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Table 3 Spectral characteristics of PS1 calls from five belugas

From: Individuality embedded in the isolation calls of captive beluga whales (Delphinapterus leucas)

ID

H

T

G

N

M

Number

16

97

20

21

33

Peak freq. (kHz)

3rd

109

29

113

109

115

Middle

113

29

117

107

117

3rd from last

109

29

115

109

117

10 dB BW (kHz)

3rd

133 [14–147]

113 [12–125]

72 [76–148]

88 [70–158]

72 [80–152]

Middle

126 [22–148]

111 [12–123]

70 [78–148]

82 [72–154]

64 [86–150]

3rd from last

119 [22–141]

74 [12–86]

72 [76–148]

88 [68–156]

64 [82–146]

  1. In the frequency range 11–170 kHz, peak frequency and the 10 dB BW of averaged power spectra are represented for each of the three pulses (the third pulse, the middle pulse, and the third pulse from the last) out of those composing PS1. Values in brackets of the 10 dB BW represent the lower and upper frequencies of the 10 dB BW