Selective feeding of food organisms by fish larvae of Piaractus mesopotamicus (Holmberg, 1887) and Prochilodus lineatus (Valenciennes, 1836) - DOI: 10.4025/actascibiolsci.v29i2.523

Detalhes bibliográficos
Autor(a) principal: Marques, Nandeyara Ribeiro
Data de Publicação: 2007
Outros Autores: Hayashi, Carmino, Galdioli, Eliana Maria, Fernandes, Carlos Eduardo Bento
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/523
Resumo: The objective was to evaluate the feeding selection of food organisms for two species of fish larvae (pacu and curimba) at different ages (6, 12, 19 and 26 days after eclosion), in the presence or absence of Pistia stratiotes. Four treatments were used (T1 = pacu + P. stratiotes; T2 = pacu; T3 = curimba + P. stratiotes; T4 = curimba) and four replications. Every seven days, 24 fish larvae of each species were collected, and kept without food for 24 hours. After being distributed in the aquariums with plankton, the larvae stayed for three hours, and were collected and prepared for analysis, along with the water samples. The digestive tract of the fish larvae were removed and analyzed under an optic microscope. Statistic differences in selective feeding of plankton organisms were reported for larvae of the same species, of different age groups and also among larvae of different species of the same age. There were no observed differences as for the presence or absence of P. stratiotes. The fish larvae of pacu and curimba selected similar organisms at six days old, with changes until the 26th day. As they developed, the pacu larvae began to select cladocerans and ostracods, and the curimba selected protozoans and algae.
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spelling Selective feeding of food organisms by fish larvae of Piaractus mesopotamicus (Holmberg, 1887) and Prochilodus lineatus (Valenciennes, 1836) - DOI: 10.4025/actascibiolsci.v29i2.523Seletividade alimentar de organismos-alimento por formas jovens de pacu Piaractus mesopotamicus (Holmberg, 1887) e curimba Prochilodus lineatus (Valenciennes, 1836) - DOI: 10.4025/actascibiolsci.v29i2.523larvas de peixePiaractus mesopotamicusProchilodus lineatusseletividade alimentarplânctonThe objective was to evaluate the feeding selection of food organisms for two species of fish larvae (pacu and curimba) at different ages (6, 12, 19 and 26 days after eclosion), in the presence or absence of Pistia stratiotes. Four treatments were used (T1 = pacu + P. stratiotes; T2 = pacu; T3 = curimba + P. stratiotes; T4 = curimba) and four replications. Every seven days, 24 fish larvae of each species were collected, and kept without food for 24 hours. After being distributed in the aquariums with plankton, the larvae stayed for three hours, and were collected and prepared for analysis, along with the water samples. The digestive tract of the fish larvae were removed and analyzed under an optic microscope. Statistic differences in selective feeding of plankton organisms were reported for larvae of the same species, of different age groups and also among larvae of different species of the same age. There were no observed differences as for the presence or absence of P. stratiotes. The fish larvae of pacu and curimba selected similar organisms at six days old, with changes until the 26th day. As they developed, the pacu larvae began to select cladocerans and ostracods, and the curimba selected protozoans and algae.Objetivou-se avaliar a seleção alimentar de organismos-alimento por formas jovens de pacu (Piaractus mesopotamicus) e curimba (Prochilodus lineatus) com diferentes idades (6, 12, 19 e 26 dias), na presença e ausência de Pistia stratiotes. Foram utilizados quatro tratamentos (T1 = pacu + P. stratiotes; T2 = pacu; T3 = curimba + P. stratiotes; T4 = curimba) e quatro repetições. A cada sete dias, foram coletadas 24 larvas de cada espécie de peixe dos tanques, sendo estas mantidas em jejum por 24 horas. Depois de distribuídas nos aquários com plâncton, as larvas permaneceram por três horas, sendo coletadas e fixadas para análise, juntamente com as amostras de água. Os tratos digestórios das larvas foram retirados e analisados sob microscópio óptico. Observaram-se diferenças estatísticas na seletividade alimentar de organismos planctônicos por larvas de mesma espécie, em diferentes idades e também entre larvas de espécies diferentes, com mesma idade, não diferindo quanto à presença ou ausência de P. stratiotes. As formas jovens de pacu e curimba selecionaram organismos similares aos seis dias de idade, passando por alterações até o 26º dia. À medida que se desenvolveram, as larvas de pacu passaram a selecionar cladóceros e ostrácodos e as de curimba, protozoários e algas.Universidade Estadual De Maringá2007-12-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/52310.4025/actascibiolsci.v29i2.523Acta Scientiarum. Biological Sciences; Vol 29 No 2 (2007); 167-176Acta Scientiarum. Biological Sciences; v. 29 n. 2 (2007); 167-1761807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/523/308Marques, Nandeyara RibeiroHayashi, CarminoGaldioli, Eliana MariaFernandes, Carlos Eduardo Bentoinfo:eu-repo/semantics/openAccess2022-11-23T17:32:58Zoai:periodicos.uem.br/ojs:article/523Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:32:58Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Selective feeding of food organisms by fish larvae of Piaractus mesopotamicus (Holmberg, 1887) and Prochilodus lineatus (Valenciennes, 1836) - DOI: 10.4025/actascibiolsci.v29i2.523
