Juliana Ferreira da Silva, S. E. Salomoni, M. A. Oliveira, Sérgio Luiz de Oliveira Machado
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引用次数: 4
Abstract
Epilithic diatoms are important components of freshwater periphyton. This study aimed to describe the composition and distribution of the epilithic diatom community in thirteen sampling sites in the Arroio Grande hydrographical sub-basin, RS, between October 2012 and March 2013. Samples were cleaned in oxygen peroxide and mounted on permanent slides for identifi cation. The diatom fl ora was composed of 106 species in 23 families and 41 genera. The most representative families and genera in taxa richness were Cymbellaceae (12 taxa), Naviculaceae (11), Sellaphoraceae (10), Gomphonema Ehreberg (10), Sellaphora Mereschkowsky, Nitzchia Hassall (seven), Navicula Bory, and Pinnularia C.G. Ehrenberg (six). Morphometric data for each species are presented. The upper reaches of the river basin presented greater specifi c richness than the lower stretches. This is the fi rst record of the diatom fl ora in this hydrographic basin.
期刊介绍：
The Iheringia, Série Botânica is a publication edited by the Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, since 1958. The name Iheringia is actually a tribute to Hermann von Ihering (a German researcher who became a Brazilian citizen) and his important studies in the Natural Sciences.The journal has the mission of publishing articles, reviews and original scientific notes that cover diverse areas in Botany, and may be written in Portuguese, Spanish and English.
The journal is widely available in both international and national scientific community. The issues are published and distributed twice a year to 118 national institutions and 152 international institutions. The distribution is either free of charge or by exchange.
Impac Factor JCR 2014/2015 = 0.263
Qualis CAPES 2015: B 4 (Biodiversity) B1 (Agricultural Science I) B1 (Environment)
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