Net ion fluxes and ammonia excretion during transport of rhamdia quelen juveniles
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/5677 |
Resumo: | The objective of this study was to verify net ion fluxes and ammonia excretion in silver catfish transported in plastic bags at three different loading densities: 221, 286 and 365g L-1 for 5h. A water sample was collected at the beginning and at the end of the transport for analysis of water parameters. There was a significant positive relationship between net ion effluxes and negative relationship between ammonia excretion and loading density, demonstrated by the following equations: Na+: y-24.5-0.27x, r2 =0.99, Cl- : y=40.2-0.61x, r2 =0.98, K+: y=8.0-27.6x, r2 =0.94; ammonia excretion: y=-11.43+0.017x, r2 =0.95, where y: net ion flux (mmol kg-1 h-1) or ammonia excretion (mg kg-1 h-1) and x: loading density (g). Therefore, the increase of loading density increases net ion loss, but reduces ammonia excretion during the transport of silver catfish, indicating the possibility of ammonia accumulation. |
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Net ion fluxes and ammonia excretion during transport of rhamdia quelen juvenilesFluxo de íons e excreção de amônia durante o transporte juvenis de rhamdia quelenFish transportIonoregulationload densityTransporte de peixesIonorregulaçãoDensidade de cargaThe objective of this study was to verify net ion fluxes and ammonia excretion in silver catfish transported in plastic bags at three different loading densities: 221, 286 and 365g L-1 for 5h. A water sample was collected at the beginning and at the end of the transport for analysis of water parameters. There was a significant positive relationship between net ion effluxes and negative relationship between ammonia excretion and loading density, demonstrated by the following equations: Na+: y-24.5-0.27x, r2 =0.99, Cl- : y=40.2-0.61x, r2 =0.98, K+: y=8.0-27.6x, r2 =0.94; ammonia excretion: y=-11.43+0.017x, r2 =0.95, where y: net ion flux (mmol kg-1 h-1) or ammonia excretion (mg kg-1 h-1) and x: loading density (g). Therefore, the increase of loading density increases net ion loss, but reduces ammonia excretion during the transport of silver catfish, indicating the possibility of ammonia accumulation.O objetivo deste estudo foi verificar o fluxo de íons e a excreção de amônia em jundiás transportados em sacos plásticos em três diferentes densidades de carga: 221, 286 e 365g L-1 por 5h. Uma amostra de água foi coletada no início e ao final do transporte para as análises dos parâmetros de qualidade da água. Houve uma relação positiva significativa entre o efluxo de íons e relação negativa entre excreção de amônia e densidade de carga, demonstrada pelas seguintes equações: Na+: y=-24.5-0.27x, r2 =0.99, Cl- : y=40.2-0.61x, r2 =0.98, K+: y=8.0-27.6x, r2 =0.94; excreção de amônia: y= -11.43+0.017x, r2 =0.95, em que y: fluxo de íons (mmol kg-1 h-1) ou excreção de amônia (mg kg-1 h-1) e x: densidade de carga (g). Portanto, o aumento da densidade de carga aumenta a perda de íons, mas reduz a excreção de amônia durante o transporte de jundiá, indicando possibilidade de acúmulo de amônia no corpo.2015-12-18T05:37:48Z2015-12-18T05:37:48Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfGARCIA, Luciano de Oliveira; BARCELLOS, Leonardo José Gil; BALDISSEROTTO, Bernardo. Net ion fluxes and ammonia excretion during transport of rhamdia quelen juveniles. Ciência rural, v. 45, n. 10, p. 1854-1858, 2015. Disponível em: <http://www.scielo.br/pdf/cr/v45n10/1678-4596-cr-0103_8478cr20141420.pdf>. Acesso em: 17 dez. 2015.http://repositorio.furg.br/handle/1/5677engGarcia, Luciano de OliveiraBarcellos, Leonardo José GilBaldisserotto, Bernardoinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2015-12-18T05:37:48Zoai:repositorio.furg.br:1/5677Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2015-12-18T05:37:48Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Net ion fluxes and ammonia excretion during transport of rhamdia quelen juveniles Fluxo de íons e excreção de amônia durante o transporte juvenis de rhamdia quelen |
