Low water hardness and pH affect growth and survival of silver catfish juveniles

Detalhes bibliográficos
Autor(a) principal: Copatti,Carlos Eduardo
Data de Publicação: 2011
Outros Autores: Garcia,Luciano de Oliveira, Kochhann,Daiani, Cunha,Mauro Alves da, Becker,Alexssandro Geferson, Baldisserotto,Bernardo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Ciência Rural
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000800030
Resumo: The objective of this study was to investigate the effects of exposure to low water hardness (0, 25 and 50mg CaCO3L-1) into the 6.0-8.0 pH range to silver catfish juveniles (Rhamdia quelen) survival and growth after 32 days. Juveniles kept at zero water hardness presented higher mortality at pH 7.0 and 8.0 than those submitted to other treatments. Weight of juveniles exposed to pH 6.0 and zero water hardness was significantly higher than those kept at the same water hardness and other pH. Survival and growth of juveniles exposed to 25 and 50mg CaCO3 L-1 was not affected in the 6.0-8.0 pH range. Therefore, the best water hardness for silver catfish juveniles growth is 25-50mg CaCO3 L-1 and at low water hardness (next zero) pH must be reduced.
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spelling Low water hardness and pH affect growth and survival of silver catfish juvenilesacidic wateralkaline watercalciumgrowthmortalityRhamdia quelenThe objective of this study was to investigate the effects of exposure to low water hardness (0, 25 and 50mg CaCO3L-1) into the 6.0-8.0 pH range to silver catfish juveniles (Rhamdia quelen) survival and growth after 32 days. Juveniles kept at zero water hardness presented higher mortality at pH 7.0 and 8.0 than those submitted to other treatments. Weight of juveniles exposed to pH 6.0 and zero water hardness was significantly higher than those kept at the same water hardness and other pH. Survival and growth of juveniles exposed to 25 and 50mg CaCO3 L-1 was not affected in the 6.0-8.0 pH range. Therefore, the best water hardness for silver catfish juveniles growth is 25-50mg CaCO3 L-1 and at low water hardness (next zero) pH must be reduced.Universidade Federal de Santa Maria2011-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000800030Ciência Rural v.41 n.8 2011reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/S0103-84782011005000101info:eu-repo/semantics/openAccessCopatti,Carlos EduardoGarcia,Luciano de OliveiraKochhann,DaianiCunha,Mauro Alves daBecker,Alexssandro GefersonBaldisserotto,Bernardoeng2011-08-18T00:00:00ZRevista
dc.title.none.fl_str_mv Low water hardness and pH affect growth and survival of silver catfish juveniles
title Low water hardness and pH affect growth and survival of silver catfish juveniles
spellingShingle Low water hardness and pH affect growth and survival of silver catfish juveniles
Copatti,Carlos Eduardo
acidic water
alkaline water
calcium
growth
mortality
Rhamdia quelen
title_short Low water hardness and pH affect growth and survival of silver catfish juveniles
title_full Low water hardness and pH affect growth and survival of silver catfish juveniles
title_fullStr Low water hardness and pH affect growth and survival of silver catfish juveniles
title_full_unstemmed Low water hardness and pH affect growth and survival of silver catfish juveniles
title_sort Low water hardness and pH affect growth and survival of silver catfish juveniles
author Copatti,Carlos Eduardo
author_facet Copatti,Carlos Eduardo
Garcia,Luciano de Oliveira
Kochhann,Daiani
Cunha,Mauro Alves da
Becker,Alexssandro Geferson
Baldisserotto,Bernardo
author_role author
author2 Garcia,Luciano de Oliveira
Kochhann,Daiani
Cunha,Mauro Alves da
Becker,Alexssandro Geferson
Baldisserotto,Bernardo
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Copatti,Carlos Eduardo
Garcia,Luciano de Oliveira
Kochhann,Daiani
Cunha,Mauro Alves da
Becker,Alexssandro Geferson
Baldisserotto,Bernardo
dc.subject.por.fl_str_mv acidic water
alkaline water
calcium
growth
mortality
Rhamdia quelen
topic acidic water
alkaline water
calcium
growth
mortality
Rhamdia quelen
description The objective of this study was to investigate the effects of exposure to low water hardness (0, 25 and 50mg CaCO3L-1) into the 6.0-8.0 pH range to silver catfish juveniles (Rhamdia quelen) survival and growth after 32 days. Juveniles kept at zero water hardness presented higher mortality at pH 7.0 and 8.0 than those submitted to other treatments. Weight of juveniles exposed to pH 6.0 and zero water hardness was significantly higher than those kept at the same water hardness and other pH. Survival and growth of juveniles exposed to 25 and 50mg CaCO3 L-1 was not affected in the 6.0-8.0 pH range. Therefore, the best water hardness for silver catfish juveniles growth is 25-50mg CaCO3 L-1 and at low water hardness (next zero) pH must be reduced.
publishDate 2011
dc.date.none.fl_str_mv 2011-08-01
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=S0103-84782011000800030
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000800030
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-84782011005000101
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 Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência Rural v.41 n.8 2011
reponame:Ciência Rural
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Ciência Rural
collection Ciência Rural
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1749140540106997760

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