Table 5. Results of the multiple linear regression models based on AIC.
Data utilize are from all sampling locations and dates. DO = Bottom water dissolved oxygen concentration; OPD = Oxygen penetration depth; Chl a:Phaeo = Chlorophyll-a to phaeopigments ratio; C:N = Carbon-to-nitrogen ratio; MGS = Sediment mean grain size; Prokabun = Prokaryotic cell abundance; RSE = Residuals standard error; * Not significant term in the model but still provides best AIC.
| Flux | Intercept | Temp | DO | OPD | Chl a: Phaeo (log10) | C:N (log10) | Porosity | MGS | Prokabun(log10) | r2 (Adj r2) | p-values | RSE |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| O2 | -44.10 | -1.68 | 0.89 | -0.89 | N/A | N/A | -0.14 | NA | 8.01 | 0.78 (0.75) | <0.001 | 1.91 |
| NH4+ (log10) | 3.76* | 0.10 | N/A | 0.04* | 1.76 | N/A | 0.03 | 0.01 | -0.47* | 0.60 (0.54) | <0.001 | 0.37 |
| NO3- | 2450.28* | -89.95 | 90.49* | -33.91* | N/A | 703.99 | N/A | N/A | -334.13* | 0.47 (0.41) | <0.001 | 253.7 |
| NO2- | 20.15* | N/A | -3.88 | 2.79 | -26.52 | 15.46* | N/A | N/A | -9.72* | 0.39 (0.30) | 0.003 | 9.07 |
| Si(OH)4 | -7450.07 | N/A | 1086.48 | N/A | -9272.87 | 3066.59* | N/A | -11.27* | N/A | 0.55 (0.51) | <0.001 | 1452 |
| PO43- | 1901.99 | N/A | 97.39 | -13.60 | -897.19 | N/A | -17.27 | -5.96 | -114.90 | 0.90 (0.88) | <0.001 | 69.49 |