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Spatial and temporal patterns of occurrence of three alien hydromedusae, Blackfordia virginica (Mayer, 1910), Nemopsis bachei (Agassiz, 1849) and Maeotias marginata (Modeer, 1791), in the Gironde Estuary (France)

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorNOWACZYK, Antoine
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorDAVID, Valerie
hal.structure.identifierEcosystèmes aquatiques et changements globaux [UR EABX]
dc.contributor.authorLEPAGE, Mario
hal.structure.identifierLaboratoire National d’Hydraulique et Environnement [EDF R&D LNHE]
dc.contributor.authorGOARANT, A.
hal.structure.identifierLaboratoire National d’Hydraulique et Environnement [EDF R&D LNHE]
dc.contributor.authorDE OLIVEIRA, E.
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSAUTOUR, Benoit
dc.date.accessioned2024-10-01T12:13:12Z
dc.date.available2024-10-01T12:13:12Z
dc.date.issued2016
dc.identifier.issn1798-6540en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/202092
dc.description.abstractEnThe species composition and seasonal abundance patterns of gelatinous zooplankton are poorly known for many European coastal-zone waters. The seasonal abundance and distribution of the dominant species of hydromedusae along a salinity gradient within the Gironde Estuary, Atlantic coast of France, were evaluated based on monthly surveys, June 2013 to April 2014. The results confirmed the presence of three species considered to be introduced in many coastal ecosystems around the world: Nemopsis bachei (Agassiz, 1849), Blackfordia virginica (Mayer, 1910), and Maeotias marginata (Modeer, 1791). These species were found at salinities ranging from 0 to 22.9 and temperatures ranging from 14.5 to 26.6 ºC, demonstrating their tolerance to a wide range of estuarine environmental conditions. There was a clear succession of the three species that was influenced by temperature and salinity. Blackfordia virginica was the dominant hydromedusae during the warmest months and occurred at very high abundance (up to 634 individuals.m-3 corresponding to 21.40 g.m-3 as wet weight). The seasonal evolution of the size distribution indicated an extended period of release of medusae by hydroid polyps, and rapid growth, covering the whole period of occurrence for B. virginica. Nemopsis bachei also was present during the warmer months but only locally common. In contrast, Maeotias marginata only occurred in low numbers during autumn and had not been previously detected in the Gironde Estuary. Non-native jellyfishes clearly represent a prominent component of the Gironde Estuary, and additional work is needed to understand the potential impacts on the structure and functioning of entire zooplankton community.
dc.language.isoENen_US
dc.subjectRépartion géographique
dc.subjectBiomasse
dc.subjectIntroduction d'espèce
dc.subjectEstuaire
dc.subjectZooplancton
dc.subjectTurbidité
dc.subjectIntroduced species
dc.subjectEstuaries
dc.subjectZooplankton
dc.subjectGeographical distribution
dc.subjectTurbidity
dc.subjectBiomass
dc.title.enSpatial and temporal patterns of occurrence of three alien hydromedusae, Blackfordia virginica (Mayer, 1910), Nemopsis bachei (Agassiz, 1849) and Maeotias marginata (Modeer, 1791), in the Gironde Estuary (France)
dc.typeArticle de revueen_US
dc.identifier.doi10.3391/ai.2016.11.4.05en_US
dc.subject.halSciences de l'environnement/Biodiversité et Ecologieen_US
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnementen_US
bordeaux.journalAquatic Invasionsen_US
bordeaux.page397-409en_US
bordeaux.volume11en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue4en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamECOBIOCen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-01400187
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Aquatic%20Invasions&rft.date=2016&rft.volume=11&rft.issue=4&rft.spage=397-409&rft.epage=397-409&rft.eissn=1798-6540&rft.issn=1798-6540&rft.au=NOWACZYK,%20Antoine&DAVID,%20Valerie&LEPAGE,%20Mario&GOARANT,%20A.&DE%20OLIVEIRA,%20E.&rft.genre=article


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