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Sound production and pectoral spine locking in a Neotropical catfish (Iheringichthys labrosus, Pimelodidae) Neotropical Ichthyology
Tellechea,Javier S.; Teixeira-de Mello,Franco; Gonzalez-Bergonzoni,Iván; Vidal,Nicolás.
Catfishes may have two sonic organs: pectoral spines for stridulation and swimbladder drumming muscles. The aim of this study was to characterize the sound production of the catfish Iheringichthys labrosus. The I. labrosus male and female emits two different types of sounds: stridulatory sounds (655.8 + 230 Hz) consisting of a train of pulses, and drumming sounds (220 + 46 Hz), which are composed of single-pulse harmonic signals. Stridulatory sounds are emitted during abduction of the pectoral spine. At the base of the spine there is a dorsal process that bears a series of ridges on its latero-ventral surface, and by pressing the ridges against the groove (with an unspecialized rough surface) during a fin sweep, the animal produce a series of short pulses....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Distress call; Sonic organs; Spine erection; Stridulation sound.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000400020
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Redescription of the advertisement call of Aplastodiscus arildae (Cruz & Peixoto) and description of the call of Aplastodiscus weygoldti (Cruz & Peixoto) with general notes about the genus in Southeastern Brazil (Anura, Hylidae) Zoologia
Orrico,Victor G. D.; Carvalho-e-Silva,Ana Maria P. T.; Carvalho-e-Silva,Sergio P..
The study of anuran advertisement calls is very significant for it is an important premating premating mechanism. Herein we redescribe the advertisement call of Aplastodiscus arildae from an area near type-locality and describe the advertisement call of A. weygoldti comparing them to previously described advertisement calls of species of the genus Aplastodiscus. Both advertisement calls are simple, non-modulated calls, very similar to each other, but significantly different in what matters to call duration. We describe the first distress call registered for the genus, the distress call of A. arildae, that does not have rigid form and was only recorded for one individual. Some general notes of the genus Aplastodiscus are given.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Distress call; Morphological notes; Vocalization.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000400003
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