Table 1: Statistics for multiple regression explaining Robertson Creek Hatchery chinook age and pond specific return variability using empirical descriptions of prey and predator variability. padj=0.05•153-1=3.27E-04. NWCVI- Northwest coast Vancouver Island.

Parameter Estimate Std. Error p β VIF
Age 2; Adj. R2=0.49; p=1.24E-21; n=144
Intercept -6.591 0.1726 3.02E-76 0
Pacific mackerel CPUE -0.482 0.0792 1.01E-08 -0.37 1.04
NWCVI sea lion abundance -0.001 0.00001 7.15E-21 -0.68 1.04
           
Age 3; Adj. R2=0.43; p=3.10E-17; n=133
Intercept -4.522 0.1696 3.18E-55 0
Pacific mackerel CPUE -0.295 0.0840 6.15E-04 -0.23 1.03
NWCVI sea lion abundance -0.001 0.00001 7.91E-18 -0.66 1.03
           
Age 4; Adj. R2=0.59; p=1.38E-25; n=129
Intercept -3.857 0.1159 2.91E-64 0
Pacific mackerel CPUE -0.394 0.0522 7.65E-12 -0.43 1.04
NWCVI sea lion abundance -0.001 0.00001 4.99E-24 -0.72 1.04
           
Age 5; Adj. R2=0.59; p=2.30E-24; n=122
Intercept -4.776 0.1488 1.87E-60 0
Pacific mackerel CPUE -0.430 0.0712 1.86E-08 -0.36 1.03
NWCVI sea lion abundance -0.002 0.00001 5.58E-24 -0.75 1.03

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