Site Location Phospate (ppm) Dissolved Inorganic Nitrogen (ppm) pH
    Value ±SD Value ±SD Value ±SD
1 East Peteloran Island 0.043* 0.006 0.029 0.001 7.77 0.06
2 West Penjaliran Island 0.017* 0.006 0.097 0.016 7.73 0.06
3 Jagung Island 0.357 0.031 0.082 0.000 8.20 0.00
4 Sebaru Besar Island 0.103 0.015 0.020 0.003 8.23 0.06
5 Melinjo Island 0.033* 0.012 0.018 0.002 8.13 0.06
6 Putri Island 0.037* 0.012 0.004* 0.002 8.27 0.06
7 Pelangi Island 0.083 0.006 0.035 0.003 8.23 0.06
8 Kayu Angin Bira Island 0.047* 0.015 0.000 0.000 8.13 0.06
9 Kelapa Island 0.413 0.006 0.006 0.002 8.23 0.06
10 Kotok Island 0.110 0.000 0.033 0.010 8.27 0.06
11 Panggang Island 0.357 0.006 0.043 0.007 8.23 0.06
12 Pramuka Island 0.170 0.000 0.128 0.006 8.20 0.00
*Value below stated instrument detection limit (0.05 ppm for Phosphate and 0.005 ppm for nitrogen)
Table 1: Concentration of active phosphate (ppm) and inorganic nitrogen (ppm), and pH at sampling sites in the Seribu Islands.