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Figure 1 | Frontiers in Zoology

Figure 1

From: Contribution to the study of acoustic communication in two Belgian river bullheads (Cottus rhenanus and C. perifretum) with further insight into the sound-producing mechanism

Figure 1

Waveform of agonistic sounds produced by Cottus rhenanus and C. perifretum . Oscillograms of multiple-pulsed sounds produced by C. rhenanus (A) and C. perifretum (B). The vertical dotted lines delimit the sound duration, and the blue zones highlight a pulse unit in a series. The black bars correspond to the different interpulse durations in a sound. IP = interpulse. (C) Power spectra of sounds produced by C. rhenanus (red line) and C. perifretum (blue line) showing the difference in peak frequencies (see arrows).

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Frontiers in Zoology

ISSN: 1742-9994