ANALISIS BAKTERI ESCHERICHIA COLI DI PERAIRAN DAN SEDIMEN LAUT DI PULAU MIANG BESAR KECAMATAN SANGKULIRANG KABUPATEN KUTAI TIMUR

Abstract

Escherichia coli is a fecal coliform that originates from the intestines of humans and warm-blooded animals. Escherichia coli bacteria can be found in nature commonly found in waters and sediments. In nature, bacteria are useful as a degrading organic material but, if the amount of these bacteria is excessive then it can be an indicator of pollution. Sampling and this research were conducted from January to March 2020 in Miang Besar Island waters. Sampling was carried out at stations that have some coral reef, seagrass, and mangrove ecosystems. This study aims to determine the presence of Escherichia coli bacteria with analysis. The research method used is the MPN (Most Probable Number) method for laboratory testing. The laboratory test results were then analyzed by descriptive qualitative. MPN test results from this study indicate that there are Escherichia coli bacteria in the waters of Miang Besar Island. The results obtained on average in the seagrass ecosystem 11 MPN/ml, mangrove ecosystem 2 MPN/ml and community settlement 9 MPN/ml Escherichia coli bacteria in the waters while in the sediment obtained on average in the coral reef ecosystem 3 MPN/ml, seagrass ecosystem 1.3 MPN/ml, mangrove ecosystem 3 MPN/ml, and community settlement 20 MPN/ml. Based on KEPMEN-LH Number 51 of 2004 the test results of the presence of Escherichia coli bacteria according to seawater quality standards