A. Mashinchian Moradi; A. H. Dashti; M. R. Fatemi; P. Aberoumand Azar
Volume 2, Issue 2 , June 2012, , Pages 171-176
Abstract
Tracking and determining the amount and types of urban sewage that is being releasing to the environment is important in planning for wastewater treatment systems and water quality control. In this research, in four stations of Anzali Lagoon, (by means of a gas chromatograph device with mass ...
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Tracking and determining the amount and types of urban sewage that is being releasing to the environment is important in planning for wastewater treatment systems and water quality control. In this research, in four stations of Anzali Lagoon, (by means of a gas chromatograph device with mass detector spectrometer) wastewater pollution has been measured and evaluated with molecular indicator Linear Alkyl Benzene(LABs) in bivalve “Anodonta cygnea”. Average concentrations of LABs were calculated 520 μg/kg dry weight in samples of station 1, 1245 in station 2, 2144 in station 3, and 1746 in station 4. Results from this study indicate severe LABs pollution in studied stations in Anzali Lagoon’s sugesing that urban wastewater has reached these stations.
A. Mashinchian Moradi; M. Jalali Mosallam; M. R. Fatemi
Volume 1, Issue 1 , December 2011, , Pages 51-58
Abstract
In this study, the amount of nickel and vanadium elements in the soft tissues of rock oysters (Saccostrea
cuculata) and sea water from coastal areas of Qeshm Island, the biggest island of Persian Gulf located in the south of Iran, were measured to evaluate the contamination of the aquatic environment ...
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In this study, the amount of nickel and vanadium elements in the soft tissues of rock oysters (Saccostrea
cuculata) and sea water from coastal areas of Qeshm Island, the biggest island of Persian Gulf located in the south of Iran, were measured to evaluate the contamination of the aquatic environment and organisms. Following the bioassay, weighing and chemical digestion of the samples, finally the amount of nickel and vanadium in the soft tissues of the oysters and sea water samples were measured via the ICP system. The results indicated that the average concentration of nickel and vanadium found in the sea water were respectively: 15.7 and 37.9 micro grams per liter and in the soft tissues of oyster: 2.44 and 1.91 mg per kg respectively. In comparison with the FDA and WHO standards, only the concentration of nickel in the soft tissues of oysters was in a permitted level, and the rest exceeded the permitted levels. The average concentration of metals in the north side of the island were more than that found in south of the island but
this difference was not statistically significant (p> 0.05).
P. Ghavam Mostafavi; Sh. Shahnavaz; M. Noroozi; M. R. Fatemi; M. H. Shahhosseiny; A. Mahvari
Volume 1, Issue 1 , December 2011, , Pages 69-73
Abstract
Nuclear markers such as microsatellites have allowed the identification of conservation and management populations of the Hawksbill turtles. In present study, eight microsatellite loci were studied. 60 samples of hawksbill turtles. flipper from Shidvar and Hormuz Islands have been surgically removed ...
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Nuclear markers such as microsatellites have allowed the identification of conservation and management populations of the Hawksbill turtles. In present study, eight microsatellite loci were studied. 60 samples of hawksbill turtles. flipper from Shidvar and Hormuz Islands have been surgically removed and preserved in 20% DMSO buffer. DNA was extracted using DNP KIT and amplified by PCR methods. The average number of alleles in Shidvar and Hormoz were 7 and 7.37 respectively with range of 7-13. The average expected and observed heterozygosity was 0.77 and 0.46 respectively. The linkage disequilibrium and deviations from Hardy-Weinberg equilibrium have been tested. The Fst values was 0.048, showing a significant difference between the two sites (P<0.01). The genetic distance between populations was found to be 0.27, which indicates that the genetic difference among the studied populations is pronounced. These results together with highly significant RST of genotypic differences between these pairs of samples support the existence of different genetic populations of Eretmochelys imbricata within the Iranian Islands of the Persian Gulf.