الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
In recent years marine pollution has increased due to increase in ship traffic and the uncontrolled dumping of toxic materials and wastes to the sea. The load from combined pollution with petroleum hydrocarbons and heavy metals exerts direct and indirect dangerous effects on the marine ecosystem.
Biodegradation of petroleum hydrocarbons and bioaccumulation of heavy metals are two microbial processes with high potential for bioremediation of marine ecosystem. The present study deals with the interaction between these two processes in the presence of high levels of petroleum hydrocarbons and heavy metals and the stress of each process on the other and also the effects of the different environmental factors on these processes.
The course of experiments started with screening of bacterial isolates that efficiently degrade petroleum hydrocarbons and others that accumulate heavy metals and also the total heterotrophic bacteria in sea water and sediment samples collected from some sites indicated prevalence of different type of pollution along Alexandria coast. Also a control site away from pollution sources was chosen to use as a control. Physical, chemical, and pollution conditions in sea water and sediment samples, that might affect were also investigated.