Toxic and essential trace elements bio-accumulation in muscles and shells of crab, (Potamon persicum) in Kakareza River, Lorestan, Iran

The present study was carried out to investigate accumulation of eleven toxic and essential trace elements in muscle and shell of Potamon persicum from Kakareza River in Lorestan Province (Iran) collected in summer and autumn, 2011. The elements levels were analyzed by Perkin Elmer 4100 Zl atomic absorption and data were analyzed statistically using one-way ANOVA and Duncan’s test by SPSS17. The results showed that the highest and lowest concentration of Hg, Cd, As, Fe, Co and P were in shell collected in autumn and muscle collected in summer, respectively. Also, the highest and lowest concentration of Pb, Zn, Ca and K were observed in shell collected in summer and muscle collected in autumn, respectively. The highest and lowest Cu concentration was measured in the shell and muscle of P. persicum collected in summer, respectively. Concentration of Hg, Cd, As, Pb, Zn, Cu, Fe, Co, Ca, K and P in the shell of P. persicum were higher than the muscle both in summer and autumn. According to the results, concentration of as and Cd in P. persicum muscle were higher than WHO standard limits, while concentration of Hg and Pb were still lower than that limitation

The comparison of heavy metals Hg, Cd and Pb in the tissues of Liza abu from Karoon and Bahmanshir Rivers, Khuzestan Province

A comparative study was conducted on concentration of heavy metals Hg, Cd and Pb in the muscle, liver and gill tissues of Liza abu in winter 2009, in Karoon and Bahmanshir Rivers of Khuzestan province. We used 216 specimens of Liza abu. Metals were extracted from the tissues using wet digestion method and concentration of the heavy metals was measured by Atomic Absorption Spectrophotometer. The highest concentration of Cd, Hg and Pb were measured at 0.540±0.264, 0.029±0.005 and 1.080±0.128mg/Kg dry weight respectively. The lowest concentration of Cd, Hg and Pb were found to be 0.434±0.035, 0.024±0.001 and 0.930±0.036mg/Kg dry weight, respectively. No significant differences in concentration of heavy metals Cd, Hg and Pb in the muscle, liver and gill of Liza abu from the Karoon and Bahmanshir Rivers were detected (P 0.05). Results showed accumulation of Hg and Cd was lower than the FDA standard but accumulation of Pb was higher than the WHO standard

The comparison of heavy metals (Hg, Cd, Pb) in the muscle of Otolithes ruber in Abadan and Bandar Abbas Ports, the Persian Gulf

A comparative study was conducted on concentration of heavy metals including: Hg, Cd and Pb in the muscle of Otolithes ruber in Abadan and Bandar Abbas Ports in the Persian Gulf. In this study, a total of 42 specimens of Otolithes ruber were collected from coastal waters of Abadan and Bandar Abbas Ports in 2010. Heavy metals were extracted from the muscle tissues using wet digestion method and concentration of metals were measured by Atomic Absorption Spectrophotometer. The results showed that mean (±SD) accumulation of Hg, Cd and Pb in the muscles of Otolithes ruber in Bandar Abbas were 0.058±0.001, 0.279±0.056 and 0.668±0.077mgKg-1 wet weight, and in Abadan were 0.056±0.007, 0.25±0.038 and 0.638±0.087mgKg-1 wet weight respectively. No significant differences were found in concentrations of Hg, Cd and Pb in the muscle of Otolithes ruber between Abadan and Bandar Abbas ports. Accumulation of these metals were higher in the muscle of Otolithes ruber than that Bandar Abbas Port. Concentration of Hg in the muscle of Otolithes ruber was lower than acceptable limit suggested by WHO, MAFF, NHMRC. However concentrations of Pb and Cd were higher

