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Influence of physical and biological processes on the concentration of O2 and CO2 in the ice-covered Weddell Sea in the spring of 1988

  • J. M. Bouquegneau
  • W. W. C. Gieskes
  • G. W. Kraay
  • A. M. Larsson
Conference paper

Summary

In October and November 1988, measurements of oxygen and total dissolved inorganic carbon (TCO2) concentrations were made in the northwestern Weddell Sea to the south and north of the marginal ice edge, in order to estimate the relative importance, regarding their variations, of both biological (photosynthesis and respiration) and physical (transport of O2 and CO2 by turbulent movements and by intrusion from the atmosphere) processes. In the ice-covered region, both respiration and upwelling determined the O2 and TCO2 variations, whilst in the open water just north of the marginal ice edge, photosynthetic activity was the most important factor controlling O2 and TCO2 levels. These findings underline the importance of the activity of the pelagic ecosystem in determining the concentration of O2 and CO2 not only in the ice-free but also in the ice-covered Antarctic Ocean.

Keywords

Antarctic Ocean Warm Deep Water Potential Primary Production Warm Water Tongue Carbon Dioxide Distribution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Azam F, Beers JR, Campbell L, Carlucci AF, Holm-Homsen O, Reid FMH, Karl DM (1979) Occurence and metabolic activity of organisms under the Ross Ice Shelf, Antarctica, at station J9. Science 203:451–453PubMedCrossRefGoogle Scholar
  2. Bouquegneau JM, Fenton N, Gieskes W, Heusel R, Joins C, Kraay G, Kristiansen S, Overloop W, Tilzer MM (1989) The productivity of phytoplankton. In: Hempel I (ed) The Expedition ANTAR-KTIS VII/1 and 2 (EPOS I) of RV Polarstern in 1988/1989. Ber Polarforsch 62:125–137Google Scholar
  3. Carrit DE, Carpenter JH (1966) Comparison and evaluation of currently employed modifications of the Winkler method for determining dissolved oxygen in sea water. A NASCO Report J Mar Res 24:286–318Google Scholar
  4. Disteche A (1962) Electrochemical measurements with a glass electrode at high pressure. J Electrochem Soc 109:1084–1092CrossRefGoogle Scholar
  5. Disteche A (1969) pH measurements with a glass electrode withstanding 1500 kg/cm2 hydrostatic pressure. Rev Sci Inst 30:474–478CrossRefGoogle Scholar
  6. Frankignoulle M, Bouquegneau JM (1990) Upwelling characterization in Calvi Bay by means of the total alkalinity. Bull Soc R Sci Lg 59:89–96Google Scholar
  7. Frankignoulle M, Disteche A (1984) CO2 chemistry in the water column above a Posidonia oceanica seagrass bed and related airsea exchanges. Oceanol Acta 7:209–217Google Scholar
  8. Garrison DL, Sullivan CW, Ackley SW (1986) Sea ice microbial community studies in the Antarctic. BioScience 36:243–250CrossRefGoogle Scholar
  9. Gordon AL (1988) The Southern Ocean and global climate. Oceanus 31:39–46Google Scholar
  10. Gordon AL, Huber BA (1984) Thermohaline stratification below the Southern Ocean sea ice. J Geophys Res 89:641–648CrossRefGoogle Scholar
  11. Gordon AL, A Chen CT, Metcalf WG (1984) Winter mixed layer entrainment of Weddell deep water. J Geophys Res 89:637–640CrossRefGoogle Scholar
  12. Gran G (1952) Deermination of the euivalence point in potentiometric titrations. Part II. Int Congress of Analyt Chem 77:661–671Google Scholar
  13. Grossi SM, Kottmeier ST, Sullivan CW (1984) Sea ice microbial communities. III. Seasonal abundance of microalgae and assocated bacteria, McMurdo Sound, Antarctica. Microbiol Ecol 10:231–242CrossRefGoogle Scholar
