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  • Articles  (3)
  • Coastal waters  (2)
  • Chemistry  (1)
  • Models, Biological
  • United States
  • Alexandria: National Institute of Oceanography and Fisheries  (3)
  • 2005-2009  (3)
  • 1
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    Spatial and temporal variability of saprophytic and water quality bacteria along the coast of Aqaba, Suez Gulfs and Red Sea-Egypt (2006)
    Alexandria: National Institute of Oceanography and Fisheries
    Details
    Publication Date: 2021-05-19
    Description: This journal is published by NIOF, Alexandria, Egypt
    Description: Spatial and temporal variability in the saprophytic (SB) and salt tolerant saprophytic (STSB) bacterial counts as well as total coliforms (TC), E. coli (EC) and fecal streptococci (FS) were investigated in the Egyptian surface coastal waters of Aqaba and Suez Gulfs as well as Red Sea. A total of 200 samples collected from 40 sites during January, March, May, July and September 2002 were investigated. Hydrographical parameters including water temperature (oC), salinity (S%o), dissolved oxygen (DO) and pH were also measured. According to the European and Egyptian current standards, out of 200 samples analyzed during 2002, 183 samples (91.5%) were accepted for marine recreational purposes. The obtained results indicated that water quality of the investigated coastal areas was generally affected by sewage disposal and (or) other anthropic influences. However in bathing and recreational areas, the water quality was mainly affected by the excessive human presence i.e. tourists-visitors and their recreational activities. In general, the final counts of all the investigated bacterial groups were found to be in good correlation with each other.
    Description: NIOF
    Description: Published
    Keywords: Recreational waters ; Water quality ; Indicators ; Saprophytic bacteria ; Bacteria ; Bacteria ; Coastal waters
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed , Article
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  • 2
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    Physico-chemical characteristics of abu za'baal ponds, Egypt (2006)
    Alexandria: National Institute of Oceanography and Fisheries
    Details
    Publication Date: 2021-05-19
    Description: NIOF, Alexandria, Egypt
    Description: The present study deals with the physical and chemical characteristics of the water of Abu Za'baal Ponds. Determination of physical parameters (air and water temperatures, transparency, electrical conductivity, salinity, total solids, total dissolved solids and total suspended solids) and chemical parameters (pH, DO, BOD, COD, HCO3 -, CO3 --, Cl- , SO4 --,Ca2+, Mg2+, Na+, K+, NO2-, NO3-, NH3, PO4--, TP and SiO2-) were carried out to identify the nature and quality of the water of Abu Za'baal Ponds. The present results reveal that the values of most physical and chemical parameters were higher than those of freshwater, lower than those of saline water and in the same range of the brackishwater. Thus, the water of Abu Za'baal Ponds can be classified as brackishwater.
    Description: National Institute of Oceanography and Fisheries- Alexandria, Egypt
    Description: Published
    Keywords: Abu Za'baal Ponds ; Chemical composition ; Coastal waters ; Environmental conditions ; Chemical analysis ; Chemical composition ; Coastal waters ; Environmental conditions ; Environmental effects
    Repository Name: AquaDocs
    Type: Journal Contribution , Non-Refereed , Article
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  • 3
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    Ecological and fisheries development of Lake Manzalah (Egypt): hydrography and chemistry of Lake Manzalah (2006)
    Alexandria: National Institute of Oceanography and Fisheries
    Details
    Publication Date: 2021-05-19
    Description: This journal is published by the NIOF, Egypt
    Description: 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.
    Description: NIOF
    Description: Published
    Keywords: Hydrography ; Water ; Chemistry ; Chemical composition ; Water content ; Environment ; Chemical composition ; Environments ; Water content ; Fisheries
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed , Article
    Format: 1623488 bytes
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