Edad y crecimiento del híbrido de tilapia Oreochromis niloticus x Oreochromis aureus (Perciformes: Cichlidae) en la represa ?Zimapán? Hidalgo, México
Studies on age and growth in fishes are essential to establish models on population dynamics. The previos issues were determined in this study by scale growth analyses. Between September 2003 and May 2004, 382 organisms were captured using gill and atarraya nets. Eight samples were developed every m...
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Universidad de Costa Rica
2011
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/3138 |
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RBT31382022-06-06T18:56:43Z Edad y crecimiento del híbrido de tilapia Oreochromis niloticus x Oreochromis aureus (Perciformes: Cichlidae) en la represa “Zimapán” Hidalgo, México Edad y crecimiento del híbrido de tilapia Oreochromis niloticus x Oreochromis aureus (Perciformes: Cichlidae) en la represa ?Zimapán? Hidalgo, México A. Gómez-Ponce, M. Granados-Flores, K. Padilla, C. López-Hernández, M. Núñez-Nogueira, G. fishery growth rings reproductive index scales pesquería anillos de crecimiento índice reproductivo escamas Studies on age and growth in fishes are essential to establish models on population dynamics. The previos issues were determined in this study by scale growth analyses. Between September 2003 and May 2004, 382 organisms were captured using gill and atarraya nets. Eight samples were developed every month a long this study. Standard length in centimeters (Le), total weight in grams (Pt), scale length in centimeters (Lesc) and growth rings were determined. The size and weight ranged from 38 to 232mm (Le) and 8.7 to 311.9g (Pt), respectively. The growth rings analyses reveal four age groups, being the sec-ond group the most representative with 34.3% of the total sampled. The scale ring analyses showed two growth rings, one develops between November-January and the other between April-May, in good correlation with low temperature and gonad development, respectively. The growth parameters were established as: L=281.1mm, W=877.1g, K=0.33 and T0=0.88year-1. The growth curves based on length and weight were described by using the von Bertalanffy model: Le =28.11[1-e-0.33(t+0.88)] and Pt=877.17[1-e-0.33(t+0.88)]3. Finally, it is concluded that commercial catches in this dam are between a year and year and half-old when exploited. Studies on age and growth in fishes are essential to establish models on population dynamics. The previos issues were determined in this study by scale growth analyses. Between September 2003 and May 2004, 382 organisms were captured using gill and atarraya nets. Eight samples were developed every month a long this study. Standard length in centimeters (Le), total weight in grams (Pt), scale length in centimeters (Lesc) and growth rings were determined. The size and weight ranged from 38 to 232mm (Le) and 8.7 to 311.9g (Pt), respectively. The growth rings analyses reveal four age groups, being the second group the most representative with 34.3% of the total sampled. The scale ring analyses showed two growth rings, one develops between November-January and the other between April-May, in good correlation with low temperature and gonad development, respectively. The growth parameters were established as: L??=281.1mm, W??=877.1g, K=0.33 and T0=0.88year-1. The growth curves based on length and weight were described by using the von Bertalanffy model: Le =28.11[1-e-0.33(t+0.88)] and Pt=877.17[1-e-0.33(t+0.88)]3. Finally, it is concluded that commercial catches in this dam are between a year and year and half-old when exploited. Universidad de Costa Rica 2011-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/3138 10.15517/rbt.v0i0.3138 Revista de Biología Tropical; Vol. 59 No. 2 (2011): Volume 59 – Regular number 2 – June 2011; 761–770 Revista de Biología Tropical; Vol. 59 Núm. 2 (2011): Volumen 59 – Número regular 2 – Junio 2011; 761–770 Revista Biología Tropical; Vol. 59 N.º 2 (2011): Volume 59 – Regular number 2 – June 2011; 761–770 2215-2075 0034-7744 10.15517/rbt.v0i0 spa https://revistas.ucr.ac.cr/index.php/rbt/article/view/3138/3045 Copyright (c) 2011 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
| institution |
Universidad de Costa Rica |
| collection |
Revista de Biología Tropical |
| language |
spa |
| format |
Online |
| author |
A. Gómez-Ponce, M. Granados-Flores, K. Padilla, C. López-Hernández, M. Núñez-Nogueira, G. |
| spellingShingle |
A. Gómez-Ponce, M. Granados-Flores, K. Padilla, C. López-Hernández, M. Núñez-Nogueira, G. Edad y crecimiento del híbrido de tilapia Oreochromis niloticus x Oreochromis aureus (Perciformes: Cichlidae) en la represa ?Zimapán? Hidalgo, México |
| author_facet |
A. Gómez-Ponce, M. Granados-Flores, K. Padilla, C. López-Hernández, M. Núñez-Nogueira, G. |
| author_sort |
A. Gómez-Ponce, M. |
| description |
Studies on age and growth in fishes are essential to establish models on population dynamics. The previos issues were determined in this study by scale growth analyses. Between September 2003 and May 2004, 382 organisms were captured using gill and atarraya nets. Eight samples were developed every month a long this study. Standard length in centimeters (Le), total weight in grams (Pt), scale length in centimeters (Lesc) and growth rings were determined. The size and weight ranged from 38 to 232mm (Le) and 8.7 to 311.9g (Pt), respectively. The growth rings analyses reveal four age groups, being the second group the most representative with 34.3% of the total sampled. The scale ring analyses showed two growth rings, one develops between November-January and the other between April-May, in good correlation with low temperature and gonad development, respectively. The growth parameters were established as: L??=281.1mm, W??=877.1g, K=0.33 and T0=0.88year-1. The growth curves based on length and weight were described by using the von Bertalanffy model: Le =28.11[1-e-0.33(t+0.88)] and Pt=877.17[1-e-0.33(t+0.88)]3. Finally, it is concluded that commercial catches in this dam are between a year and year and half-old when exploited. |
| title |
Edad y crecimiento del híbrido de tilapia Oreochromis niloticus x Oreochromis aureus (Perciformes: Cichlidae) en la represa ?Zimapán? Hidalgo, México |
| title_short |
Edad y crecimiento del híbrido de tilapia Oreochromis niloticus x Oreochromis aureus (Perciformes: Cichlidae) en la represa ?Zimapán? Hidalgo, México |
| title_full |
Edad y crecimiento del híbrido de tilapia Oreochromis niloticus x Oreochromis aureus (Perciformes: Cichlidae) en la represa ?Zimapán? Hidalgo, México |
| title_fullStr |
Edad y crecimiento del híbrido de tilapia Oreochromis niloticus x Oreochromis aureus (Perciformes: Cichlidae) en la represa ?Zimapán? Hidalgo, México |
| title_full_unstemmed |
Edad y crecimiento del híbrido de tilapia Oreochromis niloticus x Oreochromis aureus (Perciformes: Cichlidae) en la represa ?Zimapán? Hidalgo, México |
| title_sort |
edad y crecimiento del híbrido de tilapia oreochromis niloticus x oreochromis aureus (perciformes: cichlidae) en la represa ?zimapán? hidalgo, méxico |
| title_alt |
Edad y crecimiento del híbrido de tilapia Oreochromis niloticus x Oreochromis aureus (Perciformes: Cichlidae) en la represa “Zimapán” Hidalgo, México |
| publisher |
Universidad de Costa Rica |
| publishDate |
2011 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/3138 |
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