الفهرس 
Water bodies in Egypt
Physico-Chemical Parameters:Only 14 pages are availabe for public view
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Abstract
All human activities produce some impact on the surrounding environment, and aquaculture is not an exception, as it utilizes natural resources and releases waste into the environment. As then aquaculture sector developed, environmental aspects became of an increasing concern, in parallel with maximum public environmental concern developed from the second half of the 20th century. Up to now, most aquaculture practices have produced little negative effects on the ecosystems, even being beneficial in some cases. However, frequently a deficient management or accidents in aquaculture facilities have been reported to cause negative effects. Potential effects of aquaculture activities include water and sediment quality, and negative impacts on natural populations, landscape, and other pre-existing economical activities. To a great extent, these effects depend upon factors such as type of facilities, geographical location, and produced species. The ultimate origin of this variety of effect consists of a small number of sources, including feeds offered, chemicals, animals excretions, dead animals, and the interactions between cultured and wild animals (Domínguez and Martín, 2004).
Aquaculture has over the years been able to offset the deficits in national fish production all over the world. There have been substantial socio-economic benefits arising from the expansion of aquaculture. Previously seen as a solution to capture fisheries which have over the years caused significant ecological changes to the environment, aquaculture has now been identified to pose equally the same problems, or even worse in some cases. The study reviews some deleterious effects of aquaculture and assesses the impact of the increasing practice of aquaculture on the surrounding habitats.