Eutrophication Report

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Eutrophication is a process where a body of water acquires a high concentration of nutrients such as nitrogen and phosphate. Nitrogen elements are mainly from exotic pollution while phosphate contents are from both exotic pollution and release of sediments from sewage. Eutrophication process will eventually lead to water bloom or abundance of photosynthetic microorganism present in a body of water. These two events were reported to occur in the backwater of the Three Gorges Reservoir in China.
In the article Functional Bacteria as Potential Indicators of Water Quality in TGR in China by Wong et.al, they made emphasized on the whole experiment process starting with the collection of bacteria samples from the surface water, bottom water, and sediments in seven locations in …show more content…

It was mentioned that when nutrient level in the media was increased, the cultured colonies was increased as well. There was also a tabulated data about the differences in physiological characteristics (temperature, dissolved oxygen, total nitrogen content, total phosphate content and chlorophyll a concentrations) of bacteria present in different sampling locations. The temperature and the pH as well as the DO are generally higher in the surface water compared with the bottom water. The N content is also higher in surface water while the P content showed no obvious difference. Aside from amount distribution and physiological characteristics, microbial community diversities were also investigated by the use of community-level physiological profiles (CLPP). The Shannon indices indicated that the microbial community diversities exhibited week differences in opposition to the results of bacterial richness. With the entire test performed, it was revealed that the eight functional bacteria which are highly responsible for transforming nitrogen and phosphorus content in the

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