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ZENODO
Article . 2011
Data sources: ZENODO
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CONICET Digital
Article . 2011
License: CC BY NC SA
Data sources: CONICET Digital
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Growth and feeding of Patagonian pejerrey Odontesthes hatcheri reared in net cages

descriptionPublicationkeyboard_double_arrow_right Article 01 May 2011 Argentina English Publisher:Zenodo
Authors: Hualde, Juan Pablo; Ceferino Torres, Walter Damián; Moreno, Pablo; Ferrada, Mirna Angelina; Demicheli, Mariela Ana; Molinari, Leonardo Javier; Luquet, Carlos Marcelo;

handle: 11336/278122

Growth and feeding of Patagonian pejerrey Odontesthes hatcheri reared in net cages

Abstract

An experimentwas performed to evaluate the performance of Patagonian pejerrey during net cage rearing in the oligomesotrophic reservoir Exequiel Ramos Mex|¤a. Survival, growth, nutrition and reproduction were evaluated for two lots of pejerrey, initial weights 4.0 and 2.5 g, reared in net cages for 22 and 14 months respectively. Fish were stocked at 29 and 48 individualsm3 densities and fed with an experimental pejerrey feed. During the experiment, temperature £uctuated between 6.6 and19.6 1C. The two lots did not show substantial di¡erences in survival (pooled survival at the end of the experiment 480%) and the thermal-unit growth coe⁄cient (TGC), daily feed intake and feeding e⁄ciency were 0.43 0.19, 1.70 0.80 and 53.6 9.9 respectively. Digestive tract analysis showed that caged pejerrey can consume substantial quantities of natural food, taking advantage of its planktivorous condition. Pejerrey showed high percentage survival, slow growth and early sexual maturation in captivity. The use of the TGC is proposed as a model for describing the growth pattern of this species and other pejerrey under culture conditions.

Fil: Luquet, Carlos Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina

Fil: Ceferino Torres, Walter Damián. Gobierno de la Provincia del Neuquen. Secretaria de Desarrollo Territorial y Ambiente. Centro de Ecologia Aplicada de Neuquen (cean); Argentina

Fil: Molinari, Leonardo Javier. Gobierno de la Provincia del Neuquen. Secretaria de Desarrollo Territorial y Ambiente. Centro de Ecologia Aplicada de Neuquen (cean); Argentina

Fil: Demicheli, Mariela Ana. Gobierno de la Provincia del Neuquen. Secretaria de Desarrollo Territorial y Ambiente. Centro de Ecologia Aplicada de Neuquen (cean); Argentina

Fil: Hualde, Juan Pablo. Gobierno de la Provincia del Neuquen. Secretaria de Desarrollo Territorial y Ambiente. Centro de Ecologia Aplicada de Neuquen (cean); Argentina

Fil: Moreno, Pablo. Gobierno de la Provincia del Neuquen. Secretaria de Desarrollo Territorial y Ambiente. Centro de Ecologia Aplicada de Neuquen (cean); Argentina

Fil: Ferrada, Mirna Angelina. Universidad Nacional del Comahue; Argentina

Country
Argentina
Related Organizations
Keywords

ODONTESTHES HATCHERI, AQUACULTURE, https://purl.org/becyt/ford/4.1, PATAGONIAN PEJERREY, https://purl.org/becyt/ford/4, NET CAGE

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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