Structure and temporal variation of the phytoplankton of a macrotidal beach from the Amazon coastal zone

dc.creatorQUEIROZ, Jislene Brito Matos
dc.creatorOLIVEIRA, Suellen Mara Oliveira de
dc.creatorPEREIRA, Luci Cajueiro Carneiro
dc.creatorCOSTA, Rauquírio André Albuquerque Marinho da
dc.date2017-03-10T15:41:36Z
dc.date2017-03-10T15:41:36Z
dc.date2016-09
dc.date.accessioned2023-09-28T15:38:33Z
dc.date.available2023-09-28T15:38:33Z
dc.identifierMATOS, JISLENE Brito et al. Structure and temporal variation of the phytoplankton of a macrotidal beach from the Amazon coastal zone. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 88, n. 3, p. 1325-1339, set. 2016. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000401325&lng=pt&nrm=iso>. Acesso em: 10 mar. 2017. <http://dx.doi.org/10.1590/0001-3765201620150688>.
dc.identifier1678-2690
dc.identifierhttp://repositorio.ufpa.br/jspui/handle/2011/7853
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9018382
dc.descriptionThe present study aimed to analyze the structure and the temporal variation of the phytoplankton of Ajuruteua beach (Bragança, Pará) and to investigate the influence of environmental variables on the dynamics of this community to provide a basis about the trophic state of this environment. Biological, hydrological and hydrodynamic samplings were performed during a nyctemeral cycle in the months of November/08, March/09, June/09 and September/09. We identified 110 taxa, which were distributed among the diatoms (87.3%), dinoflagellates (11.8%) and cyanobacteria (0.9%), with the predominance of neritic species, followed by the tychoplankton species. Chlorophyll-a concentrations were the highest during the rainy period (24.5 mg m-3), whereas total phytoplankton density was higher in the dry period (1,255 x 103 cell L-1). However, phytoflagellates density was significantly higher during the rainy period. Cluster Analysis revealed the formation of four groups, which were influenced by the monthly differences in the environmental variables. The Principal Component Analysis indicated salinity and chlorophyll-a as the main variables that explained the components. Spearman correlation analysis supported the influence of these variables on the local phytoplankton community. Overall, the results obtained suggest that rainfall and strong local hydrodynamics play an important role in the dynamic of the phytoplankton of Ajuruteua beach, by influencing both environmental and biological variables.
dc.formatapplication/pdf
dc.languagepor
dc.publisherUniversidade Federal do Pará
dc.publisherBrasil
dc.publisherUFPA
dc.relationAnais da Academia Brasileira de Ciências
dc.rightsAcesso Aberto
dc.subjectFitoplâncton
dc.subjectVariáveis ambientais
dc.subjectVariação temporal
dc.subjectPraia de Ajuruteua - PA
dc.subjectBragança - PA
dc.subjectVariação climática
dc.titleStructure and temporal variation of the phytoplankton of a macrotidal beach from the Amazon coastal zone
dc.typeArtigo de Periódico


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