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Environmental Studies of Persian Gulf
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Volume Volume 2 (2015)
Issue Issue 1
Volume Volume 1 (2014)
Farhadian, O., Pouladi, M., Vazirizadeh, A., Sedaghat, R. (2015). A Study of Diatoms Seasonal Distribution and Biodiversity in Helleh River Estuary, Persian Gulf. Environmental Studies of Persian Gulf, 2(1), 32-44.
Omidvar Farhadian; Mojtaba Pouladi; Amir Vazirizadeh; Roya Sedaghat. "A Study of Diatoms Seasonal Distribution and Biodiversity in Helleh River Estuary, Persian Gulf". Environmental Studies of Persian Gulf, 2, 1, 2015, 32-44.
Farhadian, O., Pouladi, M., Vazirizadeh, A., Sedaghat, R. (2015). 'A Study of Diatoms Seasonal Distribution and Biodiversity in Helleh River Estuary, Persian Gulf', Environmental Studies of Persian Gulf, 2(1), pp. 32-44.
Farhadian, O., Pouladi, M., Vazirizadeh, A., Sedaghat, R. A Study of Diatoms Seasonal Distribution and Biodiversity in Helleh River Estuary, Persian Gulf. Environmental Studies of Persian Gulf, 2015; 2(1): 32-44.

A Study of Diatoms Seasonal Distribution and Biodiversity in Helleh River Estuary, Persian Gulf

Article 4, Volume 2, Issue 1, Summer and Autumn 2015, Page 32-44  XML PDF (4016 K)
Document Type: Research Paper
Authors
Omidvar Farhadian 1; Mojtaba Pouladi2; Amir Vazirizadeh3; Roya Sedaghat2
1Department of Natural Resources, Isfahan University of Technology, Isfahan, Iran.
2Department of Natural Resources, Isfahan University of Technology, Isfahan, Iran
3Persian Gulf Research Institute, Persian Gulf University, Bushehr, Iran.
Abstract
The purpose of this study was to investigate the distribution and biodiversity of diatoms during different seasons and their correlation with water quality parameters in Helleh River estuary, Bushehr, Persian Gulf. Samples were taken in mid-season from summer 2011 to spring 2012 during a one-year period from different stations. Results showed that diatoms mostly comprised of Bacillariophyceae, Dictyochophyceae and Chrysophyceae. The class of Bacillariophyceae had the highest seasonal variation with 20 genera. The mean of diatom density obtained was 5705.8 cells l-1 in summer; 6772.5 cells l-1 in autumn; 4072.9 cells l-1 in winter; 8559.36 cells l-1 in spring. The mean of biodiversity Index of Shannon-Wiener obtained was 2.29, 2.22, 1.49 and 1.63 in summer, fall, winter and spring, respectively. In addition, there was a significant correlation between diatom density, salinity (r= 0.469) and pH (r=0.599). The Shannon-Weiner diversity index showed significant correlation with salinity (r = 0.796), dissolved oxygen (r =-0.533) and temperature (r = 0.447).
Keywords
Diatom; Distribution; Biodiversity; Helleh Estuary; Bushehr; Persian Gulf
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