Oxygen consumption of Litopenaeus vannamei juveniles in heterotrophic medium with zero water exchange
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/1458 |
Resumo: | This work aimed at determining the dissolved oxygen consumption rate of Litopenaeus vannamei juveniles maintained in a microbial biofloc raceway system at high density with no aeration. Three 4 L bottles were filled for each treatment, sealed hermetically, and placed in an enclosed greenhouse raceway system. Four shrimp (13.2±1.42 g) were assigned to two sets of the bottles, which underwent the following treatments: light conditions with no shrimp; dark conditions with no shrimp; light conditions with shrimp; and dark conditions with shrimp. Dissolved oxygen content was measured every 10 min for 30 min. A quadratic behavior was observed in dissolved oxygen concentration over time. Significant differences for oxigen consumption were observed only at 10 and 20 min between shrimp maintained in the dark and those under light conditions. At 10 min, a higher value was observed in shrimp maintained under light, and at 20 min, in the dark. Significant differences between 10 and 20 min and between 10 and 30 min were observed when oxygen consumption was analyzed over time in the presence of light. Under dark conditions there were significant differences only between 20 and 30 min. Lethal oxygen concentration (0.65 mg L-1) would be reached in less than one hour either under light or dark conditions with no aeration. |
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Oxygen consumption of Litopenaeus vannamei juveniles in heterotrophic medium with zero water exchangeConsumo de oxigênio de juvenis de Litopenaeus vannamei em meio heterotrófico sem renovação de águaLitopenaeus vannamei; high density; microbial biofloc; oxygen consumption; raceway systemLitopenaeus vannamei; alta densidade; biofloc microbiano; consumo de oxigênio; sistema de fluxo contínuoThis work aimed at determining the dissolved oxygen consumption rate of Litopenaeus vannamei juveniles maintained in a microbial biofloc raceway system at high density with no aeration. Three 4 L bottles were filled for each treatment, sealed hermetically, and placed in an enclosed greenhouse raceway system. Four shrimp (13.2±1.42 g) were assigned to two sets of the bottles, which underwent the following treatments: light conditions with no shrimp; dark conditions with no shrimp; light conditions with shrimp; and dark conditions with shrimp. Dissolved oxygen content was measured every 10 min for 30 min. A quadratic behavior was observed in dissolved oxygen concentration over time. Significant differences for oxigen consumption were observed only at 10 and 20 min between shrimp maintained in the dark and those under light conditions. At 10 min, a higher value was observed in shrimp maintained under light, and at 20 min, in the dark. Significant differences between 10 and 20 min and between 10 and 30 min were observed when oxygen consumption was analyzed over time in the presence of light. Under dark conditions there were significant differences only between 20 and 30 min. Lethal oxygen concentration (0.65 mg L-1) would be reached in less than one hour either under light or dark conditions with no aeration.O objetivo deste trabalho foi determinar o consumo de oxigênio dissolvido (OD) de juvenis de Litopenaeus vannamei mantidos em sistema de cultivo de bioflocs bacterianos em alta densidade e ausência de aeração. Três garrafas de 4 L foram preenchidas para cada tratamento, fechadas hermeticamente e colocadas em sistema de cultivo fechado. Quatro camarões (13,2±1,42 g) foram colocados em dois dos conjuntos de garrafas. Os tratamentos aplicados foram: luminosidade, sem camarões; escuro, sem camarões; luminosidade, com camarões; escuro, com camarões. A concentração de oxigênio dissolvido foi determinada a cada 10 min durante 30 min. Foi observado um comportamento quadrático na concentração de OD ao longo do tempo. Diferenças significativas para consumo de oxigênio foram observadas apenas aos 10 e 20 min entre camarões mantidos no escuro e camarões em luminosidade. Aos 10 min, foi observada maior concentração no sistema mantido em luminosidade e, aos 20 min, no sistema mantido no escuro. Na análise do consumo de oxigênio ao longo do tempo e com luminosidade, foram constatadas diferenças significativas entre 10 e 20 min e entre 10 e 30 min. Em condições de escuridão, houve diferença significativa apenas entre 20 e 30 min. Concluiu-se que, sem aeração, a condição anóxica pode ser alcançada em menos de uma hora, tanto ao dia quanto à noite.