Ovarian development and reproductive biology of Hoplias argentinensis (Characiformes: Erythrinidae), a top predator of the Pampa plain lakes, Argentina

Autores
Battagliotti, Cristian; Rosso, Juan Jose; González Castro, Mariano
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Species in the Hoplias malabaricus complex are important for commercial and artisanal fisheries. Recent studies have identified several species within this complex, including Hoplias argentinensis (the southernmost species), but no precise biological knowledge exist for it. In the present work, the reproductive biology of H. argentinensis was studied in the shallow lake Kakel Huincul (Buenos Aires, Argentina), between May 2022 and May 2023. Five ovarian maturation phases were macroscopic and histologically characterized and four ovarian maturation phases were detected: immature, developing, spawning capable (including active spawning subphase) and regressing. The results suggest a reproductive season from May to February, with a spawning season from October to February. Batch fecundity varied between 24,342 and 77,866 oocytes. The relative fecundity ranged between 12 and 67 oocytes/g ovary. Histological analysis and frequency distribution of oocyte diameters in actively spawning females revealed a tetramodal pattern characterizing H. argentinensis as an iteroparous batch spawner with indeterminate fecundity. These results provide a better understanding of the reproductive life cycle of this newly described species at its southernmost occurrence. This study also provides the first histologic description of the maturation ovarian phases and oocyte development stages in an annual cycle.
Fil: Battagliotti, Cristian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Rosso, Juan Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: González Castro, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Materia
BATCH-SPAWNERS
OOCYTE STAGES
SHALLOW LAKES
THRAIRA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/290810
Acceder
id CONICETDig_a8d255326c361a0ac21989cc094f1389
oai_identifier_str oai:ri.conicet.gov.ar:11336/290810
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ovarian development and reproductive biology of Hoplias argentinensis (Characiformes: Erythrinidae), a top predator of the Pampa plain lakes, ArgentinaBattagliotti, CristianRosso, Juan JoseGonzález Castro, MarianoBATCH-SPAWNERSOOCYTE STAGESSHALLOW LAKESTHRAIRAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Species in the Hoplias malabaricus complex are important for commercial and artisanal fisheries. Recent studies have identified several species within this complex, including Hoplias argentinensis (the southernmost species), but no precise biological knowledge exist for it. In the present work, the reproductive biology of H. argentinensis was studied in the shallow lake Kakel Huincul (Buenos Aires, Argentina), between May 2022 and May 2023. Five ovarian maturation phases were macroscopic and histologically characterized and four ovarian maturation phases were detected: immature, developing, spawning capable (including active spawning subphase) and regressing. The results suggest a reproductive season from May to February, with a spawning season from October to February. Batch fecundity varied between 24,342 and 77,866 oocytes. The relative fecundity ranged between 12 and 67 oocytes/g ovary. Histological analysis and frequency distribution of oocyte diameters in actively spawning females revealed a tetramodal pattern characterizing H. argentinensis as an iteroparous batch spawner with indeterminate fecundity. These results provide a better understanding of the reproductive life cycle of this newly described species at its southernmost occurrence. This study also provides the first histologic description of the maturation ovarian phases and oocyte development stages in an annual cycle.Fil: Battagliotti, Cristian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Rosso, Juan Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: González Castro, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaSociedade Brasileira de Ictiologia2025-06-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/290810Battagliotti, Cristian; Rosso, Juan Jose; González Castro, Mariano; Ovarian development and reproductive biology of Hoplias argentinensis (Characiformes: Erythrinidae), a top predator of the Pampa plain lakes, Argentina; Sociedade Brasileira de Ictiologia; Neotropical Ichthyology; 23; 2; 30-6-2025; 1-201679-62251982-0224CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.scielo.br/j/ni/a/hD8nXtsfsYGGXBJ6v3xhr7v/?lang=eninfo:eu-repo/semantics/altIdentifier/doi/10.1590/1982-0224-2024-0109info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T14:41:19Zoai:ri.conicet.gov.ar:11336/290810instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-08-25 14:41:19.903CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ovarian development and reproductive biology of Hoplias argentinensis (Characiformes: Erythrinidae), a top predator of the Pampa plain lakes, Argentina
title Ovarian development and reproductive biology of Hoplias argentinensis (Characiformes: Erythrinidae), a top predator of the Pampa plain lakes, Argentina
spellingShingle Ovarian development and reproductive biology of Hoplias argentinensis (Characiformes: Erythrinidae), a top predator of the Pampa plain lakes, Argentina
Battagliotti, Cristian
BATCH-SPAWNERS
OOCYTE STAGES
SHALLOW LAKES
THRAIRA
