Data/hora: 18/06/2024 23:48:33

Biblioteca(s): | Embrapa Tabuleiros Costeiros.
Data corrente: | 28/01/2019
Data da última atualização: | 31/01/2019
Autoria: | CUNHA, F. dos S.; SOUSA, N. da C.; SANTOS, R. F. B.; MENESES, J. O.; COUTO, M. V. S. do; SENA FILHO, J. G. de; CARNEIRO, P. C. F.; MARIA, A. N.; FUJIMOTO, R. Y.
Afiliação: | FERNANDA DOS SANTOS CUNHA; NATALINO DA COSTA SOUSA; RUDA FERNANDES BRANDAO SANTOS; JULIANA OLIVEIRA MENESES; MARCIA VALERIA SILVA DO COUTO; JOSE GUEDES DE SENA FILHO, CPATC; PAULO CESAR FALANGHE CARNEIRO, CPATC; ALEXANDRE NIZIO MARIA, CPATC; RODRIGO YUDI FUJIMOTO, CPATC.
Título: | Deltamethrin-induced nuclear erythrocyte alteration and damage to the gills and liver of Colossoma macropomum.
Ano de publicação: | 2018
Fonte/Imprenta: | Environmental Science and Pollution Research, v. 25, n. 15, May 2018, p. 15102-1510, 2018.
Idioma: | Inglês
Conteúdo: | Deltamethrin is one of the most commonly used pyrethroids in the world, and it has a high toxic potential, mainly on aquatic organism. Thus, the purpose of this study was to evaluate LC50 values of deltamethrin on tambaqui (Colossoma macropomum) fingerlings and to investigate genotoxic effects and histopathological responses. Fish were exposed to different concentrations of deltamethrin (0, 6.16?×?10?3; 6.44?×?10?2; 1.34?×?10?1, and 1.93?×?10?1 mg L?1) for 96 h. In addition, a genotoxicity analysis was carried out on peripheral blood erythrocytes and histopathological changes were classified by the severity degree of damage and organ functioning. The 96 h LC50 value for tambaqui was estimated at 5.56?×?10?2 mg L?1 using a static test system. Nuclear abnormalities in exposed fish included micronuclei, blebbed, notched, 8-shaped, and binucleated nuclei forms. Deltamethrin significantly induced a notched nucleus compared to other abnormalities. A histopathological examination showed hepatic lesions and gill damage. Deltamethrin was found to be highly toxic; it induced genotoxicity and caused liver and gill inflammation in tambaqui.
Palavras-Chave: | Deltrametrina.
Thesagro: | Alevino; Peixe; Tambaqui.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/191393/1/Cunha2018.pdf
Registro original: | Embrapa Tabuleiros Costeiros (CPATC)
Exemplares: | CPATC - (25355-1) - UPC - AP - DD -  -  -  - DIS