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Volumn 320, Issue 5874, 2008, Pages 336-340

Phytoplankton calcification in a high-CO2 world

Author keywords

[No Author keywords available]

Indexed keywords

CALCIUM CARBONATE; CARBON DIOXIDE; SEA WATER;

EID: 42349116421     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1154122     Document Type: Article
Times cited : (638)

References (41)
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    • Materials and methods are available as supporting material on Science Online.
    • Materials and methods are available as supporting material on Science Online.
  • 15
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    • This balance point [the calcification-to-photosynthesis ratio at which a bloom has zero net impact on atmospheric CO2 (C:P, was calculated as having a value of about 1.5 at [DIC, 2050 mmol kg-1, Alk, 2300 μeq kg-1, temperature, 15°C, and salinity, 35. The value of the balance point C:P ratio exhibits some variability with in situ conditions. For instance, it varies in the range 1.0 to 1.8 as in situ conditions vary in the ranges [DIC, 2000 to 2300 μmol kg-1, Alk, 2200 to 2400 μeq kg-1, temperature, 10 to 30°C and salinity, 33 to 37. Its value will decrease by about 20% as PCO 2 increases from 280 ppmv to 700 ppmv other conditions remaining constant, 16
    • 2 increases from 280 ppmv to 700 ppmv (other conditions remaining constant) (16).
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    • Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, TN
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    • Keeling, C.D.1    Whorf, T.P.2
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    • The authors acknowledge M. Hill for manufacturing the bubbling flasks, B. Alker for her assistance in PIC preparation and analysis, D. Hydes for access to the Versatile Instrument for the Determination of Titration Alkalinity instrument, R. Head for POC analysis, and R. Gibson for assistance with PIC and FRRF analysis. We thank H. Medley for laboratory assistance and J. Elliot for useful discussions. We are grateful to the master, officers, crew, and scientific party of the RRS Charles Darwin cruise CD159, in particular I. N. McCave and H. Elderfield. We are grateful to O. M. Schofield, P. A. Tyler, and T. Anderson for discussions on the manuscript. We thank K. Davis for assistance with graphic illustrations. This work was supported by the Royal Society research grant no. 24437 (M.D.I.-R, and by the Betty and Gordon Moore Foundation Marine Microbiology Investigator Award flow cytometry analysis, E.V.A, The field work was supported by the UK Natural Environment Research Coun
    • The authors acknowledge M. Hill for manufacturing the bubbling flasks, B. Alker for her assistance in PIC preparation and analysis, D. Hydes for access to the Versatile Instrument for the Determination of Titration Alkalinity instrument, R. Head for POC analysis, and R. Gibson for assistance with PIC and FRRF analysis. We thank H. Medley for laboratory assistance and J. Elliot for useful discussions. We are grateful to the master, officers, crew, and scientific party of the RRS Charles Darwin cruise CD159, in particular I. N. McCave and H. Elderfield. We are grateful to O. M. Schofield, P. A. Tyler, and T. Anderson for discussions on the manuscript. We thank K. Davis for assistance with graphic illustrations. This work was supported by the Royal Society research grant no. 24437 (M.D.I.-R.) and by the Betty and Gordon Moore Foundation Marine Microbiology Investigator Award (flow cytometry analysis) (E.V.A.). The field work was supported by the UK Natural Environment Research Council RAPID Program. P.R.H. acknowledges support from Natural Environment Research Council (NERC) grant no. NER/S/S/2004/12772. R.E.M.R. and I.R.H. gratefully acknowledge NERC grant no. NER/T/S/2002/00980.


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