Repositorio Institucional
Repositorio Institucional
CONICET Digital
  • Inicio
  • EXPLORAR
    • AUTORES
    • DISCIPLINAS
    • COMUNIDADES
  • Estadísticas
  • Novedades
    • Noticias
    • Boletines
  • Ayuda
    • General
    • Datos de investigación
  • Acerca de
    • CONICET Digital
    • Equipo
    • Red Federal
  • Contacto
JavaScript is disabled for your browser. Some features of this site may not work without it.
  • INFORMACIÓN GENERAL
  • RESUMEN
  • ESTADISTICAS
 
Artículo

Energy allocation in relation to spawning and overwintering of a diadromous Puyen (Galaxias maculatus) population in the southernmost limit of the species distribution

Boy, Claudia ClementinaIcon ; Pérez, Soledad AnalíaIcon ; Fernández, Daniel Andrés; Calvo, JorgeIcon ; Morriconi, Elba RosaIcon
Fecha de publicación: 01/2009
Editorial: Springer
Revista: Polar Biology
ISSN: 0722-4060
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Zoología, Ornitología, Entomología, Etología

Resumen

A population of Galaxias maculatus, a native species in southern South America, living under cold-temperate conditions (0°C water temperature with an ice layer covering the stream during the coldest days) and 7 h of light in winter undergoes high energetic demands in the population studied. We analyzed the energy density of gonads, liver, fat and muscle, through calorimetry for the first time in this species. Energy density of fat and liver were extremely high (34.77-56.52 and 29.54-40.77 kJ/g respectively). While perivisceral fat reserves were likely used for overwintering, liver and muscle reserves were used for reproduction. High energy densities were also found in gonads (27.76 kJ/g in ovaries and 25.84 kJ/g in testes). High investment in gonads of males suggests the presence of sperm competition. The temporal variation of the energy content of gonads, liver, fat and muscle indicates that the allocation of energy occurs by the internal transference of energy between organs and tissues.
Palabras clave: CALORIMETRY , ENERGY DENSITY , GALAXIAS MACULATUS , ORGANS , OVERWINTERING , REPRODUCTION
Ver el registro completo
 
Archivos asociados
Tamaño: 333.3Kb
Formato: PDF
.
Solicitar
Licencia
info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/133760
URL: https://link.springer.com/article/10.1007%2Fs00300-008-0495-z
DOI: https://doi.org/10.1007/s00300-008-0495-z
Colecciones
Articulos(CADIC)
Articulos de CENTRO AUSTRAL DE INVESTIGACIONES CIENTIFICAS
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Citación
Boy, Claudia Clementina; Pérez, Soledad Analía; Fernández, Daniel Andrés; Calvo, Jorge; Morriconi, Elba Rosa; Energy allocation in relation to spawning and overwintering of a diadromous Puyen (Galaxias maculatus) population in the southernmost limit of the species distribution; Springer; Polar Biology; 32; 1; 1-2009; 9-14
Compartir
Altmétricas
 

Enviar por e-mail
Separar cada destinatario (hasta 5) con punto y coma.
  • Facebook
  • X Conicet Digital
  • Instagram
  • YouTube
  • Sound Cloud
  • LinkedIn

Los contenidos del CONICET están licenciados bajo Creative Commons Reconocimiento 2.5 Argentina License

https://www.conicet.gov.ar/ - CONICET

Inicio

Explorar

  • Autores
  • Disciplinas
  • Comunidades

Estadísticas

Novedades

  • Noticias
  • Boletines

Ayuda

Acerca de

  • CONICET Digital
  • Equipo
  • Red Federal

Contacto

Godoy Cruz 2290 (C1425FQB) CABA – República Argentina – Tel: +5411 4899-5400 repositorio@conicet.gov.ar
TÉRMINOS Y CONDICIONES