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Research Article

The Whale Pump: Marine Mammals Enhance Primary Productivity in a Coastal Basin

  • Joe Roman mail,


    Affiliation: Gund Institute for Ecological Economics, University of Vermont, Burlington, Vermont, United States of America

  • James J. McCarthy

    Affiliation: Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts, United States of America

  • Published: October 11, 2010
  • DOI: 10.1371/journal.pone.0013255
  • Featured in PLOS Collections

Reader Comments (2)

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Posted by joeroman on 09 Feb 2011 at 11:29 GMT

Samples 1 and 2 had the highest initial NH4+ concentrations, yet their rates of NH4+ production ranged from the second lowest to the highest in the entire data set.

The numeral “2” was misplaced on Fig 2B. It should be placed next to the terminal datum point on the time course starting at 28 µmol.

No competing interests declared.