Desmidioflórula (Zygnemaphyceae, Desmidiales) do rio Cascavel, oeste do estado do Paraná, Brasil

Abstract

-(Desmid flora (Zygnemaphyceae, Desmidiales) of the Cascavel River, Western Paraná State, Brazil). This study aimed to perform the taxonomic survey of desmids of an important lotic ecosystem in the western region of Paraná State. Samples were collected monthly (July 2010 to June 2011), in three sampling stations from the Cascavel River, resulting in the identification of 60 taxa, belonging to 10 genera. The Cosmarium Corda ex Ralfs (29) and Closterium Nitzsch ex Ralfs (10) obtained the largest number of inventoried species. A total of 14 new citations were recorded for the Paraná State, distributed among genera Actinotaenium (Nägeli) Teiling (2), Cosmarium (7), Closterium (1), Micrasterias C. Agardh ex Ralfs (1), Pleurotaenium Nägeli (1), Staurastrum Meyen (1) and Staurodesmus Teiling (1). At the end of the study was observed that the total number of species identified, 83.9% were common to all three stations collected, 13.3% were recorded in the sampling stations 2 and 3, and 3.3% only at station 3.

New records of Cosmarium Corda ex Ralfs in lotic environment, adjacent to the Iguaçu National Park, Paraná State, Brazil

“…Felisberto & Rodrigues (2005a, b, 2010b, 2012, Bortolini et al (2010b), Menezes et al (2011b) and Aquino et al (2014).…”

“…The individuals found showed cell measurements a bit smaller than the ones recorded by Prescott et al (1981), such as: L: 30-35 μm, W: 27-30 μm and I: 7.5-11 μm, however all the other characteristics are in accordance with the description. Geographic distribution in the Paraná State: Bittencourt-Oliveira (1993), Silva & Cecy (2004), Biolo et al (2013), Menezes et al (2013) and Aquino et al (2014). Geographic distribution in the Paraná State: First record of the taxon.…”

“…For the Paraná State 26 studies have contributed to the desmids knowledge until the present moment: Bittencourt-Oliveira (1993a, b), Bittencourt-Oliveira & Castro (1993), Cecy (1993), Bittencourt-Oliveira & Mecenas (1994), Cecy et al (1997), Picelli-Vicentim (2001), Cetto et al (2004), Silva & Cecy (2004), Biolo et al (2008Biolo et al ( , 2013, Felisberto & Rodrigues (2007, Moresco et al (2009), Bortolini et al (2008Bortolini et al ( , 2009Bortolini et al ( , 2010a, Menezes et al (2011aMenezes et al ( , b, 2013, Aquino et al(2014) and Carvalho et al (2015). Among them, only four comprise exclusively the Cosmarium genus: Felisberto & Rodrigues (2010b), Menezes et al (2011b), Biolo et al (2013) and Carvalho et al (2015).…”

The genus Euastrum Ehrenberg ex Ralfs (Desmidiaceae) in a subtropical stream adjacent to the Parque Nacional do Iguaçu, Paraná State, Brazil

“…Comments were elaborated when deemed necessary. Occurence in the Paraná State: Bortolini et al (2008), Menezes et al (2013), Aquino et al (2014 According to Prescott et al (1977) The individuals found presented inferior sized than the ones cited by Prescott et al (1977), being close to cited by Silva e Felisberto (2015) which the length would be 31-34 μm; width 19-21 μm and isthmus of 4-5 μm, although all the other characteristics are in accordance with the description. Occurrence in the Paraná State: Felisberto & Rodrigues (2005a, b, 2008, 2010, Bortolini et al (2010), Aquino et al (2014).…”

“…For the Paraná State, 11 studies have contributed to desmids knowledge, approaching the Euastrum genus: Picelli-Vicentim (2001), Biolo et al (2008), Felisberto & Rodrigues (2005a, b, 2008, 2010a, Bortolini et al (2008Bortolini et al ( , 2010, Menezes et al (2011Menezes et al ( , 2013 and Aquino et al (2014). There are no studies encompassing exclusively the Euastrum genus.…”