Zootechnical performance and interaction between Penaeus schmitti Burkenroad, 1936 and Penaeus vannamei Boone, 1931 reared under laboratory conditions

ABSTRACT To compare the zootechnical performance of the Brazilian native shrimp Penaeus schmitti and the exotic shrimp Penaeus vannamei, juveniles were grown under controlled conditions. Both species were simultaneously cultivated (monoculture) in separate 70 L plastic tanks at two different densiti...

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Autores principales:	Madrigal,Rafael Fernandez de Alaiza Garcia, Silva,Ubiratã de Assis Teixeira da, Ballester,Eduardo Luis Cupertino
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2020
Materias:	Penaeus schmitti Penaeus vannamei white shrimp marine shrimp farming penaeid ethology
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000300342
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spelling	oai:scielo:S0718-560X20200003003422020-07-23Zootechnical performance and interaction between Penaeus schmitti Burkenroad, 1936 and Penaeus vannamei Boone, 1931 reared under laboratory conditionsMadrigal,Rafael Fernandez de Alaiza GarciaSilva,Ubiratã de Assis Teixeira daBallester,Eduardo Luis Cupertino Penaeus schmitti Penaeus vannamei white shrimp marine shrimp farming penaeid ethology ABSTRACT To compare the zootechnical performance of the Brazilian native shrimp Penaeus schmitti and the exotic shrimp Penaeus vannamei, juveniles were grown under controlled conditions. Both species were simultaneously cultivated (monoculture) in separate 70 L plastic tanks at two different densities: 30 and 50 ind m-2. Also, in the other two treatments, both species were cultivated together (mixed), with and without feeding, at 30 ind m-2. During the experiment, P. vannamei generally showed a greater interest in food and voracity than P. schmitti. At harvest, for both stocking densities of monoculture treatments, the mean growth rate observed for P. vannamei was 1.0 g week-1, while P. schmitti achieved only 0.1 g week-1. The mean final weight was 10.4 ± 2.0 g; 10.7 ± 2.1 g for P. vannamei and 2.8 ± 0.3 g; 3.2 ± 0.3 g for P. schmitti, for respective densities of 50 and 30 ind m-2. In the mixed treatment with feeding, while P. vannamei reached 11.9 ± 1.4 g, P. schmitti reached only 2.6 ± 0.4 g in the same tank. The observed differences were 3.7 and 3.4 higher in favor of P. vannamei in the monoculture treatment, and up 4.5 times higher in the mixed treatment. Under strict fasting conditions, both species practiced predation/cannibalism among themselves. The results reflected the zootechnical advantages of P. vannamei, but also corroborated the negative effect that high densities and lack of natural food can exert over native species. The potential for P. schmitti cultivation and the possible impact of the escape of P. vannamei into the natural environment is discussed.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.3 20202020-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2020000300342en10.3856/vol48-issue3-fulltext-2354
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Penaeus schmitti Penaeus vannamei white shrimp marine shrimp farming penaeid ethology
spellingShingle	Penaeus schmitti Penaeus vannamei white shrimp marine shrimp farming penaeid ethology Madrigal,Rafael Fernandez de Alaiza Garcia Silva,Ubiratã de Assis Teixeira da Ballester,Eduardo Luis Cupertino Zootechnical performance and interaction between Penaeus schmitti Burkenroad, 1936 and Penaeus vannamei Boone, 1931 reared under laboratory conditions
description	ABSTRACT To compare the zootechnical performance of the Brazilian native shrimp Penaeus schmitti and the exotic shrimp Penaeus vannamei, juveniles were grown under controlled conditions. Both species were simultaneously cultivated (monoculture) in separate 70 L plastic tanks at two different densities: 30 and 50 ind m-2. Also, in the other two treatments, both species were cultivated together (mixed), with and without feeding, at 30 ind m-2. During the experiment, P. vannamei generally showed a greater interest in food and voracity than P. schmitti. At harvest, for both stocking densities of monoculture treatments, the mean growth rate observed for P. vannamei was 1.0 g week-1, while P. schmitti achieved only 0.1 g week-1. The mean final weight was 10.4 ± 2.0 g; 10.7 ± 2.1 g for P. vannamei and 2.8 ± 0.3 g; 3.2 ± 0.3 g for P. schmitti, for respective densities of 50 and 30 ind m-2. In the mixed treatment with feeding, while P. vannamei reached 11.9 ± 1.4 g, P. schmitti reached only 2.6 ± 0.4 g in the same tank. The observed differences were 3.7 and 3.4 higher in favor of P. vannamei in the monoculture treatment, and up 4.5 times higher in the mixed treatment. Under strict fasting conditions, both species practiced predation/cannibalism among themselves. The results reflected the zootechnical advantages of P. vannamei, but also corroborated the negative effect that high densities and lack of natural food can exert over native species. The potential for P. schmitti cultivation and the possible impact of the escape of P. vannamei into the natural environment is discussed.
author	Madrigal,Rafael Fernandez de Alaiza Garcia Silva,Ubiratã de Assis Teixeira da Ballester,Eduardo Luis Cupertino
author_facet	Madrigal,Rafael Fernandez de Alaiza Garcia Silva,Ubiratã de Assis Teixeira da Ballester,Eduardo Luis Cupertino
author_sort	Madrigal,Rafael Fernandez de Alaiza Garcia
title	Zootechnical performance and interaction between Penaeus schmitti Burkenroad, 1936 and Penaeus vannamei Boone, 1931 reared under laboratory conditions
title_short	Zootechnical performance and interaction between Penaeus schmitti Burkenroad, 1936 and Penaeus vannamei Boone, 1931 reared under laboratory conditions
title_full	Zootechnical performance and interaction between Penaeus schmitti Burkenroad, 1936 and Penaeus vannamei Boone, 1931 reared under laboratory conditions
title_fullStr	Zootechnical performance and interaction between Penaeus schmitti Burkenroad, 1936 and Penaeus vannamei Boone, 1931 reared under laboratory conditions
title_full_unstemmed	Zootechnical performance and interaction between Penaeus schmitti Burkenroad, 1936 and Penaeus vannamei Boone, 1931 reared under laboratory conditions
title_sort	zootechnical performance and interaction between penaeus schmitti burkenroad, 1936 and penaeus vannamei boone, 1931 reared under laboratory conditions
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=S0718-560X2020000300342
work_keys_str_mv	AT madrigalrafaelfernandezdealaizagarcia zootechnicalperformanceandinteractionbetweenpenaeusschmittiburkenroad1936andpenaeusvannameiboone1931rearedunderlaboratoryconditions AT silvaubiratadeassisteixeirada zootechnicalperformanceandinteractionbetweenpenaeusschmittiburkenroad1936andpenaeusvannameiboone1931rearedunderlaboratoryconditions AT ballestereduardoluiscupertino zootechnicalperformanceandinteractionbetweenpenaeusschmittiburkenroad1936andpenaeusvannameiboone1931rearedunderlaboratoryconditions
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Zootechnical performance and interaction between Penaeus schmitti Burkenroad, 1936 and Penaeus vannamei Boone, 1931 reared under laboratory conditions

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