title |
Net ion fluxes and ammonia excretion during transport of rhamdia quelen juveniles |
spellingShingle |
Net ion fluxes and ammonia excretion during transport of rhamdia quelen juveniles Garcia, Luciano de Oliveira Fish transport Ionoregulation load density Transporte de peixes Ionorregulação Densidade de carga |
title_short |
Net ion fluxes and ammonia excretion during transport of rhamdia quelen juveniles |
title_full |
Net ion fluxes and ammonia excretion during transport of rhamdia quelen juveniles |
title_fullStr |
Net ion fluxes and ammonia excretion during transport of rhamdia quelen juveniles |
title_full_unstemmed |
Net ion fluxes and ammonia excretion during transport of rhamdia quelen juveniles |
title_sort |
Net ion fluxes and ammonia excretion during transport of rhamdia quelen juveniles |
author |
Garcia, Luciano de Oliveira |
author_facet |
Garcia, Luciano de Oliveira Barcellos, Leonardo José Gil Baldisserotto, Bernardo |
author_role |
author |
author2 |
Barcellos, Leonardo José Gil Baldisserotto, Bernardo |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Garcia, Luciano de Oliveira Barcellos, Leonardo José Gil Baldisserotto, Bernardo |
dc.subject.por.fl_str_mv |
Fish transport Ionoregulation load density Transporte de peixes Ionorregulação Densidade de carga |
topic |
Fish transport Ionoregulation load density Transporte de peixes Ionorregulação Densidade de carga |
description |
The objective of this study was to verify net ion fluxes and ammonia excretion in silver catfish transported in plastic bags at three different loading densities: 221, 286 and 365g L-1 for 5h. A water sample was collected at the beginning and at the end of the transport for analysis of water parameters. There was a significant positive relationship between net ion effluxes and negative relationship between ammonia excretion and loading density, demonstrated by the following equations: Na+: y-24.5-0.27x, r2 =0.99, Cl- : y=40.2-0.61x, r2 =0.98, K+: y=8.0-27.6x, r2 =0.94; ammonia excretion: y=-11.43+0.017x, r2 =0.95, where y: net ion flux (mmol kg-1 h-1) or ammonia excretion (mg kg-1 h-1) and x: loading density (g). Therefore, the increase of loading density increases net ion loss, but reduces ammonia excretion during the transport of silver catfish, indicating the possibility of ammonia accumulation. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-18T05:37:48Z 2015-12-18T05:37:48Z 2015 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
GARCIA, Luciano de Oliveira; BARCELLOS, Leonardo José Gil; BALDISSEROTTO, Bernardo. Net ion fluxes and ammonia excretion during transport of rhamdia quelen juveniles. Ciência rural, v. 45, n. 10, p. 1854-1858, 2015. Disponível em: <http://www.scielo.br/pdf/cr/v45n10/1678-4596-cr-0103_8478cr20141420.pdf>. Acesso em: 17 dez. 2015. http://repositorio.furg.br/handle/1/5677 |
identifier_str_mv |
GARCIA, Luciano de Oliveira; BARCELLOS, Leonardo José Gil; BALDISSEROTTO, Bernardo. Net ion fluxes and ammonia excretion during transport of rhamdia quelen juveniles. Ciência rural, v. 45, n. 10, p. 1854-1858, 2015. Disponível em: <http://www.scielo.br/pdf/cr/v45n10/1678-4596-cr-0103_8478cr20141420.pdf>. Acesso em: 17 dez. 2015. |
url |
http://repositorio.furg.br/handle/1/5677 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
|
_version_ |
1807384375237541888 |