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|Sound produced||yes, active sound production|
|Type of sound produced||thumps, knocks|
|Sound production organ||probably swim bladder|
|Sound mechanism||probably vibration of swim bladder by contraction of body musculature as in other serranids|
|Behavioural context||under duress (electric stimulation)|
|Reference||Fish, M.P. and W.H. Mowbray, 1970|
|Remark||high pass noise reduction filter applied to recording, amplified by 6 dB|