Addition of sodium nitrite and biofilm in a Litopenaeus vannamei biofloc culture system

This study evaluates the effects of the previous addition of sodium nitrite (NaNO2) and biofilm in a Litopenaeus vannamei biofloc culture. Five treatments were tested in 180 L - tanks: NaNO2 (-20) addition of NaNO2 for 20 days before stocking and without artificial substrates; NaNO2+B (-20) addition...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Lara,Gabriele, Furtado,Plínio S, Hostins,Bárbara, Poersch,Luís, Wasielesky Jr,Wilson
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2016
Materias:	Litopenaeus vannamei shrimp biofloc nitrogen artificial substrates
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000400011
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-560X2016000400011
record_format	dspace
spelling	oai:scielo:S0718-560X20160004000112016-10-28Addition of sodium nitrite and biofilm in a Litopenaeus vannamei biofloc culture systemLara,GabrieleFurtado,Plínio SHostins,BárbaraPoersch,LuísWasielesky Jr,Wilson Litopenaeus vannamei shrimp biofloc nitrogen artificial substrates This study evaluates the effects of the previous addition of sodium nitrite (NaNO2) and biofilm in a Litopenaeus vannamei biofloc culture. Five treatments were tested in 180 L - tanks: NaNO2 (-20) addition of NaNO2 for 20 days before stocking and without artificial substrates; NaNO2+B (-20) addition of NaNO2 for 20 days before stocking, with 150% additional artificial substrates; NaNO2 (Stocking) addition of NaNO2 at stocking and no artificial substrates; NaNO2 +B (Stocking) addition of NaNO2 at stocking, with 150% additional artificial substrates and; Control, without NaNO2 addition and without artificial substrates. The study was carried out in two phases: shrimps (0.21 ± 0.08 g) were stocked at a density of 400 ind m-2/1,100 ind m-3, for 30 days (nursery). After this period, the animals were restocked at a lower density (120 ind m-2/400 ind m-3) for 18 more days (grow-out). The turbidity and seattleable solids were higher in treatments without artificial substrates, independently of the addition of NaNO2. The ammonia and nitrite were lower in control, and the nitrate concentrations were higher in treatments with addition of NaNO2 without biofilm. At the end of the nursery, the survival was lower in treatment NaNO2 (-20), and at the end of grow-out the final biomasses were higher in treatments with addition of NaNO2 at the stocking day. In conclusion, the use of a dose of NaNO2 at the stocking day could increase the nitrite-oxidizing bacteria, and the biofilm may contribute to the reduction in suspended particles in water, enhancing shrimp production in biofloc technology system.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.44 n.4 20162016-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000400011en10.3856/vol44-issue4-fulltext-11
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Litopenaeus vannamei shrimp biofloc nitrogen artificial substrates
spellingShingle	Litopenaeus vannamei shrimp biofloc nitrogen artificial substrates Lara,Gabriele Furtado,Plínio S Hostins,Bárbara Poersch,Luís Wasielesky Jr,Wilson Addition of sodium nitrite and biofilm in a Litopenaeus vannamei biofloc culture system
description	This study evaluates the effects of the previous addition of sodium nitrite (NaNO2) and biofilm in a Litopenaeus vannamei biofloc culture. Five treatments were tested in 180 L - tanks: NaNO2 (-20) addition of NaNO2 for 20 days before stocking and without artificial substrates; NaNO2+B (-20) addition of NaNO2 for 20 days before stocking, with 150% additional artificial substrates; NaNO2 (Stocking) addition of NaNO2 at stocking and no artificial substrates; NaNO2 +B (Stocking) addition of NaNO2 at stocking, with 150% additional artificial substrates and; Control, without NaNO2 addition and without artificial substrates. The study was carried out in two phases: shrimps (0.21 ± 0.08 g) were stocked at a density of 400 ind m-2/1,100 ind m-3, for 30 days (nursery). After this period, the animals were restocked at a lower density (120 ind m-2/400 ind m-3) for 18 more days (grow-out). The turbidity and seattleable solids were higher in treatments without artificial substrates, independently of the addition of NaNO2. The ammonia and nitrite were lower in control, and the nitrate concentrations were higher in treatments with addition of NaNO2 without biofilm. At the end of the nursery, the survival was lower in treatment NaNO2 (-20), and at the end of grow-out the final biomasses were higher in treatments with addition of NaNO2 at the stocking day. In conclusion, the use of a dose of NaNO2 at the stocking day could increase the nitrite-oxidizing bacteria, and the biofilm may contribute to the reduction in suspended particles in water, enhancing shrimp production in biofloc technology system.
author	Lara,Gabriele Furtado,Plínio S Hostins,Bárbara Poersch,Luís Wasielesky Jr,Wilson
author_facet	Lara,Gabriele Furtado,Plínio S Hostins,Bárbara Poersch,Luís Wasielesky Jr,Wilson
author_sort	Lara,Gabriele
title	Addition of sodium nitrite and biofilm in a Litopenaeus vannamei biofloc culture system
title_short	Addition of sodium nitrite and biofilm in a Litopenaeus vannamei biofloc culture system
title_full	Addition of sodium nitrite and biofilm in a Litopenaeus vannamei biofloc culture system
title_fullStr	Addition of sodium nitrite and biofilm in a Litopenaeus vannamei biofloc culture system
title_full_unstemmed	Addition of sodium nitrite and biofilm in a Litopenaeus vannamei biofloc culture system
title_sort	addition of sodium nitrite and biofilm in a litopenaeus vannamei biofloc culture system
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000400011
work_keys_str_mv	AT laragabriele additionofsodiumnitriteandbiofilminalitopenaeusvannameibioflocculturesystem AT furtadoplinios additionofsodiumnitriteandbiofilminalitopenaeusvannameibioflocculturesystem AT hostinsbarbara additionofsodiumnitriteandbiofilminalitopenaeusvannameibioflocculturesystem AT poerschluis additionofsodiumnitriteandbiofilminalitopenaeusvannameibioflocculturesystem AT wasieleskyjrwilson additionofsodiumnitriteandbiofilminalitopenaeusvannameibioflocculturesystem
_version_	1714205168628662272

Addition of sodium nitrite and biofilm in a Litopenaeus vannamei biofloc culture system

Ejemplares similares