The study done to determine the concentration of MERCURY inedib let issues and vital Anzalipike (Esox Lucius)and Relationship between body length, age and sex of the fishby the concentration of MERCURY. A total of58fish samples were taken from both east and west of the Anzali wetland After weighing, sexing and biometric target tissues to determine the concentration of lead was prepared by the specific analysis of the MERCURY,(American Standard Method D6722) analyzed. MERCURY concentrations in different organs suggest that the spleen may behigh concentrations of MERCURYin the absorption and accumulation. The liver compared to other organs studied, the lowest concentration of MERCURYin the absorption and accumulation. Comparison of MERCURY concentrations in male and female pikeindicate that MERCURY concentrations depend on gender and agepike is in Anzali lagoon. MERCURY concentrations in pike and pickerel Anzali wetlandeast of the western part of the difference is not significant. Nocor relation between size, weight and age pike in Anzali wetland up take and accumulation of MERCURY in them there. Significant differences between thes exesin terms of the concentration of MERCURY infish tissues was observed (p>0.05), which reflects the impact of genderon the adsorption of MERCURYspecies understudy. Between East and West Pond Fish Twomajorindustries and even though accumulation of pollutants in the eastern part of the lagoon, there was no significant difference. MERCURY level sinpike Anzali Wetland permissible limit recommended by the FDA and WHO/FAO (1 PPM)was lower than the average concentrations inppb 37/322 musclepikesin Anzali wetland and limitations directive US EPA, dose of 2times per month throughoutthe entire body and sexuality permissible Bashd. brrsyeffectofmetallic MERCURYac cumulationin the liver, kidney, spleen and musclepike Anzali Wetland.

Background: This study aimed to determine the total MERCURY (T-Hg) concentration in the common Carp muscles (Cyprinus carpio) fish species and surface water where they are collected.Methods: The fish and water samples were collected from Azadegan Aquaculture complex in Khuzestan, Iran during November of 2011 and the concentration of T-Hg was determined by Direct MERCURY Analyzer-80.Results: The mean T-Hg concentration in Cyprinus carpio was 0.52±0.25 mg T-Hg/kg for wet weight fish tissue. Average T-Hg concentrations for water sample from tree point of the pond were 2.10±0.001 mg/kg, 2.12±0.003 mg/kg and 2.11±0.08 mg/kg correspondingly.Conclusion: The results demonstrated that the levels of T-Hg in fish tissues were lower than water samples which is below the standards for human health screening levels proposed by the WHO, FDA and EPA (for water samples) and that bioaccumulation of MERCURY did not occur in fish in this aquaculture complex.

Background and Objective: MERCURY (Hg) is considered as a global pollutant that is widely dispersed in the environment. Monitoring of total MERCURY (THg) concentration in the sediments without determination of organic MERCURY (OHg) and selenium (Se) is an unreliable approach to evaluate the precise toxicological effects of Hg. In the present study, concentrations of THg, OHg and Se in the surface sediments of the eastern and western parts of Anzali wetland were investigated. In addition, the correlation of THg and OHg with Se and total organic carbon were analyzed.Materials and Methods: Forty surface sediment samples were collected from the eastern and western parts of the wetland. Analysis of total and organic MERCURY in the sediment samples were done with Advanced MERCURY Analyzer and the concentration of selenium was measured using inductively coupled plasma atomic emission spectroscopy (ICP-OES).Results: The average concentrations of THg in the East and West wetlands were 109.53 and 68.39 ng/g dw, respectively. The average concentration of THg in the sediments of the eastern part of Anzali Wetland was significantly higher than that of the western part (P<0.001). The mean concentrations of OHg in East and West wetland were about 34.91 and 28.84 ng/g dw, respectively. There was no significant relationship. The ratio of OHg to THg showed significant differences in the two studied areas. The average concentrations of Se in East and West wetlands were 156.25 and 163.75 ng/g dw, respectively. There was a significant negative correlation between the concentration of selenium and organic MERCURY in sediments of the western part of wetland (P<0.05).Conclusion: The THg concentration in the sediments of Anzali wetland was lower in comparison to other studied regions of the world. However, the percentage of OHg in the Eastern and Western part of wetland was high. Therefore, bioavailability and TOXICITY of Hg would be high in the sediments and aquatic environment. In this study, in spite of high molar ratio of Se to THg, there was relatively high content of OHg. We recommend to measure the various Sespecies that are effectively bound to inorganic Hg and to determine the amount of Se and Hg in aquatic organisms.

Background: MERCURY (Hg) is a major environmental contaminant due to its global ubiquity, tendency to bioaccumulate, and TOXICITY in wildlife. MERCURY accumulation in wetlands threatens critical breeding and foraging habitats of many fish and wildlife species. In this study, MERCURY concentrations were detected in different tissues of pike.Methods: To achieve these purposes, 58 pikes (Esox lucius) were hunted from Anzali wetland. MERCURY concentration was analyzed by Advanced MERCURY Analyzer (Leco, AMA 254). T-test was used to determine any significant differences between muscle and liver samples.Results: The results revealed a significant difference (t=0.85) in MERCURY concentrations between the tissues, whereas no significant differences were found in MERCURY concentrations between pikes of different sexes.Conclusion: This study was conducted to evaluate the feasibility assessment to recognize bioindicatory index usage and to determine restricted standards to human consumption. Our data can contribute to the development of management programs for understanding the ecotoxicological status of Anzali wetland and can help determine restricted standards for human consumption.