Effects of agriculture, tourism and the dam on eutrophic status of the Zerebar Lake, Iran
Journal Title: International journal of Advanced Biological and Biomedical Research - Year 2013, Vol 1, Issue 4
Abstract
The Zerebar Lake is a shallow freshwater lake located in the northwestern Iran. The lake is surrounded by three human activities: agriculture, tourism and dam. The present study aimed to investigate (1) which human activity has the greatest impact on eutrophication of the Zerebar Lake (2) If phytoplankton communities, as the indicator, are correlated with the human activities. Water samples were collected from three selected sites (nearby three human activities) in the Lake every two months, from August 2010 to June 2011. Water variables and parameters of phytoplankton communities (distribution, abundance, biomass and diversity indices) were examined. Agricultural runoff had the main effect on eutrophication of the Lake and the dam deteriorated trophic condition by preventing removal of the nutrients. Although, phytoplankton diversity was affected by nutrients, especially phosphorous, phytoplankton biomass was likely affected by physical parameters, mainly light. The present study suggests that phytoplankton diversity indices are not good indicators for anthropogenic activities around the Lake. However, some phytoplankton genera were more suitable indicators of trophic condition of the lake than others.
Authors and Affiliations
Tahsin Rahmani | Department of Fisheries, Faculty of Natural resources, University of Tehran, Karaj PO Box 4111, Iran, Hadi Poorbagher| Department of Fisheries, Faculty of Natural resources, University of Tehran, Karaj PO Box 4111, Iran, Email: poorbagher@ut.ac.ir, Arash Javanshir| Department of Fisheries, Faculty of Natural resources, University of Tehran, Karaj PO Box 4111, Iran, Barzan Bahrami Kamangar| Department of Fisheries Sciences, Faculty of Natural Resources, University of Kurdistan, Sanandaj, 416, Iran
Keywords
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