reports on harmful benthic species are particularly scarce in the Southern Mediterranean Sea. For the first time, three thermophilic benthic dinoflagellates (Ostreopsis cf. ovata, Prorocentrum lima and Coolia monotis) were isolated from Bizerte Bay (Tunisia, Mediterranean) and monoclonal cultures established. The ribotyping confirmed the morphological identification of the three species. Maximum growth rates were 0.59 +/- 0.08 d(-1) for O. cf. ovata, 0.35 +/- 0.01 d(-1) for C. monotis and 0.33 +/- 0.04 d(-1) for P. lima. Toxin analyses revealed the presence of ovatoxin-a and ovatoxin-b in O. cf. ovata cells. Okadaic acid and dinophysistoxin-1 were detected in P. lima cultures. For C. monotis, a chromatographic peak at 5.6 min with a mass m/z = 1061.768 was observed, but did not correspond to a mono-sulfated analogue of the yessotoxin. A comparison of the toxicity and growth characteristics of these dinoflagellates, distributed worldwide, is proposed.  
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  Langue English Langue du Résumé Titre Original  
  Éditeur de collection Titre de collection Titre de collection Abrégé  
  Volume de collection Numéro de collection Edition  
  ISSN 2072-6651 ISBN Médium  
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  Numéro d'Appel MARBEC @ alain.herve @ collection 1690  
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