PENGARUH AKTIVITAS WISATA TERHADAP JUMLAH BAKTERI ESCHERICHIA COLI DI SUMBER NYOLO DESA NGENEP KECAMATAN KARANGPLOSO MALANG SEBAGAI SUMBER BELAJAR BIOLOGI

There are many activities that occur in Sumber Nyolo, one of which is tourism activities. These activities will have an impact on the progress of the area and tourist locations, however, activities that occur continuously over a long period of time will cause changes in water quality. The aim of this research is to determine the effect of tourist activities on water quality in Sumber Nyolo, Ngenep Village, Karangploso District, Malang Regency. The method used for sampling uses an integrated technique, namely by mixing several samples taken on one channel, at several points at each station, there are 3 stations with 4 repetitions, twice on quiet days and twice on busy days. From this research, Escherichia coli bacteria were found at 9 CFU/100ml at the tourist location. Meanwhile, at station 1, 3 CFU/100ml were found, 4 CFU/100ml at station 2 and 1 CFU/100ml at station 3. After conducting multiple one-way ANOVA test, the effect of tourist activities on the Number of Escherichia coli Bacteria showed that there were no significant differences at each station. The results of this research can be used as a biology learning resource for class VII middle school students.