2013
DOI: 10.1590/s1519-69842013000400002
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Abstract: The Itaqui reservoir in Paraná state, southern Brazil, is dominated by the floating macrophyte Pistia stratiotes L. and is used for recreation and irrigation. The reservoir's excessive plant cover suggests an extreme trophic state and interferes with multiple uses. The aims of this study were to determine the trophic state of the reservoir water and to document the limnological conditions and the composition of the periphytic diatom community before and after the mechanical removal of macrophytes. As each diat… Show more

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Cited by 17 publications
(11 citation statements)
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“…The most common genera of cyanobacteria that usually dominate the freshwater blooms around the world are Microcystis, Cylindrospermopsis, and Dolichospermum (Fernandes et al 2005;Fonseca & Bicudo 2010;Soares et al 2013;Antunes et al 2015;Li et al 2015;Harke et al 2016). Despite the negative consequences described above, few studies (Faria et al 2013; present study) have focused on the effects of mechanically removing macrophytes on the phytoplankton community. In this study, we investigated the potential effects of mechanically removing macrophytes on the composition and cell abundance of phytoplankton in the Piraquara II reservoir, South Brazil.…”
Section: Introductionmentioning
confidence: 79%
“…The most common genera of cyanobacteria that usually dominate the freshwater blooms around the world are Microcystis, Cylindrospermopsis, and Dolichospermum (Fernandes et al 2005;Fonseca & Bicudo 2010;Soares et al 2013;Antunes et al 2015;Li et al 2015;Harke et al 2016). Despite the negative consequences described above, few studies (Faria et al 2013; present study) have focused on the effects of mechanically removing macrophytes on the phytoplankton community. In this study, we investigated the potential effects of mechanically removing macrophytes on the composition and cell abundance of phytoplankton in the Piraquara II reservoir, South Brazil.…”
Section: Introductionmentioning
confidence: 79%
“…Although eutrophication might lead to a loss in diatom diversity (Wengrat et al 2017), the species richness in shallow lakes might be also influenced by the presence, abundance and diversity of macrophytes (Sayer et al 1999, Bicudo et al 2007. Piraquara II and Itaqui had more diatom richness than the other reservoirs, which can be related to the fact that in the former reservoir were sampled three different species of macrophytes (Marra et al 2016), and that the latter reservoir was almost totally covered by the floating macrophyte Pistia stratiotes L. (Faria et al 2010, Faria et al 2013.…”
Section: Resultsmentioning
confidence: 99%
“…Cetto et al (2004), Silva et al (2010), Bertolli et al (2010) and Faria et al (2010) provided recent diatom inventories from eutrophic and mesotrophic urbans reservoirs: Iraí, Passaúna and Itaqui. Also, Faria et al (2013) selected tolerant diatom species from Itaqui reservoir. There are no related studies in the recently flooded Piraquara II urban reservoir.…”
Section: Introductionmentioning
confidence: 99%