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 پایگاه استنادی علوم جهان اسلام (ISC)

پایگاه اطلاعات جهاد دانشگاهی (SID) 

بانک نشریات کشور (مگیران)




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:: Volume 9, Issue 3 (2010) ::
IJFS 2010, 9 Back to browse issues page
Seasonal and regional distribution of phytoplankton in the southern Caspian Sea
A. Ganjian * , W. O. Wan Maznah , K. Yahya , H. Fazli , M. Vahedi , A. Roohi , S. M. V. Farabi
, aganjian2002@yahoo.com
Abstract:   (23364 Views)

 Seasonal distribution of species composition, cell abundance and biomass of phytoplankton of the Caspian Sea were investigated in 2005. This survey were fulfilled in 6 transects and 26 stations A total of 260 samples were collected during winter to autumn in the southern part of Caspian Sea. Totally, 163 species of phytoplankton were identified (71 species Bacillariophyta, 31 species Chlorophyta, 27 species Cyanophyta, 21 species Pyrrophyta, and 13 species Euglenophyta). Cell abundance and biomass of Bacillariophyta were high in centre, while biomass and cell abundance of Pyrrophyta were dominant in the middle as well as parts of the Sea, respectively. The overall total average of cell abundance and biomass of phytoplankton were 56.30± 30.97 ×106cells/m3 and 221.70±75.87 mg/m3, respectively. Bacillariophyta accounted for 47% in cell abundance, and Pyrrophyta consisted of 53% of the phytoplankton biomass. Maximum phytoplankton population was recorded in winter due to Bacillariophyta and the maximum biomass in spring due to Pyrrophyta. The maximum density of Bacillariophyta was in winter and autumn while maximum biomass was observed in spring due to bigger size of Bacillariophyta such as Rhizosolenia calcar avis and Nitzschia sigmoidea followed by Pyrrophyta with high cell abundance throughout the year.

Keywords: Phytoplankton, Seasonal distribution, Biomass, Cell abundance, Caspian Sea
Full-Text [PDF 471 kb]   (5449 Downloads)    
Type of Study: Orginal research papers | Subject: Ecology
Received: 2010/08/3 | Accepted: 2015/09/13 | Published: 2015/09/13
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Ganjian A, Wan Maznah W O, Yahya K, Fazli H, Vahedi M, Roohi A et al . Seasonal and regional distribution of phytoplankton in the southern Caspian Sea. IJFS 2010; 9 (3) :382-401
URL: http://jifro.ir/article-1-55-en.html

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Volume 9, Issue 3 (2010) Back to browse issues page
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
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