TABLE 4.
Spearman rank correlations among abundances of the nine most abundant bacterial groups and the dissolved nutrients and eutrophication indicatorsa
| Group | Correlationa |
||||
|---|---|---|---|---|---|
| Heter. bact. | Chl-α concn | DP concn | DN concn | DOC concn | |
| Pelagibacteraceae | −0.917** | −0.705** | NS | −0.793** | −0.766** |
| SAR86 | −0.670** | NS | NS | −0.613* | −0.653** |
| Alteromonadaceae | 0.884** | 0.737** | NS | 0.745** | 0.697** |
| Rhodobacteraceae | 0.693** | 0.552* | NS | 0.721** | 0.556* |
| Cryomorphaceae | 0.697** | 0.556* | NS | NS | 0.585* |
| Flavobacteriaceae | NS | NS | NS | NS | NS |
| Synechococcaceae | NS | NS | NS | NS | NS |
| OM60 | NS | NS | NS | NS | NS |
| Colwelliaceae | NS | NS | NS | NS | 0.624* |
Heter. bact., number of heterotrophic bacteria; Chl-α, chlorophyll alpha; DP, DN, and DOC, dissolved phosphorus, nitrogen, and organic carbon, respectively; NS, nonsignificant correlation. Coefficient values of the rho statistic in bold represent significant correlations at the 0.05 (*) or 0.01 (**) level.