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Sound produced | yes, active sound production |
Tipo de sonido producido | escape sounds & thumps |
Órgano de producción sonor | swim bladder |
Sound mechanism | not specified |
Contexto del comportamiento | escape sounds when swimming induced, thumps under duress (manual & electric stimulation) |
Reference | Fish, M.P. and W.H. Mowbray, 1970 |
Observación | sounds increasing with intensity with increasing duress, recording amplified by 3 dB |