Risk assessment to consumers from mercury in Acanthopagrus latus

This study aimed to investigate the concentration of mercury in Acanthopagrus latus of Bahmanshir River using atomic absorption spectrophotometer and also to estimate the consequent health hazard. For this purpose, 30 samples of fish were prepared from Choebdeh seaport. The average concentration of mercury of Acanthopagrus latus was 0.24±0.08 mg/Kg of fresh wet weight of muscle. The results showed that average concentration of mercury in muscle of Acanthopagrus latus was less than the international organizations standards. According to Statistical Yearbook of Iran Fisheries Organization, the calculations indicated that daily and weekly mercury uptake for the adult Iranian consumers (70 Kg), was 0.000085 mg/Kg/day and 0.000595 mg/Kg/weekly. In addition, it was revealed that HQ index for Acanthopagrus latus was 0.85 which was estimated below 1. Accordingly, maximum daily intake of fish contaminated with 0.24 mg mercury/Kg wet weight for a 70 Kg person was estimated at 29 g/day and 203 g/wee

Accumulation of Mercury, Cadmium, Tin, Nickel, iron and Zinc in canned tuna from Khuzestan Province

Toxicity of heavy metals has led to numerous studies on the accumulation of these elements in fish and fishery products such as canned products. The objective of the present study was to determine the concentrations of Hg, Cd, Sn, Zn, Ni, Fe in canned tuna fish from of Khuzestan Provinces. A total number of 54 tuna fish cans from three brands (A, B and C) was collected from Ahvaz retails. The samples were subjected to dry digestion and the concentrations of the heavy metals were measured using Atomic Absorption Spectrophotometer Perkin Elmer 4100. In this study, no significant difference was observed between the concentrations of heavy metals in three various samples (P>0.05). The mean concentrations of Hg, Cd, Ni Sn, Zn and Fe in group C samples were determined at 0.048±0.007, 0.297±0.053, 0.171±0.031, 0.062±0.012, 5.36±0.82, 7.63±0.04 mg/Kg. Moreover, the highest level of Cd, Ni and Fe concentrations was observed in group C samples. In comparison with WHO, FAO and FDA standards, concentration of Ni, Sn, Hg and Zn was found lower. Meanwhile, the concentration of Cd was estimated higher than WHO, NHMRC and UKMAFF limits

A study on the relationship of arsenic accumulation with protein, lipid, ash and moisture contents in muscle of eight species of fish in Iran

A comparative study was conducted to investigate a relationship between concentration of arsenic with protein, lipid, ash and moisture content in Cyprinus carpio, Oncorhynchus mykiss, Aristichthys nobilis, Hypophthalmichthys molitrix, Ctenopharyngodon idella, Scomberomorus commerson, Scomberomorus guttatus and Otolithes ruber. A total of 72 sample of common carp, Bighead carp, silver carp and grass carp fishing from Azadegan fish farming center, Ahvaz; Rainbow trout from Cheshme Dimeh and Scomberomorus commerson, Scomberomorus guttatus and Otolithes ruber caught with gill netfrom Hendijan. Wet-digestion method was performed prior to arsenic determination in the samples. The level of arsenic was measured by atomic absorption spectrophotometer. The results showed that concentration of arsenic in the muscle of fishes was 269.87 ± 20.96 µg/Kg. Moreover, levels of protein, lipid, ash and moisture in the samples were estimated at 19.67±0.78 g/100, 2.45±0.45 g/100, 1.49±0.23 g/100, 78±1.89 g/100, respectively. Results also showed a positive correlation between the accumulation of arsenic in muscle of fishes with levels of protein, lipid, ash and moisture (

Bioaccumulation Lead and Zinc metals in the liver and muscle of Cyprinus carpio, Rutilus frisii kuttom and Liza auratus

The aim of this study was to determine Lead and Zinc contamination in the muscle and liver tissues of Cyprinus carpio, Liza auratus and Rutilus frisii kuttom in 2010. Thirty six samples were obtained randomly from Tehran Sarcheshmeh market. According to the results, the mean concentrations of Pb and Zn in the liver and muscles samples were 2.19±0.58 143.86±12.61 mg/Kg, respectively. This indicated a significant (

