الفهرس | Only 14 pages are availabe for public view |
Abstract The main target of this work is to estimate the eutrophication status and how At is related to the physico-chemical conditions, phytoplankton community structure, including spatial and monthly distribution, chlorophyll-g biomass and diversity of community in the area of behind Kayet Bey to El-Silsila region. Also this work comprised laboratory culture experiments of some planktonic species (Navicula cryptocephala Kutz. and Melosira varians Ag.) isolated from the area of investigation to study, the effect of sewage water and some of its individual components (nutritive elements) on the growth of the two organisms. The investigated area located at the western part of Alexandria coastal waters extends from the eastern part to El-Silsila region about (12km2), it includes the main sewer of Kayet Bey which discharges minimally treated wastewater (93 MLD) directly to the sea through a 700 meter sea outfall discharge, also it comprises discharged minimally treated wastewater off El-Silsila (58 MLDAnother source of water pollution is caused by the fishing boats. |