Research Article
Mangrove Rehabilitation on Highly Eroded Coastal Shorelines at Samut Sakhon, Thailand
Table 1
Results of water analyses conducted in April 2001, December 2001, and June 2002.
| | April 2001 | December 2001 | June 2002 | | ST1 | ST4 | ST1 | ST4 | ST4 |
| Water temperature (°C) | 30.4 | 31.1 | 27.0 | 28.0 | 32.6 | Dissolved oxygen (mg L−1) | 3.8 | 4.5 | 7.1 | 5.4 | 3.8 | Salinity (ppt) | 21.8 | 21.3 | 26.1 | 27.7 | 28.5 | pH | 8.00 | 8.40 | 7.85 | 7.96 | 8.29 | Ammoniacal nitrogen (mg L−1) | 0.012 | 0.021 | 1.005 | 0.014 | 0.010 | Nitrite-nitrogen (mg L−1) | 0.008 | 0.028 | 0.199 | 0.014 | 0.005 | Nitrate-nitrogen (mg L−1) | 0.009 | 0.012 | 0.024 | 0.005 | 0.028 | Total dissolved nitrogen (mg L−1) | 0.607 | 0.691 | 2.540 | 1.165 | 0.375 | Dissolved organic nitrogen (mg L−1) | 0.579 | 0.630 | 1.312 | 1.132 | 0.332 | Particulate organic nitrogen (mg L−1) | 1.320 | 1.139 | 1.774 | 1.577 | 0.847 | Total nitrogen (mg L−1) | 1.927 | 1.830 | 4.314 | 2.742 | 1.222 | Dissolved inorganic phosphorus (mg L−1) | 0.091 | 0.086 | 0.425 | 0.150 | 0.029 | Total dissolved phosphorus (mg L−1) | 0.107 | 0.086 | 0.852 | 0.819 | 0.078 | Dissolved organic phosphorus (mg L−1) | 0.017 | 0.000 | 0.427 | 0.669 | 0.049 | Particulate phosphorus (mg L−1) | 0.218 | 0.167 | 0.315 | 0.109 | 0.021 | Total phosphorus (mg L−1) | 0.325 | 0.253 | 1.167 | 0.928 | 0.099 | Particulate organic carbon (mg L−1) | 7.98 | 6.63 | 10.2 | 4.99 | 5.04 | Chlorophyll a (μg L−1) | 28.1 | 16.3 | 11.3 | 8.44 | 10.2 | BOD (mg L−1: 5 days at 20°C) | 4.3 | 3.3 | 4.9 | 4.3 | 7.1 |
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