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

Autores
García, Ignacio Daniel; Plaul, Silvia Elena; Torres, D.; Del Fresno, P. S.; Miranda, L. D.; Colautti, Darío César
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
Instituto de Limnología "Dr. Raúl A. Ringuelet"
Facultad de Ciencias Veterinarias
Materia
Ciencias Naturales
photoperiod
gonadal maturation
vitellogenesis
Characiforms
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/106689
Acceder
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network_acronym_str SEDICI
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network_name_str SEDICI (UNLP)
spelling Effect of photoperiod on ovarian maturation in <i>Cheirodon interruptus</i> (Teleostei: Characidae)García, Ignacio DanielPlaul, Silvia ElenaTorres, D.Del Fresno, P. S.Miranda, L. D.Colautti, Darío CésarCiencias Naturalesphotoperiodgonadal maturationvitellogenesisCharaciformsCheirodon 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.Instituto de Limnología "Dr. Raúl A. Ringuelet"Facultad de Ciencias Veterinarias2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf669-677http://sedici.unlp.edu.ar/handle/10915/106689enginfo:eu-repo/semantics/altIdentifier/issn/1678-4375info:eu-repo/semantics/altIdentifier/doi/10.1590/1519-6984.188607info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:04:52Zoai:sedici.unlp.edu.ar:10915/106689Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:04:52.364SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Effect of photoperiod on ovarian maturation in <i>Cheirodon interruptus</i> (Teleostei: Characidae)
title Effect of photoperiod on ovarian maturation in <i>Cheirodon interruptus</i> (Teleostei: Characidae)
spellingShingle Effect of photoperiod on ovarian maturation in <i>Cheirodon interruptus</i> (Teleostei: Characidae)
García, Ignacio Daniel
Ciencias Naturales
photoperiod
gonadal maturation
vitellogenesis
Characiforms
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)
dc.creator.none.fl_str_mv García, Ignacio Daniel
Plaul, Silvia Elena
Torres, D.
Del Fresno, P. S.
Miranda, L. D.
Colautti, Darío César
author García, Ignacio Daniel
author_facet García, Ignacio Daniel
Plaul, Silvia Elena
Torres, D.
Del Fresno, P. S.
Miranda, L. D.
Colautti, Darío César
author_role author
author2 Plaul, Silvia Elena
Torres, D.
Del Fresno, P. S.
Miranda, L. D.
Colautti, Darío César
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
photoperiod
gonadal maturation
vitellogenesis
Characiforms
topic Ciencias Naturales
photoperiod
gonadal maturation
vitellogenesis
Characiforms
dc.description.none.fl_txt_mv 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.
Instituto de Limnología "Dr. Raúl A. Ringuelet"
Facultad de Ciencias Veterinarias
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.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/106689
url http://sedici.unlp.edu.ar/handle/10915/106689
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1678-4375
info:eu-repo/semantics/altIdentifier/doi/10.1590/1519-6984.188607
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
669-677
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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