Development of larvae of Steindachneridion sp. under different conditions of refuge and luminosity
Main Author: | |
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Publication Date: | 2006 |
Other Authors: | , , |
Format: | Article |
Language: | por |
Source: | Pesquisa Agropecuária Brasileira (Online) |
Download full: | https://seer.sct.embrapa.br/index.php/pab/article/view/7115 |
Summary: | The influence of luminosity and of the use of refuges on the initial development of Steindachneridion sp. Garavello (Siluriforme: Pimelodidae) larvae was evaluated. A thousand larvae 18.02 mm high and 62.2 mg weight were used in an entirely randomized design, with five treatments and four replicates, in 35 L-aquarium during 22 days. The treatments consisted on the following environments: darkness without refuges, clear with artificial refuge, darkness with artificial refuge, clear with natural refuge and clear without refuge. All larvae received the same feeding during the experiment. The best survival rates were found for darkness without refuges, clear with artificial refuge and clear without refuge, with 84, 76 and 70%, respectively. The best development was in darkness and without refuges. The treatment darkness with artificial refuge provided significant differences in relation to the other treatments as far as survival and weight are concerned, showing high heterogeneity for weight. Environment without refuges are the most appropriate for the larval development of this specie. |
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Development of larvae of Steindachneridion sp. under different conditions of refuge and luminosityDesenvolvimento de larvas de Steindachneridion sp. em diferentes condições de refúgio e luminosidadelarval behaviour; larviculturecomportamento larval; larviculturaThe influence of luminosity and of the use of refuges on the initial development of Steindachneridion sp. Garavello (Siluriforme: Pimelodidae) larvae was evaluated. A thousand larvae 18.02 mm high and 62.2 mg weight were used in an entirely randomized design, with five treatments and four replicates, in 35 L-aquarium during 22 days. The treatments consisted on the following environments: darkness without refuges, clear with artificial refuge, darkness with artificial refuge, clear with natural refuge and clear without refuge. All larvae received the same feeding during the experiment. The best survival rates were found for darkness without refuges, clear with artificial refuge and clear without refuge, with 84, 76 and 70%, respectively. The best development was in darkness and without refuges. The treatment darkness with artificial refuge provided significant differences in relation to the other treatments as far as survival and weight are concerned, showing high heterogeneity for weight. Environment without refuges are the most appropriate for the larval development of this specie.Avaliou-se a influência da luminosidade e do uso de refúgios no desenvolvimento inicial de larvas de surubim do Iguaçu (Steindachneridion sp. Garavello) (Siluriforme: Pimelodidae). Utilizaram-se 1.000 larvas com peso e comprimento inicial de 62,2 mg e 18,02 mm, respectivamente, distribuídas em 20 aquários de 35 L, durante 22 dias. Os tratamentos consistiram dos ambientes: escuro sem refúgio, claro com refúgio artificial, escuro com refúgio artificial, claro com refúgio natural e claro sem refúgio, com quatro repetições cada, distribuídos em delineamento inteiramente casualizado. As larvas receberam a mesma alimentação em todos os tratamentos. As melhores taxas de sobrevivência foram verificadas nos ambientes: escuro sem refúgio, claro com refúgio natural e claro sem refúgio, com 84, 76 e 70%, respectivamente. O melhor desenvolvimento das larvas ocorreu em ambiente escuro e sem refúgio. O tratamento escuro com refúgio artificial apresentou diferenças significativas em relação à sobrevivência e ao peso final dos outros tratamentos, com grande heterogeneidade quanto ao peso. Ambientes escuros e sem refúgios são os mais adequados para o desenvolvimento inicial de larvas de surubim do Iguaçu.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFeiden, AldiHayashi, CarminoBoscolo, Wilson RogérioReidel, Adilson2006-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7115Pesquisa Agropecuaria Brasileira; v.41, n.1, jan. 2006; 133-137Pesquisa Agropecuária Brasileira; v.41, n.1, jan. 2006; 133-1371678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7115/4160info:eu-repo/semantics/openAccess2010-12-27T17:25:31Zoai:ojs.seer.sct.embrapa.br:article/7115Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-12-27T17:25:31Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Development of larvae of Steindachneridion sp. under different conditions of refuge and luminosity Desenvolvimento de larvas de Steindachneridion sp. em diferentes condições de refúgio e luminosidade |
title |
Development of larvae of Steindachneridion sp. under different conditions of refuge and luminosity |
spellingShingle |
Development of larvae of Steindachneridion sp. under different conditions of refuge and luminosity Feiden, Aldi larval behaviour; larviculture comportamento larval; larvicultura |
title_short |
Development of larvae of Steindachneridion sp. under different conditions of refuge and luminosity |
title_full |
Development of larvae of Steindachneridion sp. under different conditions of refuge and luminosity |
title_fullStr |
Development of larvae of Steindachneridion sp. under different conditions of refuge and luminosity |
title_full_unstemmed |
Development of larvae of Steindachneridion sp. under different conditions of refuge and luminosity |
title_sort |
Development of larvae of Steindachneridion sp. under different conditions of refuge and luminosity |
author |
Feiden, Aldi |
author_facet |
Feiden, Aldi Hayashi, Carmino Boscolo, Wilson Rogério Reidel, Adilson |
author_role |
author |
author2 |
Hayashi, Carmino Boscolo, Wilson Rogério Reidel, Adilson |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Feiden, Aldi Hayashi, Carmino Boscolo, Wilson Rogério Reidel, Adilson |
dc.subject.por.fl_str_mv |
larval behaviour; larviculture comportamento larval; larvicultura |
topic |
larval behaviour; larviculture comportamento larval; larvicultura |
description |
The influence of luminosity and of the use of refuges on the initial development of Steindachneridion sp. Garavello (Siluriforme: Pimelodidae) larvae was evaluated. A thousand larvae 18.02 mm high and 62.2 mg weight were used in an entirely randomized design, with five treatments and four replicates, in 35 L-aquarium during 22 days. The treatments consisted on the following environments: darkness without refuges, clear with artificial refuge, darkness with artificial refuge, clear with natural refuge and clear without refuge. All larvae received the same feeding during the experiment. The best survival rates were found for darkness without refuges, clear with artificial refuge and clear without refuge, with 84, 76 and 70%, respectively. The best development was in darkness and without refuges. The treatment darkness with artificial refuge provided significant differences in relation to the other treatments as far as survival and weight are concerned, showing high heterogeneity for weight. Environment without refuges are the most appropriate for the larval development of this specie. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-01-01 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/7115 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/7115 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/7115/4160 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.41, n.1, jan. 2006; 133-137 Pesquisa Agropecuária Brasileira; v.41, n.1, jan. 2006; 133-137 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416693916106752 |