Accumulation of toxic and essential trace metals in fish and prawns from Keti Bunder Thatta District, Sindh.

Abstract.-Toxic and essential trace element, contents of six fish and two prawn species from Keti Bunder were determined by atomic absorption spectrometry. The mean concentrations (µg g −1 wet weight) of toxic and trace elements in the muscle of fish and prawn were Cd: 0.024-0.035 and 0.025-0