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:: Volume 2, Issue 3 (atumn 2016) ::
3 2016, 2(3): 191-200 Back to browse issues page
Identifying and Counting Prevalent Algae in Karun River in Ahvaz City
A Neisi, M Vosoughi , Gh Mousavian, E Shokouhi, M Moradi, A Motavalian
Ardabil University of Medical Sciences
Abstract:   (1387 Views)

Background & objectives: Karun River is the largest and the most watery river in Iran. Sewage discharge into the river provides the promising conditions for growth of algae. Algae are amongst the indicator micro-organisms to determine rivers water pollution. The purpose of the present study was identifying and counting prevalent algae in Karun River in Ahvaz city.

Methods: This study was performed in both rainy (December and January) and without rainfall seasons (October and November) at three sampling stations within Ahvaz city. Parameters such as pH, DO, temperature, and water turbidity were measured. The algae were identified and counted by optical microscopy.

Results: Prevalent algae were identified in 6 categories as; one genus Euglena, 12 genus blue-green algae, 15 genus diatoms, 12 genus yellow-green algae, 28 genus green algae, and  one genus golden algae (only Dinobryon). Green algae (especially Chlorella), blue-green algae (especially Phoromidium), diatoms (especially Nitzchia) and yellow-green algae (especially Tribonema) had the highest and Euglena had the lowest frequency. The Statistical results showed that there was no significant relationship between pH, DO, temperature, and turbidity and algae count in sampling seasons and stations. However, Pearson test showed a significant relationship between only temperature and Euglena so that Euglena number increased by increasing temperature.

Conclusion: Identified algae in studied stations confirm pollution of Karun River to municipal sewage

Keywords: Algae, River, Karun, Ahvaz, Water.
Full-Text [PDF 207 kb]   (896 Downloads)    
Type of Study: Research | Subject: General
Received: 2017/07/10 | Accepted: 2017/07/10 | Published: 2017/07/10
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Neisi A, Vosoughi M, Mousavian G, Shokouhi E, Moradi M, Motavalian A. Identifying and Counting Prevalent Algae in Karun River in Ahvaz City. 3. 2016; 2 (3) :191-200
URL: http://oeh.arums.ac.ir/article-1-93-en.html

Volume 2, Issue 3 (atumn 2016) Back to browse issues page
فصلنامه سلامت محیط و کار Occupational and Environmental Health
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