Table 1.
Distribution of clones related to ammonia-oxidizing betaproteobacteria over the different operational taxonomic units (OTUs), impoundments, sampling years, and Black mangrove habitats.
| OTU | Impoundment |
Sampling years |
Black mangrove habitat |
|||||
|---|---|---|---|---|---|---|---|---|
| 23 | 24 | 2008 | 2009 | 2010 | Dwarf | Sparse | Dense | |
| 01 | 136 | 248 | 173 | 145 | 66 | 167 | 89 | 128 |
| 02 | 5 | 12 | 11 | 3 | 3 | 7 | 9 | 1 |
| 03 | 44 | 18 | 6 | 35 | 21 | 20 | 33 | 9 |
| 04 | 72 | 121 | 76 | 41 | 76 | 25 | 59 | 109 |
| 05 | 2 | 2 | 3 | 1 | 0 | 0 | 2 | 2 |
| 06 | 80 | 77 | 29 | 71 | 57 | 12 | 101 | 44 |
| 07 | 1 | 3 | 2 | 1 | 1 | 0 | 2 | 2 |
| 08 | 4 | 2 | 0 | 4 | 2 | 3 | 2 | 1 |
| 09 | 8 | 1 | 0 | 9 | 0 | 8 | 0 | 1 |
| 10 | 3 | 2 | 1 | 4 | 0 | 3 | 0 | 2 |
| 11 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 |
| 12 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 |
| 13 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 |
| Total clones | 356 | 488 | 302 | 314 | 228 | 245 | 298 | 301 |
OTUs are based on 97% mutual similarity of their 16S rRNA gene (418 bp).