Effect of stocking density on growth, survival and condition factor in tropical gar (Atractosteus tropicus Gill, 1863) juveniles

ABSTRACT. Tropical gar (Atractosteus tropicus) is currently exploited regionally as food and commercialized in the aquarium trade. Natural populations of A. tropicus may already be negatively affected by anthropogenic alteration of the areas in which it is distributed. However, it is necessary to de...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Martínez-Cárdenas,Leonardo, Hernández-Cortez,Miriam I., Espinosa-Chaurand,Daniel, Castañeda-Chavez,María R., León-Fernández,Andrés E., Valdez Hernández,Edna F., Bernal Rodríguez,Carlos E., Álvarez-González,Carlos A.
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2020
Materias:	Atractosteus tropicus stocking density feeding gar aquaria juvenile tropical aquaculture
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000400570
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-560X2020000400570
record_format	dspace
spelling	oai:scielo:S0718-560X20200004005702020-09-23Effect of stocking density on growth, survival and condition factor in tropical gar (Atractosteus tropicus Gill, 1863) juvenilesMartínez-Cárdenas,LeonardoHernández-Cortez,Miriam I.Espinosa-Chaurand,DanielCastañeda-Chavez,María R.León-Fernández,Andrés E.Valdez Hernández,Edna F.Bernal Rodríguez,Carlos E.Álvarez-González,Carlos A. Atractosteus tropicus stocking density feeding gar aquaria juvenile tropical aquaculture ABSTRACT. Tropical gar (Atractosteus tropicus) is currently exploited regionally as food and commercialized in the aquarium trade. Natural populations of A. tropicus may already be negatively affected by anthropogenic alteration of the areas in which it is distributed. However, it is necessary to deepen the knowledge for the optimization of its culture. A. tropicus cultured in three stocking densities: 100, 200, and 300 ind m-3 (D4, D8, and D12, respectively) were used in the present study to examine the effect on growth, survival, and condition factor. At the end of the eight-week trial, D4 was statistically superior in weight, length, and SGR compared to D12. While D8 was statistically similar to D4 and D12 in weight and length. There were no significant differences in the survival and condition of the fish. The optimum density in the production systems generates the optimal use of resources and the increase in the profitability of the system. Based on the results, it is recommendable a stocking density of 200 fish m-3 for an increase in the profitability of the culture infrastructure for its production as food or ornamental purposes.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.48 n.4 20202020-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000400570en10.3856/vol48-issue4-fulltext-2452
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Atractosteus tropicus stocking density feeding gar aquaria juvenile tropical aquaculture
spellingShingle	Atractosteus tropicus stocking density feeding gar aquaria juvenile tropical aquaculture Martínez-Cárdenas,Leonardo Hernández-Cortez,Miriam I. Espinosa-Chaurand,Daniel Castañeda-Chavez,María R. León-Fernández,Andrés E. Valdez Hernández,Edna F. Bernal Rodríguez,Carlos E. Álvarez-González,Carlos A. Effect of stocking density on growth, survival and condition factor in tropical gar (Atractosteus tropicus Gill, 1863) juveniles
description	ABSTRACT. Tropical gar (Atractosteus tropicus) is currently exploited regionally as food and commercialized in the aquarium trade. Natural populations of A. tropicus may already be negatively affected by anthropogenic alteration of the areas in which it is distributed. However, it is necessary to deepen the knowledge for the optimization of its culture. A. tropicus cultured in three stocking densities: 100, 200, and 300 ind m-3 (D4, D8, and D12, respectively) were used in the present study to examine the effect on growth, survival, and condition factor. At the end of the eight-week trial, D4 was statistically superior in weight, length, and SGR compared to D12. While D8 was statistically similar to D4 and D12 in weight and length. There were no significant differences in the survival and condition of the fish. The optimum density in the production systems generates the optimal use of resources and the increase in the profitability of the system. Based on the results, it is recommendable a stocking density of 200 fish m-3 for an increase in the profitability of the culture infrastructure for its production as food or ornamental purposes.
author	Martínez-Cárdenas,Leonardo Hernández-Cortez,Miriam I. Espinosa-Chaurand,Daniel Castañeda-Chavez,María R. León-Fernández,Andrés E. Valdez Hernández,Edna F. Bernal Rodríguez,Carlos E. Álvarez-González,Carlos A.
author_facet	Martínez-Cárdenas,Leonardo Hernández-Cortez,Miriam I. Espinosa-Chaurand,Daniel Castañeda-Chavez,María R. León-Fernández,Andrés E. Valdez Hernández,Edna F. Bernal Rodríguez,Carlos E. Álvarez-González,Carlos A.
author_sort	Martínez-Cárdenas,Leonardo
title	Effect of stocking density on growth, survival and condition factor in tropical gar (Atractosteus tropicus Gill, 1863) juveniles
title_short	Effect of stocking density on growth, survival and condition factor in tropical gar (Atractosteus tropicus Gill, 1863) juveniles
title_full	Effect of stocking density on growth, survival and condition factor in tropical gar (Atractosteus tropicus Gill, 1863) juveniles
title_fullStr	Effect of stocking density on growth, survival and condition factor in tropical gar (Atractosteus tropicus Gill, 1863) juveniles
title_full_unstemmed	Effect of stocking density on growth, survival and condition factor in tropical gar (Atractosteus tropicus Gill, 1863) juveniles
title_sort	effect of stocking density on growth, survival and condition factor in tropical gar (atractosteus tropicus gill, 1863) juveniles
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000400570
work_keys_str_mv	AT martinezcardenasleonardo effectofstockingdensityongrowthsurvivalandconditionfactorintropicalgaratractosteustropicusgill1863juveniles AT hernandezcortezmiriami effectofstockingdensityongrowthsurvivalandconditionfactorintropicalgaratractosteustropicusgill1863juveniles AT espinosachauranddaniel effectofstockingdensityongrowthsurvivalandconditionfactorintropicalgaratractosteustropicusgill1863juveniles AT castanedachavezmariar effectofstockingdensityongrowthsurvivalandconditionfactorintropicalgaratractosteustropicusgill1863juveniles AT leonfernandezandrese effectofstockingdensityongrowthsurvivalandconditionfactorintropicalgaratractosteustropicusgill1863juveniles AT valdezhernandezednaf effectofstockingdensityongrowthsurvivalandconditionfactorintropicalgaratractosteustropicusgill1863juveniles AT bernalrodriguezcarlose effectofstockingdensityongrowthsurvivalandconditionfactorintropicalgaratractosteustropicusgill1863juveniles AT alvarezgonzalezcarlosa effectofstockingdensityongrowthsurvivalandconditionfactorintropicalgaratractosteustropicusgill1863juveniles
_version_	1714205239634034688

Effect of stocking density on growth, survival and condition factor in tropical gar (Atractosteus tropicus Gill, 1863) juveniles

Ejemplares similares