Chlorococcales s. l. (Chlorophyceae) and Zygnematales (Zygnematophyceae) in a pond of Balneário do Lérmen, Rio Grande do Sul, Brazil

• Autor(a) principal: Hentschke, Guilherme Scotta
• Data de Publicação: 2012
• Outros Autores: Prado, João Fernando
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Iheringia. Série Botânica
• Texto Completo: https://isb.emnuvens.com.br/iheringia/article/view/32
• topic: phytoplankton; new occurrences; fitoplâncton; novas ocorrências

In Rio Grande do Sul State green algae are largely unknown and most studies are concentrated in the regions of the Coastal Plain and Central Depression, localitions near Porto Alegre. This paper aims to present the Chlorococcales and Zygnematales species found in a pond at Balneário do Lérmen, Itaára, from June 2004 to June 2005. Samples were collected with a plankton net at four stations of the pond. The water pH ranged between 6 and 8. We identified 43 taxa in specific and infra-specific levels and three taxa in generic level. The taxa Radiococcus planktonicus Lund, Golenkinia paucispina West & West, Closterium turgidum Ehrenberg ex Ralfs, Staurastrum caledonense Hüber-Pestalozzi and Staurastrum cingulum (West & West) Smith var. obesum Smith are first reports for Rio Grande do Sul State. Chlorophyceae, represented by Chlorococcales, showed greatest specific richness with 38 taxa in comparison with Zygnematophyceae (8).