Distribution of Phosphorus in the Seawater

The concentrations of dissolved inorganic phosphorus (DIP) and dissolved organic phosphorus (DOP) in the ECS ranged from 0.05 to 3.01 and from 0.01 to 0.54 imol/L, respectively. The concentrations of DIP and DOP in the inner shelf were significantly higher than those in the middle and the outer shelves. The concentrations of DIP were significantly higher than those 

The difference in PO4-P concentration between 0 m and 2 m above the bottom layers in the northern stations is greater than that in the southern stations along transect B (Fig. 4.37). Except for stations 24 and 25, PO4-P concentration in the 0 m layer was higher than that in the 2 m above the bottom layer. 

The data obtained from anchor station 13 indicated that the difference in PO4-P concentration between 0 m and 2 m above the bottom layers in 

The N/P ratio has been widely used to determine whether the growth of ph3doplankton in seawater is N- or P-limited. Fig. 4.40 (Wang et al., 2003) shows that the distribution pattern of N/P ratios in the ECS are quite similar to that of nitrate that is, a high value of the N/P ratio was found where the 

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