Data/hora: 08/06/2024 10:17:27

Provedor de dados: | 20
País: | Belgium

Título:

Ecological and fisheries development of Lake Manzalah (Egypt):  hydrography and chemistry of Lake Manzalah

العوامل الهيدروجرافية والكيميائية فى بحيرة المنزلة

Autores: | Shakweer, L.
Data: | 2006-05-12
Ano: | 2005
Palavras-chave: | Hydrography; Water; Chemistry Chemical composition Environments Water content Fisheries Chemical composition Water content Environment http://aims.fao.org/aos/agrovoc/c_1794 http://aims.fao.org/aos/agrovoc/c_15852 http://aims.fao.org/aos/agrovoc/c_2593.
Resumo: | Lake Manzalah; the largest delta Lake in Egypt represents a dynamic system that has been undergoing continuous and pronounced changes since long times. In the last year’s this Lake faced drastic problems that retarded its environmental and fisheries development; the most serious one is the discharge of waste water. It is attempted in the present study to investigate the chemical characters of Lake Manzalah water during 2001-2002. Water temperature ranged from an average of 12.35oC in January and 29.14oC in July. Dissolved Oxygen, pH and total dissolved solids were found in ranges optimum for the living of marine and freshwater fish species. The average concentrations of nutrients lied in the following ranges: 1.24 to 4.89 μmol PO4 -3 l-1 , 5.08 to 28.73 μmol SiO4 -2 l-1 and 1.81 to 17.7 μ_mol NO3-1 l-1 The concentrations of phosphorus and nitrogen compounds were found to be relatively higher at the southern regions of the Lake near to the outlets of the drains.
Tipo: | Journal Contribution
Idioma: | Inglês

Identificador:

Egyptian Journal of Aquatic Research, 31 (1), p. 251-270

1110-0354

http://hdl.handle.net/1834/1250

Editor: | Alexandria: National Institute of Oceanography and Fisheries

Formato:

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