Tolerance of piava juveniles to different ammonia concentrations
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/20355 |
Resumo: | The objective of this study was to evaluate the tolerance of piavas (Leporinus obtusidens) to ammonia (NH3) by measuring its effects on plasma ion levels and tissue metabolic parameters. Piava juveniles (25-30 g) were exposed to five concentrations of NH3 (mg L-1): 0.003 (control), 0.1, 0.4, 0.7, and 1.4; after 96 hours, plasma levels of Na+, K+, Cl- and NH4+ ions and metabolic and enzyme activity in tissues (liver, kidneys, gills and muscle) were measured. The lethal concentration (LC50; 96h) of NH3 was 0.27 mg L-1. As NH3 increased, Na+ and NH4+ in the plasma increased and K+ decreased. In addition, Na+/K+- ATPase activity concomitantly increased in the gills and decreased in the kidneys. Glucose, glycogen, and protein levels decreased, while lactate and ammonia increased in the tissues of piava juveniles that were treated with higher concentrations of ammonia. The observed lethal toxicity could be due to a gradual depletion of plasma ion levels and a reduction of metabolic and Na+/K+-ATPase activity in tissues. Both can lead to dysfunction in ionoregulatory and physiological systems. This finding has implications for the management of fish culture of piavas. |
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Tolerance of piava juveniles to different ammonia concentrationsTolerância de juvenis de piava para diferentes concentrações de amônia na águaIonoregulatoryLethal concentrationNa /K -ATPase.IonoregulaçãoConcentração letalNa K -ATPaseManejo.The objective of this study was to evaluate the tolerance of piavas (Leporinus obtusidens) to ammonia (NH3) by measuring its effects on plasma ion levels and tissue metabolic parameters. Piava juveniles (25-30 g) were exposed to five concentrations of NH3 (mg L-1): 0.003 (control), 0.1, 0.4, 0.7, and 1.4; after 96 hours, plasma levels of Na+, K+, Cl- and NH4+ ions and metabolic and enzyme activity in tissues (liver, kidneys, gills and muscle) were measured. The lethal concentration (LC50; 96h) of NH3 was 0.27 mg L-1. As NH3 increased, Na+ and NH4+ in the plasma increased and K+ decreased. In addition, Na+/K+- ATPase activity concomitantly increased in the gills and decreased in the kidneys. Glucose, glycogen, and protein levels decreased, while lactate and ammonia increased in the tissues of piava juveniles that were treated with higher concentrations of ammonia. The observed lethal toxicity could be due to a gradual depletion of plasma ion levels and a reduction of metabolic and Na+/K+-ATPase activity in tissues. Both can lead to dysfunction in ionoregulatory and physiological systems. This finding has implications for the management of fish culture of piavas. O objetivo deste trabalho foi avaliar a tolerância de piava (Leporinus obtusidens) a diferentes concentrações de amônia da água e os efeitos sobre seus íons plasmáticos e parâmetros metabólicos. Juvenis de piava (25-30 g) foram expostos a diferentes concentrações de amônia da água (mg/L NH3): 0,003 (controle); 0,1; 0,4; 0,7 e 1,4, por 96 horas. Foram analisados níveis de Na+, K+, Cl-e NH4+ no plasma e metabolismo e atividade enzimática nos tecidos (fígado, rim, brânquias e músculo). A concentração letal (LC50; 96h) foi de 0,27 mg/L de NH3, e os níveis plasmáticos de Na+e NH4+aumentaram, enquanto os níveis de K+diminuíram com o aumento das concentrações de NH3 na água. A atividade de Na+/K+-ATPase aumentou nas brânquias e diminuiu nos rins com o aumento das concentrações de NH3 na água. Níveis de glicose, glicogênio e proteína (exceto no músculo) também reduziram, mas níveis de lactato aumentaram nos tecidos dos juvenis expostos as maiores concentrações de NH3 na água. A toxicidade letal observada poderia ser devido a depleção gradual de íons no plasma, a redução do metabolismo e a atividade nos tecidos de Na+/K+-ATPase. O aumento das concentrações de amônia na água leva ao acúmulo de amônia no plasma e nos tecidos, o que reduz o gradiente de difusão plasma-água de NH3 e induz alterações metabólicas e ionoregulatórias nas