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. 2015 Sep 14;10(9):e0137996. doi: 10.1371/journal.pone.0137996

Fig 4. RDA ordination plots show the correlation between the M. oxyfera-like bacteria community structure and environmental factors using the 16S rRNA (a) and pmoA (b) gene sequences from Yellow River Estuary sediments.

Fig 4

The correlations between the environmental factors and RDA axes are represented by the length and angle of the arrows. Depth: depth of the overlying water, TN: total nitrogen, TP: total phosphorus, NH4 +-N: ammonium, NO3 −-N: nitrate, TOC: total organic carbon, BW: bottom water, Sal: salinity, and DO: dissolved oxygen.