Assume the composition of organic matter is (CH2)30(CH2O)76(NH3)17(H3PO4)
(a) Calculate the C:N:P stoichiometric ratio of this organic matter.
(b) Suppose water upwelling to the surface has a total carbon concentration of2300 mmol m-3, an oxygen concentration of 160 mmol m-3, a nitrate concentration of 12 mmol m-3, and a phosphate concentration of 1.5 mmol m-3. Which of these nutrients is likely to limit production if the light supply is adequate and there is NO nitrogen fixation?