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Beach morphodynamic impact on a macrobenthic community along a subtidal depth gradient

2007Journal article Open access
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dc.contributor.authorDolbeth, M.
dc.contributor.authorFerreira, Oscar
dc.contributor.authorTeixeira, H.
dc.contributor.authorMarques, J. C.
dc.contributor.authorDias, J.A.
dc.contributor.authorPardal, M. A.
dc.date.accessioned2018-12-07T14:58:37Z
dc.date.available2018-12-07T14:58:37Z
dc.date.issued2007
dc.description.abstractThe subtidal macrobenthic community of a temperate beach in southern Portugal was studied along a depth gradient (1.3 to 32 m deep), which was long enough to comprise both highly hydrodynamic and calmer areas, to assess the influence of the spatial and temporal differences in hydrodynamic impact at the seafloor on the organization of a macrobenthic community. These differences were assessed by studying the variations in wave climate, depth of closure and extension of the mixed profile. A spatial zonation was detected from highly hydrodynamic shallow depths, 7.2 m deep shorewards, to the calmer deeper areas, from 8.4 m seawards. Accordingly, in the shallowest depths, species richness and densities were lower, with the inhabiting species, mainly crustaceans and surf clams, adapted to the environmental severity. Both species richness and densities increased along the depth gradient, and the community became dominated by polychaetes, nematodes and nemerteans. Seawards, within the relict sediments (deeper than 25 m), species richness and abundance decreased again. The community patterns also changed in response to the occurrence of strongly hydrodynamic episodes (such as storms), which had a higher impact than the seasonality. It was concluded that harsh physical environmental conditions reduce species richness, both spatially and temporally. With respect to density, other parameters related to life cycle characteristics, recruitment success and biotic interactions may also have some impact.
dc.identifier.doi10.3354/meps07040
dc.identifier.issn0171-8630
dc.identifier.urihttp://hdl.handle.net/10400.1/12120
dc.language.isoeng
dc.peerreviewedyes
dc.publisherInter-Research
dc.relationCross-Shore Processes on Contrasting Environments - CROP
dc.subjectIntermediate sandy beaches
dc.subjectMacrofauna communities
dc.subjectNorthern Spain
dc.subjectClam dredge
dc.subjectSurf zone
dc.subjectCoast
dc.subjectPatterns
dc.subjectMacroinfauna
dc.subjectBiodiversity
dc.subjectSediments
dc.titleBeach morphodynamic impact on a macrobenthic community along a subtidal depth gradient
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCross-Shore Processes on Contrasting Environments - CROP
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCTI%2FMAR%2F15265%2F1999/PT
oaire.citation.endPage124
oaire.citation.startPage113
oaire.citation.titleMarine Ecology Progress Series
oaire.citation.volume352
oaire.fundingStreamPOCI
person.familyNameFerreira
person.givenNameÓscar
person.identifier.ciencia-id1F1C-DF44-94C9
person.identifier.orcid0000-0001-9975-0036
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublication14adf536-4f81-42de-b00f-6d1cf3b0d75e
relation.isAuthorOfPublication.latestForDiscovery14adf536-4f81-42de-b00f-6d1cf3b0d75e
relation.isProjectOfPublication7d2e859d-84c9-4504-bcb2-a436146d1b2e
relation.isProjectOfPublication.latestForDiscovery7d2e859d-84c9-4504-bcb2-a436146d1b2e

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