Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Sublethal effects of propiconazole on the metabolism of lambari Deuterodon iguape (Eigenmann 1907), a native species from Brazil

Texto completo
Autor(es):
Henriques, Marcelo Barbosa [1] ; Rezende, Karina Fernandes Oliveira [2] ; Castilho-Barros, Leonardo [1] ; Barbieri, Edison [3]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Inst Pesca Governo Estado Sao Paulo, Av Bartolomeu de Gusmao 192, BR-11030906 Santos, SP - Brazil
[2] Univ Sao Paulo, Inst Ciencias Biomed, Dept Biol Celular & Desenvolvimento, Av Prof Lineu Prestes 1524, BR-05508000 Sao Paulo, SP - Brazil
[3] Inst Pesca Governo Estado Sao Paulo, Av Prof Wladimir Besnard S-N, BR-11990000 Cananeia, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: FISH PHYSIOLOGY AND BIOCHEMISTRY; v. 47, n. 4, p. 1165-1177, AUG 2021.
Citações Web of Science: 1
Resumo

The objective of this study was to analyze the sublethal effects of propiconazole on Deuterodon iguape, a native fish common in Brazil, which has potential for aquaculture and use as a bioindicator. The hypothesis was to test whether D. iguape has a metabolism similar to Danio rerio so that its use in bioassays may be validated. Lethal concentration (LC50) and metabolic rates were studied in fish exposed to propiconazole. Specific oxygen consumption and ammonia excretion for D. iguape and D. rerio increased by 0.01 mu g L-1 and then decreased as the propiconazole concentration increased. The decrease in the averages of specific oxygen consumption at the concentration of 0.1 mu g L-1 represented a reduction in the metabolic rate compared to the control of 71% for D. iguape and 40% D. rerio. For the ammonia excretion, at the same concentration, there was a reduction of 68.7% and 45.4% for D. iguape and D. rerio, respectively. When comparing ammonia excretion of the two species for each concentration of propiconazole, there was a significant difference (p < 0.05) in relation to the control and for the highest concentration (0.1 mu g L-1). As for specific oxygen consumption, there was a statistically significant difference only for the concentration of 0.1 mu g L-1. D. iguape proved to be a good and useful bioindicator for ichthyologists or ecologists in studies of moderate pesticide contamination in freshwater aquatic environments, as its metabolic response was similar to D. rerio. (AU)

Processo FAPESP: 18/19747-2 - Lambari Deuterodon iguape Eigenmann, 1907 como espécie nativa alternativa para a aquicultura em áreas protegidas
Beneficiário:Marcelo Barbosa Henriques
Modalidade de apoio: Auxílio à Pesquisa - Regular