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Paper Information

Journal:   IRANIAN JOURNAL OF FISHERIES SCIENCES   SEPTEMBER 2010 , Volume 9 , Number 3; Page(s) 368 To 381.
 
Paper: 

THE FLUCTUATIONS OF PHYSICOCHEMICAL FACTORS AND PHYTOPLANKTON POPULATIONS OF URMIA LAKE, IRAN

 
 
Author(s):  ESMAEILI DAHESHT L.*, NEGARESTAN H., IMANIFAR A., MOHEBI F., AHMADI R.
 
* IRANIAN ARTEMIA RESEARCH CENTER, URUMIA, IRAN
 
Abstract: 

Urmia Lake is one of the two large hypersaline lakes in the world which have Artemia. It is located in northwest of Iran. Due to a decrease in water inflow and volume, the salinity of Urmia Lake has reached to more than 300 g.1-1 since 2001. The increased salinity has greatly influenced biological aspects of the lake, and caused the lake undergoes at critical conduction. The aim of the present study was to investigate the distribution fluctuations of phytoplanktons and selected physicochemical factors in relation to Artemia distribution in Urmia Lake during 8 months. Statistical analysis of mean values of ion concentrations and phytoplankton abundance indicated significant differences among sampling months. The minimum and maximum values for the selected factors were, as Cl- 176.2-201.3 g.l-1, CO2 95-175mg.l-1, dissolved oxygen (DO) 0.1-2.8 mg.l-1, HCO3 144-496 mg.l-1, PO42+104-875mg.l-1, NO3-330-4104 mg.l-1, NO2-4-21.5 mg.l-1, SO42- 10490-29840 mg.l-1, Ca2+561-1 606mg.l-1, Mg2+ 3649-1 4587 mg.l-1while water hardness was 21000- 62000 mg.l-1. Fourteen phytoplankton genera included Bacillariophyceae (10 genera), Chlorophyceae (2 genera) and Cyanophyceae (2 genera) were identified during sampling period. The smallest average density of phytoplankton 97249 L-1 was observed in December 2005 and the greatest average density 481983 L-1 in August 2005. Dunaliella sp. composed 92.1% of the lake's phytoplankton. Statistical analysis of phytoplanktons fluctuations showed a significant difference among different months (p<0.05).

 
Keyword(s): URMIA LAKE, PHYSICOCHEMICAL, PHYTOPLANKTON, IRAN
 
 
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Citations: 
 
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APA: Copy

ESMAEILI DAHESHT, L., & NEGARESTAN, H., & IMANIFAR, A., & MOHEBI, F., & AHMADI, R. (2010). THE FLUCTUATIONS OF PHYSICOCHEMICAL FACTORS AND PHYTOPLANKTON POPULATIONS OF URMIA LAKE, IRAN. IRANIAN JOURNAL OF FISHERIES SCIENCES, 9(3), 368-381. https://www.sid.ir/en/journal/ViewPaper.aspx?id=185641



Vancouver: Copy

ESMAEILI DAHESHT L., NEGARESTAN H., IMANIFAR A., MOHEBI F., AHMADI R.. THE FLUCTUATIONS OF PHYSICOCHEMICAL FACTORS AND PHYTOPLANKTON POPULATIONS OF URMIA LAKE, IRAN. IRANIAN JOURNAL OF FISHERIES SCIENCES. 2010 [cited 2021October25];9(3):368-381. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=185641



IEEE: Copy

ESMAEILI DAHESHT, L., NEGARESTAN, H., IMANIFAR, A., MOHEBI, F., AHMADI, R., 2010. THE FLUCTUATIONS OF PHYSICOCHEMICAL FACTORS AND PHYTOPLANKTON POPULATIONS OF URMIA LAKE, IRAN. IRANIAN JOURNAL OF FISHERIES SCIENCES, [online] 9(3), pp.368-381. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=185641.



 
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