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Articles by S.M.R. Fatemi
Total Records ( 5 ) for S.M.R. Fatemi
  S.A. Hosseini , S. Jamili , T. Valinassab , G. Vosoghi and S.M.R. Fatemi
  This study, being conducted in 2006-2007, attempts to investigate its biological habit and characteristics in Iran`s water of the Persian Gulf. For the sampling purpose, three major landings namely Bushehr, Deylam and Genaveh were selected to obtain samples from commercial catches. The sampling is composed of 655 males and 515 females during a twelve month period. By studying the feeding through the counting method, it is revealed that, Liza subviridis characterized by 42.8% and Sepia pharaonis by 8.4% made the highest and lowest stomach content, respectively. The findings showed that male fish in smaller size will mature sooner than females specimen but this sex ratio or proportion was not significantly different except during October and September. Such a difference between male and female in different months could be originated from longer residing of female group in spawning ground compared to male group. The earlier spawning lasted during September-October and there was a peak of spawning in feeding in August. The lowest fat proportion for both male and female genders was reported 0.10 and 0.11, respectively in October; but the highest level of condition factor was reported to be 0.59 and 0.63 during November and June.
  L.S. Kavan , S.R. Gilkolaei , G. Vossoughi , S.M.R. Fatemi , R. Safari and S. Jamili
  The genetic diversity and population structure of Rutilus frisii kutum from three regions in the Iranian coastline and one region from Azerbaijan were investigated using microsatellite DNA markers. Genomic DNA from 140 specimens was extracted and using PCR approach nine loci with reasonable polymorphism were amplified. The results showed that the lowest mean number of alleles per locus (5.22) was observed in Tonekabon River and the highest (5.77) in Azerbaijan population. The observed heterozygosity in the Tonekabon River (0.625) population was higher than those of the other two populations in Iran and Azerbaijan population (0.473). Significant deviations from HWE were found at more loci in the Iranian populations than Azeri population. In spite of geographical distance, both the highest and lowest population differentiation (Fst) value was between Iranian populations not among the Iranian and Azerbaijan populations. The highest and significant was between Khoshkrud and Tonekabon (0.098) and the lowest and significant was between Khoshkrud and Gorganrud (0.062). The genetic distance was the lowest (0.27) between the Khoshkrud and Gorganrud populations, whereas the highest distance (0.493) was between Khoshkrud and Tonekabon River.The AMOVA analysis with consideration of 2 sampling regions (Iran and Azerbaijan) and 4 sampling locations (Iran: Khoshkrud, Tonekabon, Gorganrud and Azerbaijan: the Kura mouth) revealed that almost all of the variance in data namely 86% (p = 0.01) was within locations, genetic variances among locations was 12% (p = 0.01) and among regions was 2% (p = 0.01). The reported results could be of interest for management and conservation programmes of this species in the Caspian Sea.
  M. Norouzi , M. Pourkazemi , A. Keyvan , S.M.R. Fatemi and B. Kazemi
  In this study, 197 samples of adult stellate sturgeon from four fishery regions were collected. DNA was extracted using 15 pairs of microsatellite primers, Polymerase Chain Reaction (PCR) was conducted. DNA bands were analyzed using Biocapt and GenAlex software package. Out of 15 microsatellite primers, 11 loci were produced, in which 10 of them were polymorphic and 1 monomorph. Analyses revealed that average of 13 alleles per locus (range 8 to 18 alleles per locus). Average observed and expected heterozygosity were 0.650 and 0.855 and significant genetic differences between 4 regions were observed (p≤0.01). Deviations from Hardy-Weinberg equilibrium were in most cases. Maximum genetic difference were observed between regions 2 and 4 (FST = 0.063, Nm = 3.728). These results indicate that at least, 3 populations of stellate sturgeon exist in the South Caspian Sea. Population of stellate sturgeon in region 2 where Sefidrud drainage is located was consider as independent population, therefore management of this unique stocks for restocking and conservation of gene pools is highly recommended.
  B. Moghaddasi , S.M.B. Nabavi , G. Vosoughi , S.M.R. Fatemi and S. Jamili
  Abundance and distribution of benthic Foraminifera, in the Northern Oman Sea (Iranian side) continental shelf sediments was studied. Sediment samples were gathered in Winter 2006, from eight stations ranging in depth from 30 to 103 m. Environmental conditions including water depth, temperature, dissolved oxygen, salinity, pH, grain size, total organic matter and calcium carbonate concentration were measured and their relationship with the distribution of benthic foraminifera was discussed. Forams were the most abundant meiobenthic group in nearby all the stations. The suborder ROTALIINA was dominant in the northern region while LAGENINA, MILIOLINA and TEXTULARIINA, were being abundant in the northwest region too. LAGENINA were being very abundant in the stations with higher depth. From the total 40 species belonging to 24 genera, Ammonia beccarii was common in the whole research region. Water depth, salinity and substrate seemed to be the most important environmental factors controlling the distribution of benthic foraminifera. None or rare structural abnormal and oil polluted individuals, in nearby all stations, leading to the clean benthic environment of the Oman Sea benthic zone.
  M. Gholami , S.M.R. Fatemi , M. Falahi , A. Esmaili and A. Mashinchiyan
  In this survey, the individual and mixed effects of heavy metals such as copper and cadmium and detergent (LAS) on 1 g white fish Fry (Rutilus frisii Kutum) were studied with 6 treatments and one blank in 3 replications using OECD method in the laboratory and concentration limits were determined with logarithmic method for Cadmium (0.1-0.5), copper (1-5) and LAS (10-19) mg L-1. Finally, the achieved results were calculated with Probit analysis and Correlation coefficient was regarded for Cadmium 0.93, copper 0.92 and LAS 0.98 and in mixture of Cadmium and LAS 0.93 and mixture of copper and LAS 0.98. The amounts of LC10, LC50 and LC90 and permissible limits of above mentioned pollutants were calculated too. Copper effect on white fish fry caused LC10 = 1.83, LC50 = 4.02, LC90 = 8.79 Cadmium effect caused LC10 = 0.11, LC50 = 0.21, LC90 = 0.34; LAS caused LC10 = 5.91, LC50 = 11.62, LC90 = 22.71; mixture of LAS and Cadmium caused LC10 = 0.017, LC50 = 0.047, LC90 = 0.12; mixture of LAS and copper caused LC10 = 0.02, LC50 = 0.09, LC90 = 0.37. Hierarchically, the amounts of pollutants permissible limits for Cadmium effect on white fish fry were 0.021, for copper 0.4, for LAS 1.16 and mixture of Cadmium and LAS 0.004 and mixture of LAS and copper 0.009.
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