Abstract
The conservative part TCO2O was correlated with the potential temperature. T. The term .DELTA.TCO2bio represents the exchanges with the marine biosphere and was expressed in the form a.DELTA.X + b.DELTA.Y with X = O2, NO3, PO4 and Y = TA, Ca. The term .DELTA.TCO2 ant represents the excess of TCO2 due to the penetration of human induced CO2 in the ocean, which was expressed in the form co exp(-(z-zo)/H). As a result of the study, the contribution of each of the three identified signals was evaluated and the ratio C/O/N/P for the Red Sea basin was determined.