Pinnulariaceae (Bacillariophyceae) do rio Guaraguaçu, bacia hidrográfica litorânea paranaense, Brasil

Abstract

RESUMO -(Pinnulariaceae (Bacillariophyceae) do rio Guaraguaçu, bacia hidrográfi ca litorânea paranaense, Brasil). O estudo das Pinnulariaceae do rio Guaraguaçu baseou-se em 29 amostras planctônicas e perifíticas coletadas em seis estações de coleta ao longo do leito do rio. A análise qualitativa das amostras permitiu a identifi cação de 36 espécies, 14 variedades e uma forma taxonômica: Caloneis bacillum, C. hyalina, C. formosa, C. westii, Pinnularia acoricola, P. acrosphaeria, P. acrosphaeria P. diversarea, P. dornii, P. gibba, P. graciloides var. latecapitata, P. grunowii, P. hartleyana var. curta, P. huckiae, P. hudsonii, P. hyalina, P. inconstans, P. latevittata, P. maculata, P. meriadiana var. parallela, P. michelcostei, P. microstauron, P. neomajor, P. nobilis var. regularis, P. oominensis, P. rhombarea, P. rostratissima var. parva, P. rumrichae, P. stidolphii, P. stoermeri, P. subcapitata, P. subgibba var. subgibba, P. subgibba var. undulata, P. sudetica, P. tabellaria, P. viridiformis, P. viridis, Pinnularia sp.1 and Pinnularia sp.2; 32 of these are new records for Parana state.

Periphytic diatoms (Bacillariophyta) in streams from three Conservation Units of central Brazil: Pinnularia Ehrenberg

“…The specimes of this study are smaller than that illustrated by Tremarin et al (2010) for P. divergens var. biconstricta.…”

“…Taxonomical analyzes were performed using a light microscope Leica DM500 equipped with digital camera ICC50Hd. The identification was based on valve morphological and morphometric features, using both classic (e.g., Hustedt 1965, Krammer 2000, Metzeltin & Lange-Bertalot 1998, 2007 and regional literature (e.g., Rocha & Bicudo 2008, Tremarin et al 2010, Pereira et al 2012. We observed at least five individuals of each species to the identification.…”

“…These alveolate structures are open to the outside through pores with occlusion of hymen type (Round et al 1990). This family comprises genera such as Caloneis Cleve, Diatomella Greville, Dimidiata Hajós, Ostrupia Heiden ex Hustedt and Pinnularia Ehrenberg (Tremarin et al 2010).…”

“…Despite the high number of species and the frequent occurrence in freshwater environments, there is still scarce information about Pinnularia in Brazil (Tremarin et al 2010), mainly in the central region (Silva et al 2011). Some studies can be cited for Amazonian region (Pereira et al 2012(Pereira et al , 2013(Pereira et al , 2014, São Paulo (Rocha et al 2008) and Paraná States (Brassac & Ludwig 2006, Tremarin et al 2010, and Goiás (Silva et al 2016).…”

“…Some studies can be cited for Amazonian region (Pereira et al 2012(Pereira et al , 2013(Pereira et al , 2014, São Paulo (Rocha et al 2008) and Paraná States (Brassac & Ludwig 2006, Tremarin et al 2010, and Goiás (Silva et al 2016).…”