Sounds Made by Perca fluviatilis
Picture by Lorenzoni, M.

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Sound produced yes, active sound production
Type of sound produced barks, grunts, escape sounds
Sound production organ pneumatic duct & swim bladder
Sound mechanism not known, but probably produced by discharge of compressed gas through pneumatic duct, amplified by swim bladder
Behavioural context spontaneous frequent sound production, nocturnal, associated with onset of foraging activities (chasing prey).
Reference Tiepelt, H., 2005
Remark outdoor recording (freshwater lake). Sounds were produced by single specimen. Sound sequence, consisting of 7 double sounds and 1 single sound, well timed and rhythmical. Last sound showed max. acoustical energy & upward jump in frequency.
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cfm script by eagbayani, 21.08.01 ,  php script by rolavides, 2/8/2008 ,  last modified by cmilitante, 03/05/2013