ArticleJournal of experimental zoology. Part A, Ecological and integrative physiology2023
Different sound characteristics produced by the left and right pectoral fins constitute a new form of lateralization in a vocal fish.
Article in Journal of experimental zoology. Part A, Ecological and integrative physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Different sound characteristics produced by the left and right pectoral fins constitute a new form of lateralization in a vocal fish.Journal of experimental zoology. Part A, Ecological and integrative physiology · 2023Article
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Abstract
Songbirds and toothed whales are able to produce different sounds with the left and right part of their sonic organs, a phenomenon termed lateralized sound production. In fishes this phenomenon is poorly known, with lateralization having been observed solely in the channel catfish (Ictalurus punctatus). They produce more sounds with their right pectoral fins. Croaking gouramis Trichopsis vittata beat their pectoral fins alternately, resulting in a series of two-pulsed sound bursts termed croaking sounds. This study investigates lateralized sound production by comparing temporal and amplitude characteristics of sound bursts generated by pectoral fins in T. vittata. Croaking sounds, produced during dyadic contests, were analyzed in 19 females. We investigated the following characteristics of sound bursts: burst period, pulse period within bursts, the relative peak-to-peak amplitudes of bursts, and the ratio of peak-to-peak amplitudes of the first and second pulse within bursts. Sound bursts produced by the right and left sonic organ differed in 17 out of 19 females in at least one to four measured sound characteristics. The number of females whose temporal characteristics differed between pectoral fins was significantly higher than the number of females lacking such differences (16 out of 19). This was not the case for amplitude characteristics. Our data demonstrated that the sound characteristics produced by the left and right sonic organ in T. vittata differed significantly in most specimens. These differences in sound properties may constitute a new form of lateralized sound production in vocal fishes.
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