Data/hora: 01/06/2024 16:35:52

Provedor de dados: | Acta Scientiarum: Biological Sciences
País: | Brazil
Título: | Periphytic diatom as bioindicators in urban and rural streams  - doi: 10.4025/actascibiolsci.v36i1.18175
Autores: | Moresco, Carina; Universidade Estadual de Maringá; Rodrigues, Liliana; Universidade Estadual de Maringá.
Data: | 2013-08-27
Ano: | 2013
Palavras-chave: | Ciências Biológicas - Ecologia indicator species; Nutrients; Human impact; Bacillariophyta; Periphyton Diatomáceas Perifíticas.
Resumo: | Periphytic diatoms were sampled from two streams, one located in an urban area and the other located in a rural area, in Maringá, State of Paraná, Brazil. In addition to temporal variability, differences in the assemblage structure between streams were evaluated and correlated with physical and chemical characteristics. Six samples of periphytic diatoms were collected from each stream from July 2007 to June 2008. The streams differed in abiotic factors and in relation to the structure of diatom assemblages and the spatial scale was more important than the temporal scale (ANOVA, p ≥ 0.05; non-metric multidimensional scaling (NMS) stress = 13.73, p = 0.009). The Procrustes analysis (m2 = 0.7607 and p = 0.0001) showed that variables with the greatest influence on the assemblage structure of diatoms were total nitrogen (TN), electrical conductivity, dissolved oxygen (DO), chemical oxygen demand (COD), biochemical oxygen demand (BOD5) and flow. These results indicate that abiotic variables modified by the land-use had greater influence on the community structure of diatoms than seasonal changes in abiotic variables.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/18175

10.4025/actascibiolsci.v36i1.18175

Editor: | Universidade Estadual De Maringá

Relação:

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/18175/pdf

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/18175/pdf_1

Formato:

application/pdf

application/pdf

Fonte:

Acta Scientiarum. Biological Sciences; v. 36, n. 1 (2014); 67-78

Acta Scientiarum. Biological Sciences; v. 36, n. 1 (2014); 67-78

1807-863X

1679-9283

Fonte:

DECLARATION OF ORIGINALITY AND CESSATION OF COPYRIGHTI Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. I also declare that once published in the Acta Scientiarum. Biological Sciences, a publication of the Universidade Estadual de Maringá, it will not be submitted by me or by any co-author to any other scientific communication mean. In my name and in the name of co-authors, I shall cede the copyright of the above mentioned article to the Universidade Estadual de Maringá and I declare that I know that the non-observance of this norm may make me liable for the penalties contemplated in the Law for the Protection of Authors’ Rights (Act 9609 of the 19th February 1998).

DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAIS Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Biological Sciences, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).