CD Skripsi
Konsentrasi Bahan Organik Di Sekitar Dam Waduk Plta Koto Panjang
Koto Panjang reservoir has the main function as a hydroelectric power plant, besides it is used as a place to catch fish and cultivate fish in floating cages, as well as being a tourist area. The study aims to understand the concentration of organic matter in the dam site Koto Panjang reservoir. This study was conducted May-June 2018.Samplings were conducted 3 times, once/week. There were 3 stations namely Station 1 area with 100-150 floating cages, Station 2 area with 200-300 floating cages and Station 3 area with 946 floating cages. In each station, there were 3 sampling points, in the surface, in 2 Secchi depth and in 4 Secchi depth. Water quality parameters measured were temperature, transparency, TOM, BOD5, dissolved oxygen, H2S, free carbondioxide, pH and phosphate. Result shown that organic matter parameters was TOM: 13.37-24.08 mg/L and BOD5: 5.7-8.6 mg/L. It can be concluded Koto Panjang reservoir was categorized as lightly polluted. Generally other water quality parameter measured still support for fisheries activities as dissolved oxygen: 3.60-7,11 mg/L, H2S: 1.2-1.4 mg/L, ammonia: 0.03-0.22 mg/L, transparency: 101-139 cm, temperature: 28.0-31.30C, free carbondioxide: 14.3-28.5 mg/L, pH: 5-5.5 and phosphate: 0.07-0.26 mg/L. Need to watch out for when the up welling occurs.
Keyword: Organic matter, water quality, floating cages, Lightly polluted
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