The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensis

Detalhes bibliográficos
Autor(a) principal: Tsuzuki,M.Y.
Data de Publicação: 2007
Outros Autores: Ogawa,K., Strüssmann,C.A., Maita,M., Takashima,F., Melo,C.M.R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Arquivo brasileiro de medicina veterinária e zootecnia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000500030
Resumo: The role of cortisol on the osmoregulation of pejerrey Odontesthes bonariensis at different salinities was investigated in adult fish injected with 0.7mg hydrocortisone per 100g body weight of fish, and transferred to 0, 5 and 20ppt of NaCl. Blood cortisol was 566ng/ml at the beginning of the experiment (0h) but surged to 1250ng/ml within 3h in cortisol-injected fish. Cortisol levels were influenced not only by treatment but also by time, being higher at 3h compared to 24h. Salinity level, time of exposure and their interaction, but not cortisol treatment, significantly affected plasma osmolality and the concentration of ions Cl- and Na+. This study showed that exogenous cortisol does not seem to play a significant role on the regulation of plasma osmolality and concentration of individual ions in pejerrey.
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spelling The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensispejerreyOdontesthes bonariensiscortisolosmoregulationsalinityThe role of cortisol on the osmoregulation of pejerrey Odontesthes bonariensis at different salinities was investigated in adult fish injected with 0.7mg hydrocortisone per 100g body weight of fish, and transferred to 0, 5 and 20ppt of NaCl. Blood cortisol was 566ng/ml at the beginning of the experiment (0h) but surged to 1250ng/ml within 3h in cortisol-injected fish. Cortisol levels were influenced not only by treatment but also by time, being higher at 3h compared to 24h. Salinity level, time of exposure and their interaction, but not cortisol treatment, significantly affected plasma osmolality and the concentration of ions Cl- and Na+. This study showed that exogenous cortisol does not seem to play a significant role on the regulation of plasma osmolality and concentration of individual ions in pejerrey.Universidade Federal de Minas Gerais, Escola de Veterinária2007-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000500030Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.59 n.5 2007reponame:Arquivo brasileiro de medicina veterinária e zootecnia (Online)instname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMG10.1590/S0102-09352007000500030info:eu-repo/semantics/openAccessTsuzuki,M.Y.Ogawa,K.Strüssmann,C.A.Maita,M.Takashima,F.Melo,C.M.R.eng2008-01-02T00:00:00Zoai:scielo:S0102-09352007000500030Revistahttps://www.scielo.br/j/abmvz/PUBhttps://old.scielo.br/oai/scielo-oai.phpjournal@vet.ufmg.br||abmvz.artigo@abmvz.org.br1678-41620102-0935opendoar:2008-01-02T00:00Arquivo brasileiro de medicina veterinária e zootecnia (Online) - Universidade Federal de Minas Gerais (UFMG)false
dc.title.none.fl_str_mv The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensis
title The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensis
spellingShingle The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensis
Tsuzuki,M.Y.
pejerrey
Odontesthes bonariensis
cortisol
osmoregulation
salinity
title_short The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensis
title_full The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensis
title_fullStr The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensis
title_full_unstemmed The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensis
title_sort The significance of cortisol on acclimation to salinity in pejerrey Odontesthes bonariensis
author Tsuzuki,M.Y.
author_facet Tsuzuki,M.Y.
Ogawa,K.
Strüssmann,C.A.
Maita,M.
Takashima,F.
Melo,C.M.R.
author_role author
author2 Ogawa,K.
Strüssmann,C.A.
Maita,M.
Takashima,F.
Melo,C.M.R.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Tsuzuki,M.Y.
Ogawa,K.
Strüssmann,C.A.
Maita,M.
Takashima,F.
Melo,C.M.R.
dc.subject.por.fl_str_mv pejerrey
Odontesthes bonariensis
cortisol
osmoregulation
salinity
topic pejerrey
Odontesthes bonariensis
cortisol
osmoregulation
salinity
description The role of cortisol on the osmoregulation of pejerrey Odontesthes bonariensis at different salinities was investigated in adult fish injected with 0.7mg hydrocortisone per 100g body weight of fish, and transferred to 0, 5 and 20ppt of NaCl. Blood cortisol was 566ng/ml at the beginning of the experiment (0h) but surged to 1250ng/ml within 3h in cortisol-injected fish. Cortisol levels were influenced not only by treatment but also by time, being higher at 3h compared to 24h. Salinity level, time of exposure and their interaction, but not cortisol treatment, significantly affected plasma osmolality and the concentration of ions Cl- and Na+. This study showed that exogenous cortisol does not seem to play a significant role on the regulation of plasma osmolality and concentration of individual ions in pejerrey.
publishDate 2007
dc.date.none.fl_str_mv 2007-10-01
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=S0102-09352007000500030
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000500030
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0102-09352007000500030
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 Universidade Federal de Minas Gerais, Escola de Veterinária
publisher.none.fl_str_mv Universidade Federal de Minas Gerais, Escola de Veterinária
dc.source.none.fl_str_mv Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.59 n.5 2007
reponame:Arquivo brasileiro de medicina veterinária e zootecnia (Online)
instname:Universidade Federal de Minas Gerais (UFMG)
instacron:UFMG
instname_str Universidade Federal de Minas Gerais (UFMG)
instacron_str UFMG
institution UFMG
reponame_str Arquivo brasileiro de medicina veterinária e zootecnia (Online)
collection Arquivo brasileiro de medicina veterinária e zootecnia (Online)
repository.name.fl_str_mv Arquivo brasileiro de medicina veterinária e zootecnia (Online) - Universidade Federal de Minas Gerais (UFMG)
repository.mail.fl_str_mv journal@vet.ufmg.br||abmvz.artigo@abmvz.org.br
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