Seletividade alimentar de organismos-alimento por formas jovens de pacu Piaractus mesopotamicus (Holmberg, 1887) e curimba Prochilodus lineatus (Valenciennes, 1836) - DOI: 10.4025/actascibiolsci.v29i2.523
title Selective feeding of food organisms by fish larvae of Piaractus mesopotamicus (Holmberg, 1887) and Prochilodus lineatus (Valenciennes, 1836) - DOI: 10.4025/actascibiolsci.v29i2.523
spellingShingle Selective feeding of food organisms by fish larvae of Piaractus mesopotamicus (Holmberg, 1887) and Prochilodus lineatus (Valenciennes, 1836) - DOI: 10.4025/actascibiolsci.v29i2.523
Marques, Nandeyara Ribeiro
larvas de peixe
Piaractus mesopotamicus
Prochilodus lineatus
seletividade alimentar
plâncton
title_short Selective feeding of food organisms by fish larvae of Piaractus mesopotamicus (Holmberg, 1887) and Prochilodus lineatus (Valenciennes, 1836) - DOI: 10.4025/actascibiolsci.v29i2.523
title_full Selective feeding of food organisms by fish larvae of Piaractus mesopotamicus (Holmberg, 1887) and Prochilodus lineatus (Valenciennes, 1836) - DOI: 10.4025/actascibiolsci.v29i2.523
title_fullStr Selective feeding of food organisms by fish larvae of Piaractus mesopotamicus (Holmberg, 1887) and Prochilodus lineatus (Valenciennes, 1836) - DOI: 10.4025/actascibiolsci.v29i2.523
title_full_unstemmed Selective feeding of food organisms by fish larvae of Piaractus mesopotamicus (Holmberg, 1887) and Prochilodus lineatus (Valenciennes, 1836) - DOI: 10.4025/actascibiolsci.v29i2.523
title_sort Selective feeding of food organisms by fish larvae of Piaractus mesopotamicus (Holmberg, 1887) and Prochilodus lineatus (Valenciennes, 1836) - DOI: 10.4025/actascibiolsci.v29i2.523
author Marques, Nandeyara Ribeiro
author_facet Marques, Nandeyara Ribeiro
Hayashi, Carmino
Galdioli, Eliana Maria
Fernandes, Carlos Eduardo Bento
author_role author
author2 Hayashi, Carmino
Galdioli, Eliana Maria
Fernandes, Carlos Eduardo Bento
author2_role author
author
author
dc.contributor.author.fl_str_mv Marques, Nandeyara Ribeiro
Hayashi, Carmino
Galdioli, Eliana Maria
Fernandes, Carlos Eduardo Bento
dc.subject.por.fl_str_mv larvas de peixe
Piaractus mesopotamicus
Prochilodus lineatus
seletividade alimentar
plâncton
topic larvas de peixe
Piaractus mesopotamicus
Prochilodus lineatus
seletividade alimentar
plâncton
description The objective was to evaluate the feeding selection of food organisms for two species of fish larvae (pacu and curimba) at different ages (6, 12, 19 and 26 days after eclosion), in the presence or absence of Pistia stratiotes. Four treatments were used (T1 = pacu + P. stratiotes; T2 = pacu; T3 = curimba + P. stratiotes; T4 = curimba) and four replications. Every seven days, 24 fish larvae of each species were collected, and kept without food for 24 hours. After being distributed in the aquariums with plankton, the larvae stayed for three hours, and were collected and prepared for analysis, along with the water samples. The digestive tract of the fish larvae were removed and analyzed under an optic microscope. Statistic differences in selective feeding of plankton organisms were reported for larvae of the same species, of different age groups and also among larvae of different species of the same age. There were no observed differences as for the presence or absence of P. stratiotes. The fish larvae of pacu and curimba selected similar organisms at six days old, with changes until the 26th day. As they developed, the pacu larvae began to select cladocerans and ostracods, and the curimba selected protozoans and algae.
publishDate 2007
dc.date.none.fl_str_mv 2007-12-05
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/523
10.4025/actascibiolsci.v29i2.523
url http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/523
identifier_str_mv 10.4025/actascibiolsci.v29i2.523
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/523/308
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 29 No 2 (2007); 167-176
Acta Scientiarum. Biological Sciences; v. 29 n. 2 (2007); 167-176
1807-863X
1679-9283
reponame:Acta Scientiarum Biological Sciences
instname:Universidade Estadual de Maringá (UEM)
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instname_str Universidade Estadual de Maringá (UEM)
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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)
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