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	Provedor de dados OceanDocs (3) Autor Madkour, H.A. (3) Dar, M.A. (1) Palavra-chave Heavy metals (2) Bioaccumulation (1) Coral reefs (1) Environmental Study (1) Giant clam (1) Hard corals (1) Heavy metals Environments Marine ecology Marine pollution Sediments Coral reefs Environment Marine ecology http://aims.fao.org/aos/agrovoc/c_2593 http://aims.fao.org/aos/agrovoc/c_4609 (1) Http://aims.fao.org/aos/agrovoc/c_1880 (1) Http://aims.fao.org/aos/agrovoc/c_2223 (1) Http://aims.fao.org/aos/agrovoc/c_6903 (1) Natural impacts (1) Red Sea Accumulation Chemical analysis Clam culture Absorption http://aims.fao.org/aos/agrovoc/c_27 (1) Sea water (1) Sediments (1) Tridacna (1) Wadi El-Gemal (1) Mais... Tipo do documento Journal Contribution (3) Ano 2007 (1) 2005 (2) País Belgium (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Geochemical and environmental studies of recent marine sediments and some hard corals of Wadi El-Gemal area of the Red Sea, Egypt OceanDocs Madkour, H.A.. The distribution of (Fe, Mn, Zn, Cu, Pb, Ni, Co and Cd) concentrations were determined in surface marine sediments and coral reefs at Wadi El-Gemal in the Red Sea area. There were significant differences in concentrations of heavy metals in the marine sediments relative to the coral reefs. Some heavy metal concentrations in sediments and coral reefs in the study area are high compared to that in the impact areas of the Egyptian Red Sea coast. The results indicate that the high concentrations of heavy metals in marine sediments and coral reefs are particularly affected by the high contribution of terrigenous materials through the stream of Wadi El-Gemal. Generally, heavy metals concentration in the sediments decreased with increasing distance from the... Tipo: Journal Contribution Palavras-chave: Hard corals; Wadi El-Gemal; Natural impacts; Heavy metals Environments Marine ecology Marine pollution Sediments Coral reefs Environment Marine ecology http://aims.fao.org/aos/agrovoc/c_2593 http://aims.fao.org/aos/agrovoc/c_4609. Ano: 2005 URL: http://hdl.handle.net/1834/1254 The anthropogenic effluents of the human activities on the red sea coast at hurghada harbour (case study) OceanDocs Madkour, H.A.; Dar, M.A.. The heavy metal accumulations in the seawater, coral reefs and two effective fractions of underlying sediments (<0.125mm and < 0.063mm) were studied in the coastal and tidal flat zones at the main shipyard near of Hurghada Harbour. The area of investigation is very worse whereas, it is considered tailing outlet for both solid and liquid influents of many human activities in/and surrounding the harbour. The solid phases are of construction remains, paint remains, iron pipe rusts, hydrocarbons, plastic bags, metal and wood remains as well as the artificially conglomerate stones that thrown in the in the marine area. The liquid phase is restricted in the continuous brine water draining to the sea from a huge desalination plant (Capacity 5000 cubic... Tipo: Journal Contribution Palavras-chave: Environmental Study; Sediments; Sea water; Coral reefs; Heavy metals; Coral reefs; Heavy metals; Sea water; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_6903. Ano: 2007 URL: http://hdl.handle.net/1834/1890 Distribution and relationships of heavy metals in the giant clam (Tridacna maxima) and associated sediments from different sites in the Egyptian Red Sea Coast OceanDocs Madkour, H.A.. 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... Tipo: Journal Contribution Palavras-chave: Bioaccumulation; Heavy metals; Giant clam; Tridacna; Red Sea Accumulation Chemical analysis Clam culture Absorption http://aims.fao.org/aos/agrovoc/c_27. Ano: 2005 URL: http://hdl.handle.net/1834/1307 Registros recuperados: 3 Primeira ... 1 ... Última

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