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