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Sound produced | yes, active sound production |
Type of sound produced | grunts, creaks, sobs, yelps |
Sound production organ | swim bladder, enlarged base of first pectoral spine moved within socket by cleithrum |
Sound mechanism | vibrations by special "spring appartus" (bony shelf supporting swimbladder dorsally) |
Behavioural context | under duress (capture or prodding), communication |
Reference | Fish, M.P. and W.H. Mowbray, 1970 |
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