Water Quality assessment in Indonesia Coral Reef Garden Buleleng site area, Bali M R Badriana (a*), A A Nur (a), A I Hidayatullah (a), D F Oktaviani (a), W A Prastyo (a), C K Jeon (a), I M Radjawane (a,b), H S Park (a,c), A A Hutahean (d)
a) Korea-Indonesia Marine Technology Cooperation Research Center, Cirebon, Indonesia
*riam_badriana[at]mtcrc.center
b) Faculty of Earth Science and Technology, Bandung Institute of Technology, Bandung, Indonesia
c) Korea Institute of Ocean Science and Technology, Busan, Korea
d) Coordinating Ministry for Maritime Affairs and Investment (CMMAI), Indonesia
Abstract
The Indonesia Coral Reef Garden (ICRG) program is announced as a coral reef restoration program and has 5 site areas including in Buleleng, Bali. A plantation program has been done by 2020 but it is necessary to monitor and study regarding the water quality surrounding the restoration area. A field survey in Buleleng was carried out on 6-7 October 2022 to measure ocean parameters both physical and chemical characteristics that are suitable for coral life. The bathymetry result at Buleleng varied significantly from shallow to deeper water depth. Many corals are found in the shallow area with the natural coral meanwhile the restoration coral was put in more than 3 m depth. In the study, the sea condition of temperature, salinity, pH, turbidity, and DO is 28.52 - 29.66 C, 33.6 - 33.9 PSU, 8.0 - 8.13, 1.04 - 1.78 FTU, and 4.27 - 4.85 mg/L, respectively. Based on the conformity of water quality, the water condition is good for coral growth. Heavy metal detected in sample water has low levels compared to marine biota threshold in the national standard
