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Articles by A. Eimanifar
Total Records ( 2 ) for A. Eimanifar
  A. Mohsenpour Azary , F. Mohebbi , A. Eimanifar , A. Javanmard and Agamaliyev F.Q. Aliyev
  Problem statement: Since there is no evidence to identify present species in the Bukan dam reservoir, therefore, this study was conducted to provide background for fisheries purposes. Approach: The abundance and species composition of ciliates were analyzed in the Bukan Dam reservoir (west Azerbaijan, Iran) from January to December 2007. Surface water samples were collected at monthly intervals at two different points, open water (Station 1, 3) and in the shallowest area of the reservoir (Station 2, 4) and examined for planktonic protozoa composition and density. Chlorophyll a was analyzed and a few ecological parameters such as dissolved oxygen, pH, turbidity and temperature were measured. Results: Totally 50 ciliates species were found in Bukan dam reservoir. Concerning the protozoa density, a high-density period was detected from January to April with a mean number of 2.86x103 cells.L-1 protozoa at Stations 1, 3 and 4.16x103 cells.L-1 protozoa at shallowest areas at stations 2, 4 thanks to disappear of phytoplankton in the winter. The summer development of protozoa was possible thanks to the development of bacteria and moderate metazooplankton densities due to the appearance of non-edible algae. The density of ciliates was low during the rest of the year. The mean number of organisms at the high-density period was approximately 4-fold more than that obtained during the low-density one. The ciliates occurring at the highest densities were Coleps tessellates, Paradileptus elephantinus, Zosterograptus labiatus, Cyclidium citrullus. Conclusion/Recommendations: It was concluded that ciliates density have important role for saprobic condition of Bukan reservoir. Therefore, it can be recommended to determine more effective parameters for density of ciliates and management policies must be programmed in order to improve ecological condition for this reservoir.
  T. Ebrahimi Gajoti , V. Haciyev , A. Javanshir , H. Nosrati , A. Razban Haghighi , A. Eimanifar and N. Stewart Jr.
  Problem statement: Plants associations differ in relation to environmental gradients. Therefore, it is necessary to study the interaction between ecological factors and vegetation. Approach: In this study vegetation and flora of Sutan-Chay Basin in Arasbaran was investigated using Braun Blanquet method as physiognomic floristic. Sampling of soil and vegetation was carried out by selecting areas with homogenous plant compositions. The surface area of releves was determined using Nested Plot method to obtain the Minimal area. Classification of releves was conducted based on the presence and cover percentage of species using cluster analysis and Jaccard index similarity. CCA was used to determine the relationship between the groups and ecological factors and the most important factors in separating the groups and distribution of the species. The classification of releves based on Jaccard’s similarity coefficient and cluster analysis showed 6 different groups. Results: Dendrogram of cluster analysis based on these methods showed six associations: Astragaleto aureus-Thymetum kotschyanus, Poeto bulbosa-Festucetum ovina, Carpinetum betulus ،Quercetum macranthera, Paliuretum spina-christii, Juniperetum foetidissima. Canonical Correspondence Analysis (CCA) was used to determine the most important environmental factors on plant groups. This method of multivariate showed that pH, TNV%, soil texture, clay percentage, altitude and aspects had higher effect on separation of plant groups, which had correlation with axes 1 and 2 of ordination. Conclusion: Among the environmental factors the altitude has most important effect on plants distribution. With understanding of relationship between ecological factors and plant associations in a given area, it is possible to apply the obtained results in management and revival of forestland and rangeland.
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