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Table 7 Cox proportional hazards models examining fish survival for fish tagged in situ (n = 70) at both 4 and 6 days after tagging

From: Under pressure: comparing in situ and boat tagging methods using time-to-event analyses

Days after tagging

Hazards model

AICc

ΔAICc

χ2

df

p

4

Month

40.38

0.00

3.26

1

0.07

Fish size + month

41.49

1.11

4.51

2

0.10

Handling time

41.65

1.27

2.34

1

0.10

Depth + month

41.99

1.61

3.96

2

0.10

Null

42.19

1.81

   

Handling time + fish size

42.30

1.92

3.78

2

0.20

Handling time + family

42.74

2.36

3.25

2

0.20

Fish size + family + month

43.24

2.86

5.05

3

0.20

Depth + family + month

43.76

3.38

4.46

3

0.20

Handling time + fish size + family

43.79

3.41

4.45

3

0.20

Handling time + depth + family

44.77

4.39

3.41

3

0.30

Tagging time + fish size + family + month

45.21

4.83

5.09

4

0.30

Handling time + fish size + surgery count + family

45.57

5.19

4.52

4

0.30

Tagging time + depth + family + month

45.92

5.54

4.49

4

0.30

Handling time + depth + surgery count + family

46.97

6.59

3.44

4

0.50

Tagging time + fish size + surgery count + family + month

47.53

7.15

5.11

5

0.40

6

Fish size + month

57.43

0.00

5.69

2

0.06

Fish size

57.84

0.41

3.17

1

0.08

Handling time + fish size + surgery count

57.87

0.44

5.41

3

0.10

Fish size + surgery count

58.37

0.94

4.45

2

0.10

Month

58.70

1.27

2.03

1

0.20

Null

58.86

1.43

   

Fish size + surgery count + month

58.90

1.47

6.48

3

0.09

Depth + month

59.52

2.09

3.5

2

0.20

Handling time + fish size + surgery count + family

59.54

2.11

5.67

4

0.20

Surgery count

60.17

2.74

1.15

1

0.30

Depth + surgery count

60.92

3.49

1.72

2

0.40

Fish size + surgery count + family + month

60.95

3.52

6.68

4

0.20

Depth + surgery count + month

61.02

3.59

3.94

3

0.30

Handling time + depth + surgery count

62.10

4.67

2.32

3

0.50

Tagging time + depth + surgery count + month

62.88

5.45

4.62

4

0.30

Tagging time + fish size + surgery count + family + month

63.19

5.76

7.5

5

0.20

Handling time + depth + surgery count + family

64.08

6.65

2.64

4

0.60

Tagging time + depth + surgery count + family + month

64.97

7.54

4.87

5

0.40

  1. Models are ranked by AICc values. All models include probability of presence as the dependent variable and list independent variables included in each individual model. p-values are from the log-rank test
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Animal Biotelemetry

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