Carol E. Johnston, Mary K. Bolling, Dan E. Holt and Catherine T. Phillips
(2008): Production of acoustic signals during aggression in Coosa bass,
Micropterus coosae. Environ. Biol. Fishes 82(1), 17-20.
Abstract: Although sound production has been described for sunfishes, it is
previously unknown for basses, both groups of fishes in the family
Centrarchidae. We document production of acoustic signals during aggressive
encounters in Coosa bass, Micropterus coosae. During dyadic encounters,
presumptive winners of contests produced sounds associated with a variety of
behaviors, including chases, lateral displays, circle swims, nudging,
jerking and during post aggression, while fish were stationary. These sounds
are low-frequency, non-harmonic and consist of one to 41 separate pulses. In
most trials larger fish won contests, regardless of territory ownership
(which fish was put into the test tank first) and size difference.
URL: http://www.springerlink.com/content/n5623p4h85238916/
For reprints please contact Carol E. Johnston
Email:
**************************
Dr. Sonja Amoser
Daringergasse 3
1190 Wien
|