Archive:: International Journal of Ecotoxicology and Ecobiology:: Science Publishing Group

Volume 1, Issue 1, June 2016

Heavy Metals Levels in the Blood of Oreochromis niloticus niloticus and Clarias gariepinus as Biomarkers of Metal Pollution in the River Nile

Khaled Youssef AbouelFadl, Walid Aly, Abd-El-Baset Abd El – Reheem, Usama M. Mahmoud, Heba S. Hamed, Mohsen A. Moustafa, Alaa G. M. Osman

Issue: Volume 1, Issue 1, June 2016

Pages: 1-12

Received: 24 May 2016

Accepted: 3 June 2016

Published: 20 June 2016

DOI: 10.11648/j.ijee.20160101.11

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the detected heavy metals in water and sediment samples collected from sampling sites downstream River Nile (polluted sites) compared to those collected from upstream river. The mean concentrations of all the detected metals were significantly (P<0.05) higher in the blood of fish collected from the polluted sites. Pb and Cd in blood serum collected from O. niloticus niloticus were significantly correlated (P<0.05) with corresponding levels in water and sediment samples collected from same sites. Likewise, Pb in blood serum collected from Clarias gariepinus was significantly correlated (P<0.05) with corresponding Pb in water and sediment samples collected from same sites, while Cr and Zn were significantly correlated only with sediment collected from same study sites. The results revealed species specific different sensitivities, suggesting that Nile tilapia may serve as a more sensitive test species compared to the African catfish. These results indicate that the blood metal concentrations of the selected species are adequate biomarkers of metal pollution and could be included in monitoring programmes to indicate the response of such animals to metal pollution. Abstract: A combination of biological monitoring (Biomonitoring) and measurements of water and sediment quality can provide a good indication of conditions and potential risks to any water body, which is an essential step in the development of efficient decision support tools for environmental managers. This study was carried out to investigate the possibili... Show More

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Puffer Fish Catch in the Egyptian Mediterranean Coast "The Challenged Invaders"

Alaa A. K. El-Haweet, Mahmoud M. S. Farrag, El-SayedKh. A. Akel, Mohsen A. Moustafa

Issue: Volume 1, Issue 1, June 2016

Pages: 13-19

Received: 24 May 2016

Accepted: 3 June 2016

Published: 20 June 2016

DOI: 10.11648/j.ijee.20160101.12

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Abstract: Catch per unit effort (CPUE) and distribution of puffer fishes along the Egyptian Mediterranean coast were detected using commercial fishing operation during 2011 and 2012. Puffer fish were mainly caught by bottom long-lines followed by otter bottom trawls and occasionally by other gears (seiners, trammel and gill nets). The average (CPUE) from lon... Show More

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