Periphytic diatoms from Itaqui reservoir, São José dos Pinhais, Paraná: Fragilariales, Eunotiales, Achnanthales and Gomphonema Ehrenberg

Authors

  • Denise Matias de Faria Universidade Federal do Paraná, Setor de Ciências Biológicas, Departamento de Botânica
  • Priscila Izabel Tremarin Universidade Federal do Paraná, Setor de Ciências Biológicas, Departamento de Botânica

Keywords:

periphyton, diatom flora, artificial substrate, taxonomy

Abstract

Periphytic diatoms from Fragilariales, Eunotiales, Achnanthales and Gomphonema Ehrenberg taxa were studied from a reservoir of the Itaqui River, in São José dos Pinhais, PR. Glass slides were used as artificial substrate that was collected after 30 days of incubation. Sampling occurred quarterly from March 2008 to February 2009 for qualitative analysis. Samples were collected to estimate the trophic state of the reservoir, which was classified as hypereutrophic. Forty-nine taxa were identified, being 44 at infrageneric level. Twelve species were first recorded in the State of Paraná: Fragilaria socia, Eunotia rabenhorstiana var. elongata, E. soleirolii, E. ventricosa var. brevis, Gomphonema parvulum f. saprophilum, G. pumilum, Achnanthes minuscula, Nupela wellneri, Planothidium frequentissimum, Ulnaria sp., Eunotia sp.2 and Gomphonema sp.2. Ulnaria sp., Eunotia sp.1, Eunotia sp.2, Gomphonema sp.1 and Gomphonema sp.2, must be so far investigated because no similar form was catalogued on literature.

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Published

2010-09-01

How to Cite

Faria, D. M. de, & Tremarin, P. I. (2010). Periphytic diatoms from Itaqui reservoir, São José dos Pinhais, Paraná: Fragilariales, Eunotiales, Achnanthales and Gomphonema Ehrenberg. Biota Neotropica, 10(3). Retrieved from //www.biotaneotropica.org.br/BN/article/view/663

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