Edad y crecimiento de la mojarra Oreochromis aureus (Pisces: Cichlidae) en la Presa Sanalona, Sinaloa, México

Beltrán-Álvarez, Rigoberto; Sánchez-Palacios, Jesús; Valdez, Guadalupe L.; Ortega-Salas, A. A.

doi:10.15517/rbt.v58i1.5213

Cited by 7 publications

(10 citation statements)

References 15 publications

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“…se caracteriza por presentar un rápido crecimiento y una fácil comercialización, debido a que son considerados como productos relativamente baratos y de fácil adquisición (Díaz 1985, Gómez-Márquez et al 2008. Esta situación ha mejorado los estándares de vida de las comunidades rurales relacionadas con la pesquería (Beltrán -Álvarez et al 2009).…”

Section: Edad Y Crecimiento Del Híbrido De Tilapiaunclassified

Edad y crecimiento del híbrido de tilapia Oreochromis niloticus x Oreochromis aureus (Perciformes: Cichlidae) en la represa ?Zimapán? Hidalgo, México

Gómez-Ponce¹,

Granados-Flores²,

Padilla³

et al. 2010

RBT

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Age and growth of the hybrid tilapia Oreochromis niloticus x Oreochromis aureus (Perciformes: Cichlidae) in the dam "Zimapan" Mexico. 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 (L e), total weight in grams (P t), scale length in centimeters (L esc) and growth rings were determined. The size and weight ranged from 38 to 232mm (L e) and 8.7 to 311.9g (P t), 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 T 0 =0.88year-1. The growth curves based on length and weight were described by using the von Bertalanffy model: L e =28.11[1-e-0.33(t+0.88) ] and P t =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. Rev. Biol. Trop. 59 (2): 761-770. Epub 2011 June 01.

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Section: Edad Y Crecimiento Del Híbrido De Tilapiaunclassified

Edad y crecimiento del híbrido de tilapia Oreochromis niloticus x Oreochromis aureus (Perciformes: Cichlidae) en la represa ?Zimapán? Hidalgo, México

Gómez-Ponce¹,

Granados-Flores²,

Padilla³

et al. 2010

RBT

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“…4). Several authors have reported an ecological relationship between the k and r parameters (Krebs, 1985;Beltrán-Álvarez et al 2009).…”

Section: Discussionmentioning

confidence: 99%

Explotación y evaluación de la pesquería de tilapia ( Oreochromis spp.) En el embalse “Zimapám” Fernando Hiriart Balderrama, Hidalgo, México

2012

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Oreochromis spp. fishing in the Fernando Hiriart Balderrama Reservior began in 1997 and its effects had never been studied before. Schaefer and Fox’s biomass dynamic model were used in order to obtain the first evaluation of this resource and to analyze the presence of record errors (or observation errors) in the annual total catch data set. The number of fishermen was used as the fishing effort unit. Schaefer´s model proved to be statically reliable: Oreochromis spp. was estimated at the maximum population size value of k = 9 000 tons and reproduction rate value at annual r = 0.730. Considering those ecological and biological strategies, Schaefer´s model showed that great biomass levels (predicted biomass) have been produced in the Zimapán reservior; however, only a small part of this biomass was exploited during the analyzed period. The results indicate that tilapia fishery in the Zimapán Reservoir was at equilibrium or was not over-fished between 1997 and 2006 because historical tilapia records observed in Schaefer´s model were far from the k parameter and below the MSY value. With this exploitation type, the fishing effort can increase to up to 7 203 fishermen (level of fishing effort at which the maximum sustainable yield is achieved (fMSY)). However, in order to avoid an increase of the non-controlled fishing effort a similar analysis is recommended with recent data. La pesca de la tilapia Oreochromis spp. en la presa hidroeléctrica Fernando Hiriart Balderrama comenzó en 1997, esta pesquería nunca ha sido evaluada. Fueron utilizados los modelos dinámicos de biomasa de Schaefer y Fox para obtener la primera evaluación de este recurso y para analizar la presencia de errores de registro (errores de observación) en la captura anual total. El número de pescadores fue usado como la unidad de esfuerzo de pesca. El modelo de Schaefer resultó estadísticamente confiable y para Oreochromis spp. fueron estimados el tamaño máximo de población en k = 9 000 tons y la tasa de reproducción en r = 0.730 anual. Considerando estas estrategias ecológicas y biológicas, el modelo de Schaefer sugirió que grandes niveles de biomasa (biomasa predicha) fueron producidas en la presa Zimapán, pero solo una pequeña parte de esta biomasa fue explotada durante el periodo analizado. Los resultados indicaron que la pesquería de la tilapia en la presa Zimapán estuvo en equilibrio o no fue sobreexplotada entre 1997 y el 2006, porque los registros históricos en el modelo de Schaefer fueron observados muy lejos del parámetro k y por debajo del valor MSY. Con este tipo de explotación, el esfuerzo de pesca podría incrementarse hasta alcanzar 7 203 número de pescadores (nivel de esfuerzo de pesca en el cual se activa el rendimiento máximo sostenible (fMSY)), pero para evitar un incremento no controlado del esfuerzo de pesca, se recomienda hacer un análisis similar integrando datos recientes.

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“…The literature reports differences between males and females in lobster (Cabrera & Salas, 2011) and octopus (Boyle & Rodhouse, 2005); in the case of tilapia, different comparisons have shown that the males grow larger than the females (Beltrán-Álvarez, Sán-chez-Palacios, Valdez, & Ortega-Salas, 2010).…”

Section: Methodsmentioning

confidence: 99%

Inter-cohort growth for three tropical resources: tilapia, octopus and lobster

Velázquez‐Abunader

Muñoz²,

Salas

et al. 2015

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Abstract:Growth parameters are an important component for the stock assessment of exploited aquatic species. However, it is often difficult to apply direct methods to estimate growth and to analyse the differences between males and females, particularly in tropical areas. The objective of this study was to analyse the inter-cohort growth of three tropical resources and discuss the possible fisheries management implications. A simple method was used to compare individual growth curves obtained from length frequency distribution analysis, illustrated by case studies of three tropical species from different aquatic environments: tilapia (Oreochromis aureus), red octopus (Octopus maya) and the Caribbean spiny lobster (Panulirus argus). The analysis undertaken compared the size distribution of males and females of a given cohort through modal progression analysis. The technique used proved to be useful for highlighting the differences in growth between females and males of a specific cohort. The potential effect of extrinsic and intrinsic factors on the organism's development as reflected in the size distribution of the cohorts is discussed. Rev. Biol. Trop. 63 (3): 617-627. Epub 2015 September 01.

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Edad y crecimiento de la mojarra Oreochromis aureus (Pisces: Cichlidae) en la Presa Sanalona, Sinaloa, México

Cited by 7 publications

References 15 publications

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

Explotación y evaluación de la pesquería de tilapia ( Oreochromis spp.) En el embalse “Zimapám” Fernando Hiriart Balderrama, Hidalgo, México

Inter-cohort growth for three tropical resources: tilapia, octopus and lobster

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