Effect of pollution on macrobenthic invertebrates in some localities along the River Nile at Great Cairo, Egypt.
Saad, A., Emam, W., Mola, H., Omar, H. (2015). Effect of pollution on macrobenthic invertebrates in some localities along the River Nile at Great Cairo, Egypt.. EKB Journal Management System, 19(2), 1-11. doi: 10.21608/ejabf.2015.2252
Abd El-Halim Saad; Waheed Emam; Hesham Mola; Hadeel Omar. "Effect of pollution on macrobenthic invertebrates in some localities along the River Nile at Great Cairo, Egypt.". EKB Journal Management System, 19, 2, 2015, 1-11. doi: 10.21608/ejabf.2015.2252
Saad, A., Emam, W., Mola, H., Omar, H. (2015). 'Effect of pollution on macrobenthic invertebrates in some localities along the River Nile at Great Cairo, Egypt.', EKB Journal Management System, 19(2), pp. 1-11. doi: 10.21608/ejabf.2015.2252
Saad, A., Emam, W., Mola, H., Omar, H. Effect of pollution on macrobenthic invertebrates in some localities along the River Nile at Great Cairo, Egypt.. EKB Journal Management System, 2015; 19(2): 1-11. doi: 10.21608/ejabf.2015.2252

Effect of pollution on macrobenthic invertebrates in some localities along the River Nile at Great Cairo, Egypt.

Egyptian Journal of Aquatic Biology and Fisheries
Article 1, Volume 19, Issue 2, April 2015, Page 1-11  XML PDF (535.62 K)
Document Type: Original Article
DOI: 10.21608/ejabf.2015.2252
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Authors
Abd El-Halim Saad1; Waheed Emam1; Hesham Mola2; Hadeel Omar1
1Zoology department, Faculty of science, Ain Shams University, Cairo, Egypt.
2National Institute of Oceanography and Fisheries (NIOF), El-Qanater.
Abstract
The impact of heavy metals on macrobenthic invertebrates in five stations along
the River Nile at Great Cairo (from Helwan to El-Qanater El-Khiria) was studied
during the period from May, 2013 to February, 2014. Physico-chemical characteristics
and heavy metals (iron, manganese, zinc, copper and cadmium) were analyzed in
water. The highest average number (2305 org./m2) of macrobenthic invertebrates was
recorded during spring, while the lowest (642 org./m2) was recorded during summer.
Annelida, Mollusca and Arthropoda were the most dominant groups being 62 %, 34
% and 4 % respectively. Twenty two species and taxa were recorded; Mollusca (13
species) and Annelida (7 species) Arthropoda (2 species).
All the heavy metal concentrations were within the permissible limits except at
Helwan and Hawamdia due to the effect of discharged industrial wastes. The highest
positive correlation was recorded between Arthropoda and iron & zinc, while iron
recorded a negative correlation with Mollusca and Annelida. The principal component
analysis (PCA) showed that the most dominant annelid Limnodrilus spp. had a
positive correlation with cadmium and negative correlation with all other heavy
metals. This indicates that this species can resist the high concentrations of cadmium
Keywords
Macrobenthic invertebrates; Heavy metals; River Nile
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