Cianobactérias perifíticas nos reservatórios de Segredo e Iraí, Estado do Paraná, Brasil - DOI: 10.4025/actascibiolsci.v28i4.165

Carina Moresco; Liliana Rodrigues

doi:10.4025/actascibiolsci.v28i4.165

Periphytic cyanobacterial community from Segredo and Iraí reservoirs, State of Parana, Brazil- DOI: 10.4025/actascibiolsci.165

Authors

Carina Moresco UEM Author
Liliana Rodrigues UEM Author

DOI:

https://doi.org/10.4025/actascibiolsci.v28i4.165

Keywords:

cianobactérias, perifíton, algas, floração, reservatórios

Abstract

In order to evaluate spatial-temporal distribution of periphytic cyanobacterial community, as well as the influence of abiotic factors on these organisms, samples were collected in two reservoirs: Segredo and Iraí, located within the Iguaçu river basin, State of Paraná. Samplings were collected in summer (April) and winter (September), 2002, in upper, intermediary and lower regions. A total of 66 cyanobacterial species were registered, with fifty species occurring in Iraí Reservoir and thirty-eight in Segredo Reservoir. Iraí showed higher values of cyanobacteria density (25 to 101 x ind 10³ cm^-2) when compared with Segredo (1 to 14 x ind 10³ cm^-2). We believe that cyanobacteria composition and density resulted from several factors, with preponderance of the effects of abiotic variables differences (nitrogen, phosphorus and temperature) along the longitudinal axis and along the different seasons, as well as the morphometric and hydrodynamic effects.

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Author Biography

Liliana Rodrigues, UEM

Possui graduação em Biologia pela Universidade Federal de Santa Catarina (1983) , mestrado em Botânica pela Universidade Federal do Paraná (1988) e doutorado em Ecologia de Ambientes Aquáticos Continentais pela Universidade Estadual de Maringá (1998) . Atualmente é PROFESSORA ADJUNTO NIVEL C da Universidade Estadual de Maringá. Tem experiência na área de Ecologia , com ênfase em Ecologia de Ecossistemas. Atuando principalmente nos seguintes temas: ECOLOGIA DE PERIFITON, WETLANDS, SUCESSAO DE ALGAS Currículo Lattes

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Published

2006-11-16

Issue

Vol. 28 No. 4 (2006)

Section

Ecology and Limnology

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How to Cite

Periphytic cyanobacterial community from Segredo and Iraí reservoirs, State of Parana, Brazil- DOI: 10.4025/actascibiolsci.165. (2006). Acta Scientiarum. Biological Sciences, 28(4), 335-345. https://doi.org/10.4025/actascibiolsci.v28i4.165