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCNPq, CAPES, DNRSCVinatea, LuisGalvez, Alfredo OliveiraVenero, JesusLeffler, JohnBrowdy, Craig2010-11-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/1458Pesquisa Agropecuaria Brasileira; v.44, n.5, maio 2009; 534-538Pesquisa Agropecuária Brasileira; v.44, n.5, maio 2009; 534-5381678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/1458/5724https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/1458/1932info:eu-repo/semantics/openAccess2012-06-17T11:49:51Zoai:ojs.seer.sct.embrapa.br:article/1458Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2012-06-17T11:49:51Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Oxygen consumption of Litopenaeus vannamei juveniles in heterotrophic medium with zero water exchange Consumo de oxigênio de juvenis de Litopenaeus vannamei em meio heterotrófico sem renovação de água |
title |
Oxygen consumption of Litopenaeus vannamei juveniles in heterotrophic medium with zero water exchange |
spellingShingle |
Oxygen consumption of Litopenaeus vannamei juveniles in heterotrophic medium with zero water exchange Vinatea, Luis Litopenaeus vannamei; high density; microbial biofloc; oxygen consumption; raceway system Litopenaeus vannamei; alta densidade; biofloc microbiano; consumo de oxigênio; sistema de fluxo contínuo |
title_short |
Oxygen consumption of Litopenaeus vannamei juveniles in heterotrophic medium with zero water exchange |
title_full |
Oxygen consumption of Litopenaeus vannamei juveniles in heterotrophic medium with zero water exchange |
title_fullStr |
Oxygen consumption of Litopenaeus vannamei juveniles in heterotrophic medium with zero water exchange |
title_full_unstemmed |
Oxygen consumption of Litopenaeus vannamei juveniles in heterotrophic medium with zero water exchange |
title_sort |
Oxygen consumption of Litopenaeus vannamei juveniles in heterotrophic medium with zero water exchange |
author |
Vinatea, Luis |
author_facet |
Vinatea, Luis Galvez, Alfredo Oliveira Venero, Jesus Leffler, John Browdy, Craig |
author_role |
author |
author2 |
Galvez, Alfredo Oliveira Venero, Jesus Leffler, John Browdy, Craig |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
CNPq, CAPES, DNRSC |
dc.contributor.author.fl_str_mv |
Vinatea, Luis Galvez, Alfredo Oliveira Venero, Jesus Leffler, John Browdy, Craig |
dc.subject.por.fl_str_mv |
Litopenaeus vannamei; high density; microbial biofloc; oxygen consumption; raceway system Litopenaeus vannamei; alta densidade; biofloc microbiano; consumo de oxigênio; sistema de fluxo contínuo |
topic |
Litopenaeus vannamei; high density; microbial biofloc; oxygen consumption; raceway system Litopenaeus vannamei; alta densidade; biofloc microbiano; consumo de oxigênio; sistema de fluxo contínuo |
description |
This work aimed at determining the dissolved oxygen consumption rate of Litopenaeus vannamei juveniles maintained in a microbial biofloc raceway system at high density with no aeration. Three 4 L bottles were filled for each treatment, sealed hermetically, and placed in an enclosed greenhouse raceway system. Four shrimp (13.2±1.42 g) were assigned to two sets of the bottles, which underwent the following treatments: light conditions with no shrimp; dark conditions with no shrimp; light conditions with shrimp; and dark conditions with shrimp. Dissolved oxygen content was measured every 10 min for 30 min. A quadratic behavior was observed in dissolved oxygen concentration over time. Significant differences for oxigen consumption were observed only at 10 and 20 min between shrimp maintained in the dark and those under light conditions. At 10 min, a higher value was observed in shrimp maintained under light, and at 20 min, in the dark. Significant differences between 10 and 20 min and between 10 and 30 min were observed when oxygen consumption was analyzed over time in the presence of light. Under dark conditions there were significant differences only between 20 and 30 min. Lethal oxygen concentration (0.65 mg L-1) would be reached in less than one hour either under light or dark conditions with no aeration. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-11-18 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/1458 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/1458 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/1458/5724 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/1458/1932 |
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.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.44, n.5, maio 2009; 534-538 Pesquisa Agropecuária Brasileira; v.44, n.5, maio 2009; 534-538 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
_version_ |
1793416675151839232 |