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Please use this identifier to cite or link to this item: http://hdl.handle.net/1834/1249

Title: Effect of ecological and biological factors on the uptake and concentration of trace elements by aquatic organisms at Edku lake
Other Titles: تأثير العوامل البيئية والبيولوجية على تركيز العناصر الثقيلة فى الاحياء البحرية لبجيرة أدكو
Authors: Abbas, M.M.
Shakweer, L.
ASFA Terms: Accumulation
Environments
Lake fisheries
Lakes
Issue Date: 2005
Publisher: Alexandria: National Institute of Oceanography and Fisheries
Citation: Egyptian Journal of Aquatic Research, 31 (1), p. 271-287
Abstract: The effect of temperature, pH and trace elements concentration in the ambient water on the uptake and accumulation of Cu, Zn, Ni and Pb in various organs of fish and parts of aquatic plants of Edku Lake were studied. It was found that higher water temperature and lower pH during summer increased the rates of trace metals uptake by the most common fish species Oreochromis niloticus. The concentrations of Cu, Zn, and Ni in the various organs of fish were affected by the concentrations of these elements in the water. Cu, Zn, Ni and Pb attained higher concentrations in the roots of Eichormia crassipes if compared with their concentrations in the other parts of this aquatic plant. Sex of fish can be considered as an important factor affecting the accumulation of trace elements in different organs of fish. The accumulation of Cu, Zn, and Ni in the flesh, liver, gonads and bones of fish were negatively correlated with length of the fish.
Description: This journal is published by NIOF, Alexandria, Egypt
URI: http://hdl.handle.net/1834/1249
ISSN: 1110-0354
Appears in Collections:Egyptian Journal of Aquatic Research

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