Volume 2, Issue 3 (7-2013)                   2013, 2(3): 65-79 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Farhadian O, Heidari S, Sedaghat R, Mahboobi Soofiani N, Ebrahimi E, Asdollah S et al . Distribution, Abundance and Biodiversity of Phytoplankton from Hanna Dam Lake, Isfahan, Iran. Iranian Journal of Applied Ecology 2013; 2 (3) :65-79
URL: http://ijae.iut.ac.ir/article-1-238-en.html
Abstract:   (11726 Views)
Phytoplankton are the base of production in aquatic ecosystems and have a major importance in the freshwater environment both in terms of fundamental ecology and in relation to human use of natural resources. The purpose of this research was to determine distribution, abundance and biodiversity of phytoplankton community in Hanna Dam Lake, located in Isfahan province. The sampling was carried out in mid-season from 6 fixed stations during one-year period. Abundance ranges of diatoms, Chlorophyceae, Desmids, Dinophyceae, and Cyanophyceae were estimated 405-2395, 786-6778, 0-14, and 0-70 cells/mL in spring 1281-3879, 1987-4518, 13-173, 0-157, and 0-85 cells/mL in summer 593-1265, 1926-4980, 0-14, 0-51, and 0-37 cells/mL in autumn 48-264, 116-624, 0-13, 0-51, and 0-131 cells/mL in winter, respectively. Cyclotella, Cocconeis and Surirella from diatoms Chlorella, Oocystis , and Tetraedron from Chlorophyceae were dominant in spring. In summer, Cyclotella and Surirella from diatoms Mougeotia, Chlorella and Scenedesmus from Chlorophyceae Closterium from Desmids Prorocentrum from Dinophyceae and Chroococcus from Cyanophyceae were dominant. In autumn, the dominant genera were Cyclotella and Surirella from diatoms Mougeotia andChlorella from Chlorophyceae Closterium from desmids Ceratium from Dinophyceae Chroococcus from Cyanophyceae while in winter Cocconeis and Amphora from diatoms Chlorella and Tetraedron from Chlorophyceae Closterium from desmids Ceratium from Dinophyceae Tolypothrix from Cyanophyceae were dominant. The diversity indices of Simpson, Shannon-Wiener, and Margalef were obtained at ranges of 0.40-0.72, 1.23-2.29, and 0.95-1.59 in spring 0.59-0.77, 1.97-2.73, and 2.13-2.80 in summer 0.50-0.71, 1.56-2.31, and 0.96-1.82 in autumn 0.13-0.63, 0.27-1.42, and 0.10-0.97 in winter, respectively. The highest biodiversity was obtained during spring and summer. Our results showed that this lake could be classified as eutrophic lake based on water quality, abundance, composition and biodiversity of phytoplankton.
Full-Text [PDF 694 kb]   (3138 Downloads)    
Type of Study: Research | Subject: General

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | Iranian Journal of Applied Ecology

Designed & Developed by : Yektaweb