Ecology and distribution of Aulacoseira species (Bacillariophyta) in tropical reservoirs from Brazil

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dc.contributor.authorBicudo, Denise C.
dc.contributor.authorTremarin, Priscila I.
dc.contributor.authorAlmeida, Pryscilla D.
dc.contributor.authorZorzal-Almeida, Stéfano
dc.contributor.authorWengrat, Simone
dc.contributor.authorFaustino, Samantha B.
dc.contributor.authorCosta, Lívia F.
dc.contributor.authorBartozek, Elaine C.R. [UNESP]
dc.contributor.authorRocha, Angélica C.R.
dc.contributor.authorBicudo, Carlos E.M.
dc.contributor.authorMorales, Eduardo A.
dc.contributor.institutionInstituto de Botânica de São Paulo
dc.contributor.institutionUniversidade Federal do Paraná (UFPR)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidad Católica Boliviana San Pablo
dc.date.accessioned2018-12-11T16:43:45Z
dc.date.available2018-12-11T16:43:45Z
dc.date.issued2016-07-02
dc.description.abstractEcological preferences and distribution of Aulacoseira species in southeastern Brazilian reservoirs with varying trophic states were studied. One hundred and fourteen plankton samples (winter and summer) from 57 sites located in 16 reservoirs were analysed. Ten water quality parameters were measured. Ten Aulacoseira species were identified using light, scanning and transmission electron microscopy, and new information on their ecological preferences is provided here. Our results indicate that trophic gradient is the main driver of species distribution. Principal components analysis and calculation of weighted average nutrient optima revealed three indicator taxa, Aulacoseira tenella characteristic for oligotrophic waters and two varieties of Aulacoseira granulata (nominate and var. angustissima) typical for eutrophic reservoirs. This is the first ecological study of Aulacoseira in Brazil, adding information on the distribution of this genus in the tropics, and highlighting the need for species-level identification and regional studies to improve the use of diatoms in water quality assessment.en
dc.description.affiliationDepartment of Ecology Instituto de Botânica de São Paulo, Av. Miguel Stefano 3687
dc.description.affiliationDepartment of Botany Universidade Federal do Paraná, Caixa Postal 19031
dc.description.affiliationUniversidade Estadual Paulista – UNESP Campus de Rio Claro, SP. Av. 24A, 1515
dc.description.affiliationHerbario Criptogámico Universidad Católica Boliviana San Pablo, Calle M. Márquez esq. Plaza Jorge Trigo s/n, P.O. Box 5381
dc.description.affiliationUnespUniversidade Estadual Paulista – UNESP Campus de Rio Claro, SP. Av. 24A, 1515
dc.format.extent199-215
dc.identifierhttp://dx.doi.org/10.1080/0269249X.2016.1227376
dc.identifier.citationDiatom Research, v. 31, n. 3, p. 199-215, 2016.
dc.identifier.doi10.1080/0269249X.2016.1227376
dc.identifier.file2-s2.0-84987856231.pdf
dc.identifier.issn2159-8347
dc.identifier.issn0269-249X
dc.identifier.scopus2-s2.0-84987856231
dc.identifier.urihttp://hdl.handle.net/11449/168952
dc.language.isoeng
dc.relation.ispartofDiatom Research
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectautecology
dc.subjectbioindication
dc.subjectcentric diatoms
dc.subjectSouth America
dc.subjecttaxonomy
dc.subjectweighted average
dc.titleEcology and distribution of Aulacoseira species (Bacillariophyta) in tropical reservoirs from Brazilen
dc.typeArtigo

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