Diversity Measurement Indices of Diatom Communities in the Tigris River within Wasit Province, Iraq

The study was conducted to measure diatom species diversity in the lotic ecosystem across the Wasit Province for 12 months. The quantitative study of diatoms (phytoplankton) was investigated in the Tigris river. The density of algae was ranged from 60989 cell×103/l to 112780.82 cell×103/l in the fiv...

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Main Author: Baghdad Science Journal
Format: Article
Language:Arabic
Published: College of Science for Women, University of Baghdad 2018-06-01
Series:Baghdad Science Journal
Subjects:
Online Access:http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2450
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author Baghdad Science Journal
author_facet Baghdad Science Journal
author_sort Baghdad Science Journal
collection DOAJ
description The study was conducted to measure diatom species diversity in the lotic ecosystem across the Wasit Province for 12 months. The quantitative study of diatoms (phytoplankton) was investigated in the Tigris river. The density of algae was ranged from 60989 cell×103/l to 112780.82 cell×103/l in the five sites. These algae were belonging to 39 genera. The richness index values ranged from 1.53 at site 5 in January 2016 to 6.34 at site 1 and June2015. Shannon-Weiner diversity index (H´) was 2.33 in February 2016 and 3.72 in June 2015 both values at site 3, whereas Evenness index was 0.54 at site 5 in March2016 and 0.98 at site 1 in both August2015 and May2016. The lack of homogeneity of the appearance of species indicates the dominance of a few species with high densities, which is an indicator of the existence of environmental pressure. All studied indices showed that the Tigris River quality is suitable for the living aquatic life or may be slightly affected by the pollutants.
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spelling doaj.art-323fd8234f254f22ab4a1cf6996126732022-12-21T21:20:23ZaraCollege of Science for Women, University of BaghdadBaghdad Science Journal2078-86652411-79862018-06-0115210.21123/bsj.15.2.117-122Diversity Measurement Indices of Diatom Communities in the Tigris River within Wasit Province, IraqBaghdad Science JournalThe study was conducted to measure diatom species diversity in the lotic ecosystem across the Wasit Province for 12 months. The quantitative study of diatoms (phytoplankton) was investigated in the Tigris river. The density of algae was ranged from 60989 cell×103/l to 112780.82 cell×103/l in the five sites. These algae were belonging to 39 genera. The richness index values ranged from 1.53 at site 5 in January 2016 to 6.34 at site 1 and June2015. Shannon-Weiner diversity index (H´) was 2.33 in February 2016 and 3.72 in June 2015 both values at site 3, whereas Evenness index was 0.54 at site 5 in March2016 and 0.98 at site 1 in both August2015 and May2016. The lack of homogeneity of the appearance of species indicates the dominance of a few species with high densities, which is an indicator of the existence of environmental pressure. All studied indices showed that the Tigris River quality is suitable for the living aquatic life or may be slightly affected by the pollutants.http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2450Water quality, Diatoms, Tigris River, richness index, Shannon-Weiner index, Evenness index
spellingShingle Baghdad Science Journal
Diversity Measurement Indices of Diatom Communities in the Tigris River within Wasit Province, Iraq
Baghdad Science Journal
Water quality, Diatoms, Tigris River, richness index, Shannon-Weiner index, Evenness index
title Diversity Measurement Indices of Diatom Communities in the Tigris River within Wasit Province, Iraq
title_full Diversity Measurement Indices of Diatom Communities in the Tigris River within Wasit Province, Iraq
title_fullStr Diversity Measurement Indices of Diatom Communities in the Tigris River within Wasit Province, Iraq
title_full_unstemmed Diversity Measurement Indices of Diatom Communities in the Tigris River within Wasit Province, Iraq
title_short Diversity Measurement Indices of Diatom Communities in the Tigris River within Wasit Province, Iraq
title_sort diversity measurement indices of diatom communities in the tigris river within wasit province iraq
topic Water quality, Diatoms, Tigris River, richness index, Shannon-Weiner index, Evenness index
url http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2450
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