Data/hora: 06/06/2024 09:38:18

Provedor de dados: 	20	
País: 	Belgium	
Título: 	Distribution and relationships of heavy metals in the giant clam (Tridacna maxima) and associated sediments from different sites in the Egyptian Red Sea Coast

توزيع وعلاقات العناصر الثقيلة فى الكائن الصدفى الكبير (نراى داكنا مكسيما) والرواسب المصاحبة من مناطق مختلفة للساحل المصرى للبحر الاحمر	
Autores: 	Madkour, H.A.	
Data: 	2006-08-21	
Ano: 	2005	
Palavras-chave: 	Bioaccumulation; Heavy metals; Giant clam; Tridacna; Red Sea Accumulation Chemical analysis Clam culture Absorption http://aims.fao.org/aos/agrovoc/c_27.	
Resumo: 	The giant clam (Tridacna maxima) and sediments have been collected from clean and contaminated coastal sites of the Egyptian Red Sea. Selected samples of the giant clam shells and the associated surface sediments were analyzed for Fe, Mn, Zn, Cu, Pb, Ni and Cd. Significant spatial differences in metal concentrations in Tridacna maxima and sediments were identified. Copper and lead are greatly enriched in the giant clam shells, which is related to their physiological function. Cd content is higher in Tridacna maxima than in sediments, because of the easy substitution between Cd and Ca. The levels of most metals in the giant clam shells and sediments were higher in the anthropogenic sites than in the uncontaminated sites. Generally, metal variations reflect natural conditions and human activity. Moreover, there are no clear relationships between concentrations of heavy metals in the giant clam shells and those in sediments.	
Tipo: 	Journal Contribution	
Idioma: 	Inglês	
Identificador: 	Egyptian Journal of Aquatic Research, 31 (2), p. 45-59

1687-4285

http://hdl.handle.net/1834/1307	
Editor: 	Alexandria: National Institute of Oceanography and Fisheries	
Formato: 	44369 bytes

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