Table 3. Similarity Percentage Analysis (SIMPER) for 10 most significant OTUs driving differences between the CO2 seep and control site.
| Phylum | Most resolved taxonomy (Blastn) | “Otu” |
Higher abundance |
Fold difference | Rank | |
|---|---|---|---|---|---|---|
| High pCO2 | Ambient | |||||
| A. millepora dissimilarity=85.17% | ||||||
| Actinobacteria | Corynebacterium vitaeruminis | Otu0008 | x | 1.02 | 9 | |
| Proteobacteria | ||||||
| Alphaproteobacteria | Brevundimonas sp. | Otu0010 | x | 2.46 | 10 | |
| Gammaproteobacteria | ||||||
| Hahellaceae | unclassified | Otu0001 | x | 0.53 | 1 | |
| Hahellaceae | unclassified | Otu0005 | x | 0.24 | 7 | |
| Hahellaceae | Endozoicomonas sp. | Otu0002 | x | 6.65 | 2 | |
| Hahellaceae | Endozoicomonas sp. | Otu0003 | x | 4.39 | 3 | |
| Hahellaceae | Endozoicomonas sp. | Otu0007 | x | 5.12 | 4 | |
| Hahellaceae | Endozoicomonas numazuensis | Otu0006 | x | 3.89 | 5 | |
| Halomonadaceae | Chromohalobacter salexigens | Otu0013 | x | 3.88 | 8 | |
| Bacteria | unclassified | Otu0004 | x | 0.99 | 6 | |
| P. cylindrica dissimilarity=94.8% | ||||||
| Actinobacteria | Corynebacterium vitaeruminis | Otu0007 | x | 1.6 | 6 | |
| Bacteroidetes | Flavobacteriaceae | Otu0006 | x | 3.83 | 7 | |
| Cyanobacteria | Oscillatoriophycideae | Otu0001 | x | 3.66 | 1 | |
| Proteobacteria | ||||||
| Alphaproteobacteria | unclassified | Otu0018 | x | 3.97 | 9 | |
| Gammaproteobacteria | ||||||
| Alteromonadaceae | Candidatus Endobugula | Otu0004 | x | 5.23 | 4 | |
| Chromatiaceae | Rheinheimera sp.NG3 | Otu0013 | x | 4.04 | 10 | |
| Pseudoalteromonadaceae | Pseudoalteromonas sp. RKVR13 | Otu0005 | x | 5.22 | 3 | |
| Pseudoalteromonadaceae | Pseudoalteromonas sp.EF1A-B164 | Otu0009 | x | 4.47 | 5 | |
| Bacteria | unclassified | Otu0003 | x | 5.37 | 2 | |
| Bacteria | unclassified | Otu0002 | x | 4.48 | 8 | |
| C. singaporensis avg. dissimilarity=71.85% | ||||||
| Cyanobacteria | Synechococcus sp. | Otu0001 | x | 13.68 | 1 | |
| Proteobacteria | ||||||
| Deltaproteobacteria | Entotheonellaceae | Otu0008 | x | 3.63 | 6 | |
| Gammaproteobacteria | unclassified | Otu0004 | x | 4.54 | 2 | |
| unclassified | Otu0005 | x | 3.74 | 5 | ||
| unclassified | Otu0010 | x | 3.41 | 8 | ||
| Bacteria | unclassified | Otu0002 | x | 5.69 | 3 | |
| SBR1093 | Otu0003 | x | 4.64 | 4 | ||
| unclassified | Otu0006 | x | 3.27 | 7 | ||
| PAUC34f | Otu0007 | x | 2.57 | 9 | ||
| unclassified | Otu0009 | x | 2.96 | 10 | ||
| Cinachyra sp. avg. dissimilarity=79.42% | ||||||
| Actinobacteria | Acidimicrobiales | Otu00030 | x | 3.76 | 10 | |
| Cyanobacteria | Synechococcus | Otu00001 | x | 16.13 | 1 | |
| Synechococcus | Otu00002 | x | 2.07 | 6 | ||
| Proteobacteria | unclassified | Otu00005 | x | 8.45 | 2 | |
| Gammaproteobacteria | unclassified | Otu00010 | x | 7.07 | 3 | |
| unclassified | Otu00003 | x | 2.64 | 4 | ||
| HTCC2089 | Otu00006 | x | 3.19 | 8 | ||
| Nitrospirae | Nitrospiraceae | Otu00007 | x | 1.1 | 5 | |
| Bacteria | unclassified | Otu00016 | x | 3.91 | 7 | |
| Bacteria | PAUC34f | Otu00012 | x | 2.67 | 9 | |
| S. massa avg. dissimilarity=47.06% | ||||||
| Alphaproteobacteria | Pelagibacteraceae | Otu0006 | x | 2.01 | 5 | |
| Pelagibacteraceae | Otu0004 | x | 0.75 | 10 | ||
| Cyanobacteria | Synechococcus sp. | Otu0001 | x | 2.57 | 3 | |
| Synechococcaceae | Otu0012 | x | 0.64 | 6 | ||
| Synechococcaceae | Otu0030 | x | 0.45 | 9 | ||
| Proteobacteria | ||||||
| Deltaproteobacteria | unclassified | Otu0005 | x | 4.59 | 2 | |
| Gammaproteobacteria | Candidatus Portiera | Otu0017 | x | 1.44 | 8 | |
| Thiohalorhabdales | Otu0003 | x | 0.97 | 4 | ||
| unclassified | Otu0002 | x | 4.40 | 1 | ||
| unclassified | Otu0009 | x | 1.05 | 7 | ||
Abbreviation: OTUs, operational taxonomic units.