Condition of Waters in Pejarakan Mangrove Ecosystem, Buleleng, Bali Based on Water Quality Status

Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, Bogor Agricultural Institute, Bogor, 16680

^* Corresponding author: najahmahmudi1@gmail.com

Abstract

Pejarakan mangrove ecosystem area, Bali is one of the largest mangrove forests in Buleleng Regency and is managed for conservation and education. The input of anthropogenic waste or farming activities around the area can affect changes in water quality. This study aims to evaluate the condition of the waters which includes several physical and chemical parameters as a basis for determining the status of water quality in the area. The research was conducted in Pejarakan mangrove area, Bali at 6 station points since September 2022, January 2023, September 2023, and January 2024. The analysis method used is the pollution index (IP). Based on the observation results, pH (7.47-8.49), DO (3-7.6 mg/L), turbidity (0.17-18.75 mg/L), TSS (2.8- 38.6 mg/L), nitrate (0.02-0.05 mg/L), ammonia (0.05-0.5 mg/L), total phosphate (0.01- 0.75 mg/L), temperature (28.7-37.4°C), were obtained, generally the waters were mildly polluted for the pollution index (IP) method.