Efeito da densidade populacional sobre as curvas de crescimento de Macrobrachium rosenbergii (De Man) em cultivo semi-intensivo (Crustacea, Palaemonidae)
Autor(a) principal: | |
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Data de Publicação: | 1993 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S0101-81751993000300009 http://hdl.handle.net/11449/28313 |
Resumo: | In this article the length growth curves of Macrobrachium rosenbergii (De Man, 1879) held in different population densities were analysed. Postlarvae prawns were stocked into five 0,02 ha earthen ponds at densities of 4, 8, 12, 16 and 20 ind./m² during six months. Forthnightly, the mean total length of animals from each pond were obtained by means of random samples. For each population the length growth curves and the instantaneous growth rate expressions were determined. The growth rate and the asymptotic maximum length decreased with the stocking density raised. This effect is greater when the density ranges in low levels. The growth decrease can be due to intraspecific competition for life resources and to negative interactions between individuals, as aggressive or social behavior, that increase with the increase prawns density. |
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Efeito da densidade populacional sobre as curvas de crescimento de Macrobrachium rosenbergii (De Man) em cultivo semi-intensivo (Crustacea, Palaemonidae)The effect of stocking density on Macrobrachium rosenbergii (De Man) growth curves in earthen ponds (Crustacea, Palaemonidae)CrustaceaPalaemonidaeMacrobrachium rosenbergiiecologyIn this article the length growth curves of Macrobrachium rosenbergii (De Man, 1879) held in different population densities were analysed. Postlarvae prawns were stocked into five 0,02 ha earthen ponds at densities of 4, 8, 12, 16 and 20 ind./m² during six months. Forthnightly, the mean total length of animals from each pond were obtained by means of random samples. For each population the length growth curves and the instantaneous growth rate expressions were determined. The growth rate and the asymptotic maximum length decreased with the stocking density raised. This effect is greater when the density ranges in low levels. The growth decrease can be due to intraspecific competition for life resources and to negative interactions between individuals, as aggressive or social behavior, that increase with the increase prawns density.Universidade Estadual Paulista Departamento de Biologia AplicadaUniversidade de São Paulo Instituto de BiociênciasUniversidade Estadual Paulista Departamento de Biologia AplicadaSociedade Brasileira de ZoologiaUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Valenti, Wagner Cotroni [UNESP]Mello, Jeanette de Toledo Cardoso deCastagnolli, Newton [UNESP]2014-05-20T15:12:12Z2014-05-20T15:12:12Z1993-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article427-438application/pdfhttp://dx.doi.org/10.1590/S0101-81751993000300009Revista Brasileira de Zoologia. Sociedade Brasileira de Zoologia, v. 10, n. 3, p. 427-438, 1993.0101-8175http://hdl.handle.net/11449/2831310.1590/S0101-81751993000300009S0101-81751993000300009S0101-81751993000300009.pdf0588804414769477SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Zoologiainfo:eu-repo/semantics/openAccess2023-12-02T06:12:20Zoai:repositorio.unesp.br:11449/28313Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-02T06:12:20Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Efeito da densidade populacional sobre as curvas de crescimento de Macrobrachium rosenbergii (De Man) em cultivo semi-intensivo (Crustacea, Palaemonidae) The effect of stocking density on Macrobrachium rosenbergii (De Man) growth curves in earthen ponds (Crustacea, Palaemonidae) |
title |
Efeito da densidade populacional sobre as curvas de crescimento de Macrobrachium rosenbergii (De Man) em cultivo semi-intensivo (Crustacea, Palaemonidae) |
spellingShingle |
Efeito da densidade populacional sobre as curvas de crescimento de Macrobrachium rosenbergii (De Man) em cultivo semi-intensivo (Crustacea, Palaemonidae) Valenti, Wagner Cotroni [UNESP] Crustacea Palaemonidae Macrobrachium rosenbergii ecology |
title_short |
Efeito da densidade populacional sobre as curvas de crescimento de Macrobrachium rosenbergii (De Man) em cultivo semi-intensivo (Crustacea, Palaemonidae) |
title_full |
Efeito da densidade populacional sobre as curvas de crescimento de Macrobrachium rosenbergii (De Man) em cultivo semi-intensivo (Crustacea, Palaemonidae) |
title_fullStr |
Efeito da densidade populacional sobre as curvas de crescimento de Macrobrachium rosenbergii (De Man) em cultivo semi-intensivo (Crustacea, Palaemonidae) |
title_full_unstemmed |
Efeito da densidade populacional sobre as curvas de crescimento de Macrobrachium rosenbergii (De Man) em cultivo semi-intensivo (Crustacea, Palaemonidae) |
title_sort |
Efeito da densidade populacional sobre as curvas de crescimento de Macrobrachium rosenbergii (De Man) em cultivo semi-intensivo (Crustacea, Palaemonidae) |
author |
Valenti, Wagner Cotroni [UNESP] |
author_facet |
Valenti, Wagner Cotroni [UNESP] Mello, Jeanette de Toledo Cardoso de Castagnolli, Newton [UNESP] |
author_role |
author |
author2 |
Mello, Jeanette de Toledo Cardoso de Castagnolli, Newton [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Valenti, Wagner Cotroni [UNESP] Mello, Jeanette de Toledo Cardoso de Castagnolli, Newton [UNESP] |
dc.subject.por.fl_str_mv |
Crustacea Palaemonidae Macrobrachium rosenbergii ecology |
topic |
Crustacea Palaemonidae Macrobrachium rosenbergii ecology |
description |
In this article the length growth curves of Macrobrachium rosenbergii (De Man, 1879) held in different population densities were analysed. Postlarvae prawns were stocked into five 0,02 ha earthen ponds at densities of 4, 8, 12, 16 and 20 ind./m² during six months. Forthnightly, the mean total length of animals from each pond were obtained by means of random samples. For each population the length growth curves and the instantaneous growth rate expressions were determined. The growth rate and the asymptotic maximum length decreased with the stocking density raised. This effect is greater when the density ranges in low levels. The growth decrease can be due to intraspecific competition for life resources and to negative interactions between individuals, as aggressive or social behavior, that increase with the increase prawns density. |
publishDate |
1993 |
dc.date.none.fl_str_mv |
1993-01-01 2014-05-20T15:12:12Z 2014-05-20T15:12:12Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S0101-81751993000300009 Revista Brasileira de Zoologia. Sociedade Brasileira de Zoologia, v. 10, n. 3, p. 427-438, 1993. 0101-8175 http://hdl.handle.net/11449/28313 10.1590/S0101-81751993000300009 S0101-81751993000300009 S0101-81751993000300009.pdf 0588804414769477 |
url |
http://dx.doi.org/10.1590/S0101-81751993000300009 http://hdl.handle.net/11449/28313 |
identifier_str_mv |
Revista Brasileira de Zoologia. Sociedade Brasileira de Zoologia, v. 10, n. 3, p. 427-438, 1993. 0101-8175 10.1590/S0101-81751993000300009 S0101-81751993000300009 S0101-81751993000300009.pdf 0588804414769477 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Brasileira de Zoologia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
427-438 application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Zoologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Zoologia |
dc.source.none.fl_str_mv |
SciELO reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1797789878655647744 |