title_short Ovarian development and reproductive biology of Hoplias argentinensis (Characiformes: Erythrinidae), a top predator of the Pampa plain lakes, Argentina
title_full Ovarian development and reproductive biology of Hoplias argentinensis (Characiformes: Erythrinidae), a top predator of the Pampa plain lakes, Argentina
title_fullStr Ovarian development and reproductive biology of Hoplias argentinensis (Characiformes: Erythrinidae), a top predator of the Pampa plain lakes, Argentina
title_full_unstemmed Ovarian development and reproductive biology of Hoplias argentinensis (Characiformes: Erythrinidae), a top predator of the Pampa plain lakes, Argentina
title_sort Ovarian development and reproductive biology of Hoplias argentinensis (Characiformes: Erythrinidae), a top predator of the Pampa plain lakes, Argentina
dc.creator.none.fl_str_mv Battagliotti, Cristian
Rosso, Juan Jose
González Castro, Mariano
author Battagliotti, Cristian
author_facet Battagliotti, Cristian
Rosso, Juan Jose
González Castro, Mariano
author_role author
author2 Rosso, Juan Jose
González Castro, Mariano
author2_role author
author
dc.subject.none.fl_str_mv BATCH-SPAWNERS
OOCYTE STAGES
SHALLOW LAKES
THRAIRA
topic BATCH-SPAWNERS
OOCYTE STAGES
SHALLOW LAKES
THRAIRA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Species in the Hoplias malabaricus complex are important for commercial and artisanal fisheries. Recent studies have identified several species within this complex, including Hoplias argentinensis (the southernmost species), but no precise biological knowledge exist for it. In the present work, the reproductive biology of H. argentinensis was studied in the shallow lake Kakel Huincul (Buenos Aires, Argentina), between May 2022 and May 2023. Five ovarian maturation phases were macroscopic and histologically characterized and four ovarian maturation phases were detected: immature, developing, spawning capable (including active spawning subphase) and regressing. The results suggest a reproductive season from May to February, with a spawning season from October to February. Batch fecundity varied between 24,342 and 77,866 oocytes. The relative fecundity ranged between 12 and 67 oocytes/g ovary. Histological analysis and frequency distribution of oocyte diameters in actively spawning females revealed a tetramodal pattern characterizing H. argentinensis as an iteroparous batch spawner with indeterminate fecundity. These results provide a better understanding of the reproductive life cycle of this newly described species at its southernmost occurrence. This study also provides the first histologic description of the maturation ovarian phases and oocyte development stages in an annual cycle.
Fil: Battagliotti, Cristian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Rosso, Juan Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: González Castro, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
description Species in the Hoplias malabaricus complex are important for commercial and artisanal fisheries. Recent studies have identified several species within this complex, including Hoplias argentinensis (the southernmost species), but no precise biological knowledge exist for it. In the present work, the reproductive biology of H. argentinensis was studied in the shallow lake Kakel Huincul (Buenos Aires, Argentina), between May 2022 and May 2023. Five ovarian maturation phases were macroscopic and histologically characterized and four ovarian maturation phases were detected: immature, developing, spawning capable (including active spawning subphase) and regressing. The results suggest a reproductive season from May to February, with a spawning season from October to February. Batch fecundity varied between 24,342 and 77,866 oocytes. The relative fecundity ranged between 12 and 67 oocytes/g ovary. Histological analysis and frequency distribution of oocyte diameters in actively spawning females revealed a tetramodal pattern characterizing H. argentinensis as an iteroparous batch spawner with indeterminate fecundity. These results provide a better understanding of the reproductive life cycle of this newly described species at its southernmost occurrence. This study also provides the first histologic description of the maturation ovarian phases and oocyte development stages in an annual cycle.
publishDate 2025
dc.date.none.fl_str_mv 2025-06-30
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/290810
Battagliotti, Cristian; Rosso, Juan Jose; González Castro, Mariano; Ovarian development and reproductive biology of Hoplias argentinensis (Characiformes: Erythrinidae), a top predator of the Pampa plain lakes, Argentina; Sociedade Brasileira de Ictiologia; Neotropical Ichthyology; 23; 2; 30-6-2025; 1-20
1679-6225
1982-0224
CONICET Digital
CONICET
url http://hdl.handle.net/11336/290810
identifier_str_mv Battagliotti, Cristian; Rosso, Juan Jose; González Castro, Mariano; Ovarian development and reproductive biology of Hoplias argentinensis (Characiformes: Erythrinidae), a top predator of the Pampa plain lakes, Argentina; Sociedade Brasileira de Ictiologia; Neotropical Ichthyology; 23; 2; 30-6-2025; 1-20
1679-6225
1982-0224
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.scielo.br/j/ni/a/hD8nXtsfsYGGXBJ6v3xhr7v/?lang=en
info:eu-repo/semantics/altIdentifier/doi/10.1590/1982-0224-2024-0109
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ictiologia
publisher.none.fl_str_mv Sociedade Brasileira de Ictiologia
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1874774474214080512
score 13.365483

Publicaciones similares