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| Lagardere, Jean-paul; Mariani, A. |
| During their spawning period (June to mid-July) in the Gironde estuary, meagre Argyrosomus regius produce two distinct sounds: regular long grunts, the most common calls, and sometimes also short grunts. It is suggested that long grunts serve the formation of spawning aggregations and short grunts announce the beginning of courtship behaviour. The meagre's long grunts include long series of 30-112 closely spaced pulses placed into call units. Each pulse produces multiple and rapidly decaying swimbladder vibrations with a dominant frequency varying between 336 and 444 Hz. (c) 2006 The Authors Journal compilation (c) 2006 The Fisheries Society of the British Isles. |
| Tipo: Text |
Palavras-chave: Spawning period; Sound production; Sonic muscle; Meagre. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-2184.pdf |
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| Parmentier, E; Lagardere, Jean-paul; Braquegnier, J; Vandewalle, P; Fine, M. |
| Fish sonic swimbladder muscles are the fastest muscles in vertebrates and have fibers with numerous biochemical and structural adaptations for speed. Carapid fishes produce sounds with a complex swimbladder mechanism, including skeletal components and extrinsic sonic muscle fibers with an exceptional helical myofibrillar structure. To study this system we stimulated the sonic muscles, described their insertion and action and generated sounds by slowly pulling the sonic muscles. We find the sonic muscles contract slowly, pulling the anterior bladder and thereby stretching a thin fenestra. Sound is generated when the tension trips a release system that causes the fenestra to snap back to its resting position. The sound frequency does not correspond to the... |
| Tipo: Text |
Palavras-chave: Swimbladder; Sonic mechanism; Sonic muscle; Sound production; Carapidae. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-7353.pdf |
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| Devincenti,Clelia Viviana; Díaz,Alcira Ofelia; Longo,María Victoria; García,Alicia Mabel; Figueroa,Daniel; Goldemberg,Adriana Lía. |
| The present study highlights the morphology of the Micropogonias furnieri sonic muscle by means of histochemical techniques, relating it to previous histochemical studies of the pectoral fin and myotomal muscles. In order to classify the muscle fibres, succinic dehydrogenase (SDH) for mitochondria, periodic acid Schiff (PAS) for glycogen, Sudan Black and Red for lipids and myosin adenosine triphosphatase (m-ATPase) pre-incubated at alkaline and acid pHs to visualize the contraction velocity, were used. The sonic fibres were smaller than the white myotomal and pectoral fibres, showed homogenous size and distribution and had features common to white fibres: negative to SDH and lipids, weakly positive to PAS and m-ATPase following acid pre-incubation, and... |
| Tipo: Journal article |
Palavras-chave: Sonic muscle; Micropogonias furnieri; Morphology; Histochemistry. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000400027 |
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