Fig. 3: nifH abundance of diazotroph MAGs in the Arctic Ocean.
From: Distribution and survival strategies of endemic and cosmopolitan diazotrophs in the Arctic Ocean
a. Spatial and vertical distribution of nifH abundance of Arc-UCYN-A2, Arc-Alpha, and Alpha-04. The upper panels show the spatial distribution of the maximum of each nifH abundance in 2015 (green), 2016 (blue circle), and 2017 (yellow). The lower panels show the vertical distribution of each nifH abundance by the year. The nifH of Arc-Alpha and Alpha-04 were not detected except the surface water. The nifH of Arc-Bactero, Arc-Gamma-01, Alpha-02, and C. chwakensis were not detected in our study region. b. Relationship between nifH abundance of Arc-UCYN-A2 and temperature. The regression line was generated from data pooled from all years (2015 (green), 2016 (blue circle), and 2017 (yellow)).
