Artículos de revistas
Histological Changes in the Kidney of Sciades Herzbergii (Siluriformes, Ariidae) for Environmental Monitoring of a Neotropical Estuarine Area (São Marcos Bay, Northeastern Brazil)
Fecha
2019-08-15Registro en:
Bulletin of Environmental Contamination and Toxicology, v. 103, n. 2, p. 246-254, 2019.
1432-0800
0007-4861
10.1007/s00128-019-02633-x
2-s2.0-85069454969
Autor
Nilton Lins University (UniNiltonLins)
Universidade Estadual de Maringá (UEM)
Universidade Estadual Paulista (Unesp)
University of the Azores
Institución
Resumen
The aim of this study was to evaluate the environmental quality of a port in Brazil using the renal alterations in Sciades herzbergii as biomarkers of aquatic contamination. Samples of S. herzbergii were collected in two areas in São Marcos Bay, Brazil: (A1) Itaqui Port (potentially impacted area); and (A2) Puca Creek (control area). At the same time, the abiotic data was obtained, in addition to the sampling of water for metals analysis. The fish kidney of each specimen was submitted to the usual histological technique. It was possible to identify alterations such as melanomacrotic centers, dilation of the glomeruli, capillary endothelium gap, occlusion of the tubular lumen, immature nephron and dilated vessels. Samples of S. herzbergii collected in the port region showed a higher frequency of renal alterations, indicating that the organisms present in that region are probably suffering due to the impacts caused by the port activities.