Please be patient while sound file is loaded. You may have to increase volume settings.
Click here to download the sound file.| Sound produced | yes, active sound production |
| Type of sound produced | knocks, pulsed drum beats |
| Sound production organ | swim bladder |
| Sound mechanism | vibration by contraction of primary sonic muscles & conformation of swim bladder |
| Behavioural context | intraspecific competition, terretorial behaviour |
| Reference | Parmentier, E., P. Vandewalle and J.P. Lagardère, 2003 |
| Remark | strongly species-specific sounds, aquarium recording, recorded with lowpass filter: 6400 Hz. |