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Acute toxicity of nitrate in Litopenaeus vannamei juveniles at low salinity levels Ciência Rural
Alves Neto,Inácio; Brandão,Hellyjúnyor; Furtado,Plínio Schmidt; Wasielesky Jr,Wilson.
ABSTRACT: Different technologies have been developed to improve the performance of Litopenaeus vannamei in low salinity, mainly in super-intensive systems like recirculation and BFT (Biofloc Technology System) systems. However, there is an accumulation of toxic nitrogenous compounds to the shrimps such as nitrate, that at high concentrations and depending on the salinity of the culture water can be lethal. Acute toxicity tests allow to analyze the relationship between the compound and other abiotic or biotic variables. The aim of this research was to determine the acute toxicity and safety level of nitrate (N-NO3 -) for juveniles of L. vannamei at salinities of 5 and 10g.L-1. For salinity of 5g.L-1, a control and 5 treatments were tested, with nitrate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Median lethal concentration; Pacific white shrimp; Brackish water.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000100401
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