The equatorial Pacific Ocean: Grazer-controlled phytoplankton populations in an iron-limited ecosystem1

@inproceedings{Price1994TheEP,
  title={The equatorial Pacific Ocean: Grazer-controlled phytoplankton populations in an iron-limited ecosystem1},
  author={Neil M Price and Beth A Ahner and François M M Morel},
  year={1994}
}
Experiments were conducted in the equatorial Pacific Ocean to assess the role of Fe and grazing in regulating use of N03- by the phytoplankton community. Nitrate uptake rates in situ were slow because NH,+ concentrations were inhibitory and because phytoplankton biomass was kept low by grazing. When feeding of grazers was artificially suppressed, phytoplankton net growth rate increased, biomass accumulated, and NO, - was consumed. Rapid rates of Fe uptake [40 pmol Fe (g Chl a)-’ h-l] decreased… CONTINUE READING

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