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مقالات دریایی اساتید و دانشجویان علوم و فنون دریایی - تجمع فلزات سنگین در صدف صخره ای SOCOSTREA CUCULLATA از سواحل ایران در دریای عمان
دوشنبه 15 فروردین 1390

تجمع فلزات سنگین در صدف صخره ای SOCOSTREA CUCULLATA از سواحل ایران در دریای عمان

• نوع مطلب: ISI ،آلودگی دریا ،
• نوشته شده توسط: دریا دریایی

HEAVY METAL CONCENTRATIONS IN ROCK OYSTER SOCOSTREA CUCULLATA FROM IRANIAN COASTS OF THE OMAN SEA

 

F. Einollahi Peer1*, A. Safahieh2, A. Dadollahi Sohrab2, S. Pakzad Tochaii2

1- Institute of Hamoon International Wetland, Zabol university

2- Faculty of Oceanography, Khoramshar University, M. T. Iran

 

سال انتشار:2009

ژورنال:Trakia Journal of Sciences

كشور:

ایمپكت فكتور:

 

HEAVY METAL CONCENTRATIONS IN ROCK OYSTER SOCOSTREA CUCULLATA FROM IRANIAN COASTS OF THE OMAN SEA

 

F. Einollahi Peer1*, A. Safahieh2, A. Dadollahi Sohrab2, S. Pakzad Tochaii2

 

1- Institute of Hamoon International Wetland, Zabol university

2- Faculty of Oceanography, Khoramshar University, M. T. Iran

 

Abstract

 

Heavy metals are persistent pollutants in aquatic ecosystems. They are not biodegradable and due to this property they can enter food chains or accumulate in aquatic invertebrates. Marin bivalves, such as oysters are usually used for biomonitoring and evaluating of the ecosystems health. This study was carried out to measure Cu, Pb and Ni concentrations in soft and hard tissues of rock oyster distributed in intertidal zone of Iranian coasts along the Oman Sea. Oysters were collected from five different stations and digested using concentrated nitric acid and metal concentrations were measured using Atomic Absorption Spectrophotometer. Results showed that Cu, Pb and Ni concentrations in the soft tissues ranged from 84.96 to 371.16 μg/g, 3.83 to 5.26 μg/g and 6.05 to 7.19 μg/g respectively. Similarly metal concentrations in the shells ranged from 14.16 to 16.67 μg/g, 11.30 to 14.92 μg/g, and 5.47 to 7.97 μg/g. concentrations of Cu in soft tissue was found to be much more higher than shells, while Pb concentrations in shells was higher than the soft tissues, suggesting that metals accumulations in different tissues is dependent to their essentiality to the oyster. Generally, metals concentration in the soft tissues of studied oyster was found to be higher than available standards. From the results, regular and more detailed monitoring studies in the study area are recommended.

 

Key word: heavy metal, Saccostrea cucullata, intertidal zone, Oman Sea, Atomic absorption spectrofotomiter, Cu, Pb, Ni

لینک دریافت کامل مقاله به صورت کامل: http://tru.uni-sz.bg/tsj/Vol8No1_2010/F.E.Peer.pdf


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