Cannibalism among larvae of Pseudoplatystoma corruscans bred under different stockage densities - DOI: 10.4025/actascibiolsci.v26i3.1543
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum Biological Sciences |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1543 |
Resumo: | The development, survival and cannibalism among larvae of the pintado, Pseudoplatystoma corruscans (Pimelodidae) are verified. Larvae were confined at different stockage densities in lab conditions. The experiment was developed at the Aquaculture Lab of the State University of Maringá, during 72 hours, with 500 larvae aged 96 hours, initial weight 2.2 ± 0.3mg. Larvae were distributed in an entirely randomized design with four treatments and five repetitions, in 700mL-containers, at densities varied 14, 28, 42 and 56 larvae per L. Natural mortality, mortality by intraspecies predation and final weight were the variables analyzed. After finished, density increase affected negatively the larvae’s development. It also caused a linear increase in mortality rates and in cannibalism among the animals. Increase in concentration of pintado larvae was proportional to decrease in performance and in survival rate |
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Cannibalism among larvae of Pseudoplatystoma corruscans bred under different stockage densities - DOI: 10.4025/actascibiolsci.v26i3.1543Canibalismo entre larvas de pintado, Pseudoplatystoma corruscans, cultivadas sob diferentes densidades de estocagem - DOI: 10.4025/actascibiolsci.v26i3.1543comportamentolarviculturapredação intra-específicasobrevivência2.01.00.00-0 Biologia GeralThe development, survival and cannibalism among larvae of the pintado, Pseudoplatystoma corruscans (Pimelodidae) are verified. Larvae were confined at different stockage densities in lab conditions. The experiment was developed at the Aquaculture Lab of the State University of Maringá, during 72 hours, with 500 larvae aged 96 hours, initial weight 2.2 ± 0.3mg. Larvae were distributed in an entirely randomized design with four treatments and five repetitions, in 700mL-containers, at densities varied 14, 28, 42 and 56 larvae per L. Natural mortality, mortality by intraspecies predation and final weight were the variables analyzed. After finished, density increase affected negatively the larvae’s development. It also caused a linear increase in mortality rates and in cannibalism among the animals. Increase in concentration of pintado larvae was proportional to decrease in performance and in survival rateCom o objetivo de verificar o desenvolvimento, sobrevivência e canibalismo entre larvas de pintado, Pseudoplatystoma corruscans (Pimelodidae) confinadas sob diferentes densidades de estocagem em condições de laboratório, foi desenvolvido um experimento no Laboratório de Aqüicultura da Universidade Estadual de Maringá, perfazendo um período de 72 horas, onde foram utilizadas 500 larvas com 96 horas de vida e peso inicial de 2,2 ± 0,3mg. Estas foram distribuídas em um delineamento inteiramente casualizado com quatro tratamentos e cinco repetições, em recipientes de 700mL, cujas densidades variaram de 14, 28, 42 e 56 larvas/L. As variáveis analisadas foram mortalidade natural, mortalidade por predação intra-específica e peso final. Ao final, verificou-se que o aumento da densidade afetou de forma negativa o desenvolvimento e provocou um aumento linear nas taxas de mortalidade e canibalismo entre os animais. Concluiu-se que, à medida que se aumenta a concentração de larvas de pintado, ocorre redução não apenas no desempenho, mas também na taxa de sobrevivênciaUniversidade Estadual De Maringá2008-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/154310.4025/actascibiolsci.v26i3.1543Acta Scientiarum. Biological Sciences; Vol 26 No 3 (2004); 299-302Acta Scientiarum. Biological Sciences; v. 26 n. 3 (2004); 299-3021807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1543/964Andrade, Luciana Segura deHayashi, CarminoSouza, Sandra Regina deSoares, Claudemir Martinsinfo:eu-repo/semantics/openAccess2022-11-23T17:33:12Zoai:periodicos.uem.br/ojs:article/1543Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:12Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Cannibalism among larvae of Pseudoplatystoma corruscans bred under different stockage densities - DOI: 10.4025/actascibiolsci.v26i3.1543 Canibalismo entre larvas de pintado, Pseudoplatystoma corruscans, cultivadas sob diferentes densidades de estocagem - DOI: 10.4025/actascibiolsci.v26i3.1543 |
