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Macroecological patterns of phytoplankton in the northwestern North Atlantic Ocean

Nature volume 419, pages 154–157 (2002)Cite this article

Abstract

Many issues in biological oceanography are regional or global in scope1; however, there are not many data sets of extensive areal coverage for marine plankton. In microbial ecology, a fruitful approach to large-scale questions is comparative analysis2,3 wherein statistical data patterns are sought from different ecosystems, frequently assembled from unrelated studies4. A more recent approach termed macroecology characterizes phenomena emerging from large numbers of biological units by emphasizing the shapes and boundaries of statistical distributions, because these reflect the constraints on variation5. Here, I use a set of flow cytometric measurements to provide macroecological perspectives on North Atlantic phytoplankton communities. Distinct trends of abundance in picophytoplankton and both small and large nanophytoplankton underlaid two patterns. First, total abundance of the three groups was related to assemblage mean-cell size according to the 3/4 power law of allometric scaling in biology6,7. Second, cytometric diversity8 (an ataxonomic measure of assemblage entropy) was maximal at intermediate levels of water column stratification9. Here, intermediate disturbance shapes diversity through an equitable distribution of cells in size classes, from which arises a high overall biomass. By subsuming local fluctuations, macroecology reveals meaningful patterns of phytoplankton at large scales.

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Figure 1: Range of phytoplankton variability in the northwestern North Atlantic Ocean.
Figure 2: Relationship of phytoplankton abundance to biomass and mean cell mass.
Figure 3: Influence of water-column stability on phytoplankton abundance (a) and cytometric diversity (b) (n = 656).

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References

  1. Longhurst, A. Ecological Geography of the Sea (Academic, San Diego, 1998)

    Google Scholar 

  2. Cole, J., Lovett, G. & Findlay S. (eds) Comparative Analyses of Ecosystems: Patterns, Mechanisms, and Theories (Springer, New York, 1991)

  3. Gasol, J. M. & Duarte, C. M. Comparative analyses in aquatic microbial ecology: how far do they go? FEMS Microb. Ecol. 31, 99–106 (2000)

    Article  CAS  Google Scholar 

  4. Li, W. K. W. Annual average abundance of heterotrophic bacteria and Synechococcus in surface ocean waters. Limnol. Oceanogr. 42, 1746–1753 (1998)

    Article  ADS  Google Scholar 

  5. Brown, J. H. Macroecology (Univ. Chicago Press, Chicago, 1995)

    Google Scholar 

  6. Peters, R. H. The Ecological Implications of Body Size (Cambridge Univ. Press, Cambridge, 1983)

    Book  Google Scholar 

  7. Brown, J. H. & West, G. B. (eds) Scaling in Biology (Oxford Univ. Press, New York, 2000)

  8. Li, W. K. W. Cytometric diversity in marine ultraphytoplankton. Limnol. Oceanogr. 42, 874–880 (1997)

    Article  ADS  CAS  Google Scholar 

  9. Sommer, U., Padisák, J., Reynolds, C. S. & Juhász-Nagy, P. Hutchinson's heritage: the diversity-disturbance relationship in phytoplankton. Hydrobiologia 249, 1–7 (1993)

    Article  Google Scholar 

  10. Li, W. K. W. & Harrison, W. G. Chlorophyll, bacteria and picophytoplankton in ecological provinces of the North Atlantic. Deep-Sea Res. II 48, 2271–2293 (2001)

    Article  ADS  Google Scholar 

  11. Chisholm, S. W. in Primary Productivity and Biogeochemical Cycles in the Sea (eds Falkowski, P. G. & Woodhead, A. D.) 213–237 (Plenum, New York, 1992)

    Book  Google Scholar 

  12. Hill, M. O. Diversity and evenness: a unifying notation and its consequences. Ecology 54, 427–432 (1973)

    Article  Google Scholar 

  13. Legendre, P. & Legendre, L. Numerical Ecology, 2nd edn (Elsevier, Amsterdam, 1998)

    MATH  Google Scholar 

  14. Yentsch, C. S. & Phinney, D. A. A bridge between ocean optics and microbial ecology. Limnol. Oceanogr. 34, 1694–1705 (1989)

    Article  ADS  Google Scholar 

  15. Ciotti, Á. M., Lewis, M. R. & Cullen, J. J. Assessment of the relationships between dominant cell size in natural phytoplankton communities and the spectral shape of the absorption coefficient. Limnol. Oceanogr. 47, 404–417 (2002)

