Effect of photoperiod on ovarian maturation in <i>Cheirodon interruptus</i> (Teleostei: Characidae)

Cheirodon interruptus is a ubiquitous small characid that inhabits the Pampean region and commonly used as bait. Its vast market is supplied from the wild population causing a significant environmental impact. In this study, we assess the effect of photoperiod on ovarian maturation in order to evalu...

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Autores principales: García, Ignacio Daniel, Plaul, Silvia Elena, Torres, D., Del Fresno, P. S., Miranda, L. D., Colautti, Darío César
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Ciencias Naturales
photoperiod
gonadal maturation
vitellogenesis
Characiforms
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/106689
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-106689
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
photoperiod
gonadal maturation
vitellogenesis
Characiforms
spellingShingle Ciencias Naturales
photoperiod
gonadal maturation
vitellogenesis
Characiforms
García, Ignacio Daniel
Plaul, Silvia Elena
Torres, D.
Del Fresno, P. S.
Miranda, L. D.
Colautti, Darío César
Effect of photoperiod on ovarian maturation in <i>Cheirodon interruptus</i> (Teleostei: Characidae)
topic_facet Ciencias Naturales
photoperiod
gonadal maturation
vitellogenesis
Characiforms
description Cheirodon interruptus is a ubiquitous small characid that inhabits the Pampean region and commonly used as bait. Its vast market is supplied from the wild population causing a significant environmental impact. In this study, we assess the effect of photoperiod on ovarian maturation in order to evaluate its potential as a tool to manipulate reproduction under artificial conditions. Four treatments in triplicate (light: dark, L: D) were tested: 24L: 0D, 12L: 12D, 0L: 24D and a progressive photoperiod corresponding to the daily photoperiod increments in wild during winter-spring transition, accelerated three times. The experiment was conducted for 45 days. Gonadosomatic index (GSI), oocyte mean diameter, vitellogenic oocyte proportions, plasma estradiol concentrations (E2), condition factor (Kn) and standard length were estimated. Values of mean GSI, oocyte diameter, vitellogenic oocyte proportions and E2 concentration were maximum in the progressive treatment indicating vitellogenesis stimulation. In turn the same parameters were minimum in the 24L: 0D, revealing the vitellogenesis inhibition. This study showed that photoperiodic regime play an important role in the onset of ovarian maturation in C. interruptus.
format Articulo
Articulo
author García, Ignacio Daniel
Plaul, Silvia Elena
Torres, D.
Del Fresno, P. S.
Miranda, L. D.
Colautti, Darío César
author_facet García, Ignacio Daniel
Plaul, Silvia Elena
Torres, D.
Del Fresno, P. S.
Miranda, L. D.
Colautti, Darío César
author_sort García, Ignacio Daniel
title Effect of photoperiod on ovarian maturation in <i>Cheirodon interruptus</i> (Teleostei: Characidae)
title_short Effect of photoperiod on ovarian maturation in <i>Cheirodon interruptus</i> (Teleostei: Characidae)
title_full Effect of photoperiod on ovarian maturation in <i>Cheirodon interruptus</i> (Teleostei: Characidae)
title_fullStr Effect of photoperiod on ovarian maturation in <i>Cheirodon interruptus</i> (Teleostei: Characidae)
title_full_unstemmed Effect of photoperiod on ovarian maturation in <i>Cheirodon interruptus</i> (Teleostei: Characidae)
title_sort effect of photoperiod on ovarian maturation in <i>cheirodon interruptus</i> (teleostei: characidae)
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/106689
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