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Water sources - Brackishwater Resources
Unit 8 - Brackish and marine water fish farms
The following are the brackish water sources such as sea, creeks, estuaries, lagoons, artificial sea water etc. Like other surface waters, brackish and seawater sources are subject to contamination usually increasing in severity the closer one is to the shoreline. Coastal pollution is an ever worsen without strict governmental regulation. Water intakes should be located as far offshore as economically practical and should not be located near industrial or municipal discharges or near area subject to agricultural runoff. Salt water is very corrosive; therefore, pipes, fixtures, pumps, and other components that come into contact with the water should be fabricated from corrosion-resistant materials. Fouling is also a considerable problem wherever salt water is used. Measures that can be taken to mitigate fouling problems are discussed at length by Wheaton (1977).
The saltwater source should be of constant salinity. This is generally not a problem where the water intake is located far offshore. Intakes located near freshwater inflows from rivers and streams or in shallow water areas that may be affected by evaporation and rainfall are subject to rapid fluctuations in salinity and should be used with caution. Saltwater intrusion in some coastal regions makes it possible to extract brackish water from the ground. The quality of such wells depends on site conditions and the geology of the water bearing strata.
Last modified: Wednesday, 27 April 2011, 8:52 AM