Registro completo |
Provedor de dados: |
Ciência Rural
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País: |
Brazil
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Título: |
Acute toxicity of nitrite to matrinxã, Brycon cephalus (Günther, 1869), (Teleostei-Characidae)
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Autores: |
Avilez,Ive Marchioni
Aguiar,Lucia Helena de
Altran,Alexandre Eneas
Moraes,Gilberto
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Data: |
2004-12-01
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Ano: |
2004
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Palavras-chave: |
LC50
Nitrite
Matrinxã
Brycon cephalus
Toxicity
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Resumo: |
Nitrite leads to many physiological and hematological disturbances followed by lethality. This work reports the lethal concentration of nitrite to juvenile matrinxã. Experiments were done at 24ºC, pH 6.7-7.0 under natural photoperiod. Fish were exposed to 0.2- 0.5- 1.0 and 2.0mg L-1 of nitrite N-NO2 for 96h. The 96-h LC50 of nitrite-N was calculated by the trimmed Spearman-Karber method (0.86±0.05mg L-1; 0.57-1.30 to 95%CI) and it was concluded that matrinxã is very sensitive to environmental nitrite. Therefore, care must be taken to prevent accumulation of nitrite in intensive culture systems of matrinxã.
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Tipo: |
Info:eu-repo/semantics/article
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Idioma: |
Inglês
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Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000600013
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Editor: |
Universidade Federal de Santa Maria
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Relação: |
10.1590/S0103-84782004000600013
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Formato: |
text/html
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Fonte: |
Ciência Rural v.34 n.6 2004
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Direitos: |
info:eu-repo/semantics/openAccess
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