Bioaccumulation of heavy metals in the different tissues of Mackerel scad, (Cuvier, 1833) collected from Karachi and Gwadar Coasts of Pakistan.

Introduction: Among other aquatic animals, fish can also accumulate a large number of toxic metals in their various body organs, which may enter in the human body and cause serious health issues. Therefore, the basic aim of this study was to observe the level of some heavy metals (i.e.