Table 1 Data of analyzed schools. School size is defined as the maximum distance between two fish belonging to the school.

From: Inherent noise appears as a Lévy walk in fish schools

Number of individuals

State of school

School size (mm)

Velocity (mm/sec)

Velocity of the center of the mass (mm/sec)

Total time interval (sec)

Op

Or

10

polarized

414.6

234.0

201.2

141.5

0.928

0.111

20

polarized

720.16

217.8

180.2

41.6

0.859

0.183

30

polarized

1232.0

256.5

198.7

36.0

0.888

0.147

40

polarized

1560.3

261.0

207.0

19.1

0.837

0.106

50

polarized

1237.2

212.2

158.9

33.0

0.804

0.105

60

polarized

1557.1

293.7

250.6

10.0

0.922

0.212

40

milling

1557.7

199.5

27.3

52.1

0.139

0.849

  1. Op and Or indicate the order parameters for polarization and rotation, respectively. The state of the school is considered as polarized at a high value of Op and a low value of Or and as milling at a high value of Or and a low of Op. See also in the main text.