  14. Hansson I (1973) A new set of pH scales and standard buffers for seawater. Deep-Sea Res 25:140–147Google Scholar
  15. Hansson I, Jagner D (1973) Evaluation of the accuracy of Gran plots by means of computer calculations. Anal Chim Acta 65:363–373CrossRefGoogle Scholar
  16. Jacques G (1989) Primary production in the open Antarctic Ocean during the austral summer. A review. Vie Milieu 39:1–17Google Scholar
  17. Jennings JC, Gordon LI, Nelson DM (1984) Nutrient depletion indicates high primary productivity in the Weddell Sea. Nature 309:51–54CrossRefGoogle Scholar
  18. Kottmeier ST, Miller MA, Lizoffe MP, Craft LL, Gulliksen B, Sullivan CW (1985) Ecology of sea ice microbial communities (SIMCO) during the 1984 winter to summer transition in Mc Murdo Sound, Antarctica. Antarct J US 20:128–130Google Scholar
  19. Larsson AM, Sehlstedt PI, Bianchi F, Cioce F, Socal G, Nöthig EM, Dieckmann G, Bouquegneau JM (1990) Hydrographical, chemical and biological observations during the European Polarstern Study-EPOS, leg 1–11 October to 19 November 1988 with R/V Polarstern. Anne-Marie Larsson (ed) Distributed by Dept of Oceanography, University of Gothenburg, Gothenburg, SwedenGoogle Scholar
  20. Lipps JR, Ronan TE, Delaca TE (1979) Life below the Ross Ice Shelf, Antarctica. Science 203:447–449PubMedCrossRefGoogle Scholar
  21. Marra J, Boardman DC (1984) Late winter chlorophyll a distribution in the Weddell Sea. Mar Ecol Prog Ser 19:197–205CrossRefGoogle Scholar
  22. Marra J, Burckle LH, Ducklow HW (1982) Sea ice and water column plankton distributions in the Weddell Sea in late winter. Antarct JUS 17:111–112Google Scholar
  23. Mehrbach C, Culberson CH, Hawley JE, Pytkowicz RM (1973) Measurements of the apparent dissociation constants of carbonic acid in seawater at atmospheric pressure. Limnol Oceanogr 18:897–907CrossRefGoogle Scholar
  24. Millero FJ (1979) The thermodynamics of the carbonate system in seawater. Geochim. Cosmochim Acta 43:1651–1661CrossRefGoogle Scholar
  25. Rivkin RB, Putt M (1987) Heterotrophy and photoheterotrophy by Antarctic microalgae: light-dependent incorporation of amino acids and glucose. J Phycol 23:442–452CrossRefGoogle Scholar
  26. Smith WO, Nelson DM (1986) Importance of ice-edge phytoplankton production in the Southern Ocean. BioScience 36:251–257CrossRefGoogle Scholar
  27. Tijssen SB (1979) Diurnal oxygen rhythm and primary production in the mixed layer of the Atlantic Ocean at 20°N. Neth J Sea Res 13:79–84CrossRefGoogle Scholar
  28. Wakatsuchi M (1982) Seasonal variations in water structure and fast-ice near Syowa Station, Antarctica, in 1976. Antarct Rec 74:85–108Google Scholar
  29. Wakatsuchi M (1983) Brine exclusion process from growing sea-ice. Contr Inst Low Temp Sci A33:29–65Google Scholar
  30. Weiss RF (1970) The solubility of nitrogen, oxygen and argon in water and sea water. Deep-Sea Res 17:721–735Google Scholar
  31. Weiss RF, Ostlund HG, Craig H (1979) Geochemical studies in the Weddell Sea. Deep-Sea Res 26A:1093–1120CrossRefGoogle Scholar
  32. Williams PJ LeB, Jenkinson NW (1982) A transportable microprocessor-controlled precise Winkler titration suitable for field station and shipboard use. Limnol Oceanogr 27:576–584CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • J. M. Bouquegneau
    • 1
  • W. W. C. Gieskes
    • 2
  • G. W. Kraay
    • 3
  • A. M. Larsson
    • 4
  1. 1.University of Liège, OceanologyLiègeBelgium
  2. 2.Department of Marine BiologyUniversity of GroningenHarenThe Netherlands
  3. 3.Netherlands Institute for Sea ResearchDen Burg, TexelThe Netherlands
  4. 4.Department of OceanographyUniversity of GothenburgGöteborgSweden

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