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Article Type

Research Article

Subject Area

Aquatic Science

Abstract

The present research examined the levels of lead, cadmium, copper and zinc in water, sediments, and some vital organs of Solea solea fish from Lake Qaroun, Egypt, such as liver, gills, kidney, muscle and end of the alimentary. The contamination factor (CF) values of Pb, Cd, Cu, and Zn are low contamination which CF ˂ 1. According to the results, fish hunted from the eastern and southeast areas of the lake had the highest concentrations of the various heavy metals in the following order: The current findings make it evident that zinc accumulated in the studied organs in the following order: Kidneys > liver> gills > end of alimentary canal > muscles. Furthermore, cadmium bioaccumulation occurs in Solea solea in the following order: gills > end of alimentary canal > kidney > liver > muscles. However, liver, gills, and kidneys of fish that were received from the lake's southeast and eastern regions clearly showed damage and underwent histopathological changes. Fish collected from the lake's southeast and eastern regions revealed a much higher white blood cell count and a highly significant decrease in red blood cell counts, hemoglobin, and hematocrit values compared to fish taken from the western sector, which showed values that were roughly normal. The results demonstrated that there were remarkably large differences in the uric acid levels, creatinine, total protein, activities of serum aspartate amino transferase (AST) and alanine amino transferase (ALT) for the Solea solea that were gathered from the various study sites. Around Lake Qaroun. Pb and Cd concentrations in our study are higher than allowed limits; however, Copper and Zinc concentrations in the water are lower than allowed limits for heavy metals.

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