The phytoplankton of some saline lakes in Central Asia

  • Yoshiko Kawabata
  • Hiroyuki Nakahara
  • Yukio Katayama
  • Norio Ishida
Article

Abstract

The Aral Sea, Lake Balkhash, and Lake Kamyslybas are closed lakes in Central Asia. They range from oligosaline to metasaline. The salinity of the Aral Sea has increased by more than 30 g L−1 since widespread irrigation began in its catchment area. Few studies of the phytoplankton have been conducted on these lakes since extensive irrigation started. The investigation reported here compares the flora of phytoplankton in these saline lakes. In the Small Aral Sea, phytoplankton density gradually decreased with increasing electrical conductivity (EC) (∼ salinity), but there was no such relation in Lake Balkhash and Lake Kamyslybas. In the Aral Sea, Dinophyceae and Bacillariophyceae were frequently observed in most areas of high EC value, and Cyanophyceae were most conspicuous in the area of medium and lower EC values. In Lake Balkhash, Cyanophyceae were most conspicuous, but Chlorophyceae were also noticeable. Most Cyanophyceae in Aral Sea formed filaments with heterocysts. The distinct characteristic of the phytoplankton of the Lake Balkhash was that all dominant species form colonies covered with a gelatinous film. Siliceousplankton diversity gradually decreased with increasing EC values in the Aral Sea and Lake Balkhash.

Key words

Aral Sea Central Asia EC (electrical conductivity) Lake Balkhash Lake Kamyslybas phytoplankton saline lake 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Abrosov, V.N., 1973.Lake Balkhash. Academy of Nauk, Leningrad, 175 pp [In Russian].Google Scholar
  2. Bayly, I.A.E. and Williams, W.D., 1966. Chemical and biological studies on some saline lakes of south-east Australia. Aust. J. Mar. Freshw. Res. 17: 177–228.CrossRefGoogle Scholar
  3. Davydov, N.N. 1991. Diatomic algae in bottom sediments. In: History of Lake Sevan, Issyk-Kul, Balkhash, Zaisan and Aral, Academiya Nauk, Leningrad, pp. 145–151 [In Russian].Google Scholar
  4. De Deckker, P. 1983. Australian, salt lakes: their history, chemistry, and biota — a review. Hydrobiologia 105: 231–244.CrossRefGoogle Scholar
  5. Gell, P.A. and Gasse, F. 1994. Relationships between salinity and diatom flora from some Australian saline lakes. In: Kociolek J.P. (Ed.) Proceedings of 11th Diatom Symposium 1990 (San Francisco, California, USA), pp. 631–647. California Academy of Sciences San Francisco, California.Google Scholar
  6. Hammer, U.T., Shamess, J. and Haynes, R.C. 1983. The distribution and abundance of algae in saline lakes of Saskatchewan, Canada. Hydrobiologia 105: 1–26.CrossRefGoogle Scholar
  7. Kawabata, Y., Nakahara, H., Nishimura, K., Ishida, N., Maeda, H., Katayama, Y., and Tsukatani, T. 1995. Aral Sea desertification caused by irrigation and its effects on water quality. Journal of Arid Land Studies 5S: 255–258.Google Scholar
  8. Krammer, K. and Longe-Bertalot, H. 1986–1991. Bacillariophyceae. Süßwasserflora von Mitteleuropa 2 (1–4), Gustav Fischer Verlag, Stuttgart.Google Scholar
  9. Kwandrans, J. 1994. Benthic diatom communities in two acidic mountain lakes (Sudeten Mts, Poland). In: D. Marino and M. Montresor (Eds.) Proceedings of Thirteenth International Diatom Symposium (Matatea, Italy), pp. 281–293. Biopress Limited, Bristol.Google Scholar
  10. Micklin, P.P. 1988. Desiccation of the Aral Sea: A water management disaster in the Soviet Union. Science 241: 1170–1176.Google Scholar
  11. Verzilin, N.N., Pozdnyakova, G.V., Skopeljas, I.I., and Suslov, G.A., 1991. Lake changes due to anthropogenic causes. In: History of Lake Sevan, Issyk-Kul, Balkhash, Zaisan, and Aral, Academiya Nauk, Leningrad, pp. 169–172 [In Russian].Google Scholar
  12. Venus, B.G. and Pozdynakova, G.V. 1991. Natural features of the lakes and its basin. In: History of Lake Sevan, Issyk-Kul, Balkhash, Zaisan, and Aral, Academiya Nauk, Leningrad, pp. 119–123 [In Russian].Google Scholar
  13. Wright, S.W. and Burton, H.R. 1981. The biology of Antarctic saline lakes. Hydrobiologia 82: 319–338.CrossRefGoogle Scholar
  14. Zhakovshchikoy, T.K. 1981. Diatomic algae in a column of bottom's deposits from Aral Sea. Diatomic algae 1981: 102–117 [In Russian].Google Scholar

Copyright information

© Kluwer Academic Publishers 1997

Authors and Affiliations

  • Yoshiko Kawabata
    • 1
  • Hiroyuki Nakahara
    • 1
  • Yukio Katayama
    • 1
  • Norio Ishida
    • 1
  1. 1.Graduate School of AgricultureKyoto UniversityKyotoJapan

Personalised recommendations