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| Sound produced | yes, active sound production |
| Type of sound produced | grunts, booms, thumps |
| Sound production organ | swim bladder |
| Sound mechanism | vibration by contraction of associated muscles (probably similar as in Epinephelus striatus) |
| Behavioural context | feeding (with other species) & very mild manual stimulation |
| Reference | Fish, M.P. and W.H. Mowbray, 1970 |
| Remark | recorded with lowpass filter 1200 Hz (very noisy) |