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Pakistan Journal of Biological Sciences
  Year: 2006 | Volume: 9 | Issue: 9 | Page No.: 1787-1790
DOI: 10.3923/pjbs.2006.1787.1790
 
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Phytoplankton Diversity and Nutrients at the Jajerood River in Iran

Farzaneh Farahani, HananehKorehi , Shabnam Mollakarami , Soghra Skandari , Seyyed Ghasem Ghorbanzadeh Zaferani and Zahra Mallek Ciahe Shashm

Abstract:
Jajerood river is one of the freshwater river in Iran. Seasonal changes in phytoplankton composition and physico-chemical factors affecting these parameters were investigated in this study. Qualitative phytoplankton and nutrient analysis were carried out between 2005 and 2006 at 19 sampling stations of Jajerood, situated in the north-eastern of Tehran. A total of 53 taxa were determined, belonging to four algae classes: Bacillariophyceae, Chlorophyceae, Cyanophyceae and Dinophyceae. Bacillariphyceae appeared to be the dominant group in terms of total genus number during the study period. The number of phytoplankton genus was high in summer and quite low in winter. The highest phytoplankton diversity determined in summer was due to the increase in the numerical of Cymbella from the diatoms. Phytoplankton diversity declined to the lowest level in the winter. The lowest and highest concentration of NO3 and PO4 were 1.9 and 8.5 μg L-1 and 0.05 and 0.76 μg L-1, respectively.
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How to cite this article:

Farzaneh Farahani, HananehKorehi , Shabnam Mollakarami , Soghra Skandari , Seyyed Ghasem Ghorbanzadeh Zaferani and Zahra Mallek Ciahe Shashm , 2006. Phytoplankton Diversity and Nutrients at the Jajerood River in Iran. Pakistan Journal of Biological Sciences, 9: 1787-1790.

DOI: 10.3923/pjbs.2006.1787.1790

URL: https://scialert.net/abstract/?doi=pjbs.2006.1787.1790

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