Temporal Dynamics of Reproduction of the Neotropical Fish, Crenicichla menezesi (Perciformes: Cichlidae)

The reproductive biology and the gonadal development cycle of the Neotropical cichlid fish, Crenicichla menezesi, is described. This species exhibits sexual dimorphism only during the spawning season. First sexual maturity of females is attained earlier than the males. Both macroscopic and histologi...

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Detalles Bibliográficos
Autores principales: de Araújo, Andréa Soares, do Nascimento, Wallace Silva, Yamamoto, Maria Emília, Chellappa, Sathyabama
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Scientific World Journal 2012
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3415153/
https://www.ncbi.nlm.nih.gov/pubmed/22919339
http://dx.doi.org/10.1100/2012/579051
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author de Araújo, Andréa Soares
do Nascimento, Wallace Silva
Yamamoto, Maria Emília
Chellappa, Sathyabama
author_facet de Araújo, Andréa Soares
do Nascimento, Wallace Silva
Yamamoto, Maria Emília
Chellappa, Sathyabama
author_sort de Araújo, Andréa Soares
collection PubMed
description The reproductive biology and the gonadal development cycle of the Neotropical cichlid fish, Crenicichla menezesi, is described. This species exhibits sexual dimorphism only during the spawning season. First sexual maturity of females is attained earlier than the males. Both macroscopic and histological investigations of ovaries and testes revealed four stages of gonadal maturation. Mean batch fecundity of females was 372 (±10,41) of mature oocytes. This species is a partial spawner, with an extended spawning period. Monthly values of GSI and the condition factor are negatively correlated during the gonadal development cycle of this species.
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spelling pubmed-34151532012-08-23 Temporal Dynamics of Reproduction of the Neotropical Fish, Crenicichla menezesi (Perciformes: Cichlidae) de Araújo, Andréa Soares do Nascimento, Wallace Silva Yamamoto, Maria Emília Chellappa, Sathyabama ScientificWorldJournal Research Article The reproductive biology and the gonadal development cycle of the Neotropical cichlid fish, Crenicichla menezesi, is described. This species exhibits sexual dimorphism only during the spawning season. First sexual maturity of females is attained earlier than the males. Both macroscopic and histological investigations of ovaries and testes revealed four stages of gonadal maturation. Mean batch fecundity of females was 372 (±10,41) of mature oocytes. This species is a partial spawner, with an extended spawning period. Monthly values of GSI and the condition factor are negatively correlated during the gonadal development cycle of this species. The Scientific World Journal 2012-08-01 /pmc/articles/PMC3415153/ /pubmed/22919339 http://dx.doi.org/10.1100/2012/579051 Text en Copyright © 2012 Andréa Soares de Araújo et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
de Araújo, Andréa Soares
do Nascimento, Wallace Silva
Yamamoto, Maria Emília
Chellappa, Sathyabama
Temporal Dynamics of Reproduction of the Neotropical Fish, Crenicichla menezesi (Perciformes: Cichlidae)
title Temporal Dynamics of Reproduction of the Neotropical Fish, Crenicichla menezesi (Perciformes: Cichlidae)
title_full Temporal Dynamics of Reproduction of the Neotropical Fish, Crenicichla menezesi (Perciformes: Cichlidae)
title_fullStr Temporal Dynamics of Reproduction of the Neotropical Fish, Crenicichla menezesi (Perciformes: Cichlidae)
title_full_unstemmed Temporal Dynamics of Reproduction of the Neotropical Fish, Crenicichla menezesi (Perciformes: Cichlidae)
title_short Temporal Dynamics of Reproduction of the Neotropical Fish, Crenicichla menezesi (Perciformes: Cichlidae)
title_sort temporal dynamics of reproduction of the neotropical fish, crenicichla menezesi (perciformes: cichlidae)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3415153/
https://www.ncbi.nlm.nih.gov/pubmed/22919339
http://dx.doi.org/10.1100/2012/579051
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