Evaluación de modelos de crecimiento de diferentes condiciones de cultivo de pejerrey (<i>Odontotesthes bonariensis</i>)

Autores
Solimano, Patricio José; García de Souza, Javier Ricardo; Maiztegui, Tomás; Bazzani, J. L.; Baigún, Claudio Rafael Mariano; Colautti, Darío César
Año de publicación
2014
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The pejerrey is one of the most important temperate native freshwater species of Argentina. Its culture is mainly done intensively and in recent years is being developed in floating cages in several Pampean lakes under semi-intensive and extensive conditions. To evaluate the growth of fish under different culture methodologies several models are used, most of which are based on the specific growth rate (SGR). The objective of this study is to compare how the SGR of pejerrey responds under different culture methods and generate a theoretical model to predict the growth that the species can reach. To carry out the models a data base was made with the available data of intensive, extensive and semi-intensive culture, to which an exponential and polynomial models were adjusted by the method of least squares and then the expected growth was simulated using the model that better fits. From the results it was observed that the polynomial model presented the best fit to different methods of culture. In all cases the models reflected the seasonality in the growth rates exhibited by the species, where SGR was lowest in winter and highest in spring. The growth simulation models also show that the semi-intensive culture could produce greater weight than other methods. Under these conditions, fish obtain zooplankton from the environment incorporating essential elements from its natural food source. This suggests that it is possible to improve the sizes of fish by using techniques that also incorporate natural food or its equivalent in the composition of the artificial diets.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
modelo de crecimiento polinomial
Peces
tasa de crecimiento
cultivo intensivo, semi-intensivo y extensivo
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/56937

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network_name_str SEDICI (UNLP)
spelling Evaluación de modelos de crecimiento de diferentes condiciones de cultivo de pejerrey (<i>Odontotesthes bonariensis</i>)Solimano, Patricio JoséGarcía de Souza, Javier RicardoMaiztegui, TomásBazzani, J. L.Baigún, Claudio Rafael MarianoColautti, Darío CésarCiencias Naturalesmodelo de crecimiento polinomialPecestasa de crecimientocultivo intensivo, semi-intensivo y extensivoThe pejerrey is one of the most important temperate native freshwater species of Argentina. Its culture is mainly done intensively and in recent years is being developed in floating cages in several Pampean lakes under semi-intensive and extensive conditions. To evaluate the growth of fish under different culture methodologies several models are used, most of which are based on the specific growth rate (SGR). The objective of this study is to compare how the SGR of pejerrey responds under different culture methods and generate a theoretical model to predict the growth that the species can reach. To carry out the models a data base was made with the available data of intensive, extensive and semi-intensive culture, to which an exponential and polynomial models were adjusted by the method of least squares and then the expected growth was simulated using the model that better fits. From the results it was observed that the polynomial model presented the best fit to different methods of culture. In all cases the models reflected the seasonality in the growth rates exhibited by the species, where SGR was lowest in winter and highest in spring. The growth simulation models also show that the semi-intensive culture could produce greater weight than other methods. Under these conditions, fish obtain zooplankton from the environment incorporating essential elements from its natural food source. This suggests that it is possible to improve the sizes of fish by using techniques that also incorporate natural food or its equivalent in the composition of the artificial diets.Facultad de Ciencias Naturales y Museo2014info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf219-228http://sedici.unlp.edu.ar/handle/10915/56937spainfo:eu-repo/semantics/altIdentifier/url/http://www.bacuatica.org/index.php/bacuatica/article/view/35info:eu-repo/semantics/altIdentifier/issn/1668-4869info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:38:51Zoai:sedici.unlp.edu.ar:10915/56937Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:38:51.564SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Evaluación de modelos de crecimiento de diferentes condiciones de cultivo de pejerrey (<i>Odontotesthes bonariensis</i>)
title Evaluación de modelos de crecimiento de diferentes condiciones de cultivo de pejerrey (<i>Odontotesthes bonariensis</i>)
spellingShingle Evaluación de modelos de crecimiento de diferentes condiciones de cultivo de pejerrey (<i>Odontotesthes bonariensis</i>)
Solimano, Patricio José
Ciencias Naturales
modelo de crecimiento polinomial
Peces
tasa de crecimiento
cultivo intensivo, semi-intensivo y extensivo
title_short Evaluación de modelos de crecimiento de diferentes condiciones de cultivo de pejerrey (<i>Odontotesthes bonariensis</i>)
title_full Evaluación de modelos de crecimiento de diferentes condiciones de cultivo de pejerrey (<i>Odontotesthes bonariensis</i>)
title_fullStr Evaluación de modelos de crecimiento de diferentes condiciones de cultivo de pejerrey (<i>Odontotesthes bonariensis</i>)
title_full_unstemmed Evaluación de modelos de crecimiento de diferentes condiciones de cultivo de pejerrey (<i>Odontotesthes bonariensis</i>)
title_sort Evaluación de modelos de crecimiento de diferentes condiciones de cultivo de pejerrey (<i>Odontotesthes bonariensis</i>)
dc.creator.none.fl_str_mv Solimano, Patricio José
García de Souza, Javier Ricardo
Maiztegui, Tomás
Bazzani, J. L.
