Nursery of young Litopenaeus vannamei post-larvae reared in.biofloc- and microalgae-based systems

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dc.contributor.authorSchveitzer, Rodrigo [UNIFESP]
dc.contributor.authorLorenzo, Marco Antonio de
dc.contributor.authorVieira, Felipe do Nascimento
dc.contributor.authorPereira, Scheila Anelise
dc.contributor.authorMourino, Jose Luiz Pedreira
dc.contributor.authorSeiffert, Walter Quadros
dc.contributor.authorAndreatta, Edemar Roberto
dc.date.accessioned2019-08-19T11:49:50Z
dc.date.available2019-08-19T11:49:50Z
dc.date.issued2017
dc.description.abstractA 13-day nursery trial was conducted to evaluate the performance of young Litopenaeus vannamei post -larvae (from PL6 to PL18) reared in both biofloc and microalgae-based systems at a stocking density of 67 PLs L-1. The effects of different concentrations of total suspended solids (TSS) on PL performance were also evaluated. One experimental group was reared in a conventional microalgae-based system with daily water exchange and daily addition of microalgae (herein called microalgae treatment). The other two experimental groups were reared using biofloc technology (BFT) with daily dextrose addition and no water exchange, but in the "Biofloc-500" treatment, TSS were maintained at around 500 mg L-1, while in the "Biofloc-700" treatment, TSS were maintained at around 700 mg L-1. Water quality variables remained within the appropriate range for larval culture. In microalgae treatment, ammonia control was likely associated with its assimilation into microalgae biomass and daily water exchange. In biofloc tanks, however, the addition of dextrose stimulated the production of bacterial biomass from ammonia. This system required only 12.9% of the water used by the microalgae treatment since water was not exchanged during the culture. The nursery of young PLs resulted in similar (P > 0.05) performance in all treatments: survival > 94%, PL length -11.5 mm, and PL dry weight -1.2 mg. In addition, the salinity stress test (> 90.0%) was not significantly different among treatments. Our results indicate that BFT can be as effective as the microalgae-based system for the nursery of young L. vannamei post -larvae. We also found that post -larvae performance was similar (P > 0.05) between biofloc treatments, indicating that organisms can tolerate environments with large quantities of solids.en
dc.description.affiliationUniv Fed São Paulo, Dept Marine Sci, Santos, SP, Brazil
dc.description.affiliationUniv Fed Santa Catarina, Dept Aquaculture, Marine Shrimp Lab, Florianopolis, SC, Brazil
dc.description.affiliationUnifespUniv Fed São Paulo, Dept Marine Sci, Santos, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIDCNPq: 151032/2012-2
dc.description.sponsorshipIDCNPq: PQ 309868/2014-9
dc.description.sponsorshipIDCNPq: 302792/2012-0
dc.format.extent140-145
dc.identifierhttps://dx.doi.org/10.1016/j.aquaeng.2017.07.001
dc.identifier.citationAquacultural Engineering. Oxford, v. 78, p. 140-145, 2017.
dc.identifier.doi10.1016/j.aquaeng.2017.07.001
dc.identifier.issn0144-8609
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/51415
dc.identifier.wosWOS:000411543000006
dc.language.isoeng
dc.publisherElsevier Sci Ltd
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectShrimpen
dc.subjectBFTen
dc.subjectAutotrophicen
dc.subjectTotal suspended solidsen
dc.titleNursery of young Litopenaeus vannamei post-larvae reared in.biofloc- and microalgae-based systemsen
dc.typeinfo:eu-repo/semantics/article
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