Histological biomarkers and microbiological parameters of an estuarine fish from the Brazilian Amazon coast as potential indicators of risk to human health.

Autor: de Macedo, Gustavo Henrique Rodrigues Vale1 (AUTHOR) gustavo.macedo.7@hotmail.com, da Silva Castro, Jonatas2 (AUTHOR), de Jesus, Wanda Batista1 (AUTHOR), Costa, Ana Laíssa Pereira3 (AUTHOR), do Carmo Silva Ribeiro, Rafael4 (AUTHOR), de Jesus Roland Pires, Samanda3 (AUTHOR), de Cássia Mendonça Miranda, Rita5 (AUTHOR), da Cunha Araújo Firmo, Wellyson5 (AUTHOR), da Silva, Luís Cláudio Nascimento5 (AUTHOR), Costa Filho, Raimundo Nonato Diniz6 (AUTHOR), Carvalho Neta, Raimunda Nonata Fortes7 (AUTHOR), Pinheiro Sousa, Débora Batista Pinheiro2 (AUTHOR)
Předmět:
Zdroj: Environmental Monitoring & Assessment. Jul2024, Vol. 196 Issue 7, p1-15. 15p.
Abstrakt: This study aimed to isolate and identify pathogenic bacteria in the intestinal tract, skin, and muscles of Sciades herzbergii; detect histopathological changes in the gill and liver; and use these biomarkers for the assessment of potential risks to human health. Fish were sampled during the rainy and dry seasons at two points in São Marcos Bay, Maranhão, Brazil: Ilha dos Caranguejos (IC) and Porto Grande (PG). Isolation and quantification were carried out using COLItest®. Colonies were subjected to identification and phenotypic investigation of antimicrobial resistance using Vitek®. Gill and liver samples were subjected to routine histological examination. The results indicated the presence of Klebsiella pneumoniae and Escherichia coli, the latter of which showed phenotypic resistance to norfloxacin and gentamicin. Fish caught at PG exhibited more extensive gill and liver damage than fish caught at IC. The findings suggest that histological changes in target organs of S. herzbergii may be influenced by infection with pathogenic bacteria. [ABSTRACT FROM AUTHOR]
Databáze: GreenFILE
Externí odkaz: