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Acidification effects on biofouling communities: winners and losers

2015-05Journal article Open access
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dc.contributor.authorPeck, Lloyd S.
dc.contributor.authorClark, Melody S.
dc.contributor.authorPower, Deborah
dc.contributor.authorReis, Joao
dc.contributor.authorBatista, Frederico
dc.contributor.authorHarper, Elizabeth M.
dc.date.accessioned2018-12-07T14:53:49Z
dc.date.available2018-12-07T14:53:49Z
dc.date.issued2015-05
dc.description.abstractHow ocean acidification affects marine life is a major concern for science and society. However, its impacts on encrusting biofouling communities, that are both the initial colonizers of hard substrata and of great economic importance, are almost unknown. We showed that community composition changed significantly, from 92% spirorbids, 3% ascidians and 4% sponges initially to 47% spirorbids, 23% ascidians and 29% sponges after 100days in acidified conditions (pH 7.7). In low pH, numbers of the spirorbid Neodexiospira pseudocorrugata were reduced x5 compared to controls. The two ascidians present behaved differently with Aplidium sp. decreasing x10 in pH 7.7, whereas Molgula sp. numbers were x4 higher in low pH than controls. Calcareous sponge (Leucosolenia sp.) numbers increased x2.5 in pH 7.7 over controls. The diatom and filamentous algal community was also more poorly developed in the low pH treatments compared to controls. Colonization of new surfaces likewise showed large decreases in spirorbid numbers, but numbers of sponges and Molgula sp. increased. Spirorbid losses appeared due to both recruitment failure and loss of existing tubes. Spirorbid tubes are comprised of a loose prismatic fabric of calcite crystals. Loss of tube materials appeared due to changes in the binding matrix and not crystal dissolution, as SEM analyses showed crystal surfaces were not pitted or dissolved in low pH conditions. Biofouling communities face dramatic future changes with reductions in groups with hard exposed exoskeletons and domination by soft-bodied ascidians and sponges.
dc.description.sponsorshipEU [227799, 00415/2010]; Natural Environment Research Council [bas0100036, bas0100025]
dc.identifier.doi10.1111/gcb.12841
dc.identifier.issn1354-1013
dc.identifier.issn1365-2486
dc.identifier.urihttp://hdl.handle.net/10400.1/11701
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley Blackwell
dc.subjectFuture ocean acidification
dc.subjectChanging Ocean
dc.subjectCarbonic acid
dc.subjectMarine
dc.subjectColonization
dc.subjectDissociation
dc.subjectOrganisms
dc.subjectSerpulids
dc.subjectConstants
dc.subjectSeawater
dc.titleAcidification effects on biofouling communities: winners and losers
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1913
oaire.citation.issue5
oaire.citation.startPage1907
oaire.citation.titleGlobal Change Biology
oaire.citation.volume21
person.familyNamePower
person.familyNameBatista
person.givenNameDeborah Mary
person.givenNameFrederico
person.identifier.ciencia-id891A-8A44-3CAE
person.identifier.ciencia-idCB1B-7DBC-6303
person.identifier.orcid0000-0003-1366-0246
person.identifier.orcid0000-0002-2848-3011
person.identifier.ridF-5651-2010
person.identifier.scopus-author-id7101806760
person.identifier.scopus-author-id7003808684
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublicationc68f5ffb-63f6-4c70-8957-29e464fb59c0
relation.isAuthorOfPublicationd564e68d-a75e-458f-add4-bdb0739cde8d
relation.isAuthorOfPublication.latestForDiscoveryd564e68d-a75e-458f-add4-bdb0739cde8d

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