WATER QUALITY ANALYSIS BASED ON TOTAL COLIFORM BACTERIA IN AMBON BAY
Zen Ladestam Siallagan

Institut Teknologi Bandung- Badan Riset dan Innovasi Nasional

Abstract

Ambon Bay is divided into two main parts, namely the Inner Ambon Bay (TAD) and the Outer Ambon Bay (TAL). The quality of Ambon Bay waters continues to decline along with increased activity around the bay. This study aims to determine the health quality of the waters around Ambon Bay and Ambon Dalam Bay (TAD) from a microbiological aspect. Determination of the number of coliform bacteria in the tested seawater samples was carried out using the Most Probable Number (MPN) method. In addition to taking seawater samples, physical and chemical parameters were measured, such as salinity, temperature, turbidity, dissolved oxygen (DO), pH, phosphate, and nitrate content at surface depth limits (0-1 meter). The study results found that station 11 was the location of the observation station with the highest total coliform, while stations 6,16,17 were areas with low total coliform values. Coliform bacteria detected the condition of the water quality of Ambon Bay as a whole. One observation station location that did not meet the requirements was found out of eighteen observation stations, namely station 11, following the Decree of the Minister of Environment No. 51 of 2004 (KepMen LH 51/2004) concerning Seawater Quality Standards for Marine Biota, Marine Tourism, and Ports. The high pollution around the bay, which comes from domestic, industrial, and market waste, is the main trigger for the high coliform bacteria in that location. Continuous monitoring is needed representing a season or per certain period to obtain more comprehensive data and mitigation measures to ensure the health of Ambon Bay in the future.

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Topic: Biology