Table 1 Mantel and partial Mantel tests based on Pearson correlations, with 10⁶ permutations, using Bray–Curtis distances for the microbial communities and Euclidean distances for spatial (latitude, longitude, depth), temporal (day of the year) and physicochemical (flow, irradiance, temperature, salinity, N, P, Si, SPM, Chla, EPS, TEP) matrices. The physicochemical matrix is called Chemistry in the table

Bacteria ~ Eukaryotes

 < 0.001

Bacteria ~ Eukaryotes + Chemistry + Space + Time

 < 0.001

Bacteria ~ Chemistry

 < 0.001

Bacteria ~ Chemistry + Eukaryotes + Space + Time

 < 0.001

Bacteria ~ Space

0.672

Bacteria ~ Space + Chemistry + Eukaryotes + Time

0.708

Bacteria ~ Time

 < 0.001

Bacteria ~ Time + Space + Chemistry + Eukaryotes

 < 0.001

Eukaryotes ~ Bacteria

 < 0.001

Eukaryotes ~ Bacteria + Chemistry + Space + Time

 < 0.001

Eukaryotes ~ Chemistry

 < 0.001

Eukaryotes ~ Chemistry + Bacteria + Space + Time

0.469

Eukaryotes ~ Space

0.559

Eukaryotes ~ Space + Chemistry + Bacteria + Time

0.390

Eukaryotes ~ Time

 < 0.001

Eukaryotes ~ Time + Space + Chemistry + Bacteria

0.027

Chemistry ~ Space

0.148

Chemistry ~ Time

 < 0.001