Baigún, Claudio Rafael Mariano
Colautti, Darío César
author Solimano, Patricio José
author_facet Solimano, Patricio José
García de Souza, Javier Ricardo
Maiztegui, Tomás
Bazzani, J. L.
Baigún, Claudio Rafael Mariano
Colautti, Darío César
author_role author
author2 García de Souza, Javier Ricardo
Maiztegui, Tomás
Bazzani, J. L.
Baigún, Claudio Rafael Mariano
Colautti, Darío César
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
modelo de crecimiento polinomial
Peces
tasa de crecimiento
cultivo intensivo, semi-intensivo y extensivo
topic Ciencias Naturales
modelo de crecimiento polinomial
Peces
tasa de crecimiento
cultivo intensivo, semi-intensivo y extensivo
dc.description.none.fl_txt_mv The pejerrey is one of the most important temperate native freshwater species of Argentina. Its culture is mainly done intensively and in recent years is being developed in floating cages in several Pampean lakes under semi-intensive and extensive conditions. To evaluate the growth of fish under different culture methodologies several models are used, most of which are based on the specific growth rate (SGR). The objective of this study is to compare how the SGR of pejerrey responds under different culture methods and generate a theoretical model to predict the growth that the species can reach. To carry out the models a data base was made with the available data of intensive, extensive and semi-intensive culture, to which an exponential and polynomial models were adjusted by the method of least squares and then the expected growth was simulated using the model that better fits. From the results it was observed that the polynomial model presented the best fit to different methods of culture. In all cases the models reflected the seasonality in the growth rates exhibited by the species, where SGR was lowest in winter and highest in spring. The growth simulation models also show that the semi-intensive culture could produce greater weight than other methods. Under these conditions, fish obtain zooplankton from the environment incorporating essential elements from its natural food source. This suggests that it is possible to improve the sizes of fish by using techniques that also incorporate natural food or its equivalent in the composition of the artificial diets.
Facultad de Ciencias Naturales y Museo
description The pejerrey is one of the most important temperate native freshwater species of Argentina. Its culture is mainly done intensively and in recent years is being developed in floating cages in several Pampean lakes under semi-intensive and extensive conditions. To evaluate the growth of fish under different culture methodologies several models are used, most of which are based on the specific growth rate (SGR). The objective of this study is to compare how the SGR of pejerrey responds under different culture methods and generate a theoretical model to predict the growth that the species can reach. To carry out the models a data base was made with the available data of intensive, extensive and semi-intensive culture, to which an exponential and polynomial models were adjusted by the method of least squares and then the expected growth was simulated using the model that better fits. From the results it was observed that the polynomial model presented the best fit to different methods of culture. In all cases the models reflected the seasonality in the growth rates exhibited by the species, where SGR was lowest in winter and highest in spring. The growth simulation models also show that the semi-intensive culture could produce greater weight than other methods. Under these conditions, fish obtain zooplankton from the environment incorporating essential elements from its natural food source. This suggests that it is possible to improve the sizes of fish by using techniques that also incorporate natural food or its equivalent in the composition of the artificial diets.
publishDate 2014
dc.date.none.fl_str_mv 2014
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info:eu-repo/semantics/altIdentifier/issn/1668-4869
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
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