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|Sound produced||yes, active sound production|
|Type of sound produced||escape sounds, rasps, grunts|
|Sound production organ||swim bladder|
|Sound mechanism||vibration of swim bladder by contraction of body musculature|
|Behavioural context||escape sound when disturbed, rasps when netted, grunts under duress (electric stimulation)|
|Reference||Fish, M.P. and W.H. Mowbray, 1970|
|Remark||recorded with bandpass filter: 30 -1200 Hz, recording amplified by 9 dB|