TABLE 3.
Relative abundance (based on DNA) and activity (based on RNA) of the 40 predominant OTUs identified on C. pagurus, i.e., the 20 most abundant OTUs in nonaffected areas (NA) and 20 in black spot syndrome affected areas (BS) were considereda
| 20 most abundant OTUs in NA | Relative abundance (%) DNA |
Wald test | Relative abundance (%) DNA |
Wald test | ||
|---|---|---|---|---|---|---|
| NA | BS | NA | BS | |||
| Alphaproteobacteria | ||||||
| OTU_2 (Loktanella)b | 0.82b | 2.95b | −4.17b,d | 1.06b | 5.82b | −5.43b,e |
| OTU_7 (Robiginitomaculum) | 4.18 | 2.31 | 0.80 | 2.00 | 1.31 | 0.64 |
| OTU_16 (Ahrensia) | 1.64 | 0.77 | 1.13 | 1.66 | 0.71 | 0.67 |
| OTU_15 (Anderseniella) | 1.30 | 1.33 | −0.61c | 1.20 | 1.35 | −1.67 |
| OTU_25 (Hyphomonadaceae) | 0.93 | 0.72 | 0.39 | 1.07 | 0.74 | 1.04 |
| Gammaproteobacteria | ||||||
| OTU_29 (Xanthomonadales) | 0.99 | 0.38 | 0.66 | 0.62 | 0.19 | 1.42 |
| OTU_24 (Granulosicoccus) | 1.16 | 0.28 | 1.65 | 1.49 | 0.42 | 1.63 |
| OTU_4a (Perspicuibacter) | 3.41b | 1.09b | −2.61b,c | 3.85b | 1.18b | −3.90b,d |
| OTU_13 (Thiotrichaceae) | 1.20 | 1.33 | −0.34 | 0.57 | 0.88 | −0.04c |
| OTU_60 (Cellvibrionaceae) | 0.83 | 0 | 2.51 | 0.42 | 0 | −0.99 |
| Flavobacteriia | ||||||
| OTU_19 (Tenacibaculum) | 2.30 | 0.19 | −0.22 | 0.87 | 0.11 | −0.18 |
| OTU_10 (Maritimimonas) | 2.07 | 2.46 | 0.21 | 0.74 | 1.15 | 0.47c |
| OTU_37 (Aquibacter) | 1.02 | 0.13 | 2.00 | 0.50 | 0.06 | 1.49 |
| OTU_52 (Maribacter) | 0.93 | 0.10 | 2.26 | 0.20 | 0.05 | 1.91 |
| Acidimicrobiia | ||||||
| OTU_14 (Sva0996 marine group) | 2.39 | 0.58 | 1.79 | 2.09 | 0.73 | 1.26 |
| OTU_21 (Acidimicrobiales) | 1.54 | 0.44 | 1.53 | 1.40 | 0.55 | 1.33 |
| Nitrospira | ||||||
| OTU_18 (Nitrospira) | 1.30 | 0.38 | 1.65 | 1.84 | 0.36 | 2.05 |
| Bacilli | ||||||
| OTU_41 (Granulicatella) | 1.03 | 1.10 | 1.03 | 0.40 | 0.82 | −0.36 |
| Sphingobacteriia | ||||||
| OTU_38 (Portibacter) | 0.86 | 0.43 | 1.92 | 0.51 | 0.29 | 1.11 |
| Mollicutes | ||||||
| OTU_6 (Mycoplasma) | 4.46 | 9.20 | 0.69 | 3.98 | 6.52 | 0 |
| 20 most abundant OTUs in BS | Relative abundance (%) DNA |
Wald test | Relative abundance (%) DNA |
Wald test | ||
| NA | BS | NA | BS | |||
| Alphaproteobacteria | ||||||
| OTU_2 (Loktanella)b | 0.82b | 2.95b | −4.16b,d | 1.06b | 5.83b | −5.43b,e |
| OTU_8 (Pelagibius) | 0.02 | 2.22 | −4.69c | 0.04 | 2.25 | −5.28 |
| OTU_7 (Robiginitomaculum) | 4.18 | 2.31 | 0.80 | 2 | 1.31 | 0.64 |
| OTU_17 (Sulfitobacter) | 0.32 | 0.93 | −1.94 | 0.44 | 0.85 | −2.27 |
| OTU_15 (Anderseniella) | 1.30 | 0.78 | −0.61 | 1.20 | 1.35 | −1.67 |
| OTU_16 (Ahrensia) | 1.64 | 0.77 | 1.13 | 1.66 | 0.71 | 0.67 |
| OTU_23 (Thalassobius) | 0.62 | 0.96 | −0.99 | 0.62 | 0.95 | −0.43 |
| Gammaproteobacteria | ||||||
| OTU_3 (Perspicuibacter) | 0.05 | 4.98 | −3.13f | 0.02 | 4.78 | −4.07 |
| OTU_4 (Perspicuibacter)b | 3.41b | 1.09b | −2.61b,c | 3.85b | 1.18b | −3.90b,d |
| OTU_5 (Eionea) | 0 | 1.67 | −0.90 | 0 | 1.09 | −6.08 |
| OTU_11 (Cocleimonas) | 0.76 | 1.32 | −0.74 | 0.37 | 0.89 | 0.04 |
| OTU_12 (Arenicella)b | 0.23b | 1.38b | −4.17b,d | 0.20b | 1.01b | −4.87b,e |
| OTU_13 (Thiotrichaceae) | 1.20 | 1.33 | −0.34 | 0.57 | 0.88 | −0.04 |
| OTU_9 (Cellvibrionaceae)b | 0.01b | 2.16b | −6.43b,e | 0a | 2.12b | −11.47b,e |
| Flavobacteriia | ||||||
| OTU_1 (Aquimarina)b | 0.31b | 18.67b | −6.86b,e | 0.18b | 14.51b | −7.29b,e |
| OTU_10 (Maritimimonas) | 2.07 | 2.46 | 0.21 | 0.74 | 1.15 | 0.47 |
| Mollicutes | ||||||
| OTU_6 (Mycoplasma) | 4.46 | 9.20 | 0.69 | 3.98 | 6.52 | 0 |
| Bacilli | ||||||
| OTU_41 (Granulicatella) | 1.03 | 1.10 | 1.03b | 0.40 | 0.82 | −0.36 |
| Betaproteobacteria | ||||||
| OTU_68 (Comamonadaceae) | 0.22 | 1.10 | −1.17 | 0.26 | 1.17 | −0.78 |
| Deltaproteobacteria | ||||||
| OTU_20 (Eel-36e1D6) | 0.03 | 0.75 | −1.55 | 0.03 | 2.84 | −2.71 |
Classification of OTUs is given on class level and lowest definable taxonomic level (in brackets).
Significant changes in abundance based on Wald statistics.
Significance for differences in abundance based on Wald statistic was not calculated due to violation of negative binomial distribution or low counts.
P < 0.01, with the significance level after false discovery rate adjustment following Benjamini and Hochberg (53).
P < 0.001, with the significance level after false discovery rate adjustment following Benjamini and Hochberg (53).
P < 0.05, with the significance level after false discovery rate adjustment following Benjamini and Hochberg (53).