Journal of the Oceanographical Society of Japan

, Volume 29, Issue 5, pp 185–192 | Cite as

Regeneration of silicate in the ocean

I. The Japan Sea as a model of closed system
  • Katsutoshi Kido
  • Masakichi Nishimura


Regeneration of silicate in the Japan Sea, an example of semi-closed sea, was studied. In the Japan Sea Proper Water the apparent regenerative ratio of the nutrients was determined to be:ΔO ∶ΔC ∶ΔN ∶ΔP ∶ΔSi=−289 ∶(116)∶14.3∶1∶81.

It was assumed that the dissolved silicate present in sea water is grouped into three fractions; 1)preformed silicate of conservative nature, 2)oxidative silicate which dissolves in oxidation process of organisms with consumption of oxygen, and 3)non-oxidative silicate which dissolves without oxygen consumption. The dissolution rate ofnon-oxidative silicate in the Japan Sea Proper Water was estimated to be 0.07μg-at. Si/l/yr from the data ofΔAOU values and assumed rates of oxygen consumption. This dissolution rate ofnon-oxidative silicate agreed with that obtained in the deep Pacific by the vertical advection diffusion model byKido andNishimura (1972).


Oxidation Oxygen Japan Oxygen Consumption Advection 
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  1. Alvarez-Borrego, S., L. I. Gordon, L. B. Jones, P. K. Park andR. M. Pytokowicz (1972): Oxygen-carbon dioxide-nutrients relationship in the southeastern region of the Bering Sea. J. Oceanog. Soc. Japan,28, 71–93.Google Scholar
  2. Broecker, W. S. (1971): A kinetic model for the chemical composition of sea water. Quaternary Res.,1, 188–207.Google Scholar
  3. Broenkow, W. W. (1965): The distribution of nutrients in the Costa Rica Dome in eastern tropical Pacific Ocean. Limnol. Oceanog.,10, 40–52.Google Scholar
  4. Calvert, S. E. andN. B. Price (1971): Upwelling and nutrient regeneration in the Benguela Current, October, 1968. Deep-Sea Res.,18, 505–523.Google Scholar
  5. Grill, E. V. andF. A. Richards (1964): Nutrient regeneration from phytoplankton decomposing in seawater. J. Marine Res.,22, 51–69.Google Scholar
  6. Hurd, D. C. (1972): Factors affecting solution rate of biogenic opal in sea water. Earth Planet. Sci. Letters,15, 411–418.Google Scholar
  7. Kato, K. andY. Kitano (1966): Salt error in colourimetric determination of the molybdatereactive silica in sea water. J. Earth Sci., Nagoya Univ.,14, 151–158.Google Scholar
  8. Kido, K. (1970): Determination of silicate and state of silicate in sea water (in Japanese). Thesis for the degree of Master of Fisheries, Hokkaido University. pp 94.Google Scholar
  9. Kido, K. and M.Nishimura (1972): Dissolution rate of silica in the ocean. Paper presented at the annual meeting of the Geochemical Society of Japan, Sendai, Sept. 1972.Google Scholar
  10. Kido, K. (1973): Particulate silica in the ocean. Paper presented at the annual meeting of the Oceanographical Society of Japan, Tokyo, Apr. 1973.Google Scholar
  11. Munk, W. H. (1966): Abyssal recipes. Deep-Sea Res.,13, 707–730.Google Scholar
  12. Nakajima, K. (1973): Suspended particulate matter in the Western North Pacific Ocean. Mem, Fac. Fish. Hokkaido Univ.,20, 1–106.Google Scholar
  13. Ocean Research Institute, University of Tokyo (1970): Data on studies of the ecosystem in the Japan Sea. The Hakuho-Maru KH-70-4 (IBP) Cruise, July 29–Sept. 1, 1970.Google Scholar
  14. Packard, T. T., M. L. Healy andF. A. Richards (1971): Vertical distribution of the activity of the respiratory electron transport system in marine plankton. Limnol. Oceanog.,16, 60–70.Google Scholar
  15. Park, K. (1967): Nutrient regeneration and preformed nutrients off Oregon. Limnol. Oceanog.,12, 353–357.Google Scholar
  16. Redfield, A. C., B. H. Ketchum andF. A. Richards (1963): The influence of organisms on the composition of sea-water. The Sea. Vol. 2. Interscience Publishers New York-London.Google Scholar
  17. Richards, F. A. (1958): Dissolved silicate and related properties of some western North Atlantic and Caribbean waters. J. Marine Res.,17, 449–465.Google Scholar
  18. Schott, F. andM. Ehrhardt (1969): On fluctuation and mean relations of chemical parameters in the Northern North Sea. Kieler Meeresforschungen,25, 272–278.Google Scholar
  19. Stefánsson, U. andF. A. Richards (1963): Process contributing to the nutrient distributions off the Columbia River and Strait of Juan de Fuca. Limnol. Oceanog.,8, 394–410.Google Scholar
  20. Stefánsson, U. (1968): Dissolved nutrients, oxygen and water masses in the northern Irminger Sea. Deep-Sea Res.,15, 541–575.Google Scholar
  21. Strickland, J. D. H. and T. R.Parsons (1968): A practical handbook of sea water analysis. Bull. 167, Fish. Res. Bd. Canada.Google Scholar
  22. Sugiura, Y. andS. Chitiamvong (1964): Relation of silicate concentration to dissolved oxygen amount in sea water collected in the northern frontal region of Kuroshio. J. Oceanog. Soc. Japan,20, 89–92.Google Scholar
  23. Sverdrup, H. U., M. W. Johnson andR. H. Fleming (1942): The Oceans; Their physics, chemistry and general biology. Prentice-Hall, New York.Google Scholar
  24. Tsunogai, S. (1972): An estimation of the rate of decomposition of organic matter in deep water of the Pacific Ocean. In “Biological Oceanography of the Northern North Pacific Ocean”, Prof. S. Motoda's Commemoration Volume.Google Scholar
  25. Uda, M. (1934): Hydrographical studies based on simultaneous oceanographic surveys made in the Japan Sea and in its adjacent waters during May and June, 1932. Records Oceanog. Works Japan,6, 19–107.Google Scholar

Copyright information

© The Oceanographical Society of Japan 1973

Authors and Affiliations

  • Katsutoshi Kido
    • 1
  • Masakichi Nishimura
    • 1
  1. 1.Department of Chemistry, Faculty of FisheriesHokkaido UniversityHakodateJapan

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