نوع مقاله : بوم شناسی
نویسندگان
دانشکده علوم و فنون دریایی دانشگاه آزاد اسلامی، واحد تهران شمال، تهران، صندوق پستی: 181- 19735
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
* Corresponding Author’s email: maya_azari@yahoo.com This project was conducted to evaluate the concentration of heavy metals such as Nickel and Lead in soft tissue and hard tissue of the dominant sea urchin (Echinometra mathaei) in rocky shores of Kish Island. Sampling was carried out in four different stations including the kashtiyoonani, Bazar Arab, Seda & Sima and Derakht-e-Sabz in winter (February) and summer (August) of 2011. The amount of heavy metal was evaluated after preparation and chemical digestion of the sample (sea water, sediment, algae of sea urchin habitat, sea urchin soft tissue and hard tissue) with the atomic absorption instrument equipped with graphite stove. Bioaccumulation of Lead in winter was higher than Nickel, concentration in algae3.15μgg-1drywt>deposition2.23μgg-1drywt>sea urchin soft tissue 0.86μgg-1drywt> sea urchin hard tissue0.62μgg-1drywt respectively, bioaccumulation of Lead in summer was algae2.15μgg-1drywt>sea urchin soft tissue 1.85μgg-1drywt> deposition 1.73μgg-1drywt>sea urchin hard tissue0.70μgg-1drywt respectively, bioaccumulation of Nickel in winter was deposition2.64μgg-1drywt>algae1.93μgg-1drywt>sea urchin soft tissue1.52μgg-1drywt>sea urchin hard tissue0.68μgg-1drywt respectively ,bioaccumulation of Nickel in summer was higher than Lead, concentration in alagae8.63μgg-1drywt>sea urchin soft tissue3.27μgg-1drywt>deposition2.72μgg-1drywt>sea urchin hard tissue0.52μgg-1drywt respectively, was reported. Concentration of Lead and Nickel in sea water in winter and summer in 4 station was for Lead 10> μgl-1drywt and Nickel 5> μgl-1drywt. There was not a significant difference between the amount of pollutant in sea urchin soft and hard tissue, algae and the sediment in winter and summer (p≥0.05).
کلیدواژهها [English]
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