Site Location Weight (%) 3,4-Epoxy-nephthenol acetate (1) in wet weight of Nephthea sp. Weight (%) 15-Hydroxy-cembrane(2) in wet weight of Nephthea sp. Inhibition effect of 30 ppm Nephthea sp. extract towards T47D cells (%) Live Coral Cover (%)
    Value ±SD Value ±SD Value ±SD Value
1 E. Peteloran Island 0.00 0.00 0.00 0.00 0.00 0.00 20
2 W. Penjaliran Island 0.01 0.00 0.04 0.01 0.00 0.00 25
3 Jagung Island 0.11 0.02 0.06 0.01 0.00 0.00 5
4 Sebaru Besar Island 0.16 0.02 0.09 0.01 40.52 0.78 30
5 Melinjo Island 0.13 0.02 0.06 0.00 0.00 0.00 25
6 Putri Island 0.14 0.01 0.05 0.01 37.71 1.56 35
7 Pelangi Island 0.19 0.01 0.06 0.00 61.92 0.62 30
8 Kayu A. Bira Island 0.17 0.04 0.06 0.01 63.10 1.98 35
9 Kelapa Island 0.00 0.00 0.00 0.00 0.00 0.00 10
10 Kotok Island 0.05 0.01 0.04 0.01 8.84 1.08 20
11 Panggang Island 0.07 0.00 0.07 0.00 10.13 1.51 40
12 Pramuka Island 0.05 0.00 0.00 0.00 0.00 0.00 20
Table 2: Yield of 3,4 epoxy-nephthenol acetate (1) and 15-hydroxy-cembrane (2) in wet weight of Nephthea sp., inhibition of 30 ppm Nephthea sp., extract to T47D cell lines, and live coral cover in each sampling location.