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Table 3 Descriptive statistics of the shape parameters of bottom trajectories

From: Three-dimensional space use during the bottom phase of southern elephant seal dives

 

Nb prey encounter event at bottom

Bottom duration (s)

Mean bottom depth (m)

Horizontal width (m)

Min

0.00

54.00

53.59

0.35

Max

28.00

1732.00

847.91

139.37

Median

2.00

451.00

435.78

20.39

Mean

3.37

500.39

441.86

23.20

SE mean

0.13

6.67

5.25

0.45

C I 95% mean

0.25

13.10

10.30

0.88

Variance

13.79

38572.57

23833.89

175.57

SD

3.71

196.40

154.38

13.25

 

MC1 vertical width (m)

MC1 horiz. width (m)

Total dispersion (m2)

MC1 dispersion (%)

Min

0.04

36.80

562.55

53.30

Max

383.55

1775.42

401082.90

99.97

Median

26.80

409.09

24073.35

97.20

Mean

48.68

431.17

32638.69

93.75

SE mean

2.16

7.25

1110.50

0.28

C I 95% mean

4.23

14.23

2179.59

0.56

Variance

4023.07

45544.02

1067959847.62

69.62

SD

63.43

213.41

32679.65

8.34

 

Vertical width (m)

Bottom speed SD (m s −1)

Bottom vertical speed SD (m s −1)

 

Min

2.10

0.11

0.16

 

Max

154.18

1.15

2.01

 

Median

23.21

0.32

0.79

 

Mean

31.45

0.35

0.85

 

SE mean

0.80

0.01

0.01

 

C I 95% mean

1.57

0.01

0.02

 

Variance

556.80

0.03

0.09

 

SD

23.60

0.17

0.30

 
  1. n=866 3D dives. Refer to methods for detailed explanation about what these variables represent and how they were computed