Table 3 Summary of the minimum adequate models of factors influencing the migration speed and probability in the tidal area and estuary
Parameter | χ2-value/F (Df, Fisher scoring index) | Effect direction | p-Value | Correlation with (correlation factor ρ) | |
|---|---|---|---|---|---|
MSF | Current velocity [m/s] | F(1,5) = 238.530 | + | < 0.001*** | WL diff. (− 0.93) |
Turbidity [NTU] | F(1,5) = 5.096 | − | 0.024* | ||
Precipitation [mm] | F(1,5) = 1.993 | + | 0.158 | ||
MSL | Current velocity [m/s] | F(1,5) = 238.530 | + | < 0.001*** | WL diff. (− 0.96) |
Salinity [‰] | F(1,5) = 1.993 | − | 0.158 | El. Conductivity (0.87) | |
Water temperature [°C] | F(1,5) = 5.096 | + | 0.024* | O2-Conc. (− 0.75) | |
MAF | Accumulated Precipitation [mm] | χ2(1,10) = 2.0738 | + | 0.150 | |
Current velocity [m/s] | χ2(1,10) = 12.451 | + | < 0.001*** | WL diff. (− 0.87) | |
Time since release [h] | χ2(1,10) = 26.159 | − | < 0.001*** | ||
MAL | Current velocity [m/s] | χ2(1,10) = 10.457 | + | 0.001 ** | WL diff. (− 0.90) |
Time since Release [h] | χ2(1,10) = 25.423 | − | < 0.001*** |