Determination of Mercury, Cadmium and Lead in muscle tissue of Otolithes ruber in Bushehr port

Subject Areas : Marine Biology

S. Z. Khalili Poor ¹ , M. R. Shafiee ² , M. Emtiazjoo ³

1 - Faculty of Marine Science and Technology, Islamic Azad University, North Tehran Branch
2 - Faculty of Marine Science and Technology, Islamic Azad University, North Tehran Branch
3 - Faculty of Marine Science and Technology, Islamic Azad University, North Tehran Branch

Received: 2010-07-04 Accepted : 2011-02-18 Published : 2011-03-19

Keywords: Heavy metals, Otolithes ruber, Atomic Absorption Spectrophotometer, Bushehr port,

Abstract :

In this study, the concentration of Mercury, Cadmium and Lead were quantified in the muscle tissue of Otolithes ruber from Bandargah, Bushehr Province. The aim of this study is to evaluate potential risks to human health associated with sea food consumption. 18 samples of Otolithes ruber were taken in summer and winter of 2009, from fishers of Bandargah. After digestion of the muscle tissue, the samples were analyzed using Atomic Absorption Spectrophotometer. Data analysis was performed using SPSS V.17. The mean concentration of Mercury, Cadmium and Lead were 0.0689±0.0062, 0.0100±0.0011 and 0.0558±0.0032 µg g-1wet weights, respectively. A positive correlation between the metal concentrations and length and weight of the fishes were observed, except for Lead. No significant difference between the metal concentrations and the seasons were observed. The concentration of metals in the muscle tissue of Otolithes ruber were all lower than the maximum allowable concentrations and pose no threat to public health. The order of heavy metal accumulation was : Hg>Pb>Cd. There was significant difference between the Lead concentration and the sex of the fishes. The result of this study was compared to other studies made by different researchers.   style='font-size:13.0pt;line-height:115%; mso-bidi-font-family:"B Nazanin"'>P≥ مشاهده نگردید. همچنین غلظت فلزات سنگین در بافت عضله­ی ماهی شوریده در فصل زمستان و تابستان دارای اختلاف معنی داری نمی باشد و نیز تجمع فلز سرب در ماهیان جنس نر و ماده دارای تفاوت معنی داری بود. غلظت فلزات اندازه­گیری شده در عضله­ی ماهی شوریده از حد مجاز سازمان بهداشت جهانی کمتر بوده و ترتیب تجمع فلزات مورد بررسی در عضله­ی این ماهی به صورت  Hg>Pb>Cd می باشد.