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dc.contributor.author
Boy, Claudia Clementina
dc.contributor.author
Vanella, Fabián Alberto
dc.contributor.author
Lattuca, María Eugenia
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Ceballos, Santiago Guillermo
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Aureliano, Daniel
dc.contributor.author
Rimbau, Sonia
dc.contributor.author
Gutiérrez, M.
dc.contributor.author
Fernandez, Daniel Alfredo
dc.date.available
2015-10-29T18:30:39Z
dc.date.issued
2013-09
dc.identifier.citation
Boy, Claudia Clementina; Vanella, Fabián Alberto; Lattuca, María Eugenia; Ceballos, Santiago Guillermo; Aureliano, Daniel; et al.; Effect of starvation on growth rate, muscle growth and energy density of puyen, Galaxias maculatus; Wiley Blackwell Publishing, Inc; Journal Of Applied Ichthyology-zeitschrift Fur Angewandte Ichthyologie; 29; 9-2013; 1001-1007
dc.identifier.issn
0175-8659
dc.identifier.uri
http://hdl.handle.net/11336/2572
dc.description.abstract
Seasonal growth of G. maculatus in Tierra del Fuego, at the southern limit of its distribution, would be explained by the variation of extrinsic factors, and experiments of fasting under summer conditions would allow researchers to potentially focus on feeding/fasting conditions independent of other seasonal cues, and thus discriminate the effect of fasting from other winter factors that influence fish growth. The current study presents information about muscle growth of Galaxias maculatus and the results of an experiment evaluating the effect of fasting on growth rate, total muscle growth and energy density in this species, under summer-like conditions. Uniform pattern of muscle fibers suggest the absence of mosaic hyperplastic growth in G. maculatus. Hyperplasic growth was over before puyen reached 65 mm total length, and hyperplasia cessation was correlated to the transition from juvenile to adult stage. In the experimental animals, where hypertrophic growth was the unique process responsible for adult muscle growth, fasting decreased mass, condition and energy density of experimental individuals, and stopped the hypertrophic growth. These results proof that reduced food consumption in southerly puyen populations during winter might contribute to the seasonality of growth previously reported for this species. A provisional summer growth rate of 2?3 mm/month is suggested for populations inhabiting the southern limits of this species? distribution. We propose G. maculatus as a useful model species to study hypertrophic muscle growth.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
G. Maculatus
dc.subject
Starvation
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Growth Rate
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Muscle Growth
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Energy Density
dc.title
Effect of starvation on growth rate, muscle growth and energy density of puyen, Galaxias maculatus
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
29
dc.journal.pagination
1001-1007
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Boy, Claudia Clementina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Vanella, Fabián Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Lattuca, María Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Ceballos, Santiago Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Aureliano, Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Rimbau, Sonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Gutiérrez, M.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Fernandez, Daniel Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.journal.title
Journal Of Applied Ichthyology-zeitschrift Fur Angewandte Ichthyologie
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/jai.12147/abstract