Metal Contents in the Tissues of Lutjanus fulviflamma (Smith 1949) and Epinephelus tauvina (Forskål 1775) Collected from the Arabian Gulf

Ahmad, Shakeel; Al-Ghais, Saif M.

doi:10.1007/s001289900283

Cited by 8 publications

(5 citation statements)

References 20 publications

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“…Results indicated that, the heavy metals accumulate mainly in the gills and metabolic organs such as liver that stores metals to be detoxificated as its main function by production metallothionein. Similar observations were in agreement with Kargin & Erdem (1991); Zyadah (1995); Ahmed & Al-Ghais (1996); Adeyeye et al(1996); Shakweer & Abbas (1997); Ibrahim et al (1999 a&b); Ghanem (2006&2011) and Jovanovic et al (2011) whom reported that, the differences of heavy metals concentrations in the fish organ were related to their tendency of absorption and accumulation of heavy metals through epithelial, mucosal surface, gastrointestinal tract, metabolic organs with relation to their mode of living and feeding behaviour.…”

Section: Results and Discussion § Heavy Metals Determinationssupporting

confidence: 92%

Effect of Heavy Metals on Some Physiological Responses in Two Fish Species Inhabiting Mediterranean Sea Coast; Damietta Governorate, Egypt.

Ghanem

2014

Al-Azhar Bulletin of Science

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The present study aims to determine the concentrations of heavy metals: Cadmium, Copper, Iron, Nickel, Lead and Zinc in the two fish species, Sparus aurata and Diplodus sargus, (family: Sparidae) collected from the Mediterranean Sea Coast, Damietta Governorate, in order to: compare concentrations of metals in the different organs (gonads, kidney, liver, muscles, gills, skin and bones) and their effects on the physiological parameters (total proteins, total lipids, ASAT and ALAT) in the edible organs of these species. Results revealed that, the highest values of heavy metals in the different organs of S. aurata and D. sargus were recorded during summer. Although, the two species have the same behavior of feeding, S. aurata showed high values of the different metals than D. sargus. Biochemical analysis indicated devastating effects in metabolic parameters and enzymes activities in S. aurata than D. sargus. ANOVA (p> 0.05) showed significant differences between the different organs and metals. Also, biochemical parameters exhibited a significant increase between seasons and the different organs and a slight difference between the studied fishes.

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Section: Results and Discussion § Heavy Metals Determinationssupporting

confidence: 92%

Effect of Heavy Metals on Some Physiological Responses in Two Fish Species Inhabiting Mediterranean Sea Coast; Damietta Governorate, Egypt.

Ghanem

2014

Al-Azhar Bulletin of Science

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“…The mean mercury level in the different fish species in this research (0.15 μg g −1 w.w.) is higher than the mean mercury concentration in the Bahrain fish (0.08 μg g −1 w.w.; Madany et al 1996), but comparable with mercury levels in Flounder fish in Qatar (0.13-0.16 μg g −1 w.w.; Kureishy 1993), greasy grouper in Emirate (Ahmad and Al-Ghais 1996) and in different fish (Agah et al 2007;Khansari et al 2005;Parvaneh 1979) indicates that the mercury levels in this study cover the whole span of concentrations observed in the past, with, however, also much higher levels in this study.…”

Section: Comparison With Literature Datamentioning

confidence: 39%

Mercury accumulation in fish species from the Persian Gulf and in human hair from fishermen

