Table 3 Summary of the models best describing the relationship between eDNA signals and fish counts during the actual spawning migration.

From: Monitoring spawning migrations of potamodromous fish species via eDNA

Model #

Predictor variable

Parameter estimate

SE

Lower 95% CI

Upper 95% CI

t-value

p-value

DD3

intercept

−272.72

754.62

−1,751.75

1,206.32

−0.36

0.72

mean fish counts whole ZA / discharge

3.66

0.35

2.96

4.35

10.32

<0.001

EP3

intercept

0.31

0.39

−0.45

1.08

0.80

0.42

ln(mean fish counts whole ZA / discharge)

0.72

0.06

0.60

0.84

12.08

<0.001

EP4

intercept

0.10

0.52

−0.91

1.12

0.20

0.84

ln(mean fish counts ZAIII & upstream / discharge)

0.76

0.08

0.59

0.93

8.96

<0.001

  1. Model DD3 (digital PCR data) and model EP3 (CE-PCR data) are based on point 1 eDNA samples and fish counts in the entire river stretch; model EP4 (CE-PCR) is based on data from section III and upstream. Parameter estimates, standard errors (SE), lower and upper confidence intervals, t-values and p-values are displayed.
Back to article page