English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/79234
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

DC FieldValueLanguage
dc.contributor.authorBensoussan, Nathaniel-
dc.contributor.authorRomano, J. C.-
dc.contributor.authorHarmelin, J. G.-
dc.contributor.authorGarrabou, Joaquim-
dc.identifierdoi: 10.1016/j.ecss.2010.01.008-
dc.identifierissn: 0272-7714-
dc.identifiere-issn: 1096-0015-
dc.identifier.citationEstuarine, Coastal and Shelf Science 87(3): 431-441 (2010)-
dc.description11 pages, 8 figures, 3 tables-
dc.description.abstractIn the North West Mediterranean (NWM), mass mortality events (MME) of long-lived benthic species that have occurred over the last two decades have been related to regional warming trend. Gaining robust data sets on thermal regimes is critical to assess conditions to which species have adapted, detect extreme events and critically evaluate biological impacts. High resolution temperature (T) time series obtained during 1999-2006 from 5 to 40 m depth at four contrasted sites of the NWM were analyzed: Area Marina Protegida de les Illes Medes (NE Spain), Riou (Marseilles, France), Parc National de Port-Cros (France), and Réserve Naturelle de Scandola (Corsica, France). The seasonal pattern showed winter T around 11-13 °C, and summer T mainly around 22-24 °C near surface to 18-20 °C at depth. Stratification dynamics showed recurrent downwellings (>40 m) at Medes, frequent observation (1/3rd of the summer) of deep and cold upwelled waters at Riou, while Scandola exhibited stable summer stratification and highest suprathermoclinal T. Port-Cros showed an intermediate regime that oscillated between Riou and Scandola depending on the occurrence of northern winds. Data distribution study permitted to identify and to characterize 3 large scale positive anomalies concomitant with the mass mortality outbreaks of summers 1999, 2003 and 2006. The analysis of biological surveys on gorgonian populations showed significant impacts during the 3 years with temperature anomalies. Besides the degree of impact showed inter-annual differences which could be related to different T conditions concomitant to mortality events, from slight increase in T extreme of only 1-2 °C over short duration, to lengthened more classical summer conditions. Our results therefore support the hypothesis that shallow NWM populations of long-lived benthic species are living near their upper thermal thresholds. Given actual trends and projections in NWM, the repetition of new MMEs in the next decades is extremely likely. In such context, the acquisition of dedicated high resolution T series proves to be crucial for increasing our detection, understanding and forecasting abilities-
dc.description.sponsorshipThis research was funded by the Parc National de Port-Cros, the IFB Foundation (Institut Français de la Biodiversité), the environmental department of the TOTAL-Fina-Elf group, an “Action Concertée Incitative” (ACI) program “Jeunes chercheurs 2003” (number JC5360) from the French Research Ministry, and the MEDCHANGE project funded by the “Agence Nationale pour la Recherche” (ANR)-
dc.publisherAcademic Press-
dc.subjectEffects of climate change-
dc.subjectCoastal oceanography-
dc.subjectThermal structure-
dc.subjectThermal regime-
dc.subjectMortality outbreak-
dc.subjectPositive temperature anomalies-
dc.subjectGulf of Lions-
dc.titleHigh resolution characterization of northwest Mediterranean coastal waters thermal regimes: To better understand responses of benthic communities to climate change-
dc.description.versionPeer Reviewed-
Appears in Collections:(ICM) Artículos
Files in This Item:
There are no files associated with this item.
Show simple item record

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.