Table 1. Regression statistics for the Arrhenius plots

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Regression statistics for the Arrhenius plots showing relationship between temperature (1/Kelvin x 1 000) and bacterial growth (BP – ln of bacterial production; ...
Table 1. Regression statistics for the Arrhenius plots showing relationship between temperature (1/Kelvin x 1 000) and bacterial growth (BP – ln of bacterial production; SCP – ln of bacterial specific cell production), Ea - values of activation energy, where R is universal gas constant (8.314 J mol-1 K-1); Q3 – temperature coefficients, the factor by which bacterial growth rate changes as a consequence of increasing the temperature by 3 °C; and parameters of multiple regressions of BP with temperature and concentration of PO4 as independent variables; P-LIM – samples from phosphorus limited sites; NOT-LIM – samples from sites without phosphorus limitation (criteria for P-limitation are explained in text); underlined values indicate maximum proportion of variability explained by regressions; BA – bacterial abundance; rp – partial correlation; *P < 0.0001. All data

16o

> 16oC

P-LIM

NOT-LIM

3 583

1 645

1 938

2 759

824

17.193.97 0.05590.094 0.670.64 21.4421.07 45.8260.53

13.721.58 0.05260.088 0.550.36 15.8614.13 42.6167.67

20.142.84 0.05890.098 0.770.79 26.1724.55 48.5553.62

17.083.88 0.02800.018 0.640.63 13.398.13 28.7822.18

17.464.38 0.16870.164 0.830.74 47.6030.57 91.3698.69

ARRHENIUS PLOT: 1.Bacterial production Intercept (a) Slope (-Ea/R) R2 Ea (kJ mol-1)

34.610 -9.269 0.214* 77.06

113.938 -32.006 0.372* 266.10

25.223 -6.533 0.077* 54.32

31.840 -8.550 0.257* 71.08

37.536 -9.864 0.321* 82.01

2.Specific cell production: Intercept (a) Slope (-Ea/R) R2 Ea (kJ mol-1)

6.061 -6.809 0.093* 56.61

103.777 -34.817 0.323* 289.47

-6.455 -3.157 0.014* 26.25

3.924 -6.268 0.103* 52.11

7.170 -6.924 0.113* 57.57

Temperature coefficient: Q3 for BP Q3 for SCP

1.39 1.27

3.24 3.59

1.26 1.12

1.35 1.24

1.41 1.27

Multiple regression: rp (ln BP vs. Temp oC) rp (ln BP vs. ln PO4) Intercept (a) b1 (Temperature) b2 (ln PO4) Multiple correlation (R)

0.380* 0.595* 3.883 0.058 0.659 0.750*

0.557* 0.580* -0.010 0.288 0.463 0.759*

0.164* 0.847* 4.740 0.023 0.701 0.861*

0.380* 0.644* 3.883 0.058 0.659 0.750*

0.563* -0.039 1.432 0.116 -0.069 0.563*

No. of data sets Parameters (meanSD): Temperature (oC) PO4 (M) BA (x106 cells mL-1) BP (g C L-1 day-1) SCP x10-9 (gC cell-1 day-1)

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