Preprint Brief Report Version 1 NOT YET PEER-REVIEWED

Assessment of Toxic Elemental Concentration in Marine Fish Trachurus capensis (Cape Horse Mackerel) and Implications for Public Health

  1. Department of Environmental Sciences, UNISA Florida Campus, P.O Box 1710, Florida 1710, South Africa
Version 1 : Received: 23 August 2016 / Approved: 23 August 2016 / Online: 23 August 2016 (11:43:12 CEST)

How to cite: Debipersadh, S.; Selvarajan, R.; Sibanda, T.; Naidoo, R. Assessment of Toxic Elemental Concentration in Marine Fish Trachurus capensis (Cape Horse Mackerel) and Implications for Public Health. Preprints 2016, 2016080196 (doi: 10.20944/preprints201608.0196.v1). Debipersadh, S.; Selvarajan, R.; Sibanda, T.; Naidoo, R. Assessment of Toxic Elemental Concentration in Marine Fish Trachurus capensis (Cape Horse Mackerel) and Implications for Public Health. Preprints 2016, 2016080196 (doi: 10.20944/preprints201608.0196.v1).

Abstract

While fish is considered a healthy component of the human diet, consumption of fish with high levels of trace metals in their flesh constitutes a public health risk as trace metals have been proven to be toxic with deleterious health effects. We investigated the concentration of toxic elements in sea water and also in different body parts of the fish Trachurus capensis caught off Durban using Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES). The highest metal concentration in fish body parts was observed for Pb followed by Zn. Significantly higher levels of Mn were observed in fish gills as compared to the tissue (muscle) and fish frame. With respect to bioaccumulation, significantly higher Pb levels were observed in fish tissues compared to As, Cr and Mn. In the frame, significantly higher Pb levels were observed compared to all other metals except Ba. There were no significant differences in the concentrations of different metals in fish gills. Overall, the toxic metal concentrations in the muscle of cape horse mackeral were below levels of concern for human consumption as defined by the FAO and WHO.

Subject Areas

Trachurus capensis, sea water, public health, toxic metals, bioaccumulation

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