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Table 3 Pearson’s correlations between the nutrient concentrations, chlorophyll a, Prochlorococcus abundance and the abundance of non-pigmented bacteria (B) and bacterial production (BP) during isothermal and stratified water column period

From: Dynamics of prokaryotic picoplankton community in the central and southern Adriatic Sea (Croatia)

Complete data set Temperature (°C) Salinity Nitrate (μM) Nitrite (μM) Ammonium (μM) SRP* (μM) Prochlorococcus (×103 cells mL−1) Chl a (mg m−3)
Coastal sea, N = 131, P < 0.05 (isothermal period)
 Pearson’s correlation with B 0.24 0.22 0.09 −0.07 0.05 0.23 0.22 0.87
 Pearson’s correlation with BP 0.09 0.06 0.22 0.22 0.06 0.09 0.37 0.26
Coastal sea, N = 239, P < 0.05 (stratified period)
 Pearson’s correlation with B 0.12 0.01 0.14 0.26 0.30 0.05 0.31 −0.03
 Pearson’s correlation with BP −0.01 0.01 0.02 0.14 0.05 0.04 0.15 0.04
Open sea, N = 45, P < 0.05 (isothermal period)
 Pearson correlation with B 0.19 −0.13 −0.26 0.22 0.10 −0.10 0.51 0.21
 Pearson’s correlation with BP 0.44 −0.06 0.53 −0.26 −0.04 0.09 −0.14 0.68
Open sea, N = 103, P < 0.05 (stratified period)
 Pearson’s correlation with B 0.14 −0.18 0.32 −0.02 0.22 0.27 0.29 −0.08
 Pearson’s correlation with BP −0.12 −0.06 0.27 0.07 −0.04 −0.07 −0.02 0.38
  1. Statistically significant correlations are presented bold
  2. SRP soluble reactive phosphate