الفهرس 
Biomanagment of abiotic pollution in natural protectorates and river Nile in Egypt
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Abstract
Cyanobacteria constitute a versatile group of photosynthetic bacteria of immense medicinal, commercial and ecological importance with potential uses in biomanagement of industrial effluents especially with high concentration of heavy metals. The main objective of this study to find cyanobacterial species that may have role in biomanagment of abiotic pollution in the selected Egyptian protectorates which are not only differ in their aquatic habitat types but also geographically e.g. Ashtum Elgamil, saluga and ghazal, Wadi Elgemal, AbuGalum, Qaroun, Wadi Elrayan, and Dahab Island as one of river Nile islands protectorates. Those protectorates represent three different habitats i.e. marine, fresh water, brackish habitats. Physical parameters, chemical pollutants and microbiological pollutants were identified. Forty eight species of cyanobacteria were identifed of their diversity belonging to 4 orders, 11 families and 16 genera. The most common species found to be present in at least 4 protectorates were gomphosphaeria aponina, Merismopedia punctata, merismopedia tenuissima, microcystis aeruginosa, and microcystis flos - aquae. Species aligned to only one type of habitats were detected and 12 isolates were belonging to these category. Aphanocapsa koordersi, gloeocapsa decorticans, oscillatoria claricentrosa, oscillatoria foreoui, oscillatoria okeni, phormidium fragile, myxosarcina burmensis and phormidium angustissimum were recorded in Wadi Elrayan protectorates