Primary productivity of bay of bengal at paradip in Odisha, India

The primary productivity of Bay of Bengal at Paradip has been assessed both spatially and seasonally. The maximum GPP was noted during summer season and minimum in rainy season. The annual mean GPP varied from0.077+0.008g^c m^3 h^(-1)to0.996 + 0.16 g^c m^3 h^(-1). The NPP value varicd from 0.016+ 0.002 g^c m^3 h^(-1) to 0.845 + 0.072 g^c m^3 h^(-1)and showed an increasing trend from the month of September 2011 to February, 2012. The community respiration (CR) ranged from 0.027 + 0.003 g^c m^3 h^(-1) to 0.499 + 0.046 g^c m^3 h^(-1) and exhibited a systematic seasonal variation with maximum and minimum value during summer and winter respectively. The Correlation coefficients (®) of NPP, GPP and CR with certain physicochemical parameters have also been established.