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. 2022 Apr 11;8:22. doi: 10.1038/s41522-022-00288-x

Fig. 5. Identifying the keystone taxa of each bacterial networks and their associations with water quality and shrimp growth parameters.

Fig. 5

Keystone taxa (a) and their relative abundances (b) in bacterial communities of CK (n = 12), CN10 (n = 18) and CN15 (n = 18) groups. c The relationships of keystone OTUs and the OTUs they recruited in CK (n = 12), CN10 (n = 18) and CN15 (n = 18) groups. d Pearson’s correlation analysis between keystone OTUs, water quality parameters, biofloc volume and shrimp growth performance. NH4-N, ammonium-N; NO2-N, nitrite-N; NO3-N, nitrate- N; PO4-P, phosphate-P; COD, chemical oxygen demand; Chl-a, Chlorophyll a; SR, survival rate; SGR, specific growth rate; Yield, total yield of shrimp each pond. Different asterisks indicate a significant difference at *p < 0.05, **p < 0.01, and ***p < 0.001 in (d) based on Student’s t test. CK: without sucrose addition; CN10: the C/N ratio of about 10:1 obtained by sucrose addition; CN15: the C/N ratio of about 15:1 obtained by sucrose addition.