Adel Abdelhalim Khattab Azab <br/><br/>
Floristic study on the water plants in the Nile Delta region - Egypt /  
 دراسة فلورية للنباتات المائية فى منطقة دلتا النيل - مصر 
Adel Abdelhalim Khattab Azab ; Supervised Monier Mohamed Abdelghani , Ashraf Tawfeek Soliman , Abdelmegeed Abdelfatah Elfiky 
 - Cairo :   Adel Abdelhalim Khattab Azab ,   2007 
 - 211Leaves :   Maps , tables , facsimiles ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty Of Science - Department of Botany Taxonomy and Flora 
<br/><br/> The study area had been divided into four sectors covering the whole area (Delta) ; in the present study , the open water communities had low species diversity (total number of species or species richness) , which may be due to that most of their species are highly specific to the aquatic habitats and the same species occurs at nearly all the sites , this means that the species replacement or biotic change is low 
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<br/><br/><label>Subjects--Index Terms: </label>Heavy metals Hydrophytes Nile Delta