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
Related Articles
- EP ID EP12821
- DOI -
- Views 388
- Downloads 21
Evaluation of genetic variations in thirteen Iranian, German false chamomile populations using peroxidase isozyme bands pattern
Chamomile serves as one of the most important medicinal plants. The most known secondary metabolites in chamomile species are volatile oils of triponoides, poly stilens, flavonoids and phenolic cafeic acid (Krori). The...
Evaluation of Yield and Advantage Indices of Maize (Zea Mayz L.) and Faba Bean (Vicia Faba L.) Intercropping Systems
Objective: For investigation of intercropping of maize and faba bean, an experiment was conducted in Research Station of Agriculture Faculty of Tabriz University during growing season of 2013. Methods: Experimental des...
Codifying a proper mathematical model for predicting the replace age of the tractors used in Shahid Beheshti Cultivation Firm of Dezfoul
Predicting the maintenance and management costs and replacement age of tractors in agricultural mechanized units, is important from several points. So, doing a timely agricultural operations, more accurate measure of t...
Investigation of Plants Purification Capability of Cu on Two Cultivars of Mung Bean Plants in Contaminated Soils
Objective: To study plants purification capability of Cu on two cultivars of vetch plant (Vigna Radiata) in contaminated soils and their effects on morphological characteristics. Methods: we conducted a completely rand...
Identifying Mechanisms Influencing Development of Water Users Associations in Agriculture Sector
In the current situation, one of the most important issues of dry and semidry areas is the lack of water sources. In this regard, it's necessary to thank of solutions in order to increase productivity and efficiency of w...