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Egyptian Journal of Aquatic Biology and Fisheries
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Lotfy, I. (2006). TRACE METALS ACCUMULATION IN MOLLUSCAN SHELLS FROM DAMIETTA NILE BRANCH SEDIMENTS, EGYPT. Egyptian Journal of Aquatic Biology and Fisheries, 10(3), 99-116. doi: 10.21608/ejabf.2006.1866
Ibrahim Lotfy. "TRACE METALS ACCUMULATION IN MOLLUSCAN SHELLS FROM DAMIETTA NILE BRANCH SEDIMENTS, EGYPT". Egyptian Journal of Aquatic Biology and Fisheries, 10, 3, 2006, 99-116. doi: 10.21608/ejabf.2006.1866
Lotfy, I. (2006). 'TRACE METALS ACCUMULATION IN MOLLUSCAN SHELLS FROM DAMIETTA NILE BRANCH SEDIMENTS, EGYPT', Egyptian Journal of Aquatic Biology and Fisheries, 10(3), pp. 99-116. doi: 10.21608/ejabf.2006.1866
Lotfy, I. TRACE METALS ACCUMULATION IN MOLLUSCAN SHELLS FROM DAMIETTA NILE BRANCH SEDIMENTS, EGYPT. Egyptian Journal of Aquatic Biology and Fisheries, 2006; 10(3): 99-116. doi: 10.21608/ejabf.2006.1866

TRACE METALS ACCUMULATION IN MOLLUSCAN SHELLS FROM DAMIETTA NILE BRANCH SEDIMENTS, EGYPT

Article 7, Volume 10, Issue 3, July 2006, Page 99-116  XML PDF (827.83 K)
Document Type: Original Article
DOI: 10.21608/ejabf.2006.1866
View on SCiNiTO View on SCiNiTO
Author
Ibrahim Lotfy
Institute of Oceano. & Fish,. Egypt
Abstract
The dissolved heavy metals (As, Ba, Cd, Cr,Co, Cu, Fe, Mn. Mo, Ni, Pb3 Se, Sr, V and Zn) in molluscan shells from Damietta Nile branch sediments were estimated in three zones during April - June 2004.The average values (ppm*10"3) were 0.63, 0.3, 0.01, 0.05, 0.13, 2.32, 3.33, 1,97, 0.19, 0.22, 0.26, 0.5,2.51, 0.051 and 2.21, respectively,
Results indicate that levels of heavy metals increased northwards and in nepionic (recent) stages and were positively correlated with salinity, chlorisity, alkalinity, dissolved oxygen and calcite mineral and negatively correlated with pH values and aragonite mineral Certain heavy metals such as As, Co, Cu, Fe, Mn. Mo and Pb were more abundant in bivalve shells(i.e. high aragonite), while Ba, Cd, Cr, Ni, Pb, Sr, V and Zn were more abundant in gastropod shells (i.e. high calcite).
Keywords
trace metals; bivalves; gastropods; Environmental factors; DamiettaNiie branch
Main Subjects
Fisheries
Statistics
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