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FishBase

Sounds made by Odontoscion dentex

picture (Odden_u2.jpg) by Wirtz, P.

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Note: Please be patient while sound file is loaded. You may have to increase volume settings. To see the oscillosope using Windows Media Player 7 select from Visualizations (under View), the Bars & Waves Option and then the Scope.
Sound production:	yes, active sound production
Type of sound produced:	knocks, thumps (& croaks)
Sound production organ:	unspecified but probably swim bladder with drumming muscles in males only & pharyngeal teeth in close proximity to swim bladder in both sexes
Sonic mechanism:	unspecified, but probably similar to Cynoscion regalis: males only: vibration of swim bladder by contraction of associated "drumming" muscles, high-pitched clucking in both sexes produced by stridulation of pharyngeal teeth amplified by swim bladder
Behavioural context:	under duress (manual & electric stimulation)
Reference:	Fish, M.P. and W.H. Mowbray, 1970
Remarks:	no sex data available, but lack of croaking in recording suggests female specimen only, since drumming muscles are limited to males in morphologically related sciaenids.Recorded with highpass filter: 60 Hz. Recording amplifed by 6 dB

Click here for Nedwell et al. 2004 report with audiograms
Entered: Kaschner,Kristin - 09.11.01		Back to Search

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If you did not hear the sound. Click here to download sound file.

Page created by: Eli, 21.08.01, last modified by Eli, 01.06.04.