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Grazing by Diadema antillarum (Philippi) upon algal communities on rocky substrates

2007Journal article Open access
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dc.contributor.authorAlves, Filipe
dc.contributor.authorChícharo, Luís
dc.contributor.authorSerrão, Ester
dc.contributor.authorAbreu, A. D.
dc.date.accessioned2014-10-15T13:37:01Z
dc.date.available2014-10-15T13:37:01Z
dc.date.issued2007
dc.date.updated2014-10-10T10:31:24Z
dc.description.abstractGrazing by Diadema antillarum sea urchins is well documented for coral reefs, although information is scarce for the eastern part of the Atlantic Ocean, where rocky substrate dominates the sea bottom. This study analysed grazing activity by D. antillarum upon the algal communities living on rock substrates, and its possible impact on the subtidal communities. Controlled feeding experiments using exclusion cages were performed between May and September 1998 at Madeira Island (NE Atlantic). Three experimental treatments were used: (1) closed cages to exclude sea urchins, (2) open cage controls, and (3) uncaged controls (nine replicates in each treatment). After four months, in September 1998, the percentage algal cover was quantified. One-way analysis of variance followed by Post Hoc Tukey (HSD) tests showed significant differences between algal abundance in the presence (uncaged and open cage controls) or absence (closed cages) of sea urchins. In the areas where D. antillarum was excluded (closed cages), algal abundance increased by about 10% in the four-month period. Diadema antillarum thus effectively reduces algal abundance, and this may have important consequences in determining the algal community structure of rocky substrate.por
dc.identifier.citationAlves, Filipe M.A.; Chícharo, Luis M.; Serrao, Ester; Abreu, António D. Depredación de comunidades de algas por el erizo <i>Diadema antillarum</i> (Philippi) en sustratos rocosos, Scientia Marina, 67, 3, 307-311, 2007.por
dc.identifier.issn1886-8134
dc.identifier.otherAUT: LCH00360; ESE00527
dc.identifier.urihttp://hdl.handle.net/10400.1/5328
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherConsejo Superior de Investigaciones Científicas (CSIC)por
dc.subjectDiadema antillarumpor
dc.subjectMadeira Islandpor
dc.subjectGrazingpor
dc.subjectRocky substratepor
dc.subjectMacroalgaepor
dc.titleGrazing by Diadema antillarum (Philippi) upon algal communities on rocky substratespor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceBarcelona, Espanhapor
oaire.citation.endPage311por
oaire.citation.issue3por
oaire.citation.startPage307por
oaire.citation.titleScientia Marinapor
oaire.citation.volume67por
person.familyNameAlves
person.familyNameChicharo
person.familyNameSerrao
person.givenNameFilipe
person.givenNameLuis
person.givenNameEster A.
person.identifier1069549
person.identifierC-6686-2012
person.identifier.ciencia-id1F1F-08D6-E54D
person.identifier.ciencia-id6716-EE1C-B995
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0003-3752-2745
person.identifier.orcid0000-0002-4933-2300
person.identifier.orcid0000-0003-1316-658X
person.identifier.scopus-author-id15748099500
person.identifier.scopus-author-id6602881426
person.identifier.scopus-author-id7004093604
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication9e5e82fc-b9b0-44d4-84d1-b101810a1985
relation.isAuthorOfPublicationd3ff8510-3be1-4a6a-abdd-eb671a819aef
relation.isAuthorOfPublication45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication.latestForDiscovery9e5e82fc-b9b0-44d4-84d1-b101810a1985

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