Study of plankton communities and quality of Band Ali Khan wetland

Subject Areas : environmental management

Parisa Nejatkhah Manavi ¹ , Mohammad Mahdavi ² , Maryam Frozad ³

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Received: 2007-08-01 Accepted : 2008-01-24 Published : 2010-04-03

Keywords: COD, Planktons, Oxygen increased, BOD5, Band Ali Khan wetland,

Abstract :

In this research, the quality of water of Band Ali khan wetland, phytoplankton, zooplankton and also some factors such as BOD5, COD, DO were measured seasonally during the year 2005-2006. Results showed in this wetland 3 groups of fresh water phytoplanktons were recognized which were included Bacillariophyceae with 11 genus, Cyanophyceae with 3 genus, Euglenophyceae with one genus. Navicula had the biggest plenty and Euglena had the least. Also 4 genus of zooplankton including Crustacea with two genuses, Rotifer and Cilliata with one genus were recognized. The biggest plenty of zooplankton belonged to Vorticella and the least was Daphnia. The results showed that concentration of water pollutant has reduced significantly in outlet of wetland. Decreasing of concentration of pollutant was 92 % for BOD5 and 94 % for COD. Also the concentration level of dissolved oxygen increased up to 85% in the end part of wetland compared to the entrance of it. Concentration of planktons in the end part of the wetland showed increment compared to the entrance.