Abstract:

In this paper the distribution of oxygen-minimum layer and factors controlling on it in the sea areas adjacent to South Shetlands and north of Adelaid, Antarctica, in summer is discussed.The correlation coefficient between oxygen content, temperature, salinity, density, pH and apparent oxygen utilization (A.O.U.) in the oxygen-minimum layer is calculated and correlation between them is discussed. The correlation between oxygen, temperatur and A.O.U are negative (r= -0.9688, -0.9945, respectively) .The variation of oxygen-minimum layer is mainly controlled by temperature and biochemical process in deep water.