Macroalgae of a stream in southeastern Brazil: composition, seasonal variation and relation to physical and chemical variables

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.creatorNecchi Júnior, Orlando [UNESP]
dc.creatorDip, Marícia Ribeiro [UNESP]
dc.creatorGóes, Rejane Maira [UNESP]
dc.date2014-05-27T11:17:25Z
dc.date2014-05-27T11:17:25Z
dc.date1991-05-01
dc.date.accessioned2023-09-12T07:17:47Z
dc.date.available2023-09-12T07:17:47Z
dc.identifierhttp://dx.doi.org/10.1007/BF00016425
dc.identifierHydrobiologia, v. 213, n. 3, p. 241-250, 1991.
dc.identifier0018-8158
dc.identifier1573-5117
dc.identifierhttp://hdl.handle.net/11449/130508
dc.identifier10.1007/BF00016425
dc.identifierWOS:A1991FQ25400006
dc.identifier2-s2.0-0026290036
dc.identifier8973982859569408
dc.identifier0947193347312157
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8779812
dc.descriptionMacroalgal seasonality was studied monthly in a second-order stream in the north-west of São Paulo State, S.E. Brazil. Seasonal variation was based on frequency and percentage cover. Seven species were found during the study period, three of which ('Chantransia' stage of Sirodotia delicatula, Homoeothrix juliana and Klebsormidium subtile) were encountered throughout the year and showed well-defined seasonal patterns as well as the highest value of frequency and percentage cover. 'Chantransia' and H. juliana dominated in summer and fall, while for K. subtile winter was the most favourable period. The remaining species (Oscillatoria agardhii, Microcoleus subtorulosus, Oedogonium sp. and Chaetophora elegans) had no clear seasonal pattern, in addition to their low values of frequency and percentage cover. Individually, K. subtile correlated with higher number of physical and chemical variables (oxygen, pH, precipitation, temperature, daylength, conductance and turbidity) than 'Chantransia' and H. juliana (discharge and depth). Principal component analyses revealed that no single variable was responsible for the macroalgal seasonal dynamics. The variables most closely related to seasonal variation of the macroalgal community were daylength, precipitation, discharge, turbidity and dissolved oxygen. Precipitation and flow were suggested as key factors in determining seasonality of the macroalgae. © 1991 Kluwer Academic Publishers.
dc.descriptionDepto. Botânica IBILCE - UNESP, Caixa Postal 136, SP, 15001 - SJRP
dc.descriptionDepto. Botânica IBILCE - UNESP, Caixa Postal 136, SP, 15001 - SJRP
dc.format241-250
dc.languageeng
dc.publisherKluwer Academic Publ
dc.relationHydrobiologia
dc.relation2.165
dc.relation0,896
dc.rightsAcesso restrito
dc.sourceScopus
dc.subjectBrazil
dc.subjectEcology
dc.subjectMacroalgae
dc.subjectSeasonality
dc.subjectStream
dc.subjectBrazil, Sao Paulo State
dc.subjectChaetophora elegans
dc.subjectHomoeothrix juliana
dc.subjectKlebsormidium subtile
dc.subjectMicrocoleus subtorulosus
dc.subjectOedogonium
dc.subjectOscillatoria agardhii
dc.subjectSirodotia delicatula
dc.titleMacroalgae of a stream in southeastern Brazil: composition, seasonal variation and relation to physical and chemical variables
dc.typeArtigo


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