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Table 2 Sample means and standard deviations (SD) of the duration of deployment (days), number of dives, duration of time spent diving (days), proportion of time spent diving, number of locations, resulting number of hidden Markov model (HMM) locations at the three hour time step, and proportion of HMM locations spent foraging (n = 79)

From: Foraging behaviour of a continental shelf marine predator, the grey seal (Halichoerus grypus), is associated with in situ, subsurface oceanographic conditions

 

2009

2010

2011

2013

2014

2015

M

F

M

F

F

M

F

M

F

F

Duration

73.21

66.1

100.1

102.4

183.3

180.6

182.8

194.0

194.6

192.6

 SD

1.05

3.96

7.83

6.21

20.99

6.75

6.00

6.98

7.80

7.50

Dives

11,925.0

10,909.6

13,707.5

15,900.6

24,137.9

31,052.3

25,136.6

28,972.4

27,305.0

26,804.2

 SD

1206.85

1223.22

1212.17

2772.25

4314.94

5088.26

4756.96

3502.61

4468.37

3315.80

Dive Time

43.0

44.1

59.7

67.2

111.1

109.6

114.1

110.5

118.9

111.7

 SD

4.62

4.18

3.56

6.44

16.40

7.02

8.53

8.72

8.83

12.66

Dive Proportion

0.59

0.67

0.60

0.66

0.61

0.61

0.62

0.57

0.61

0.58

 SD

0.07

0.04

0.06

0.04

0.05

0.05

0.04

0.04

0.04

0.06

Locations

7681.6

4150.5

4776.7

5532.1

6528.9

8683.3

7954.6

10,412.2

10,503.6

9199.4

 SD

3271.06

352.02

1583.48

1484.88

2622.60

3804.74

2086.70

1012.52

1178.81

981.29

HMM Locations

494.2

462.7

641.5

684.1

1119.7

1199.3

1144.7

1197.2

1225.4

1163.2

 SD

19.04

33.04

71.15

48.28

153.65

86.09

78.03

82.67

81.34

106.26

Foraging Proportion

0.47

0.58

0.60

0.77

0.74

0.49

0.72

0.72

0.83

0.78

 SD

0.17

0.33

0.18

0.07

0.12

0.21

0.23

0.12

0.07

0.04