Minimum iron requirements of marine phytoplankton and the implications for the biogeochemical control of new production

Research output: Chapter in Book/Report/Conference proceedingChapter

231 Scopus citations


The Fe:PO4 ratio at which nutrient limitation of final cell yield shifts from one nutrient to the other was determined for 22 species of marine phytoplankton. Because some phytoplankton species have adaptations that reduce their dependence on combined N and Fe but not on P, it is concluded that PO4 is the ultimate limiting nutrient of new production of organic C on a geochemical and evolutionary time scale, even though N and Fe are important growth rate-limiting nutrients on an ecological time scale. -from Author

Original languageEnglish
Title of host publicationLimnology & Oceanography
Number of pages16
StatePublished - Dec 1 1991


ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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