Reproductive biology of Oreochromis niloticus (Perciformes: Cichlidae) at Emiliano Zapata dam, Morelos, Mexico
The reproductive season of tilapia was studied by monthly samplings at Emiliano Zapata dam, Morelos State, Mexico. From February 1999 through February 2000 a sample of 50 fish was taken from the commercial catch (castnet, 6.5 cm of mesh size). The observed sex ratio was 1:1.29 (females:males) (χ²=10...
| Autores: | , , , |
|---|---|
| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2005 |
| País: | Costa Rica |
| Recursos: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Idioma: | inglés |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/14666 |
| Acesso em linha: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/14666 |
| Access Level: | acceso abierto |
| Palavra-chave: | reproduction oreochromis niloticus gonadosomatic index hepatosomatic index fecundity reproducción índice gonadosomático índice hepatosomático fecundidad |
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Reproductive biology of Oreochromis niloticus (Perciformes: Cichlidae) at Emiliano Zapata dam, Morelos, MexicoReproductive biology of Oreochromis niloticus (Perciformes: Cichlidae) at Emiliano Zapata dam, Morelos, MexicoPeña-Mendoza, BGómez-Márquez, J L.Salgado-Ugarte, I HRamírez-Noguera, Dreproductionoreochromis niloticusgonadosomatic indexhepatosomatic indexfecundityreproducciónoreochromis niloticusíndice gonadosomáticoíndice hepatosomáticofecundidadThe reproductive season of tilapia was studied by monthly samplings at Emiliano Zapata dam, Morelos State, Mexico. From February 1999 through February 2000 a sample of 50 fish was taken from the commercial catch (castnet, 6.5 cm of mesh size). The observed sex ratio was 1:1.29 (females:males) (χ²=10.26; p<0.05). The tilapia reached maturity at 151.3 mm (females) and 152.0 mm (males) of total length. Rainy (August) and dry (February) seasons were determined as the breeding period. Fecundity variation was better correlated with length (r=0.7473; p<0.002) than with weight (r=0.7395; p<0.002). The fecundity ranged between 243 and 847 oocytes per fish, with egg diameter from 300 to 3 700 μm. Intensive breeding activity in August and February coincide with phytoplankton biomass increase.Se analizó la biología reproductiva de la tilapia en la presa Emiliano Zapata, Morelos, México. Para esto se realizaron muestreos de febrero 1999 a febrero 2000. Se tomaron 50 organismos mensuales de la captura comercial obtenidos con una atarraya de 6.5 cm de luz de malla. La proporción sexual fue de1:1.29 hembras:machos (χ²=10.26; p<0.05). La madurez sexual se alcanza a los 151.3 mm (hembras) y a los 152.0 mm (machos) de longitud total. Se detectaron dos épocas de reproducción para la especie: durante la estación lluviosa (agosto) y durante la estación de secas (febrero). La fecundidad relativa presentó mayor correlación con la longitud (r=0.7473; p<0.002) que con el peso (r=0.7395; p<0.002). Por otra parte, el intervalo para la fecundidad osciló entre 243 y 847 ovocitos por pez, con diámetros de 300 a 3 700 μm. Asimismo, la actividad reproductiva de la especie en Agosto y Febrero, coincide con el incremento de biomasa fitoplanctónicaUniversidad de Costa Rica2005-12-01info:eu-repo/semantics/publishedVersionartículo originalhttp://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articleapplication/pdfhttps://revistas.ucr.ac.cr/index.php/rbt/article/view/1466610.15517/rbt.v53i3-4.14666Revista de Biología Tropical; Vol. 53 No. 3-4 (2005): Volume 53 - Regular number 3-4 – September-December 2005; 515–522Revista de Biología Tropical; Vol. 53 Núm. 3-4 (2005): Volumen 53 - Número regular 3-4 – Setiembre-Diciembre 2005; 515–522Revista Biología Tropical; Vol. 53 N.º 3-4 (2005): Volumen 53 - Número regular 3-4 – Setiembre-Diciembre 2005; 515–5222215-20750034-774410.15517/rbt.v53i3-4reponame:Portal de Revistas UCRinstname:Universidad de Costa Ricainstacron:UCRenghttps://revistas.ucr.ac.cr/index.php/rbt/article/view/14666/13910Derechos de autor 2005 Revista de Biología Tropicalhttp://creativecommons.org/licenses/by/4.0acceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccess2022-05-30T17:45:40Zoai:portal.ucr.ac.cr:article/14666Portal de revistashttps://revistas.ucr.ac.cr/Universidadhttp://www.ucr.ac.crhttps://revistas.ucr.ac.cr/index.php/index/oaijorge.polanco@ucr.ac.crCosta RicaNo aplicaNo aplicaNo aplicaopendoar:2025-08-13T10:16:25.499Portal de Revistas UCR - Universidad de Costa Ricafalse |
| dc.title.none.fl_str_mv |
Reproductive biology of Oreochromis niloticus (Perciformes: Cichlidae) at Emiliano Zapata dam, Morelos, Mexico Reproductive biology of Oreochromis niloticus (Perciformes: Cichlidae) at Emiliano Zapata dam, Morelos, Mexico |