    Article  ADS  CAS  Google Scholar 

  16. Damuth, J. D. Common rules for animals and plants. Nature 395, 115–116 (1998)

    Article  ADS  CAS  Google Scholar 

  17. Enquist, B. J., Brown, J. H. & West, G. B. Allometric scaling of plant energetics and population density. Nature 395, 163–165 (1998)

    Article  ADS  CAS  Google Scholar 

  18. Laws, E. A. & Archie, J. W. Appropriate use of regression analysis in marine biology. Mar. Biol. 65, 13–16 (1981)

    Article  Google Scholar 

  19. Montagnes, D. J. S., Berges, J. A., Harrison, P. J. & Taylor, F. J. R. Estimating carbon, nitrogen, protein, and chlorophyll a from volume in marine phytoplankton. Limnol. Oceanogr. 39, 1044–1060 (1994)

    Article  ADS  CAS  Google Scholar 

  20. Agustí, S. & Kalff, J. The influence of growth conditions on the size dependence of maximal algal density and biomass. Limnol. Oceanogr. 34, 1104–1108 (1989)

    Article  ADS  Google Scholar 

  21. Belgrano, A., Allen, A. P., Enquist, B. J. & Gillooly, J. F. Allometric scaling of maximum population density: a common rule for marine phytoplankton and terrestrial plants. Ecol. Lett. (in the press)

  22. Cullen, J. J., Franks, P. J. S., Karl, D. M. & Longhurst, A. in Biological–Physical Interactions in the Sea (eds Robinson, A. R., McCarthy, J. J. & Rothschild, B. J.) The Sea Vol. 12 297–336 (Wiley, New York, 2002)

    Google Scholar 

  23. Rodríguez, J. et al. Mesoscale vertical motion and the size structure of phytoplankton in the ocean. Nature 410, 360–363 (2001)

    Article  ADS  Google Scholar 

  24. Rodríguez, J. Some comments on the size-based structural analysis of the pelagic ecosystem. Sci. Mar. 58, 1–10 (1994)

    Google Scholar 

  25. Cyr, H. in Scaling in Biology (eds Brown, J. H. & West, G. B.) 267–295 (Oxford Univ. Press, New York, 2000)

    Google Scholar 

  26. Connell, J. Diversity in tropical rain forests and coral reefs. Science 199, 1304–1310 (1978)

    Article  ADS  Google Scholar 

  27. Reynolds, C. S. Vegetation Processes in the Pelagic: a Model for Ecosystem Theory (Ecology Institute, Oldendorf/Luhe, 1997)

    Google Scholar 

  28. Cavender-Bares, K. K., Rinaldo, A. & Chisholm, S. W. Microbial size spectra from natural and nutrient enriched ecosystems. Limnol. Oceanogr. 46, 778–789 (2001)

    Article  ADS  Google Scholar 

  29. Li, W. K. W. Composition of ultraphytoplankton in the central North Atlantic. Mar. Ecol. Prog. Ser. 122, 1–8 (1995)

    Article  ADS  Google Scholar 

  30. Li, W. K. W. & Dickie, P. M. Monitoring phytoplankton, bacterioplankton, and virioplankton in a coastal inlet (Bedford Basin) by flow cytometry. Cytometry 44, 236–246 (2001)

    Article  CAS  Google Scholar 

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Acknowledgements

I thank all seagoing staff of the Biological Oceanography Section at Bedford Institute of Oceanography for collecting samples. I am grateful to C. Reynolds, G. Harrison, T. Platt and P. Falkowski for reading the manuscript. I also thank A. Belgrano for sharing his knowledge and pre-publication work on allometry with me. Financial support was provided by DFO Strategic Science Fund in the Ocean Climate Program, and the Interdepartmental Panel on Energy R&D.

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  1. Biological Oceanography Section, Bedford Institute of Oceanography, Department of Fisheries and Oceans, Dartmouth, Nova Scotia, B2Y 4A2, Canada

    W. K. W. Li

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Correspondence to W. K. W. Li.

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Li, W. Macroecological patterns of phytoplankton in the northwestern North Atlantic Ocean. Nature 419, 154–157 (2002). https://doi.org/10.1038/nature00994

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