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	Provedor de dados Biological Sciences (2) Autor Rodrigues, Liliana (2) Gubiani, Éder André (1) Ludwig, Thelma Veiga (1) Moresco, Carina (1) Osório, Nicolli Cristina (1) Tremarin, Priscila Izabel (1) Mais... Palavra-chave Diatom (1) Distribution area (1) Periphytic diatoms as bioindicators in a tropical stream: from urban to rural environments Biológicas (1) Periphyton (1) Saúde e agrárias (1) Taxonomy. (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2017 (1) 2015 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Periphytic diatoms as bioindicators in a tropical stream: from urban to rural environments Biological Sciences Moresco, Carina; Gubiani, Éder André; Rodrigues, Liliana. Urbanization and agriculture alter expressively the physical and chemical variables of lotic habitats, especially streams, causing negative effects to the biota of these environments. This study aimed to (i) evaluate the spatial and seasonal variations in the structure of periphytic diatom assemblage in a stream under urban influence in its headwaters, and rural influence, in the rest of its course, and (ii) select diatom species as bioindicators of urban and rural stretches. Three sampling sites were set along the stream according to its longitudinal gradient. The structure of the periphytic diatom assemblage presented differences in spatial scale, differing substantially between the urban and rural habitats. There was a higher influence of nutrients... Tipo: Info:eu-repo/semantics/article Palavras-chave: Periphytic diatoms as bioindicators in a tropical stream: from urban to rural environments Biológicas; Saúde e agrárias. Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/27426 Gomphonema Ehrenberg (Bacillariophyceae) in a lotic environment of the Upper Paraná River floodplain, Brazil Biological Sciences Osório, Nicolli Cristina; Tremarin, Priscila Izabel; Ludwig, Thelma Veiga; Rodrigues, Liliana. A taxonomic study of species of the genus Gomphonema Ehrenberg (Bacillariophyceae) was performed in alotic environment (Ipoitã Channel) of the Upper Paraná River Floodplain. Samplings were performed in June, September and December 2013 and February 2014. Two petioles of Eichhornia azurea (Sw) Kunth were sampled at three different sites in the channel. Twelve species and two taxonomic varieties were identified. All species identified were recorded at the sampling site 3, loca ated close to the Ivinhema River. The lowest number of taxa occurred at the sampling site 1 (9 specific and infra specific taxa), in the confluence with the Paraná River. All taxa of Gomphonema were the first record for the Upper Paraná River Floodplain. Our results emphasize the lack... Tipo: Info:eu-repo/semantics/article Palavras-chave: Diatom; Distribution area; Periphyton; Taxonomy.. Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/32134 Registros recuperados: 2 Primeira ... 1 ... Última

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