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Abundance, seasonal patterns and diet of the non-native jellyfish Blackfordia virginica in a Portuguese estuary

2015Journal article Restricted access
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dc.contributor.authorMarques, Filipa
dc.contributor.authorChainho, Paula
dc.contributor.authorCosta, José Lino
dc.contributor.authorDomingos, Isabel
dc.contributor.authorAngélico, M.M.
dc.date.accessioned2020-01-19T14:03:03Z
dc.date.available2020-01-19T14:03:03Z
dc.date.issued2015
dc.description.abstractBlackfordia virginica, a non-indigenous hydrozoan introduced in many systems around the world, has been observed in the Mira estuary, southwest of Portugal, since 1984. Monthly sampling (January 2013–January 2014) at a fixed location with high abundance of the medusae confirmed the occurrence of a seasonal cycle associated with temperature and photoperiod. The beginning of the medusa cycle occurred in May immediately after the spring zooplankton bloom during April. Examination of the gut contents of B. virginica medusae revealed that copepods, the most abundant group in the zooplankton community, were highly predated. Barnacle nauplii, decapod crustacean larvae and anchovy eggs were also identified in the guts. The medusae showed positive selection for copepods, and negative selection for barnacle nauplii, decapod crustacean larvae and anchovy eggs. The mortality rate of copepods (used as a model prey group) induced by medusae predation was estimated and showed the potential impact of this species in the ecosystem, ranging between 2.34 d−1 and 0.02 d−1, with a minimum copepod half-life of 0.30 days.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.ecss.2015.07.024pt_PT
dc.identifier.issn0272-7714
dc.identifier.urihttp://hdl.handle.net/10451/41014
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectAlien speciespt_PT
dc.subjectHydrozoapt_PT
dc.subjectJellyfish bloomspt_PT
dc.subjectMira estuarypt_PT
dc.subjectPredation impactpt_PT
dc.subjectTrophic ecologypt_PT
dc.titleAbundance, seasonal patterns and diet of the non-native jellyfish Blackfordia virginica in a Portuguese estuarypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage219pt_PT
oaire.citation.startPage212pt_PT
oaire.citation.titleEstuarine, Coastal and Shelf Sciencept_PT
oaire.citation.volume167pt_PT
person.familyNameChainho de Oliveira
person.familyNameCosta
person.familyNameDomingos
person.givenNamePaula Maria
person.givenNameJosé Lino
person.givenNameIsabel
person.identifier.ciencia-id8417-2F86-DF11
person.identifier.ciencia-id7519-E986-8350
person.identifier.ciencia-id8C11-9F59-C341
person.identifier.orcid0000-0002-3539-9942
person.identifier.orcid0000-0002-3843-4635
person.identifier.orcid0000-0002-0795-5614
person.identifier.ridB-1737-2012
person.identifier.scopus-author-id7402461424
person.identifier.scopus-author-id15057563100
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication77050eda-da9e-4127-9f94-215d48048703
relation.isAuthorOfPublicationa70b601c-dcd7-4098-9ee2-73e1f2c722af
relation.isAuthorOfPublicationabb76ccb-74af-4b17-8118-84581496d801
relation.isAuthorOfPublication.latestForDiscoverya70b601c-dcd7-4098-9ee2-73e1f2c722af

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