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Phytoplanktonic associations: a tool to understanding dominance events in a tropical Brazilian reservoir Acta Botanica
Moura,Ariadne do Nascimento; Bittencourt-Oliveira,Maria do Carmo; Dantas,Ênio Wocyli; Arruda Neto,João Dias de Toledo.
The aim of this study was to characterize phytoplankton associations, as well as discuss controlling factors determining algal dominance in a eutrophic tropical reservoir, Mundaú, Pernambuco, Brazil. Water samples were collected during the dry period (January/2005) and the rainy period (June/2005). The samples were collected from both limnetic and littoral regions, and the phytoplankton assemblages identified from current literature after preservation in formaldehyde 4%. At the same time as sampling was done, in situ measurements of water temperature, transparency, dissolved oxygen, and pH were also taken. Total phosphorus, total nitrogen concentration and the Trophic State Index were subsequently determined in the laboratory. Phytoplankton density (ind....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phytoplankton associations; Drinking water reservoirs; Northeast Brazil.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062007000300011
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