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The Data

Survey Data 27th July 2013

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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Survey Data 12th May 2013

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
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Survey Data 3rd May 2013

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
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Survey Data 29th March 2013

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
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Survey Data 23rd March 2013

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
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Coral Tagging Measurements

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...
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Survey Data 16th March 2013

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
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Survey Methodologies

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...
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Survey Questions

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...

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Survey Data 27th October 2012

Collected 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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