Abstract
The present study aims to investigate the histopathological changes in gill, liver, and kidney of fresh water fish Gonoproktopterus kolus (Sykes). The fingerlings of fish were exposed to Zinc (Zinc sulphate) in acute toxicity experiment (96 hrs.). The LC<sub>0</sub> and LC<sub>50</sub> concentrations were 2.430 ppm and 4.860 ppm respectively. After acute exposure, fish were sacrificed and tissues were obtained separately from control and LC<sub>0</sub> and LC<sub>50</sub> groups. These tissues were fixed in Bouin's fluid and standard protocol was followed to study histopathological alterations in gill, liver and kidney of experimental fish. In gills, fusion and degenerative changes were observed in secondary gill lamellae. In liver, hepatocytes showed hypertrophy due to degenerative changes in cellular structure. Empty hepatocytes showed shifting of nucleus. Kidney showed degenerative nuclei in the epithelial lining of the tubule. Haemopoetic tissue showed hypertrophy and disarray. Distended glomerulus was observed. Renal tubules showed disarrangement as compared to control. Thus, in present investigation, it was observed that heavy metal zinc is affecting the fishes at tissue level, which may interfere in physiological processes.
Highlights
Heavy metal pollution is a serious problem in the aquatic ecosystem due to their ability to interfere in the food chain and accumulate in the aquatic organisms Berman [3]
Histopathology of Gills: The normal histological structure and changes induced by the effects of heavy metal at acute concentration are shown in Figure No I (Figure A to C)
The normal histological structure and changes induced by the effects of heavy metal at acute concentration are shown in Figure - 2 (Figure A to C)
Summary
Heavy metal pollution is a serious problem in the aquatic ecosystem due to their ability to interfere in the food chain and accumulate in the aquatic organisms Berman [3]. Histopathology of Gills: The normal histological structure and changes induced by the effects of heavy metal at acute concentration are shown in Figure No I (Figure A to C). Zinc Induced Histopathological Alternations in Gill, Liver, and Kidney of Freshwater Fish Gonoproktopterus kolus (Sykes)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
