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Correlation between auditory sensitivity and vocalization in anabantoid fishes
1Institute of Zoology, University of Vienna, Austria. Friedrich.Ladich@univie.ac.at
Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology
|June 19, 1998
Summary
Anabantoid fish, like gouramis, are hearing specialists with enhanced sound detection up to 5 kHz. Their high-frequency hearing aligns with the sounds they produce, possibly due to their air-breathing chambers.
Area of Science:
- * Ichthyology
- * Bioacoustics
- * Auditory Neuroscience
Background:
- * Anabantoid fishes produce high-frequency sounds (0.8-2.5 kHz).
- * This contrasts with the generally low-frequency hearing of other perciform fishes.
- * The auditory capabilities of these species were previously understudied.
Purpose of the Study:
- * To investigate the auditory sensitivities of five gourami species.
- * To compare their hearing abilities with their sound production characteristics.
- * To explore the role of the suprabranchial chamber in sound perception and emission.
Main Methods:
- * Auditory brainstem response recording technique was employed.
- * Auditory sensitivities of *Trichopsis vittata*, *T. pumila*, *Colisa lalia*, *Macropodus opercularis*, and *Trichogaster trichopterus* were measured.
- * Sound characteristics of each species were analyzed.
Main Results:
- * All five species demonstrated enhanced sound detection up to 5 kHz, qualifying them as hearing specialists.
- * Each species showed a peak hearing sensitivity between 800 Hz and 1500 Hz.
- * *Trichogaster trichopterus* exhibited the lowest hearing thresholds (76 dB re I microPa at 800 Hz).
Conclusions:
- * Anabantoid fishes possess specialized high-frequency hearing abilities.
- * The suprabranchial air-breathing chamber likely enhances both sound production and perception at its resonant frequency.
- * This adaptation facilitates communication and detection in their specific acoustic environment.