Impact of Some Heavy Metals on Muscles, Hematological and Biochemical Parameters of the Nile Tilapia in Ismailia Canal, Egypt

Ismailia Canal is one of the most important irrigation and drinking water resources. It is one of the most important branches of the Nile River in Egypt. It is the main source of drinking and irrigation water for many cities.  In a four-month study period (April- July 2022), O. niloticus fish samples were collected every two weeks from 4 sites. Abu-Z’abaal, Belbies, abbassa region and El-Tal Al-Kapeir City were selected to study. The samples were chemically analyzed for the detection of heavy metals (Fe, Zn, Cu, cd, and Pb). El-Tal Al-Kapeir City site was more polluted than the other sites. The average concentration of Fe in the water of abbassa region exceeded the permissible limit, while  Pb surpassed the permissible range in all regions for the water samples prescribed by EOS (1993) and esc (1983[A1] ). The concentration of heavy metals evaluated in the muscles of the fish under study was generally lower than the levels issued by in WHO (1999), EOS (1993). The mean values of RBC, Hb, Hct and MCV in the blood of the Nile tilapia decreased from Abu Z'abaal City to El-Tal Al-Kapeir city. On the contrary, MCH and MCHC increased from Abu Z'abaal City to El-Tal Al-Kapeir City. The mean concentrations of all the biochemistry parameters increased in the blood serum of fish collected from El-Tal Al-Kapeir City compared to those sampled from Abu Z'abaal City.








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