SEASONAL V ARA TIONS OF TRACE ELEMENTS IN THE SHRIMP Penaeus semisulcatus FROM THE ARABIAN GULF.

Seasonal variations of trace elements Cd, Cr, Fe, Mn, Ni, Pb, V and Zn have been determined in the shrimp Penaeus semisulcatus from the North Arabian Gulf. It was found some element relatively higher concentrations in the shrimp, especially Cr (7 .95 f.Lg/g) Ni ( 41.9 f.Lglg). V( 16.8 f.Lg/g) and pb (5.18 ).lg/g) dry weight. Stationary variations in element concentrations were found in the shrimp and sediment. These were attributed to pollution source in that region. No seasonal fluctuation were found in the element concentrations in the shrimp tissue. This was attributed to the biological behaviour of shrimp such as feeding habit.