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Fig. 4 | Helgoland Marine Research

Fig. 4

From: Spatiotemporal variation of the bacterioplankton community in the German Bight: from estuarine to offshore regions

Fig. 4

Principal coordinates analysis (PCoA) of ARISA OTUs of the particle-attached fraction, based on Jaccard index. PCoA scores of the first PCoA axis (a), second PCoA axis (b) and third PCoA axis (c) are depicted in contour plots. The horizontal axis depicts the distance (km) of sampling sites to Helgoland Island which was set to 0 km. Increasing distance to the left represents sampling sites along the P8 transect, increasing distance to the right represents sampling sites along the Elbe transect. The vertical axis refers to the sampling date; color code reflects PCoA scores of respective samples with blue colors indicating lower scores and red colors indicating higher scores. Standardized regression coefficients (b*) of PCA axes of MRA using scores of PCoA axes as dependent and scores of PCA axis as independent variables are depicted next to the corresponding contour plots. MRA were done at a significance level of p < 0.05, R 2adj values are given. Asterisks indicate significance of regression coefficient

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