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The influence of submarine groundwater discharges on subtidal meiofauna assemblages in south Portugal (Algarve)

2013-09-20Journal article Restricted access
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dc.contributor.authorEncarnação, João
dc.contributor.authorMiguel de Sousa Leitão, Francisco
dc.contributor.authorRange, Pedro
dc.contributor.authorPiló, David
dc.contributor.authorTeodosio, Maria
dc.contributor.authorChícharo, Luís
dc.date.accessioned2014-09-19T11:11:37Z
dc.date.available2014-09-19T11:11:37Z
dc.date.issued2013-09-20
dc.date.updated2014-09-19T10:21:32Z
dc.description.abstractSubmarine groundwater discharges (SGD) have been documented as contributing to the biological productivity of coastal areas, through a bottom-up support to higher trophic levels. Nevertheless, the effects on the bottom levels of the coastal food web, namely the meiofauna, are still very poorly known. The “Olhos de Água” beach is the only area on the South coast of Portugal where submarine freshwater seepages have been identified. In this study, meiofauna assemblages in the area impacted by SGD were compared with the meiofauna from a similar area, but without SGD. Samples were taken in Spring and Summer 2011, under different hydrological regimes, aquifer recharge (after Winter) and dryness (after Spring), respectively. The major changes in the community were recorded at a seasonal level, with higher abundances and number of taxa in Spring, when compared to Summer. This may be explained by better sediment aeration during spring along with higher food availability from the sedimentation of spring phytoplankton blooms. Although no significant differences were detected by multivariate analysis on the meiofauna abundances between Control and Impact areas, pair-wise tests on the interactions between factors in number of taxa (S) and species richness (Margalef's d) suggested that the discharge of groundwater stimulated an increase in meiofauna diversity. Such effect can be observed between the meiofauna assemblages from impacted and control areas and also between periods with different discharge regimes (Spring and Summer) in the impacted area. These findings highlight the role that freshwater discharges from coastal aquifers have on meiofauna assemblages and suggest that SGD contribute to enhance the transfer of energy from the lower levels of the trophic web to upper levels.por
dc.identifier.citationEncarnação, João; Leitão, Francisco; Range, Pedro; Piló, David; Chícharo, M. Alexandra; Chícharo, Luís. The influence of submarine groundwater discharges on subtidal meiofauna assemblages in south Portugal (Algarve), Estuarine, Coastal and Shelf Science, 130, 202-208, 2013.por
dc.identifier.doihttp://dx.doi.org/10.1016/j.ecss.2013.04.013
dc.identifier.issn0272-7714
dc.identifier.otherAUT: MCH00377; LCH00360
dc.identifier.urihttp://hdl.handle.net/10400.1/5007
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0272771413001996por
dc.subjectSubmarine groundwater dischargepor
dc.subjectSeasonal benthic variabilitypor
dc.subjectPortugal coastpor
dc.subjectSandy benthic meiofaunapor
dc.subjectCoastal productivitypor
dc.subjectDiversity increasepor
dc.titleThe influence of submarine groundwater discharges on subtidal meiofauna assemblages in south Portugal (Algarve)por
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage208por
oaire.citation.issue130por
oaire.citation.startPage202por
oaire.citation.titleEstuarine, Coastal and Shelf Sciencepor
person.familyNameLeitão
person.familyNameRange
person.familyNamePiló
person.familyNameTeodosio
person.familyNameChicharo
person.givenNameFrancisco
person.givenNamePedro
person.givenNameDavid
person.givenNameMaria
person.givenNameLuis
person.identifier620214
person.identifier.ciencia-id3E1C-DBC2-42D5
person.identifier.ciencia-id291E-1F70-F443
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.ciencia-id6716-EE1C-B995
person.identifier.orcid0000-0003-4983-9782
person.identifier.orcid0000-0002-9269-2416
person.identifier.orcid0000-0002-1810-7135
person.identifier.orcid0000-0002-0939-9885
person.identifier.orcid0000-0002-4933-2300
person.identifier.ridM-3980-2013
person.identifier.ridC-5558-2008
person.identifier.ridB-5077-2013
person.identifier.scopus-author-id7003991946
person.identifier.scopus-author-id57200299298
person.identifier.scopus-author-id36052051100
person.identifier.scopus-author-id56196396700
person.identifier.scopus-author-id6602881426
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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