International Journal of Fisheries and Aquatic Studies
2020, Vol. 8, Issue 1, Part A
Assessment of some heavy metals in water and fish along Suez Canal with special emphasis to antioxidative enzyme profileAuthor(s):
Viola H Zaki, Nevien KM Abdelkhalek, Mohamed M Abdel-Daim, Mai A El-son, Mohamed I Nofal, Mohamed Fawzy, Shaimaa Shalaby and Abdulla El-sheblyAbstract:
Fish mortalities among cultured Nile tilapia in 4 sectors in the Suez Canal region, Egypt have been recorded. Fishes were transported to the laboratory for clinical examination and samples were taken for histopathological examination. The physical and chemical properties of water quality parameters were evaluated. Additionally, heavy metal levels in water and fish tissues and serum oxidative stress markers such as superoxide dismutase (SOD), Catalase (CAT), glutathione peroxidase (GSH-Px), and glutathione-S-transferase (GST) were assessed. The results showed fish exhibited darkened skin coloration, congested gills with blackening, yellowish discoloration of the liver, and shrunken oocytes of the ovary. Histopathological findings revealed congestion of Branchial blood vessels, hyperplasia of the secondary gill lamellae, and Coagulative necrosis of hepatocytes. The levels of heavy metals in water and tissues were significantly elevated such as Cadmium (Cd), lead (Pb), and Iron (Fe). The oxidative stress markers such as SOD, CAT, GSH-Px, and GST were considerably elevated in the 4-sector regions of the present study. It can be concluded that elevated heavy metals can induce fish mortalities and their elevated levels in fish tissues will cause potential hazardous effects on human consumers.Pages: 25-31 | 207 Views 23 DownloadsDownload Full Article:
How to cite this article:
Viola H Zaki, Nevien KM Abdelkhalek, Mohamed M Abdel-Daim, Mai A El-son, Mohamed I Nofal, Mohamed Fawzy, Shaimaa Shalaby, Abdulla El-shebly. Assessment of some heavy metals in water and fish along Suez Canal with special emphasis to antioxidative enzyme profile. Int J Fish Aquat Stud 2020;8(1):25-31.