Collected by Elsie, Pam and Gemma on the 27th of July 2013
| Position | Depth (m) | Time | Temp. (C) | Visibility (m) | pH | EC | TDS (ppm) | ORP (mV) | Salinity | Dis. O2 (ppm) | Nitrates | Phosphates |
| 3,0 | 2.6 | 1702 | 29 | 9.1 | 8.45 | 18.12 | 12710 | 160 | 1.026 | 9 | – | – |
| 3,100 | 2.1 | 1726 | 29 | 9.15 | 8.36 | 19.03 | 13300 | 154 | 1.025 | 9 | – | – |
| 12,0 | 12.3 | 1734 | 29 | 7 | 8.4 | 19.72 | 14290 | 145 | 1.025 | 8 | – | – |
| 12,100 | 13.4 | 1744 | 29 | 7.4 | 8.41 | 19.54 | 14530 | 143 | 1.026 | 8 | – | – |
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Collected by Leon and Maita on the 12th of May 2013
| Position | Depth (m) | Time | Temp. (C) | Visibility (m) | pH | EC | TDS (ppm) | ORP (mV) | Salinity | Dis. O2 (ppm) | Nitrates | Phosphates |
| 3,0 | 3.2 | 718 | 31 | 17 | 8.41 | 19.68 | 13760 | 132 | 1.025 | 8 | – | – |
| 3,100 | 2.7 | 701 | 30 | 21 | 8.42 | 19.91 | 13960 | 135 | 1.024 | 8 | – | – |
| 12,0 | 12 | 716 | 31 | 17 | 8.43 | 19.92 | 14130 | 140 | 1.025 | 10 | – | – |
| 12,100 | 12.5 | 705 | 29 | 15 | 8.43 | 19.67 | 13780 | 138 | 1.025 | 8 | – | – |
Collected by Elsie, Pam and Giovanni on the 3rd of May 2013
| Position | Depth (m) | Time | Temp. (C) | Visibility (m) | pH | EC | TDS (ppm) | ORP (mV) | Salinity | Dis. O2 (ppm) | Nitrates | Phosphates |
| 3,0 | 2.7 | 1046 | 30 | 9.3 | 8.49 | 13.46 | 9670 | 133 | 1.025 | 6 | – | – |
| 3,100 | 2.6 | 1033 | 30 | 10.3 | 8.45 | 16.43 | 11450 | 128 | 1.025 | 8 | – | – |
| 12,0 | 11.4 | 1027 | 30 | 8 | 8.41 | 13.52 | 10180 | 126 | 1.025 | 10 | – | – |
| 12,100 | 12.2 | 1015 | 30 | 9 | 8.47 | 17.6 | 12420 | 130 | 1.025 | 6 | – | – |
Collected by Agata, Kheng, Yonghe and Luyin on the 29th of March 2013
| Position | Depth (m) | Time | Temp. (C) | Visibility (m) | pH | EC | TDS (ppm) | ORP (mV) | Salinity | Dis. O2 (ppm) | Nitrates | Phosphates |
| 3,0 | 3.7 | 912 | 30 | 25.3 | 8.45 | 17.32 | 12210 | 145 | 1.025 | 7 | – | – |
| 3,100 | 3.5 | 901 | 30 | 20 | 8.43 | 19.98 | 13980 | 155 | 1.024 | 7 | – | – |
| 12,0 | 12.5 | 840 | 30 | 20 | 8.43 | 19.52 | 13620 | 148 | 1.026 | 4 | – | – |
| 12,100 | 13.2 | 852 | 30 | 23.5 | 8.43 | 19.83 | 13880 | 151 | 1.025 | 6 | – | – |
Collected by Jun and Tim on the 23rd of March 2013
| Position | Depth (m) | Time | Temp. (C) | Visibility (m) | pH | EC | TDS (ppm) | ORP (mV) | Salinity | Dis. O2 (ppm) | Nitrates | Phosphates |
| 3,0 | 3 | 1128 | 29 | 18.2 | 8.32 | 17.58 | 12970 | 94 | 1.024 | 7 | – | – |
| 3,100 | 2.8 | 1156 | 29 | 18 | 8.36 | 19.98 | 13880 | 123 | 1.024 | 7 | – | – |
| 12,0 | 11.8 | 1137 | 29 | 17 | 8.36 | 19.35 | 13400 | 95 | 1.025 | 7 | – | – |
