Table 1

Summary of under-water recordings of foraging walruses in Young Sound, Northeast Greenland 2001.

Date 2001

Walrus recording number

Observation time (sec)

Observation time (%)

No. of bottom sequences


26 Jul

1

208

3.1

1

29 Jul

2

92

1.4

1

2 Jul

3

193

2.9

1

2 Jul

4

408

6.0

2

3 Jul

5

30

0.4

1

3 Jul

6

663

9.8

2

4 Jul

7

1279

19.0

5

8 Jul

8

2113

31.3

10

8 Jul

9

680

10.1

3

10 Jul

10

943

14.0

4

15 Jul

11

130

1.9

1

15 Jul

12

10

0.1

1


Observation time of walrus recordings number 1–12 in seconds per recording, percentage of total recording time and number of bottom sequences.

Levermann et al. BMC Ecology 2003 3:9   doi:10.1186/1472-6785-3-9

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