Advertisement

Hydrobiologia

, 568:225 | Cite as

Cnidarian fauna of relict Lakes Baikal, Biwa and Khubsugul

  • S. D. Stepanjants
  • B. A. Anokhin
  • V. G. Kuznetsova
Article

Abstract

In relict Lakes Baikal, Biwa and Khubsugul three orders: Hydrida, Athecata and Limnomedusa (?) of the class Hydrozoa were found. In Lake Baikal, only representatives of Hydrida, such as Pelmathohydra baikalensis (endemic of Lake Baikal), P. oligactis and Hydra circumcincta were found (the last two species had not been found there before. Recent studies of the phylum Cnidaria in Lake Biwa showed the presence of Pelmatohydra oligactis and a representative of the family Clavidae which has been treated as a new species, Pachycordyle kubotai. In Lake Khubsugul a single representative of Hydrida has been found so far which is suggested to represent a new species of Pelmatohydra. According to techniques described earlier air-dried chromosome slides were prepared. The karyotype of P. kubotai were studied using conventional chromosome staining (by 6–10% Giemsa in the Sørensen’s buffer, pH 6.8), whereas karyotype of P. baikalensis was studied using conventional and C-banding techniques. C-banding to reveal highly repeated DNA followed the protocol by Sumner (1972).

Keywords

Cnidaria relict lakes Baikal Biwa Khubsugul taxonomy morphology karyotypes 

References

  1. Anokhin B. A. (2002) Redescription of the endemic Baikalian species Pelmatohydra baikalensis (Cnidaria: Hydrozoa, Hydrida, Hydridae) and assessment of the hydra fauna of Lake Baikal. Ann. Zool. 52: 475–481.Google Scholar
  2. Anokhin B. A., Kuznetsova V. G. (1999) Chromosome morphology and banding patterns in Hydra oligactis Pallas and H. circumcincta Schulze (Hydroidea, Hydrida). Folia Biol. (Krakow) 47: 91–96.Google Scholar
  3. Campbell R. D. (1999) The Hydra of Madagascar (Cnidaria: Hydrozoa). Ann. Limnol. 35: 95–104.CrossRefGoogle Scholar
  4. Holstein, T., 1995. Cnidaria: Hydrozoa. In: Susswasserfauna von Mitteleuropa. Gustav Fisher Verlag. Stuttgart, Jena, NY.1/2 + 3: 110 pp.Google Scholar
  5. Negoro, K., 1982. The plankton of Lake Biwa. The Shiga Prefectural Institute of Public Health and Environmental Science.Google Scholar
  6. Schulze P. (1927) Zur Kenntns und geographischen Verbreitung der Susswasserpoplypen. Zool. Anz. 74: 129–141.Google Scholar
  7. Stepanjants, S. D., 1994. Cnidaria. in Key to Freshwater Invertebrates of Russia and Adjacent Lands. Vol. 1. The Low Invertebrate. St.Petersburg: 12–16: 162–169 (in Russian).Google Scholar
  8. Stepanjants, S. D. & B. A. Anokhin, 2001. Hydrida (Cnidaria:Hydrozoa). In: Lake Baikal and Its Catchment Area: In 2 volumes – Novosibirsk: Nauka. Vol. 1: Lake Baikal, Book 1 – 432 p – (Guides and Keys to Identification of Fauna and Flora of Lake Baikal); chapter 2: 192–194 (in Russian).Google Scholar
  9. Stepanjants S. D., Anokhin B. A., Kuznetsova V. G. (2000a) Hydrida composition and place in the System of Hydroidea (Cnidaria: Hydrozoa). Trudi Zool. Inst. Ross. Akad. Nauk 286: 155–102.Google Scholar
  10. Stepanjants, S. D., A. O. Timoshkin, B. A. Anokhin & T. O. Napara, 2000b. A New Species of Pachycordyle (Hydrozoa, Clavidae) from Lake Biwa (Japan), with Remarks on this and Related Clavid Genera. In: Mills, C.E., F. Boero, A. Migotto & J. M. Gili (eds), Trends in Hydrozoan Biology – IV. Sci. Mar. 64: 225–236.Google Scholar
  11. Sumner A. T. (1972) A simple technique for demonstrating centromere heterochromatin. Cell. Res. 75: 304–306.CrossRefGoogle Scholar
  12. Swarczewsky, B., 1923. Sketches about Hydraria. Proc. Professors & Teachers Irkutsk Univ. 4: 9–102 (in Russian).Google Scholar

Copyright information

© Springer 2006

Authors and Affiliations

  • S. D. Stepanjants
    • 1
  • B. A. Anokhin
    • 1
  • V. G. Kuznetsova
    • 1
  1. 1.Zoological InstituteRussian Academy of SciencesSt. PetersburgRussia

Personalised recommendations