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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
26/02/2019 |
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Data da última atualização: |
11/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
FERREIRA, N. S.; OLIVEIRA, L. H. B.; AGRELLI, V.; OLIVEIRA, A. F. de; NOGUEIRA, A. R. de A.; OLIVEIRA, A.; GONZALEZ, M. H. |
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Afiliação: |
Nathalia S. Ferreira, UNESP; Luciano H. B. Oliveira, UNESP; Vitor Agrelli, UNESP; Aline F. de Oliveira, UFSCar; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; Andrea Oliveira, UFPR; Mario H. Gonzalez, UNESP. |
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Título: |
Bioaccumulation and acute toxicity of As(III) and As(V) in Nile tilapia (Oreochromis niloticus). |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Chemosphere, v.217, p.349-354, 2019. |
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ISSN: |
0045-6535 |
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DOI: |
https://doi.org/10.1016/j.chemosphere.2018.11.013 |
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Idioma: |
Inglês |
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Conteúdo: |
The distribution of arsenic in the different tissues of tilapia fish is determined by the exposure time and the depuration rate. The mechanisms of toxicity/carcinogenicity depend on the arsenic species involved in the biotransformation processes. After a 7-day exposure period, the accumulation of inorganic arsenic (iAs) in the tilapia tissues studied was in the order: liver > stomach > gills > muscles. In bioaccumulation assays, the values of the organ uptake constant (ka) ranged from 0.06 to 0.51 mL g1 d1, while the depuration rate constant (kd) values were in the range 0.03e1.15 d1. Higher iAs bioaccumulation factor (BCF) values were observed for the stomach (3.1 mL g1 ) and the liver (1.6 mL g1), reflecting their high capacity to accumulate iAs species. These organs act as long-term storage sites for iAs, following chronic exposure. The LC50 values were determined considering the average iAs concentration and the cumulative fish mortality. For As(III), the LC50 values indicated fish mortality at concentrations above 30 mg L1. The fish showed greater tolerance to exposure to As(V), compared to As(III), with fish mortality after the second day of exposure requiring an As(V) concentration 7-fold higher than As(III). |
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Palavras-Chave: |
Inorganic arsenic. |
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Thesagro: |
Tilápia. |
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Thesaurus NAL: |
Acute toxicity; Bioaccumulation. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
LEADER 02038naa a2200265 a 4500
001 2106515
005 2019-12-11
008 2019 bl uuuu u00u1 u #d
022 $a0045-6535
024 7 $ahttps://doi.org/10.1016/j.chemosphere.2018.11.013$2DOI
100 1 $aFERREIRA, N. S.
245 $aBioaccumulation and acute toxicity of As(III) and As(V) in Nile tilapia (Oreochromis niloticus).$h[electronic resource]
260 $c2019
520 $aThe distribution of arsenic in the different tissues of tilapia fish is determined by the exposure time and the depuration rate. The mechanisms of toxicity/carcinogenicity depend on the arsenic species involved in the biotransformation processes. After a 7-day exposure period, the accumulation of inorganic arsenic (iAs) in the tilapia tissues studied was in the order: liver > stomach > gills > muscles. In bioaccumulation assays, the values of the organ uptake constant (ka) ranged from 0.06 to 0.51 mL g1 d1, while the depuration rate constant (kd) values were in the range 0.03e1.15 d1. Higher iAs bioaccumulation factor (BCF) values were observed for the stomach (3.1 mL g1 ) and the liver (1.6 mL g1), reflecting their high capacity to accumulate iAs species. These organs act as long-term storage sites for iAs, following chronic exposure. The LC50 values were determined considering the average iAs concentration and the cumulative fish mortality. For As(III), the LC50 values indicated fish mortality at concentrations above 30 mg L1. The fish showed greater tolerance to exposure to As(V), compared to As(III), with fish mortality after the second day of exposure requiring an As(V) concentration 7-fold higher than As(III).
650 $aAcute toxicity
650 $aBioaccumulation
650 $aTilápia
653 $aInorganic arsenic
700 1 $aOLIVEIRA, L. H. B.
700 1 $aAGRELLI, V.
700 1 $aOLIVEIRA, A. F. de
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aOLIVEIRA, A.
700 1 $aGONZALEZ, M. H.
773 $tChemosphere$gv.217, p.349-354, 2019.
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