A phosphate concentration of 1.5 mmol m-3. which of these, Ask an Expert

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Suppose water upwelling to the surface has a total carbon concentration of 2300 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?

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