Community Structure of Benthic Algae in a Lotic Ecosystem, Karbala Province-Iraq

This study focused on benthic algae (epipelic and attached algae on concrete lining stream) in Bani-Hassan stream in Holly Karbala, Iraq. The qualitative and quantitative studies of benthic algae were done by collecting 240 samples from five sites in the study area for the period from December 2012...

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Main Author: Baghdad Science Journal
Format: Article
Language:Arabic
Published: College of Science for Women, University of Baghdad 2017-12-01
Series:Baghdad Science Journal
Subjects:
Online Access:http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2412
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author Baghdad Science Journal
author_facet Baghdad Science Journal
author_sort Baghdad Science Journal
collection DOAJ
description This study focused on benthic algae (epipelic and attached algae on concrete lining stream) in Bani-Hassan stream in Holly Karbala, Iraq. The qualitative and quantitative studies of benthic algae were done by collecting 240 samples from five sites in the study area for the period from December 2012 to November 2013. Also, the environmental variables of the stream were examined in term of temporary and spatial. The results showed that the stream was alkaline, hard, oligohaline and a well aerated. The total nitrogen to the total phosphorus (TN: TP) ratio indicates nitrogen limitation. 129 species of benthic algae belonging to 57 genera were identified. Bacillariophyceae (diatoms) was the predominant taxon (95 species) followed by Chlorophyceae (16 species), Cyanophyceae (14 species), Euglenophyceae (3 species) and Pyrophyceae (one species). Some genera were found throughout the study period: Nitzschia, Navicula, Cymbella, Gomphonema, Surirella, Cocconeis, Aulacoseira, Oscillatoria, Lyngbya, Spirulina, and ? Scenedesmus. Site 3 recorded the highest total number of algae in spring 2013, and the lowest total number was at site 5 in Autumn 2013. The chlorophyll-a concentration did not match the total number of algae.
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spelling doaj.art-a5751da6110a40e588a54c48370381f32022-12-21T21:43:12ZaraCollege of Science for Women, University of BaghdadBaghdad Science Journal2078-86652411-79862017-12-0114410.21123/bsj.14.4.692-706Community Structure of Benthic Algae in a Lotic Ecosystem, Karbala Province-IraqBaghdad Science JournalThis study focused on benthic algae (epipelic and attached algae on concrete lining stream) in Bani-Hassan stream in Holly Karbala, Iraq. The qualitative and quantitative studies of benthic algae were done by collecting 240 samples from five sites in the study area for the period from December 2012 to November 2013. Also, the environmental variables of the stream were examined in term of temporary and spatial. The results showed that the stream was alkaline, hard, oligohaline and a well aerated. The total nitrogen to the total phosphorus (TN: TP) ratio indicates nitrogen limitation. 129 species of benthic algae belonging to 57 genera were identified. Bacillariophyceae (diatoms) was the predominant taxon (95 species) followed by Chlorophyceae (16 species), Cyanophyceae (14 species), Euglenophyceae (3 species) and Pyrophyceae (one species). Some genera were found throughout the study period: Nitzschia, Navicula, Cymbella, Gomphonema, Surirella, Cocconeis, Aulacoseira, Oscillatoria, Lyngbya, Spirulina, and ? Scenedesmus. Site 3 recorded the highest total number of algae in spring 2013, and the lowest total number was at site 5 in Autumn 2013. The chlorophyll-a concentration did not match the total number of algae.http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2412"Benthic Algae, Epipelic Algae, Concrete lining stream, Lotic Ecosystem. "
spellingShingle Baghdad Science Journal
Community Structure of Benthic Algae in a Lotic Ecosystem, Karbala Province-Iraq
Baghdad Science Journal
"Benthic Algae, Epipelic Algae, Concrete lining stream, Lotic Ecosystem. "
title Community Structure of Benthic Algae in a Lotic Ecosystem, Karbala Province-Iraq
title_full Community Structure of Benthic Algae in a Lotic Ecosystem, Karbala Province-Iraq
title_fullStr Community Structure of Benthic Algae in a Lotic Ecosystem, Karbala Province-Iraq
title_full_unstemmed Community Structure of Benthic Algae in a Lotic Ecosystem, Karbala Province-Iraq
title_short Community Structure of Benthic Algae in a Lotic Ecosystem, Karbala Province-Iraq
title_sort community structure of benthic algae in a lotic ecosystem karbala province iraq
topic "Benthic Algae, Epipelic Algae, Concrete lining stream, Lotic Ecosystem. "
url http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2412
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