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Phosphate pumps and shuttles in the Black Sea

Abstract

Phosphate distributions in oxic–anoxic ocean basins are related to distributions of total oxygen consumed (mainly from free oxygen, nitrate and sulphate) in the decomposition of organic matter1,2. Data from the Black Sea show, however, that phosphate concentrations immediately above and below the redox front are considerably lower and higher, respectively, than would be predicted from such stoichiometric models. This implies extra sinks and/or sources of phosphate and/or total oxygen not associated with organic decomposition. Here, I present two physical–biogeochemical interactions that result in phosphate sinks and sources with the structure needed to explain the observed phosphate anomalies. A phosphate pump based on iron can account for up to 40% of the required sink–source strength. The rest may be caused by a phosphate shuttle based on manganese.

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References

  1. 1

    Richards, F. A. in Proc. 2nd Int. Wat. Pollut. Res. Conf. Tokyo 1964, 215–243 (Pergamon, Oxford, 1965).

  2. 2

    Richards, F. A. in Chemical Oceanography Vol. 1, (eds Riley, J. P. & Skirrow, G.) 611–645 (Academic, London, 1965).

    Google Scholar 

  3. 3

    Brewer, P. G. Woods Hole Oceanogr. Inst. Tech. Rep. Ref. no. 71-65 (1971).

  4. 4

    Spencer, D. W. & Brewer, P. G. J. geophys. Res. 76, 5877–5892 (1971).

    ADS  CAS  Article  Google Scholar 

  5. 5

    Cox, M. G. J. Inst. Math. Appl. 10, 134–149 (1972).

    MathSciNet  Article  Google Scholar 

  6. 6

    Fonselius, S. H. in The Black Sea—Geology, Chemistry and Biology (eds Degens, E. T. & Ross, D. A.) 144–150 (American Association of Petroleum Geologists, Tulsa, 1984).

    Google Scholar 

  7. 7

    Brewer, P. G. & Murray, J. W. Deep-Sea Res. 29, 803–818 (1973).

    Google Scholar 

  8. 8

    Shaffer, G. & Rönner, U. Deep-Sea Res. 31, 197–220 (1984).

    ADS  CAS  Article  Google Scholar 

  9. 9

    Grasshof, K. in Chemical Oceanography Vol. 2 (eds Riley, J. P. & Skirrow, G.) 455–597 (Academic, London, 1975).

    Google Scholar 

  10. 10

    Einsele, W. Archiv. Hydrobiol. Plankton 33, 361–387 (1938).

    Google Scholar 

  11. 11

    Krom, M. D. & Berner, R. A. Geochim. cosmochim. Acta 45, 207–216 (1981).

    ADS  CAS  Article  Google Scholar 

  12. 12

    Deuser, W. G. in The Black Sea—Geology, Chemistry, and Biology (eds Degens, E. T. & Ross, D. A.) 133–136 (American Association of Petroleum Geologists, Tulsa, 1974).

    Google Scholar 

  13. 13

    Merz, A. & Möller, L. Veröff. Inst. Meeresforsch. Berlin. Neue Folge A18 (1928).

  14. 14

    Shaffer, G. J. Phys. Oceanogr. 9, 847–855 (1979).

    ADS  Article  Google Scholar 

  15. 15

    Walin, G. Tellus 29, 128–136 (1977).

    ADS  Article  Google Scholar 

  16. 16

    Csanady, G. T. in Circulation in the Coastal Ocean (Reidel, Dordrecht, 1982).

    Book  Google Scholar 

  17. 17

    Neumann, G. Z. Ges. Erdk. Berl. 3, 92–114 (1944).

    Google Scholar 

  18. 18

    Balzer, W., Grasshoff, K., Dieckmann, P., Haardt, H. & Petersohn, U. Oceanol. Acta 6, 337–344 (1983).

    CAS  Google Scholar 

  19. 19

    Holm, N. Ophelia Suppl. 1, 287–304 (1978).

    Google Scholar 

  20. 20

    Li, Y.-H. & Gregory, S. Geochim. cosmochim. Acta 38, 703–714 (1974).

    ADS  CAS  Article  Google Scholar 

  21. 21

    Santschi, P. H., Bower, P., Nyffeler, U. P., Azevedo, A. & Broecker, W. S. Limnol. Oceanogr. 28, 899–912 (1983).

    ADS  CAS  Article  Google Scholar 

  22. 22

    Spencer, D. W., Brewer, P. G. & Sachs, P. L. Geochim. cosmochim. Acta 36, 71–86 (1972).

    ADS  CAS  Article  Google Scholar 

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Shaffer, G. Phosphate pumps and shuttles in the Black Sea. Nature 321, 515–517 (1986). https://doi.org/10.1038/321515a0

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