Table 4 Model summaries for the mid Norway spawning grounds during the feeding period. The response variable was depth for all models. The treatment contrast of R was used with the intercept value representing females during the day. Square brackets indicate categorical variables, i.e. males and night, tested against this reference value. Fixed effects; length = length centered – continous variable, sex = sex of fish – categorical variable, DN = day or night – categorical variable. X indicates interaction. The values for the fixed effects are shown at the top of the table with the random effects underneath.

(Intercept)

29.11

21.00–37.22

< 0.001

21.16

15.50–26.83

< 0.001

31.47

21.19–41.75

< 0.001

27.62

21.99–33.26

< 0.001

25.90

16.13–35.66

< 0.001

Length

-0.28

-0.85–0.30

0.351

-0.12

-0.48–0.25

0.532

-0.11

-1.10–0.88

0.830

-0.34

-0.79–0.12

0.147

-0.29

-1.19–0.61

0.528

Sex [Male]

-1.19

-12.64–10.26

0.839

4.30

-2.29–10.90

0.201

-6.77

-19.75–6.22

0.307

1.25

-5.69–8.20

0.724

13.31

0.30–26.31

0.045

DN [Night]

-1.08

-1.16 – -1.00

< 0.001

-0.02

-0.06–0.02

0.402

0.89

0.75–1.04

< 0.001

-5.53

-5.65 – -5.41

< 0.001

-5.47

-5.56 – -5.38

< 0.001

Length × Sex[M]

0.71

-0.28–1.71

0.161

-0.01

-0.51–0.49

0.963

0.41

-0.92–1.74

0.545

0.23

-0.37–0.83

0.460

-0.64

-1.78–0.50

0.275

Length × DN [Night]

0.04

0.03–0.05

< 0.001

0.03

0.03–0.04

< 0.001

-0.20

-0.23 – -0.18

< 0.001

0.45

0.44–0.46

< 0.001

1.30

1.28–1.32

< 0.001

Sex [M] × DN [Night]

-1.50

-1.61 – -1.39

< 0.001

-1.18

-1.22 – -1.13

< 0.001

-3.20

-3.36 – -3.03

< 0.001

4.39

4.27–4.52

< 0.001

4.85

4.58–5.12

< 0.001

Length× Sex[M] × DN [Night]

-0.24

-0.26 – -0.23

< 0.001

-0.04

-0.04 – -0.03

< 0.001

0.38

0.35–0.40

< 0.001

-0.43

-0.45 – -0.42

< 0.001

-1.38

-1.41 – -1.34

< 0.001

Random Effects

σ²

50.95

20.60

66.23

26.42

51.49

τ₀₀

19.16 _{Year: Jday}

1.95 _{Year: Jday}

69.18 _{Year: Jday}

18.77 _{Year: Jday}

15.08 _{Year: Jday}

0.00 _Jday

1.34 _Jday

4.51 _Jday

9.86 _Jday

3.59 _Jday

334.36 _Serial

114.29 _Serial

198.60 _Serial

130.21 _Serial

180.13 _Serial

ICC

0.85

0.80

0.86

0.79

N

47 _Serial

65 _Serial

26 _Serial

61 _Serial

22 _Serial

3 _Year

3 _Year

3 _Year

3 _Year

3 _Year

214 _Jday

214 _Jday

214 _Jday

214 _Jday

214 _Jday

Observations

301,031

885,197

280,933

301,169

144,652

Marginal R² / Conditional R²

0.185 / NA

0.045 / 0.858

0.057 / 0.816

0.023 / 0.861

0.216 / 0.839