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B. I. van Tussenbroek, J. A. Vonk, J. Stapel et al.
Table 1. Sediment nutrient addition experiments in Thalassia meadows. The pore water and water column nutrient concentrations are in
µM, plant nutrient contents
as % DW.; –, not determined; bdl, below detection level. Please note that detection of limitation is not always consistent with plant nutrient contents. See text for
more details.
Plant
Nutrient
Site
Sediment
Pore water
Water column
Plant leaf
rhizome
limited
Reference
Type
Enrichment PO
3−
4
NH
+
4
NO
−
3
PO
3−
4
NH
+
4
NO
−
3
P (%) N (%) P (%) N (%) P
N
NO
−
2
NO
−
2
T. testudinum
Corpus Christy
Bay
Sand 91%
None
–
79.8 –
–
1.16 0.84 –
2.6
–
1.2
–
No Lee and Dunton
(2000)
Silt 9%
N
–
756.2 –
–
1.16 0.84 –
2.7
–
1.3
–
Laguna Madre
Sand 71%
None
–
31.3 –
–
1.22 0.84 –
1.75
–
0.8
–
Yes
Silt 29%
N
–
738.9 –
–
1.22 0.84 –
2.6
–
1.1
–
T. hemprichii
Barang Lompo
Coral sand
None
7.5
82.2 3.4
0.8
1.4
0.9
0.17
2.7
0.09
0.5
No No Erftemeijer et al.
(1994)
N + P
13
109
3.4
0.8
1.4
0.9
0.12
3.0
0.07
0.7
Kudingareng
Lompo
Coral sand
None
7.3
50.9 –
–
–
–
0.15
2.1
0.09
1.2
N + P
∼12
–
–
–
–
–
0.19
2.1
0.16
1.1
Palanro
Terrigenous None
8.7
23.0 5.2
3.3
bdl
1.5
0.14
1.6
0.12
0.6
N + P
∼14
–
5.2
3.3
bdl
1.5
0.15
1.7
0.10
0.6
Silaqui
Coral sand
None
0.9
8.3 1.4
0.2
1.8
0.6
0.22
2.5
0.15
1.1
Yes Yes Agawin et al.
(1996)
N + P
55.9 111.3 2.3
0.2
1.8
0.6
0.28
2.9
0.22
2.0
Lucero
Coral sand
None
0.6
10.2 1.5
0.1
1.7
0.5
0.23
2.7
0.12
1.0
N + P
35.7
40.1 1.5
0.1
1.9
0.6
0.30
2.8
0.20
1.8