Protozoan diversity at certain provinces on the River Nile, Upper Egypt | ||
| Journal of Egyptian Academic Society for Environmental Development. D, Environmental Studies | ||
| Article 10, Volume 19, Issue 1, 2018, Pages 143-152 PDF (601.58 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jades.2018.62577 | ||
| Author | ||
| Mansour Ahmad Galal* | ||
| Zoo. Dept., Fac. of Sci., El-Menofeyia Univ | ||
| Abstract | ||
| ABSTRACT This study was performed on the River Nile at Luxor and Aswan provinces in order to examine, identify and detect both the protozoan diversity and abundance beside some of the physico-chemical variables during periods extending between 2014 and 2016. It was proved that the three main protozoan phyla ( Sarcodina, Mastigophorea with particular reference to Phyto-mastigophorea and Ciliophora) were present in all the examined stations but at different varieties. A total of 66 protozoan genera (11 flagellates, six sarcodines and 49 ciliates were detected at Aswan sampling stations, while those of Luxor achieved 41 genera (five flagellates, five sarcodines and 31 ciliates). The highest and lowest numerical densities of the protozoa were obtained on autumn and winter respectively at most of the sampling sites. It was illustrated that dissolved oxygen, phosphate, nitrates, and pH values were higher at Aswan stations as compared with those of Luxor, while organic matter and water temperatures behaved mostly in an incompatible pattern. From the statistical point of view, organic matter, phosphate and nitrate salts affect significantly the availability of the protozoa at Luxor stations, while water temperature, PH, organic matter, phosphate and nitrate salts play a significant role in the prevalence of these organisms at Aswan. It was proved that protozoa used as bioindicators for organic pollution such as Carchesium, Opercularia, Vaginicola, Metopus and Epistylis spp. are more abundant at Luxor stations relative to those of Aswan which could be attributed mainly to the Nile crews, other navigation activities and illegal dumping of sewage. | ||
| Keywords | ||
| Nile; protozoa; Upper Egypt | ||
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