The effects of copper and zinc on biomass and taxonomic composition of algal periphyton communities from the River Gharasou, Western Iran

Islam Atazadeh; Martyn Kelly; Mozafar Sharifi; John Beardall

doi:10.2478/v10009-009-0027-3

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The effects of copper and zinc on biomass and taxonomic composition of algal periphyton communities from the River Gharasou, Western Iran

Oceanological and Hydrobiological Studies

Volume 38 (2009): Issue 3 (September 2009)

By: Islam Atazadeh, Martyn Kelly, Mozafar Sharifi and John Beardall

Open Access

|Sep 2009

Abstract

Indoor artificial streams were used to evaluate the short-term (24 day) influence of copper and zinc, individually and in combination, on the biomass and taxonomic composition of algal periphyton communities. The effects of Cu (50 μg 1^-1) and Zn (1 mg 1^-1) were assessed using measurements of biomass, ash-free dry mass (AFDM), chlorophyll-a concentration, taxonomic composition and biovolume. In artificial streams with Cu, Zn and Cu+Zn, there were significant (p > 0.05) reductions of chlorophyll-a concentrations, dry mass and AFDM, and also changes in the species diversity and relative abundances of periphyton species. In artificial streams containing both Cu and Zn the taxonomic composition shifted from a Cyanophyceaen dominated community to one consisting mainly of Chlorophyceae, whilst the relative contribution of Bacillariophyceae was not significantly altered.

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Articles in this issue

DOI: https://doi.org/10.2478/v10009-009-0027-3 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X

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Language: English

Page range: 3 - 14

Published on: Sep 30, 2009

Published by: University of Gdańsk

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

artificial stream,

algae,

biomass,

taxonomic composition,

Related subjects:

© 2009 Islam Atazadeh, Martyn Kelly, Mozafar Sharifi, John Beardall, published by University of Gdańsk
This work is licensed under the Creative Commons License.

Volume 38 (2009): Issue 3 (September 2009)