Publication Date:
2021-05-19
Description:
This study was conducted to evaluate histopathological responses in liver, gills and
kidney in Rutilus caspicus exposed to concentrations of 50, 100, 150 mg L^-1
of methyl
tert-butyl ether, for 7, 14, and 21 days. The experiments were conducted in water
temperature of 19±1 °C, dissolved oxygen of 7.6 ± 0.2 mg L^-1
and zero salinity. A total
of 156 fish were studied in this experiment. In the first, second and third week of the
experiment, three fish were taken randomly from each aquarium. To examine the
tissues, the liver, gills and kidney were isolated and prepared for evaluation using
standard histological techniques. Tissue damage in the liver includes: blood congestion,
congestion of sinusoid, melano macrophage aggregation, hepatocyte hypertrophy,
vacuolation, degeneration and cellular necrosis. Gill tissue damage includes:
hyperplasia, degeneration lifting, telangiectasis, in secondary lamellae, blood
congestion in primary and secondary lamellae, S formation of lamellae, reduction in
length of secondary lamella, lamellar fusion and cellular necrosis. Tissue damage in the
kidney includes: tubular shrinkage, blood congestion, melano macrophage aggregation,
glomerular shrinkage, cellular necrosis, tubular degeneration, reduction in interstsial
cells and interstisial hematopoietic tissue degeneration. The amount of tissue damages
in high concentrations of pollutants was high, while gill, liver and kidney in the control
group was observed in the normal outline. The results of this study showed that methyl
tert-butyl ether (MTBE) can cause damage in vital tissues of R. caspicus and even,
eventually lead to death.
Description:
Published
Keywords:
Histopathology
;
Gill
;
Kidney
;
Liver
;
Methyl tert-butyl ether
;
Rutilus caspicus
;
In vitro
;
MTBE
Repository Name:
AquaDocs
Type:
Journal Contribution
,
Refereed
Format:
pp.821-834
Permalink
