Seasonality in the Benthic Foraminiferal Community and the Life History of Trochammina Hadai Uchio in Hamana Lake, Japan

  • Satoshi Matsushita
  • Hiroshi Kitazato
Part of the NATO ASI Series book series (ASIC, volume 327)


Trochammina hadai Uchio is a dominant species in brackish waters of Japan. The life history of this species was investigated in Hamana Lake, central Japan. Samples were collected by SCUBA diving at a fixed station and on a monthly basis from 1987 to 1989. On these occasions, we also monitored water temperature, salinity and dissolved oxygen content.

Trochammina hadai lives in the top 1 cm of the sediment throughout the year. Its population density drastically changed from nearly 0 individuals/10cm2 during the summer to 830 individuals/10cm2 in the winter. The change in the density was closely related to the environmental conditions of the lake. Lake water had stagnated during summer, forming a vertical stratification with a bottom layer of low oxygen values and a high concentration of hydrogen sulfide in sediment.

The life cycle of T. hadai is yearly and biphasic. The microspheric generation mainly rises in spring and summer, whereas the megalospheric generation was found mostly in autumn. In the laboratory, higher growth rates were observed in juvenile (58 µm/month) than in adult specimens (34 µm/month).

In both, micro and megalospheric specimens, two morphotypes were distinguished in T. hadai. One type is relatively high trochospiral, has a lobate periphery and 4–5 chambers in the final whorl. The other is low trochospiral, has a smooth periphery and 5–7 chambers in the final whorl. Transitional types produced both morphotypes during different stages of their development. The seasonal change in morphotypes within the same specimen suggests that environmental parameters control the gross morphology in T. hadai.


Bottom Water Benthic Foraminifera Dissolve Oxygen Content Dead Individual Test Diameter 
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  1. Angell, R. W. (1980) Test morphogenesis (chamber formation) in the foraminifer Spiroloculina hyaline Schulze, J. Foram. Res., 10, 89–101.CrossRefGoogle Scholar
  2. Bender, H. and Hemleben, Ch. (1988) Calcitic cement secreted by agglutinated foraminifers grown in laboratory culture, J. Foram. Res., 18, 42–45.CrossRefGoogle Scholar
  3. Bijma, J., Erez, J., and Hemleben, Ch. (1990) Lunar and Semi-Lunar reproductive cycles in some spinose planktonic foraminifers, J. Foram. Res., 20, 117–127.CrossRefGoogle Scholar
  4. Boltovskoy, E. (1966) Depth at which foraminifera can survive in sediments, Contr. Cushman. Found. Foram. Res., 17, 43–45.Google Scholar
  5. Grell, K. G. (1979) Cytogenetic systems and evolution in foraminifera, J. Foram. Res., 9, 1–13.CrossRefGoogle Scholar
  6. Hamanako Branch of the Shizuoka Prefectural Experimental Laboratory for Fisheries (1984–87) Annual reports, 1984–87, Shizuoka Prefecture, Shizuoka, Japan.Google Scholar
  7. Hirano, R. and Okamoto, K. (1980) Studies on population dynamics of red tide organisms in Lake Hamana, Report of Environmental Sciences, B. 148-R14–8, Monbusho, 47–54.Google Scholar
  8. Ikeya, N. (1970) Population ecology of benthonic foraminifera in Ishikari Bay, Hokkaido, Japan, Records of Océanographie Works in Japan, 10, 153–191.Google Scholar
  9. Ikeya, N. (1977) Ecology of foraminifera in the Hamana Lake region on the Pacific coast of Japan, Rep. Fac. Sci., Shizuoka Univ., 11, 131–159.Google Scholar
  10. Ishiwada, Y. (1958) Recent foraminifera from the brackish lake Hamana-ko. Study on the brackish water, 3, Geol. Surv. Japan, Rep., 180, 1–19.Google Scholar
  11. Kitazato, H. (1981) Observation of behavior and mode of life of benthic foraminifers in laboratory, Geosci. Rep., Shizuoka Univ., 6, 61–71.Google Scholar
  12. Langer, M., Hottinger, L., and Huber, B. (1989) Functional morphology in low-diverse benthic foraminiferal assemblages from tidal flats of the North Sea, Senckenbergiana mark., 20, 81–99.Google Scholar
  13. Matera, N.J. and Lee, JJ. (1972) Environmental factors affecting the standing crop of foraminifera in sublittoral and psammolittoral communities of a Long Island salt marsh, Mar. Biol., 14, 89–103.CrossRefGoogle Scholar
  14. Matoba, Y. (1970) Distribution of recent shallow water foraminifera of Matushima Bay, Miyagi Prefecture, Northeast Japan, Sci. Rep. Tohoku Univ., 2nd ser. (Geol.), 42:1–85.Google Scholar
  15. Myers, E. H. (1938) The present state of our knowledge concerning the life cycle of the foraminifera, National Acad. Sci., 24, 10–17.CrossRefGoogle Scholar
  16. Salami, M. B. (1976) Biology of Trochammina cf. T. quadriloba Höglund (1947), an agglutinated foraminifer, J. Foram. Res., 6, 145–153.CrossRefGoogle Scholar
  17. Sliter, W. V. (1965) Laboratory experiments on the life cycle and écologie controls of Rosalinaglobulcais d’Orbigny, J. Protozool. 12, 210–215.Google Scholar
  18. Sliter, W.V. (1968) Shell-material variation in the agglutinated foraminifer Trochamminapacifioa Cushman, Tulane Stud. Geol. Paleontol., 6, 80–84.Google Scholar
  19. Uchio, T. (1962a) Recent foraminifera thanatocoenoses of beach and nearshore sediments along the coast of Wakayama-ken, Japan, Seto Mar. Biol. Lab., Pub., 10, 133–144.Google Scholar
  20. Uchio, T. (1962b) Influence of the River Shinano on foraminifera and sediment grain sizedistribution, Seto Mar. Biol. Lab., Pub., 10, 363–392.Google Scholar
  21. Wang, P. and Lutze, G. F. (1986) Inflated later chambers, ontogenetic changes of some recenthyaline benthic foraminifera, J. Foram. Res., 16, 48–62.CrossRefGoogle Scholar
  22. Watanabe, K., Hino, A., and Hirano, R. (1980) Some observations on 1978 red tide bloomsin Shonai estuary, Shizuoka Prefecture, Bull. Plankton Soc. Japan, 27, 87–98.Google Scholar
  23. Winkler, L. W. (1888) Die Bestimmung des im Wasser gelösten Sauerstoffes, Deut. Chem. Ges. Berlin, 21, 2843–2854.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1990

Authors and Affiliations

  • Satoshi Matsushita
    • 1
  • Hiroshi Kitazato
    • 1
  1. 1.Institute of GeosciencesShizuoka UniversityShizuokaJapan

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