Bioaccumulation profiles of heavy metals in fish collected from Rosetta branch of Nile River, Egypt: A case study for organ's responsibility

Document Type : Original Article

Authors

1 Mammalian & Aquatic Toxicology Department, Central Agricultural Pesticides Laboratory (CAPL), Agricultural Research Center (ARC), 12618-Dokki, Giza, Egypt

2 Department of Zoology, Faculty of Science, Cairo University, Cairo, Egypt

Abstract

The accumulation patterns in organs of tilapia and catfish collected from 4 locations: Alqam, Shabour, Shobrakhite and Edfina from Rosetta branch of Nile River, Egypt during summer and winter 2018/2019 were assessed. Seven metals: Zinc (Zn), Cadmium (Cd), Lead (Pb), Ferrous (Fe), Nickel (Ni), Copper (Cu) and Manganese (Mn) were determined on Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) instrument. In water, Fe exhibited the greatest proportions, followed by Zn. But Cd and Ni exhibited the least values. Significant differences (P<0.05) were obtained in metal accumulation in organs, where liver and kidney exhibited the great concentrations, but muscles and gills exhibited the least uptake patterns. Bioconcentration factor (BCF) in tilapia were greater than catfish in the following order: Kidney> liver> gills> muscles. Cd exhibited the order in tilapia: kidney> liver> gills> muscles with BCF values: 11.72, 1.92, 1.87 and 0.85, respectively. Low BCF values were noticed for Mn, where it ranged from 0.04 to 0.54 in the above organs. Such these accumulations may induce adverse effects in fish along physiological status and their susceptibility to disease's infection. Also, may provide alarming signs for fish consumers in these regions.

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Volume 65, Issue 13 - Serial Number 13
Special Issue: Chemistry and Global Challenges
December 2022
  • Receive Date: 12 April 2022
  • Revise Date: 23 August 2022
  • Accept Date: 08 September 2022
  • First Publish Date: 08 September 2022