Effect of vacuum packaging on the shelf-life and quality of Hypophthalmichthys molitrix fillets during storage in refrigerator temperature

Vacuum packaging is one of the appropriate methods in packaging and storage of fish products. In this study, chemical changes including pH, thiobarbituric acid (TBA), total volatile basic nitrogen (TVN) and microbial counts such as coliform bacteria, fecal coliform, salmonella and Escherichia coli in vacuum packed fillet of silver carp (Hypophthalmichthys molitrix) was performed during 30 days storage at 4 ± 1 °C. Fresh silver carp fish samples (ranged 900 to 1200 g) were obtained and transported to the laboratory. Data were analyzed using SPSS 18 software. Results showed that the highest levels of TVN and pH were determined as 63.33 ± 1.82 mg/100 g and 6.81 ± 0.04 in the day 30, respectively. According to the results, TBA, TVN and pH values were increased during 30 days storage. Moreover, total bacterial count increased during the 30 days of storage. Results revealed that coliform counts were less than 2 log cfu/g during the 30 days of storage. Increasing trend of faecal coliform at the end of storage period was estimated as 2.38±0.01 log cfu/g. Considering the microbial populations and the chemical spoilage indicators (TBA and TVN), the shelf life of 15 days was established for the vacuum packaged fillet stored at 4±1°C

Association of Mercury, Cadmium and Arsenic bioaccumulation with the chemical compositions of Liza auratus muscle in Anzali Wetland

This study aimed to evaluate protein, fat and ash contents as well as the concentrations of As, Hg and Cd in muscle tissues of Liza auratus cached from Anzali Wetland. Eighteen samples of Liza auratus were collected using gill net. Heavy metals were extracted using wet digestion method and the concentrations were measured by Atomic Absorption Spectrophotometer. Concentration of Hg, As and Cd in the muscle of mullet was 57.20±7.56, 97.29±13.27 and 200.80±31.39 µg/Kg. Moreover, the percentage (mean±SD) of protein, fat and ash in the muscle of the samples were determined as 17.69±0.42, 0.74±0.08 and 1.37±0.12%, respectively. The positive and significant relationship was observed between the concentration of Hg, As and Cd in the muscle of mullet (

ORIGINAL ARTICLE Determination of heavy metals in Liza abu from Karkheh and Bahmanshir Rivers in Khoozestan from Iran

Askary Sary, A., Velayatzadeh, M., Beheshti, M.: Determination of heavy metals in Liza abu from Karkheh and Bahmanshir Rivers in Khoozestan from Iran ABSTRACT Liza abu is a species of the Mugilidae family from rivers in Khoozestan Province of Iran. The present study was carried out to investigate contamination of heavy metals (Hg, Cd, Pb, Cu, Zn, Fe and Mn) in gill, liver and muscle in Liza abu from Karkheh and Bahmanshir rivers in Khoozestan, Iran, in winter 2010. Heavy metal levels in fish samples were analyzed by Perkin Elmer 4100 atomic absorption. The results show that the highest Hg, Cd, Pb, Cu, Mn, Zn and Fe concentrations in fish samples were 29.66, 518.66, 1057.66, 369.33, 696 µg/Kg/dw, 10.62, 13.26 mgKg -1 dw. The highest and lowest concentration of heavy metals in tissues was done gill and muscle of Liza abu. Also, concentrations of heavy metals (mean±SD) in muscle, liver and gill of Liza abu from Bahmanshir river were higher than in Liza abu from Karkheh river (P<0.05), except for concentration of Fe that in Liza abu from Karkheh river were higher than in Liza abu from Bahmanshir river (P<0.05). The mean estimated concentrations for Cd, Hg, Cu and Zn in the present study were lower the International Standards for these metals as declare by the World Health Organization (WHO), Environmental Protection Agency (EPA) and Food and Drug Administration (FDA), but Pb higher than FAO and FDA