Effects of agriculture, tourism and the dam on eutrophic status of the Zerebar Lake, Iran
سال انتشار: 1392
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 589
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شناسه ملی سند علمی:
JR_IJABBR-1-4_009
تاریخ نمایه سازی: 26 اسفند 1394
چکیده مقاله:
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 theLake 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 damdeteriorated 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 phytoplanktondiversity 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
کلیدواژه ها:
نویسندگان
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.
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.