Data/hora: 01/06/2024 02:40:25

Provedor de dados: 	83	
País: 	Brazil	
Título: 	Acute copper toxicity in juvenile fat snook Centropomus parallelus (Teleostei: Centropomidae) in sea water	
Autores: 	Oliveira,Bruno L.; Fernandes,Luiz F. Loureiro; Bianchini,Adalto; Chippari-Gomes,Adriana R.; Silva,Bruno F.; Brandão,Geisamanda P.; Gomes,Levy C.	
Data: 	2014-12-01	
Ano: 	2014	
Palavras-chave: 	Aquatic toxicology; Comet assay; Gills; Lethal toxicity; Micronucleus test.	
Resumo: 	Three experiments were designed to assess the accumulation and acute toxicity of copper (Cu) in juvenile fat snook Centropomusparallelus. The first experiment was performed to determine the 96-h lethal concentration (LC50) of Cu. The second experiment was designed to assess the effects of sublethal concentrations of Cu (0.47 and 0.94 mg/L), while the third one allowed us to test the recovery capacity of fish exposed to the sublethal concentrations Cu and kept in sea water without Cu addition. The LC50value for Cu was found to be 1.88 mg/L Cu. Fish exposed to the sublethal concentrations of Cu showed a significant accumulation of Cu in gills at 96 h respect to the control ones (0.43 µg/g Cu). No significant difference was observed in the accumulation of Cu in gills between fish exposed to 0.47 mg/L (1.09 µg/g Cu) and 0.94 mg/L (1.26 µg/g Cu). Exposure (24 and 96 h) to the sublethal concentrations of Cu tested induced DNA damage in the erythrocytes. The results show that acute exposure to sublethal concentrations induces Cu accumulation and DNA damage in fish, these effects being recovered after 240 h in sea water without Cu addition.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000400845	
Editor: 	Sociedade Brasileira de Ictiologia	
Relação: 	10.1590/1982-0224-20140040	
Formato: 	text/html	
Fonte: 	Neotropical Ichthyology  v.12 n.4 2014	
Fonte: 	info:eu-repo/semantics/openAccess