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Distribution of living benthic foraminifera on the northern Gulf of Cadiz continental shelf

2012Journal article Restricted access
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dc.contributor.authorMendes, Isabel
dc.contributor.authorDias, J. A.
dc.contributor.authorSchonfeld, J.
dc.contributor.authorFerreira, Óscar
dc.date.accessioned2017-11-21T20:06:12Z
dc.date.available2017-11-21T20:06:12Z
dc.date.issued2012
dc.description.abstractLiving (stained) benthic foraminiferal faunas were analyzed in 51 surficial sediment samples taken from the northern Gulf of Cadiz continental shelf between the mouths of the Guadiana and Guadalquivir rivers. The distribution and abundance of 26 species with relative abundance .5% were related to water depth, sediment type, river discharge, water temperature, salinity, turbidity, and primary productivity. Hierarchical classification using R- and Q-mode cluster analyses, and individual distributions, allowed these taxa to be categorized into four general groups. Group 1 is represented by Bolivina ordinaria and Hopkinsina atlantica. These species are linked to river discharge, and are associated with muddy sediments. They are considered the most opportunistic species in the assemblage, and are associated with the limits of productivity. Group 2, contains Ammonia beccarii, Eggerelloides scaber, Elphidium gerthi, Quinqueloculina laevigata, and Q. stelligera, and is characteristic of shallow water depths. Its species are associated with different sediment types and their distribution is influenced by river discharge. Group 3 is dominated by Bulimina aculeata, B. elongata, Elphidium excavatum, E. cuvillieri, Epistominella vitrea, and Rectuvigerina phlegeri. These species display the highest abundances between 30–100 m water depths. They prevail in muds associated with weak hydrodynamics, low oxygenation, and high organic matter. Group 4 includes species that are more abundant in deep stations and is divided into two subgroups. Subgroup 4A includes Bolivina catanensis, B. italica, B. striatula, Cassidulina laevigata, Stainforthia sp., Nouria polymorphinoides, and Nouria sp., with higher abundances in one or two samples. Subgroup 4B, with Brizalina dilatata, B. spathulata, Bulimina marginata, Nonionella iridea, N. stella, and N. turgida, has patchy distribution. Higher abundances of Nonionella species off the Guadiana River are related to low temperature and salinity.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMendes, I., Dias, J.A., Schönfeld, J., Ferreira, Ó., 2012. Distribution of living benthic foraminifera on the Northern Gulf of Cadiz continental shelf. Journal of Foraminiferal Research, 42(1), 18-38.pt_PT
dc.identifier.doihttps://doi.org/10.2113/gsjfr.42.1.18pt_PT
dc.identifier.issn0096-1191
dc.identifier.otherAUT: OFE00989;
dc.identifier.urihttp://hdl.handle.net/10400.1/10200
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherCushman Foundation for Foraminiferal Researchpt_PT
dc.relationSIRIA (Situação de Referência da Região Costeira Algarvia Influenciável pela Barragem do Alqueva, Ministério da Defesa/FUP)pt_PT
dc.relationClimate changes from isotopic records during the Holocene in South-western Iberia (CIRCO)
dc.relationImpact of climatic and anthopic variations on the Northern continental shelf, Gulf of Cadiz
dc.relation.publisherversionhttps://pubs.geoscienceworld.org/cushmanfoundation/jfr/article-abstract/42/1/18/77265/distribution-of-living-benthic-foraminifera-on-the?redirectedFrom=fulltextpt_PT
dc.subjectBenthic Foraminiferapt_PT
dc.subjectEcologypt_PT
dc.subjectContinental shelfpt_PT
dc.subjectEnvironmental indicatorspt_PT
dc.titleDistribution of living benthic foraminifera on the northern Gulf of Cadiz continental shelfpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleClimate changes from isotopic records during the Holocene in South-western Iberia (CIRCO)
oaire.awardTitleImpact of climatic and anthopic variations on the Northern continental shelf, Gulf of Cadiz
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FCLI%2F66393%2F2006/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCI%2FCLI%2F60192%2F2004/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F18342%2F2004/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F72869%2F2010/PT
oaire.citation.endPage38pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage18pt_PT
oaire.citation.volume42pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStreamPOCI
oaire.fundingStreamSFRH
oaire.fundingStreamSFRH
person.familyNameMendes
person.familyNameFerreira
person.givenNameIsabel Maria de Paiva Pinto
person.givenNameÓscar
person.identifier.ciencia-id5C15-242C-FDC0
person.identifier.ciencia-id1F1C-DF44-94C9
person.identifier.orcid0000-0001-7004-7910
person.identifier.orcid0000-0001-9975-0036
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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