Distribution of trace elements in tissues of two shrimp species from the Persian Gulf and roles of metallothionein in their redistribution

Pourang, Nima; Dennis, John

doi:10.1016/j.envint.2004.08.003

Cited by 66 publications

(47 citation statements)

References 56 publications

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“…Sometimes even contradictory results have been obtained from different researches. The relatively similar results have been reported by Pourang and Amini (2001) in the case of Penaeus merguiensis and Metapenaeus affinis from the Persian Gulf. Paez-Osuna and Tron-Mayen (1995) also observed sex-based differences in concentrations of Zn in some tissues of shrimp Penaeus californiensis.…”

Section: Accumulationsupporting

confidence: 90%

“…During the recent years some researchers have reported that some elements, taken up primarily by tissues of aquatic organisms are transported (translocated) to other tissues (Francesconi et al, 1993;Pourang and Amini, 2001). In general, the importance of these kinds of researches will be realized if it be taken into consideration that following the storage some toxic elements may move from inedible tissues to edible parts of the body.…”

Section: Introductionmentioning

confidence: 98%

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Distribution of heavy metals in Penaeus Semisulcatus from Persian Gulf and possible role of metallothionein in their redistribution during storage

Pourang

Dennis

Ghourchian

2005

Environ Monit Assess

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The study was conducted between January and December 2002. The main objective of this study was evaluation of effects of refrigerated storage duration on redistribution of three trace elements (Cd, Cu and Zn) in tissues (exoskeleton, abdominal muscle and hepatopancreas) of a shrimp species (Penaeus semisulcatus). Moreover, the possible roles of metallothionein (a kind of metalloprotein) in redistribution of the elements in tissues of the selected species were assessed. The specimens were sampled from northwestern part of the Persian Gulf. The concentrations of metals in the tissues were measured using Inductively Coupled Plasma-Optical Emission Spectrophotometer (ICP-OES). Metallothionein levels were determined by Differential Pulse Polarography (DPP) method. pH of the muscle samples was also measured in different stages. Different statistical methods were used for interpretation of the results. There were no size-dependent differences in metal contents of the species. The results were compared with specimens from other areas of the world and existing guidelines and limits. Concentrations of the metals in the muscle (0.103, 3.418 and 8.977 microg g(-1) wet weight in the case of Cd, Cu and Zn, respectively) samples were below the most guidelines for human consumption. The results were in general agreement with those obtained by some other researchers. There were highly significant differences between sexes in Zn and Cu contents. Levels of Zn in females were significantly higher than males. The reverse case observed for Cu. The highest mean Cu and Zn concentrations (15.939 and 43.394 microg g(-1) wet weight, respectively) were found in hepatopancreas samples, but the highest level of Cd (0.790 microg g(-1) wet weight) was observed in exoskeleton. There were significant differences between the fresh and refrigerated samples from accumulation of Cd and Zn in tissues point of view, which can be attributed to the metal binding properties of metallothioneins as well as their degradation during the storage.

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Section: Accumulationsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 98%

Distribution of heavy metals in Penaeus Semisulcatus from Persian Gulf and possible role of metallothionein in their redistribution during storage

Pourang

Dennis

Ghourchian

2005

Environ Monit Assess

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“…This is of concern, because heavy metals are accumulated in sediments and aquatic organisms, and may by transferred to man through the food chain. For this, the assessment of metal levels in aquatic organisms has become important for environmental and human health (Pourang and Dennis 2005) and this is especially the case in Mexico where, in spite of the public policies directed to safeguard the environment and human health, there is evidence of metal contamination of the marine coastal zone (Páez-Osuna and Ruiz-Fernández 1995a, b).…”

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confidence: 99%

Metal Content of the Gulf of California Blue Shrimp Litopenaeus stylirostris (Stimpson)

Frías-Espericueta

Izaguirre-Fierro

Valenzuela‐Quiñonez

et al. 2007

Bull Environ Contam Toxicol

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The blue shrimp Litopenaeus stylirostris is the main target species of the Gulf of California shrimping fleet, and its heavy metal content might be of concern for human health because of the increasing contamination of the Gulf. The Cd content of shrimp caught by commercial trawlers ranged from 0.38 to 1.05 microg/g and the mean value was significantly lower in the northern fishing grounds. Pb ranged from 3.19 to 9.59 microg/g and was significantly higher in the northern area. There were no significant geographic difference in the case of Cu and Zn (respective means = 25.4 and 57.8 microg/g). The mean values of all metals show that none is of particular concern for human health.

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“…Moreover, toxic heavy metals can accumulate in the body of marine organisms and transfer to human via the food chain and cause the potential health risk (Madany et al 1996;Pourang and Dennis 2005;Firat et al 2008). Thus, it is important to evaluate the heavy metal contents and monitor their accumulations in the marine environment and organisms for seafood safety and the health of consumers.…”

Section: Introductionmentioning

confidence: 99%

Heavy metal contamination in the marine organisms in Yantai coast, northern Yellow Sea of China

Zhang

Chen

et al. 2012

Ecotoxicology

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The port city of Yantai, in Shandong province China is located on Sishili Bay in the northern Yellow Sea. Intense human activity associated with urban sewage discharge, as well as industrial and maritime activities, have stressed the Sishili Bay coastal ecosystem with anthropogenic pollution. The aim of this study was to measure the levels of heavy metal in the sediment and marine organisms of economic value from various sites within Sishili Bay, and to evaluate the data in relation to the potential health risk on human consumers. For this purpose, sediment and wild shrimps and crab were collected from three areas (a total of 13 sampling sites) of the Yantai coast and analyzed for six heavy metals (Cu, Zn, Cr, Ni, Pb, and As). For comparison, the concentrations of the same heavy metals in seven kinds of mollusks obtained from local aquaculture were also determined. The findings showed that the concentrations of heavy metals in the sediment of Yantai coast followed the order Zn [ &Cr [ Cu & Ni & Pb [ As, and all were within the safe levels of national standard. However, the concentrations of the heavy metals varied significantly in the organism samples, indicating the different accumulative abilities of the species sampled. For the wild marine organisms, Pb concentrations in some shrimp and crab samples exceeded the standard limit of seafood safety criteria and As concentrations in all samples were over the limit. Moreover, the As levels in mollusks from aquaculture exceeded the limit of seafood standard criteria. These results indicated that the heavy metal levels in the marine organisms in the studied areas were moderate but unacceptable for As from the view of safety of seafood. Furthermore, it is very necessary and important to further study toxicological and ecological effect of As in the coast of northern Yellow sea to understand the potential for risk to human and environmental health.

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Distribution of trace elements in tissues of two shrimp species from the Persian Gulf and roles of metallothionein in their redistribution

Cited by 66 publications

References 56 publications

Distribution of heavy metals in Penaeus Semisulcatus from Persian Gulf and possible role of metallothionein in their redistribution during storage

Distribution of heavy metals in Penaeus Semisulcatus from Persian Gulf and possible role of metallothionein in their redistribution during storage

Metal Content of the Gulf of California Blue Shrimp Litopenaeus stylirostris (Stimpson)

Heavy metal contamination in the marine organisms in Yantai coast, northern Yellow Sea of China

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