Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments

Detalhes bibliográficos
Autor(a) principal: Golombieski,Jaqueline Ineu
Data de Publicação: 2013
Outros Autores: Becker,Alessandra Janaína, Almeida,Caroline Bruzza, Almeida,Ana Paula Gottlieb, Baldisserotto,Bernardo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Neotropical ichthyology (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300661
Resumo: The aim of this study was to determine the preferred pH in silver catfish Rhamdia quelenjuveniles acclimated to different water hardness and the effect of shelters and infection by Ichthyophthirius multifiliis. Fish were acclimated for two weeks at different water hardness levels (4, 24, 50, or 100 mg CaCO3 L-1) and then transferred to a polyethylene tube with a pH gradient ranging from 3.5 to 11.7 and maintaining the same hardness. The position of the fish in the pH gradient was observed at 1, 2, 4, 6, 8, 10, and 12 h after transfer. Acclimation to different water hardness did not change pH preference of uninfected silver catfish (pH 7.30-7.83), and the presence of a shelter at the preferred pH or outside this preferred pH did not change the chosen pH range, either. Consequently silver catfish favored the acid-base regulation over shelter seeking tendency. Juveniles infected with I. multifiliis acclimated to water hardness of 24 mg CaCO3 L-1 preferred alkaline pH (9.08-9.79). This choice is not explained by the higher Na+ levels at alkaline pH compared to neutral pH because infected and uninfected fish choose the same waterborne Na+ levels in a Na+ gradient with the same pH.
id SBI-1_eaf99c6c564c0ccac26545b2c355531d
oai_identifier_str oai:scielo:S1679-62252013000300661
network_acronym_str SBI-1
network_name_str Neotropical ichthyology (Online)
repository_id_str
spelling Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experimentsBehaviorCalciumHardnessIchthyophthirius multifiliisShelterThe aim of this study was to determine the preferred pH in silver catfish Rhamdia quelenjuveniles acclimated to different water hardness and the effect of shelters and infection by Ichthyophthirius multifiliis. Fish were acclimated for two weeks at different water hardness levels (4, 24, 50, or 100 mg CaCO3 L-1) and then transferred to a polyethylene tube with a pH gradient ranging from 3.5 to 11.7 and maintaining the same hardness. The position of the fish in the pH gradient was observed at 1, 2, 4, 6, 8, 10, and 12 h after transfer. Acclimation to different water hardness did not change pH preference of uninfected silver catfish (pH 7.30-7.83), and the presence of a shelter at the preferred pH or outside this preferred pH did not change the chosen pH range, either. Consequently silver catfish favored the acid-base regulation over shelter seeking tendency. Juveniles infected with I. multifiliis acclimated to water hardness of 24 mg CaCO3 L-1 preferred alkaline pH (9.08-9.79). This choice is not explained by the higher Na+ levels at alkaline pH compared to neutral pH because infected and uninfected fish choose the same waterborne Na+ levels in a Na+ gradient with the same pH.Sociedade Brasileira de Ictiologia2013-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300661Neotropical Ichthyology v.11 n.3 2013reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/S1679-62252013000300019info:eu-repo/semantics/openAccessGolombieski,Jaqueline IneuBecker,Alessandra JanaínaAlmeida,Caroline BruzzaAlmeida,Ana Paula GottliebBaldisserotto,Bernardoeng2015-10-09T00:00:00Zoai:scielo:S1679-62252013000300661Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2015-10-09T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false
dc.title.none.fl_str_mv Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments
title Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments
spellingShingle Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments
Golombieski,Jaqueline Ineu
Behavior
Calcium
Hardness
Ichthyophthirius multifiliis
Shelter
title_short Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments
title_full Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments
title_fullStr Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments
title_full_unstemmed Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments
title_sort Preference behavior of silver catfish, Rhamdia quelen, juveniles in waters with pH gradients: laboratory experiments
author Golombieski,Jaqueline Ineu
author_facet Golombieski,Jaqueline Ineu
Becker,Alessandra Janaína
Almeida,Caroline Bruzza
Almeida,Ana Paula Gottlieb
Baldisserotto,Bernardo
author_role author
author2 Becker,Alessandra Janaína
Almeida,Caroline Bruzza
Almeida,Ana Paula Gottlieb
Baldisserotto,Bernardo
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Golombieski,Jaqueline Ineu
Becker,Alessandra Janaína
Almeida,Caroline Bruzza
Almeida,Ana Paula Gottlieb
Baldisserotto,Bernardo
dc.subject.por.fl_str_mv Behavior
Calcium
Hardness
Ichthyophthirius multifiliis
Shelter
topic Behavior
Calcium
Hardness
Ichthyophthirius multifiliis
Shelter
description The aim of this study was to determine the preferred pH in silver catfish Rhamdia quelenjuveniles acclimated to different water hardness and the effect of shelters and infection by Ichthyophthirius multifiliis. Fish were acclimated for two weeks at different water hardness levels (4, 24, 50, or 100 mg CaCO3 L-1) and then transferred to a polyethylene tube with a pH gradient ranging from 3.5 to 11.7 and maintaining the same hardness. The position of the fish in the pH gradient was observed at 1, 2, 4, 6, 8, 10, and 12 h after transfer. Acclimation to different water hardness did not change pH preference of uninfected silver catfish (pH 7.30-7.83), and the presence of a shelter at the preferred pH or outside this preferred pH did not change the chosen pH range, either. Consequently silver catfish favored the acid-base regulation over shelter seeking tendency. Juveniles infected with I. multifiliis acclimated to water hardness of 24 mg CaCO3 L-1 preferred alkaline pH (9.08-9.79). This choice is not explained by the higher Na+ levels at alkaline pH compared to neutral pH because infected and uninfected fish choose the same waterborne Na+ levels in a Na+ gradient with the same pH.
publishDate 2013
dc.date.none.fl_str_mv 2013-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300661
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300661
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1679-62252013000300019
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ictiologia
publisher.none.fl_str_mv Sociedade Brasileira de Ictiologia
dc.source.none.fl_str_mv Neotropical Ichthyology v.11 n.3 2013
reponame:Neotropical ichthyology (Online)
instname:Sociedade Brasileira de Ictiologia (SBI)
instacron:SBI
instname_str Sociedade Brasileira de Ictiologia (SBI)
instacron_str SBI
institution SBI
reponame_str Neotropical ichthyology (Online)
collection Neotropical ichthyology (Online)
repository.name.fl_str_mv Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)
repository.mail.fl_str_mv ||neoichth@nupelia.uem.br
_version_ 1752122180898914304