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When descriptive ecology meets physiology: a study in a South Atlantic rhodolith bed

2020-05Artigo científico Acesso restrito
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dc.contributor.authorCarvalho, V. F.
dc.contributor.authorSilva, João
dc.contributor.authorKerr, R.
dc.contributor.authorAnderson, A. B.
dc.contributor.authorBastos, E. O.
dc.contributor.authorCabral, D.
dc.contributor.authorGouvea, L. P.
dc.contributor.authorPeres, L.
dc.contributor.authorMartins, C. D. L.
dc.contributor.authorSilveira-Andrade, V. M.
dc.contributor.authorSissini, M. N.
dc.contributor.authorHorta, P. H.
dc.date.accessioned2021-06-24T11:35:40Z
dc.date.available2021-06-24T11:35:40Z
dc.date.issued2020-05
dc.description.abstractThis study presents two years of characterization of a warm temperate rhodolith bed in order to analyse how certain environmental changes influence the community ecology. The biomass of rhodoliths and associated species were analysed during this period and in situ experiments were conducted to evaluate the primary production, calcification and respiration of the dominant species of rhodoliths and epiphytes. The highest total biomass of rhodoliths occurred during austral winter. Lithothamnion crispatum was the most abundant rhodolith species in austral summer. Epiphytic macroalgae occurred only in January 2015, with Padina gymnospora being the most abundant. Considering associated fauna, the biomass of Mollusca increased from February 2015 to February 2016. Population densities of key reef fish species inside and around the rhodolith beds showed significant variations in time. The densities of grouper (carnivores/piscivores) increased in time, especially from 2015 to 2016. On the other hand, grunts (macroinvertebrate feeders) had a modest decrease over time (from 2014 to 2016). Other parameters such as primary production and calcification of L. crispatum were higher under enhanced irradiance, yet decreased in the presence of P. gymnospora. Community structure and physiological responses can be explained by the interaction of abiotic and biotic factors, which are driven by environmental changes over time. Biomass changes can indicate that herbivores play a role in limiting the growth of epiphytes, and this is beneficial to the rhodoliths because it decreases competition for environmental resources with fleshy algae.
dc.description.sponsorshipConselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ) [407365/2013-3]
dc.description.sponsorshipCoordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
dc.description.sponsorshipCNPqConselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ) [302604/2015-4]
dc.description.sponsorshipFAPES (Fundacao de Amparo a Pesquisa e Inovacao do Espirito Santo, Brazil)/CAPES [10/2018]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1017/S0025315420000284
dc.identifier.issn0025-3154
dc.identifier.urihttp://hdl.handle.net/10400.1/16508
dc.language.isoeng
dc.peerreviewedyes
dc.publisherCambridge
dc.subjectCalcification
dc.subjectEpiphytes
dc.subjectHerbivory
dc.subjectPhotosynthesis
dc.subjectRhodoliths
dc.subject.otherMarine & Freshwater Biology
dc.titleWhen descriptive ecology meets physiology: a study in a South Atlantic rhodolith bed
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage360
oaire.citation.issue3
oaire.citation.startPage347PII S0025315420000284
oaire.citation.titleJournal of The Marine Biological Association of The United Kingdom
oaire.citation.volume100
person.familyNameSilva
person.givenNameJoão
person.identifier82814
person.identifier.ciencia-id8216-527E-1BD4
person.identifier.orcid0000-0002-7211-1661
person.identifier.ridJ-7874-2013
person.identifier.scopus-author-id7403023547
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication61040b53-b17a-40f6-b42e-f5476a7a6ddb
relation.isAuthorOfPublication.latestForDiscovery61040b53-b17a-40f6-b42e-f5476a7a6ddb

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