| title |
Reproductive biology of Oreochromis niloticus (Perciformes: Cichlidae) at Emiliano Zapata dam, Morelos, Mexico |
| spellingShingle |
Reproductive biology of Oreochromis niloticus (Perciformes: Cichlidae) at Emiliano Zapata dam, Morelos, Mexico Peña-Mendoza, B reproduction oreochromis niloticus gonadosomatic index hepatosomatic index fecundity reproducción oreochromis niloticus índice gonadosomático índice hepatosomático fecundidad |
| title_short |
Reproductive biology of Oreochromis niloticus (Perciformes: Cichlidae) at Emiliano Zapata dam, Morelos, Mexico |
| title_full |
Reproductive biology of Oreochromis niloticus (Perciformes: Cichlidae) at Emiliano Zapata dam, Morelos, Mexico |
| title_fullStr |
Reproductive biology of Oreochromis niloticus (Perciformes: Cichlidae) at Emiliano Zapata dam, Morelos, Mexico |
| title_full_unstemmed |
Reproductive biology of Oreochromis niloticus (Perciformes: Cichlidae) at Emiliano Zapata dam, Morelos, Mexico |
| title_sort |
Reproductive biology of Oreochromis niloticus (Perciformes: Cichlidae) at Emiliano Zapata dam, Morelos, Mexico |
| dc.creator.none.fl_str_mv |
Peña-Mendoza, B Gómez-Márquez, J L. Salgado-Ugarte, I H Ramírez-Noguera, D |
| author |
Peña-Mendoza, B |
| author_facet |
Peña-Mendoza, B Gómez-Márquez, J L. Salgado-Ugarte, I H Ramírez-Noguera, D |
| author_role |
author |
| author2 |
Gómez-Márquez, J L. Salgado-Ugarte, I H Ramírez-Noguera, D |
| author2_role |
author author author |
| dc.subject.none.fl_str_mv |
reproduction oreochromis niloticus gonadosomatic index hepatosomatic index fecundity reproducción oreochromis niloticus índice gonadosomático índice hepatosomático fecundidad |
| topic |
reproduction oreochromis niloticus gonadosomatic index hepatosomatic index fecundity reproducción oreochromis niloticus índice gonadosomático índice hepatosomático fecundidad |
| description |
The reproductive season of tilapia was studied by monthly samplings at Emiliano Zapata dam, Morelos State, Mexico. From February 1999 through February 2000 a sample of 50 fish was taken from the commercial catch (castnet, 6.5 cm of mesh size). The observed sex ratio was 1:1.29 (females:males) (χ²=10.26; p<0.05). The tilapia reached maturity at 151.3 mm (females) and 152.0 mm (males) of total length. Rainy (August) and dry (February) seasons were determined as the breeding period. Fecundity variation was better correlated with length (r=0.7473; p<0.002) than with weight (r=0.7395; p<0.002). The fecundity ranged between 243 and 847 oocytes per fish, with egg diameter from 300 to 3 700 μm. Intensive breeding activity in August and February coincide with phytoplankton biomass increase. |
| publishDate |
2005 |
| dc.date.none.fl_str_mv |
2005-12-01 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion artículo original http://purl.org/coar/resource_type/c_2df8fbb1 info:eu-repo/semantics/article |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/14666 10.15517/rbt.v53i3-4.14666 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/14666 |
| identifier_str_mv |
10.15517/rbt.v53i3-4.14666 |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/14666/13910 |
| dc.rights.none.fl_str_mv |
Derechos de autor 2005 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 acceso abierto http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
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Derechos de autor 2005 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 acceso abierto http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
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Universidad de Costa Rica |
| publisher.none.fl_str_mv |
Universidad de Costa Rica |
| dc.source.none.fl_str_mv |
Revista de Biología Tropical; Vol. 53 No. 3-4 (2005): Volume 53 - Regular number 3-4 – September-December 2005; 515–522 Revista de Biología Tropical; Vol. 53 Núm. 3-4 (2005): Volumen 53 - Número regular 3-4 – Setiembre-Diciembre 2005; 515–522 Revista Biología Tropical; Vol. 53 N.º 3-4 (2005): Volumen 53 - Número regular 3-4 – Setiembre-Diciembre 2005; 515–522 2215-2075 0034-7744 10.15517/rbt.v53i3-4 reponame:Portal de Revistas UCR instname:Universidad de Costa Rica instacron:UCR |
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UCR |
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Portal de Revistas UCR |
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Portal de Revistas UCR - Universidad de Costa Rica |
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jorge.polanco@ucr.ac.cr |
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