The relationships between heavy metals (As, Cd, Cu, Zn, Pb, Hg, Ni) levels and the size of pharaoh cuttlefish (Sepia pharaonis) from Persian Gulf
- سال انتشار: 1397
- محل انتشار: مجله علوم شیلات ایران، دوره: 17، شماره: 2
- کد COI اختصاصی: JR_JIFRO-17-2_002
- زبان مقاله: انگلیسی
- تعداد مشاهده: 155
نویسندگان
Department of Fisheries, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
Iranian Fisheries Sciences Research Institute, Agricultural Research, Education and Extension Organization, Tehran, Iran.
Department of Fisheries, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
Department of Fisheries, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
چکیده
Concentrations of both essential (Zn and Cu) and non- essential (As, Cd, Pb, Hg, Ni) metals were measured in the organs (mantle, branchial hearts, gill and digestive gland) of Sepia pharaonis captured in the coastal waters of Bushehr Province in the Persian Gulf (Iran). The relationships between S. pharaonis size (mantle length) and metal concentrations in tissues were investigated by linear regression analysis. Metal concentrations (As µg g-۱ d.w.) was highest in the digestive gland and lowest in the mantle of S. pharaonis, except for Ni. The concentrations of metals were found to follow the order: Zn> Cu> Pb> Ni> Hg> Cd> As. The mean Zn concentrations ranged from ۳۷.۷۲± ۵.۳۲ to ۹.۳۲± ۳.۷۳ µg g-۱ d.w, whereas the mean As concentrations ranged from ۰.۰۱± ۰.۰۰۷ to ۰.۰۶± ۰.۰۵ µg g-۱ d.w, respectively. Results of linear regression analysis showed that significant relationships between metal concentrations and fish size were positive, except for cadmium concentrations in the gills. The digestive gland of S. pharaonis would seem to constitute a good potential indicator of heavy metal concentrations in the marine environmental. Results from this study revealed that except for Pb the concentration of metals in S. pharaonis samples were below the threshold values As recommended by the FAO and EC guidelines.کلیدواژه ها
Sepia pharaonis, Digestive gland, Heavy metals, Persian Gulfاطلاعات بیشتر در مورد COI
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