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bioacoustics article: Environ. Biol. Fishes 71(4)

Subject: bioacoustics article: Environ. Biol. Fishes 71(4)
From: Sonja Amoser <>
Date: Mon, 29 Nov 2004 11:04:08 -0800
Jennifer L. Ripley, Phillip S. Lobel (2004): Correlation of acoustic and
 visual signals in the cichlid fish, Tramitichromis intermedius.
 Environmental Biology of Fishes, 71(4): 389-394.
 Abstract: We investigated acoustic and visual communication concurrently in
 wild caught adult and captive-born, first generation offspring of the East
 African Rift Lake cichlid fish Tramitichromis intermedius. Only males emit
 sound during courtship. Sound production is always accompanied by quivering,
 but quiver behavior is not always accompanied by sound. This separation of
 quivering and sound supports the hypothesis that sound production is
 intentional serving a communicative role. As spawning nears, both sound
 production and quiver behavior increase. In terms of the ontogeny of sound
 production, the first observation of courtship occurs just days before the
 first spawning event and the first sound emission accompanies the first
 courtship activity. The accompaniment of quivering with sound as well as the
 escalation of the two behaviors with the approach of spawning follows
 similar patterns in wild caught and captive-born males. The tight
 correlation between behavior and sound production in both groups indicates
 their simultaneous performance plays an important role in reproduction. It
 is probable that the ability to produce sound and perform quiver behavior at
 the same time may be a measure of mate quality.
 Key words: Cichlidae, sound production, spawning behavior, behavior
 ontogeny, mate choice
 Sonja Amoser, PhD Student
 University of Vienna, Institute of Zoology
 Althanstrasse 14, 1090 Vienna, Austria
 Phone: +43-1-4277-54467 oder +43-664-5006106 (private)
 Fax: +43-1-4277-54506

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