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bioacoustic article in journal of environmental biology of fishes

Subject: bioacoustic article in journal of environmental biology of fishes
From: Sonja Amoser <>
Date: Wed, 11 Jun 2003 10:50:28 -0700
 I am sorry, but somehow I missed this article, which came out in March.
 Stefano Malavasi, Patrizia Torricelli, Marco Lugli, Fabio Pranovi, Danilo
 Mainardi (2003): Male Courtship Sounds in a Teleost with Alternative
 Reproductive Tactics, the Grass Goby, Zosterisessor ophiocephalus.
 Environmental Biology of Fishes, 66(3), 231-236.
 Abstract: Male grass gobies show two alternative breeding tactics,
 territorial and sneaker, distinguished by body size and difference in ray
 elongation on the second dorsal fin. The larger males, with elongated fins,
 are territorial and emit sounds during courtship. Smaller males, without
 elongated fins, act as sneakers. Both large and small males produce sounds
 in the presence of a ripe female. Males produce a grunt, lasting about 300
 ms, made up of pulses repeated at a low rate (22-68 pps). Pulse duration,
 number, and repetition rate, did not differ between the two male types, but
 dominant frequency and sound amplitude did. Dominant frequency had a strong,
 inverse relationship with body size, whereas sound amplitude showed a weak
 positive relation to body size. Male size, and not the particular
 reproductive male tactic employed, is the most important correlate of sound
 properties in this species.
 Mag. Sonja Amoser
 Institute of Zoology, University of Vienna
 Althanstrasse 14, 1090 Vienna, Austria
 phone: +43-1-4277-54467 oder -54515

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