title |
Cannibalism among larvae of Pseudoplatystoma corruscans bred under different stockage densities - DOI: 10.4025/actascibiolsci.v26i3.1543 |
spellingShingle |
Cannibalism among larvae of Pseudoplatystoma corruscans bred under different stockage densities - DOI: 10.4025/actascibiolsci.v26i3.1543 Andrade, Luciana Segura de comportamento larvicultura predação intra-específica sobrevivência 2.01.00.00-0 Biologia Geral |
title_short |
Cannibalism among larvae of Pseudoplatystoma corruscans bred under different stockage densities - DOI: 10.4025/actascibiolsci.v26i3.1543 |
title_full |
Cannibalism among larvae of Pseudoplatystoma corruscans bred under different stockage densities - DOI: 10.4025/actascibiolsci.v26i3.1543 |
title_fullStr |
Cannibalism among larvae of Pseudoplatystoma corruscans bred under different stockage densities - DOI: 10.4025/actascibiolsci.v26i3.1543 |
title_full_unstemmed |
Cannibalism among larvae of Pseudoplatystoma corruscans bred under different stockage densities - DOI: 10.4025/actascibiolsci.v26i3.1543 |
title_sort |
Cannibalism among larvae of Pseudoplatystoma corruscans bred under different stockage densities - DOI: 10.4025/actascibiolsci.v26i3.1543 |
author |
Andrade, Luciana Segura de |
author_facet |
Andrade, Luciana Segura de Hayashi, Carmino Souza, Sandra Regina de Soares, Claudemir Martins |
author_role |
author |
author2 |
Hayashi, Carmino Souza, Sandra Regina de Soares, Claudemir Martins |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Andrade, Luciana Segura de Hayashi, Carmino Souza, Sandra Regina de Soares, Claudemir Martins |
dc.subject.por.fl_str_mv |
comportamento larvicultura predação intra-específica sobrevivência 2.01.00.00-0 Biologia Geral |
topic |
comportamento larvicultura predação intra-específica sobrevivência 2.01.00.00-0 Biologia Geral |
description |
The development, survival and cannibalism among larvae of the pintado, Pseudoplatystoma corruscans (Pimelodidae) are verified. Larvae were confined at different stockage densities in lab conditions. The experiment was developed at the Aquaculture Lab of the State University of Maringá, during 72 hours, with 500 larvae aged 96 hours, initial weight 2.2 ± 0.3mg. Larvae were distributed in an entirely randomized design with four treatments and five repetitions, in 700mL-containers, at densities varied 14, 28, 42 and 56 larvae per L. Natural mortality, mortality by intraspecies predation and final weight were the variables analyzed. After finished, density increase affected negatively the larvae’s development. It also caused a linear increase in mortality rates and in cannibalism among the animals. Increase in concentration of pintado larvae was proportional to decrease in performance and in survival rate |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-04-01 |
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 |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1543 10.4025/actascibiolsci.v26i3.1543 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1543 |
identifier_str_mv |
10.4025/actascibiolsci.v26i3.1543 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1543/964 |
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 |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Biological Sciences; Vol 26 No 3 (2004); 299-302 Acta Scientiarum. Biological Sciences; v. 26 n. 3 (2004); 299-302 1807-863X 1679-9283 reponame:Acta Scientiarum Biological Sciences instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum Biological Sciences |
collection |
Acta Scientiarum Biological Sciences |
repository.name.fl_str_mv |
Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actabiol@uem.br |
_version_ |
1799317392472408064 |