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Konsowa, A. (2001). IMPACT OF TRACE METALS ON THE DISTRIBUTION OF PHYTOPLANKTON AND THEIR CONTENT IN OREOCHROMIS NILOTJCUS AT ROSETTA BRANCH. Egyptian Journal of Aquatic Biology and Fisheries, 5(4), 237-249. doi: 10.21608/ejabf.2001.1719
Adel Konsowa. "IMPACT OF TRACE METALS ON THE DISTRIBUTION OF PHYTOPLANKTON AND THEIR CONTENT IN OREOCHROMIS NILOTJCUS AT ROSETTA BRANCH". Egyptian Journal of Aquatic Biology and Fisheries, 5, 4, 2001, 237-249. doi: 10.21608/ejabf.2001.1719
Konsowa, A. (2001). 'IMPACT OF TRACE METALS ON THE DISTRIBUTION OF PHYTOPLANKTON AND THEIR CONTENT IN OREOCHROMIS NILOTJCUS AT ROSETTA BRANCH', Egyptian Journal of Aquatic Biology and Fisheries, 5(4), pp. 237-249. doi: 10.21608/ejabf.2001.1719
Konsowa, A. IMPACT OF TRACE METALS ON THE DISTRIBUTION OF PHYTOPLANKTON AND THEIR CONTENT IN OREOCHROMIS NILOTJCUS AT ROSETTA BRANCH. Egyptian Journal of Aquatic Biology and Fisheries, 2001; 5(4): 237-249. doi: 10.21608/ejabf.2001.1719

IMPACT OF TRACE METALS ON THE DISTRIBUTION OF PHYTOPLANKTON AND THEIR CONTENT IN OREOCHROMIS NILOTJCUS AT ROSETTA BRANCH

Article 15, Volume 5, Issue 4, September 2001, Page 237-249  XML PDF (1.39 MB)
Document Type: Original Article
DOI: 10.21608/ejabf.2001.1719
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Author
Adel Konsowa
National Institute of Oceanography and Fisheries
Abstract
The data indicated that El-Rahawy, Sobel, Kafr El-Ziat and Edfina sectors represent the highly polluted area along Rosetta Stream. Phytoplankton crops recorded downstream the discharging point of El-Rahawy and Kafr El-Ziat Drains were higher than the corresponding values occurred at the upstream areas. At Edfina sector, the numerical density of phytoplankton was high upstream the barrage compared to its downstream sector (Estuarinc) and this phenomenon can be related to the negative impact of high salinity. Bacillariophyceae occupied the first predominant position followed by Chlorophyceae and Cyanophyceae. Diatoms, Green and Blue-green algae constituted about 99% of the total phytoplankton crop. Trace metal contents of Rosetta Branch can be arranged in descending order as follows: Fe > Mn > Ni > Pb > Co > Zn > Cd > Cu > Hg. The levels of Fe, Mn and Ni in Oreochromis mloticus flesh collected from El-Rahawy, Sobel, Kafir el-Ziat and Edfina were high compared to the samples caught from El-Kanater Sector.
Keywords
trace metals; phytoplankton; Orcachromis; Rosetta Branch
Main Subjects
Fisheries
Statistics
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