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Updated: Sep 9, 2025
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Preparation of the Rat Vocal Fold for Neuromuscular Analyses
Published on: May 15, 2020
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Información sobre la estructura y el desarrollo de los músculos del pez león (Pterois spp.) Vocalizaciones
Roxanne B Holmes1, Nadia M Hamilton1, Katharine E Criswell2
1Department of Zoology, University of Cambridge, Cambridge, UK.
Journal of fish biology
|August 28, 2025
Resumen
El pez león utiliza músculos sónicos unidos a su vejiga natatoria para la comunicación vocal. La investigación no encontró diferencias en estos músculos relacionados con la edad o el sexo en las especies de pez león.
Área de la Ciencia:
- Ictiología
- La bioacústica
- Morfología funcional
Sus antecedentes:
- La señalización vocal es crucial para la comunicación de los peces.
- El pez león (Pterois volitans y Pterois miles) posee músculos sónicos para la producción de sonidos, pero los mecanismos y funciones siguen sin estar claros.
- Comprender estas vocalizaciones es importante para el manejo de especies invasoras.
Objetivo del estudio:
- Describir anatómicamente los músculos sónicos en P. volitans y P. miles utilizando bioimágenes en 3D.
- Para cuantificar el desarrollo muscular sónico a través de la ontogenia en P. volitans.
- Para probar el dimorfismo sexual en los músculos sónicos, lo que indica un papel en la selección sexual.
Principales métodos:
- Se empleó bioimagen tridimensional para visualizar la anatomía del músculo sónico.
- Se cuantificaron los músculos sónicos de P. volitans para analizar las variaciones ontogenéticas y sexuales.
- Se midieron la longitud y la masa muscular en relación con el tamaño corporal.
Principales resultados:
- Tanto P. volitans como P. miles poseen músculos extrínsecos sónicos emparejados (ESSM) y músculos extrínsecos anteriores adicionales asociados con la vejiga natatoria.
- Los músculos sónicos estuvieron presentes durante toda la ontogenia de P. volitans.
- No se encontraron diferencias significativas en la inversión muscular sónica entre los sexos o en las diferentes etapas de desarrollo.
Conclusiones:
- Los músculos sónicos identificados probablemente juegan un papel tanto en el control de la flotabilidad como en la producción de sonido en el pez león.
- La falta de dimorfismo sexual sugiere que los músculos sónicos pueden no estar impulsados principalmente por la selección sexual en estas especies.
- El tamaño del cuerpo parece ser un factor clave que influye en el tamaño del músculo sónico, potencialmente debido a las limitaciones relacionadas con la regulación de la flotabilidad.
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