Agah

Leermakers

Gao

et al. 2009

Environ Monit Assess

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Total and methylmercury concentrations were assessed in muscle and liver of 141 fish samples from the northern part of the Persian Gulf. All fish samples belonged to five different species: grunt, flathead, greasy grouper, tiger-tooth croaker, and silver pomfret. In addition, Hg and methylmercury were analyzed in scalp hair of 19 fishermen living in the same coastal stations of the Persian Gulf and consuming several fish meals a week. Total mercury concentrations in fish muscle and liver ranged from 0.01 to 1.35 microg g(-1) w.w. and from 0.02 to 1.30 microg g(-1) w.w., respectively. In fish muscle, 3% of the Hg concentrations were higher than 0.5 microg g(-1) w.w., which corresponds to the maximum acceptable WHO level, while 9% were in the range of polluted fish (between 0.3 and 0.5 microg g(-1) w.w.). The highest mercury concentrations in fish muscle were observed in flathead fish at Abadan (average of 0.68 microg g(-1) w.w.). Methylmercury fractions in fish muscle and liver amount to 34-99% (median 64%) and 24-70% (median 43%), respectively. The mean total Hg concentration in the fishermen's scalp hair amounted to 2.9 +/- 2.2 microg g(-1), with 68% in the form of methylmercury. Ninety-five percent of the Hg levels in the fishermen's hair were below 10 microg g(-1), which is the WHO warning limit. In addition, relationships between the mercury levels in hair, on the one hand, and exposure-related factors such as Hg levels in specific fish species, regional differences, and number of fish meals, on the other hand, are discussed. It appears that a significant correlation for example exists between Hg levels human hair and fish muscle or human hair and age and that mean mercury levels in fish muscle and human hair decreased from western (Abadan) to eastern (Abbas port) coastal sites.

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“…A review of relevant literature indicates that concentrations of cadmium, manganese, and nickel in Gulf region fish are reportedly below World Health Organization (WHO) levels of concern. ( 20‐24 ) Concentrations of zinc in the tissue of fish caught in the Gulf are generally low, ( 20,23,24 ) although skin concentrations can be high. ( 21,22 ) The most recent studies of mercury concentrations in domestically harvested UAE fish indicate levels below those of concern, ( 20,25 ) but observations from the previous decade have been higher.…”

Section: Foods and Contaminants Targeted For Analysismentioning

confidence: 99%

“…( 21,22 ) The most recent studies of mercury concentrations in domestically harvested UAE fish indicate levels below those of concern, ( 20,25 ) but observations from the previous decade have been higher. ( 23,24 ) In light of the variable historical reports of mercury levels in domestically harvested fish, this analysis targets methylmercury (the most toxic form of mercury) as representative of general chronic health risk associated with exposure to metals in seafood.…”

Section: Foods and Contaminants Targeted For Analysismentioning

confidence: 99%

Foodborne Exposure to Pesticides and Methylmercury in the United Arab Emirates

et al. 2011

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As part of a comprehensive environmental health strategic planning project initiated by the government of Abu Dhabi, we assessed potential dietary exposure in the United Arab Emirates (UAE) to methylmercury (in seafood) and pesticides (in fruits and vegetables) above international guideline levels. We present results for the UAE population by age, gender, and body mass index. Our results show very low daily risks of exposure to pesticides in fruits and vegetables at levels exceeding WHO guidelines even under the conservative assumption that no pesticides are removed during washing and food preparation. Thus, exposure to pesticides on fruits and vegetables does not appear to be a major public health concern in the UAE. The chances of exposure to methylmercury in seafood are much higher; our model estimates a mean 1 in 5 daily risk of exceeding the FAO/WHO provisional tolerable weekly intake. However, great caution should be used in interpreting these results, as we analyzed only the risks and not the substantial benefits of fish consumption. In fact, previous studies have demonstrated that exposure to the n-3 polyunsaturated fatty acids in fish can increase IQ in developing children, and it can substantially decrease the risk in adults of coronary heart disease and stroke. Further research is warranted to compare the risk of Me-Hg exposure from fish to the nutritional benefits of fish consumption in the UAE and to determine appropriate methods to communicate risk and benefit information to the UAE population.

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Metal Contents in the Tissues of Lutjanus fulviflamma (Smith 1949) and Epinephelus tauvina (Forskål 1775) Collected from the Arabian Gulf

Cited by 8 publications

References 20 publications

Effect of Heavy Metals on Some Physiological Responses in Two Fish Species Inhabiting Mediterranean Sea Coast; Damietta Governorate, Egypt.

Effect of Heavy Metals on Some Physiological Responses in Two Fish Species Inhabiting Mediterranean Sea Coast; Damietta Governorate, Egypt.

Mercury accumulation in fish species from the Persian Gulf and in human hair from fishermen

Foodborne Exposure to Pesticides and Methylmercury in the United Arab Emirates

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