New approaches for growth improvement in pejerrey <i>Odontesthes bonariensis</i> (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae)

The pejerrey is the most important recreational species in shallow temperate lakes and reservoirs of Argentina and the attempts to develop its culture have started a century ago. A common constraint of pejerrey aquaculture is its poor growth under traditional intensive rearing methods. The aim of th...

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Autores principales: Solimano, Patricio José, García de Souza, Javier Ricardo, Maiztegui, Tomás, Baigún, Claudio Rafael Mariano, Colautti, Darío César
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Naturales
Aquaculture
Zooplanktivorous fish
Floating cages
Growth rate
Fish growth
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/96059
https://ri.conicet.gov.ar/11336/22242
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-96059
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Aquaculture
Zooplanktivorous fish
Floating cages
Growth rate
Fish growth
spellingShingle Ciencias Naturales
Aquaculture
Zooplanktivorous fish
Floating cages
Growth rate
Fish growth
Solimano, Patricio José
García de Souza, Javier Ricardo
Maiztegui, Tomás
Baigún, Claudio Rafael Mariano
Colautti, Darío César
New approaches for growth improvement in pejerrey <i>Odontesthes bonariensis</i> (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae)
topic_facet Ciencias Naturales
Aquaculture
Zooplanktivorous fish
Floating cages
Growth rate
Fish growth
description The pejerrey is the most important recreational species in shallow temperate lakes and reservoirs of Argentina and the attempts to develop its culture have started a century ago. A common constraint of pejerrey aquaculture is its poor growth under traditional intensive rearing methods. The aim of this study was to assess by innovative culture methods for pejerrey if the species might maintain high growth rates, and to discuss if growth rate is a critical constraint for the species culture. Four floating cages were installed at La Salada de Monasterio lake and each one was stocked with 300 juveniles. From January through March all fish were exposed to natural zooplankton as food source, whereas from April to September two cages were supplied daily with artificial food. The fish exposed to artificial supplementary diets exhibited significantly higher growth rates than those in the control cages, and exceeded the values known in pejerrey culture. The results suggest that the species potential growth is not fully exploited by common intensive methods and it can be improved by semi-intensive techniques. Indeed, if a better understanding of the species nutritional requirements is achieved, pejerrey culture could be enhanced.
format Articulo
Articulo
author Solimano, Patricio José
García de Souza, Javier Ricardo
Maiztegui, Tomás
Baigún, Claudio Rafael Mariano
Colautti, Darío César
author_facet Solimano, Patricio José
García de Souza, Javier Ricardo
Maiztegui, Tomás
Baigún, Claudio Rafael Mariano
Colautti, Darío César
author_sort Solimano, Patricio José
title New approaches for growth improvement in pejerrey <i>Odontesthes bonariensis</i> (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae)
title_short New approaches for growth improvement in pejerrey <i>Odontesthes bonariensis</i> (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae)
title_full New approaches for growth improvement in pejerrey <i>Odontesthes bonariensis</i> (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae)
title_fullStr New approaches for growth improvement in pejerrey <i>Odontesthes bonariensis</i> (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae)
title_full_unstemmed New approaches for growth improvement in pejerrey <i>Odontesthes bonariensis</i> (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae)
title_sort new approaches for growth improvement in pejerrey <i>odontesthes bonariensis</i> (valenciennes, 1835) culture (atherinomorpha: atherinopsidae)
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/96059
https://ri.conicet.gov.ar/11336/22242
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