piavas, o que tem implicações para o manejo de piavas. UEL2015-12-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa de Laboratórioapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2035510.5433/1679-0359.2015v36n6p3991Semina: Ciências Agrárias; Vol. 36 No. 6 (2015); 3991-4002Semina: Ciências Agrárias; v. 36 n. 6 (2015); 3991-40021679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/20355/17504http://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessCopatti, Carlos EduardoBolner, Keide Carolina dos SantosRosso, Felipe Link deLoro, Vania LuciaBaldisserotto, Bernardo2022-12-05T12:04:18Zoai:ojs.pkp.sfu.ca:article/20355Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-12-05T12:04:18Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Tolerance of piava juveniles to different ammonia concentrations Tolerância de juvenis de piava para diferentes concentrações de amônia na água |
title |
Tolerance of piava juveniles to different ammonia concentrations |
spellingShingle |
Tolerance of piava juveniles to different ammonia concentrations Copatti, Carlos Eduardo Ionoregulatory Lethal concentration Na /K -ATPase. Ionoregulação Concentração letal Na K -ATPase Manejo. |
title_short |
Tolerance of piava juveniles to different ammonia concentrations |
title_full |
Tolerance of piava juveniles to different ammonia concentrations |
title_fullStr |
Tolerance of piava juveniles to different ammonia concentrations |
title_full_unstemmed |
Tolerance of piava juveniles to different ammonia concentrations |
title_sort |
Tolerance of piava juveniles to different ammonia concentrations |
author |
Copatti, Carlos Eduardo |
author_facet |
Copatti, Carlos Eduardo Bolner, Keide Carolina dos Santos Rosso, Felipe Link de Loro, Vania Lucia Baldisserotto, Bernardo |
author_role |
author |
author2 |
Bolner, Keide Carolina dos Santos Rosso, Felipe Link de Loro, Vania Lucia Baldisserotto, Bernardo |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Copatti, Carlos Eduardo Bolner, Keide Carolina dos Santos Rosso, Felipe Link de Loro, Vania Lucia Baldisserotto, Bernardo |
dc.subject.por.fl_str_mv |
Ionoregulatory Lethal concentration Na /K -ATPase. Ionoregulação Concentração letal Na K -ATPase Manejo. |
topic |
Ionoregulatory Lethal concentration Na /K -ATPase. Ionoregulação Concentração letal Na K -ATPase Manejo. |
description |
The objective of this study was to evaluate the tolerance of piavas (Leporinus obtusidens) to ammonia (NH3) by measuring its effects on plasma ion levels and tissue metabolic parameters. Piava juveniles (25-30 g) were exposed to five concentrations of NH3 (mg L-1): 0.003 (control), 0.1, 0.4, 0.7, and 1.4; after 96 hours, plasma levels of Na+, K+, Cl- and NH4+ ions and metabolic and enzyme activity in tissues (liver, kidneys, gills and muscle) were measured. The lethal concentration (LC50; 96h) of NH3 was 0.27 mg L-1. As NH3 increased, Na+ and NH4+ in the plasma increased and K+ decreased. In addition, Na+/K+- ATPase activity concomitantly increased in the gills and decreased in the kidneys. Glucose, glycogen, and protein levels decreased, while lactate and ammonia increased in the tissues of piava juveniles that were treated with higher concentrations of ammonia. The observed lethal toxicity could be due to a gradual depletion of plasma ion levels and a reduction of metabolic and Na+/K+-ATPase activity in tissues. Both can lead to dysfunction in ionoregulatory and physiological systems. This finding has implications for the management of fish culture of piavas. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-09 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa de Laboratório |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/20355 10.5433/1679-0359.2015v36n6p3991 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/20355 |
identifier_str_mv |
10.5433/1679-0359.2015v36n6p3991 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/20355/17504 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 36 No. 6 (2015); 3991-4002 Semina: Ciências Agrárias; v. 36 n. 6 (2015); 3991-4002 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306073313640448 |