| 12,100 | 12.5 | 1149 | 29 | 17.6 | 8.36 | 19.31 | 13770 | 115 | 1.025 | 8 | – | – |
Collected by Gemma and Leon
| Coral Tagging Measurements | |||||
| Branching | Location | Species | Tags | Size | Depth (m) |
| 1 | 91,8.8 | 3 | Mid to large | 9.5 | |
| 2 | 51,1.8 from top | 3 | Small | 4.3 | |
| 3 | 5,19.7 | 2 | Small | 6.3 | |
| Massive | Location | Species | Tags | Size | Depth (m) |
| 1 | 86,22.6 | 2 | Small | 4.7 | |
| 2 | 2,20.6 | 2 | Small | 5.7 | |
| Measurements | |||||
| Length in cm | 16th March 2013 | 23rd March 2013 | |||
| B1T1 | 3.5 | ||||
| B1T2 | 5 | ||||
| B1T3 | 6 | ||||
| B2T1 | 5.6 | 5.1 | |||
| B2T2 | 11.5 | 11 | |||
| B... | |||||
Collected by Gemma, Maita, and Yiling on the 16th of March 2013
| Position | Depth (m) | Time | Temp. (C) | Visibility (m) | pH | EC | TDS (ppm) | ORP (mV) | Salinity | Dis. O2 (ppm) | Nitrates | Phosphates |
| 3,0 | 2.8 | 1813 | 29 | 14 | 8.33 | 17.91 | 12540 | 132 | 1.025 | 8 | – | – |
| 3,100 | 2.9 | 1824 | 28 | 17 | 8.29 | 17.64 | 12270 | 138 | 1.023 | 8 | – | – |
| 12,0 | 11.7 | 1601 | 29 | 14 | 8.25 | 18.09 | 12640 | 131 | 1.023 | 8 | – | – |
| 12,100 | 12.4 | 1833 | 29 | 13 | 8.35 | 16.86 | 11830 | 139 | 1.024 | 8 | – | – |
Water quality measurements
Aim: To measure the quality of the water each time we go to Salang by measuring the pH, dissolved oxygen content, mineral content, temperature and transparency (visibility).
What does measuring these properties of the reef water tell us about the health of the reef? The table below highlights each property we will measure. The significance of the measurement and the optimal range are also listed. Further details are available in the appendix.
| Properties | Why | How | Opti... |
Introduction
With the permanent survey site established we have been looking at what we hope to achieve. This is a long term project so we don’t expect to be able to answer any questions immediately. By monitoring the site regularly we hope to gain a better understanding of the health of the corals and the inhabitants who call Salang their home...
Read MoreCollected by Gemma, Anders, Eric, Maita, Jun and Keith on the 27th of October 2012
| Position | Depth (m) | Time | Temp. (C) | Visibility (m) | pH | EC | TDS (ppm) | ORP (mV) | Salinity |
| 3,0 | 3.8 | 0849 | 30 | 13 | 8.36 | 13.68 | 9620 | 186 | 1.025 |
| 3,50 | 4.3 | 0918 | 30 | ||||||
| 3,100 | 4.0 | 0912 | 30 | 12 | 8.38 | 14.19 | 9850 | 201 | 1.025 |
| 12,0 | 12.5 | 0854 | 30 | 15 | 8.39 | 11.49 | 8060 | 194 | 1.024 |
| 12,50 | 12.7 | 0902 | 30 | ||||||
| 12,100 | 13.5 | 0906 | 30 | 15 | 8.40 | 13.13 | 9120 | 188 | 1.024 |
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