ECOLOGICAL EVALUATION OF ZOOPLANKTON GROUPS IN LAKE GERANIMOVAS-ILZAS AND LAKE GARAIS

Authors

  • Aija Brakovska Daugavpils University
  • Renāte Škute Daugavpils University

DOI:

https://doi.org/10.17770/etr2009vol2.1016

Keywords:

Lake Garais, Lake Geranimovas-Ilzas, Renkonen index, Sorensen index, physical and chemical parameters

Abstract

Lake Garais is the second deepest lake in Latvia. Its maximum depth is 56.0 meters, but its average depth is 16.5 meters. Lake Geranimovas-Ilzas is the fifth deepest lake in Latvia. Its maximum depth is 46.0 meters, but its average depth is 9.8 meters [13]. During the research of Lake Gernimovas-Ilzas and Lake Garais three zooplankton groups have been found, i.e. Rotatoria, Cladocera and Copepoda. Having analysed the quality composition of species the authors have concluded that the pollution level of these lakes is low, because there are such olygosoprobic zooplankton species as Keratella cochlearis, Keratella quadrata, Filinia longiseta, that die from lack of oxygen in few hours.

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Author Biographies

  • Aija Brakovska, Daugavpils University
    Institute of Ecology
  • Renāte Škute, Daugavpils University
    Institute of Ecology

References

Cimdiņš P. Limnoekoloģija. Rīga, Mācību grāmata. 2001. 159 lpp.

Eipurs I. Garais ezers. Latvijas daba, 2.sēj. Rīga, Latvijas enciklopēdija. 1995. 89 lpp.

Eipurs I. Geraņimovas-Ilzas ezers. Latvijas daba, 2.sēj. Rīga, Latvijas enciklopēdija. 1995. 106 lpp.

Glazačeva L. Latvijas ezeri un ūdenskrātuves. Jelgava, 2004. 218 lpp.

Introduction to the copepoda. Backhuys Publishers, Leiden, 2001. 344 p.

Krauter D., Streble H. Das Leben im Wassertropfen. Mikroflora und Mikrofauna des Süßwassers Ein Bestimmugsbuch. Kosmos. 1988. 429 p.

Scourfield D.J., Harding J.P. A key to the British Freshwater Cladocera. Freshwater Biological Association Scientific Publication No.5. 1994. 61 p.

Sloka N. Latvijas PSR dzīvnieku noteicējs. Latvijas kladoceru fauna un noteicējs. Rīga: LVU, 1981. 146 lpp.

Sorensen T. A method of establishing groups of equal amplitude in plant sociology based on similarity of species content and its application to analyses of the vegetation on Danish commons. Kong. Danish Vidensk. Selsk. Biol. Skr. (Copenhagen) 1948. 5:1-34 p.

Pontin R.M. A key to the freshwater planctonic and semi-planktonic Rotifera of the British Isles. Freshwater Biological Association Scientific Publication No.38. 1978. 178 p.

Renkonen O. Statisch-okologische Untersuchungen uber die terrestiche kaferwelt der finnischen bruchmoore. Ann. Zool. Soc. Bot. Fenn. Vanamo, 1938. 6:1-231 p.

Кутикова Л. А. Каловратки фауны СССР. Ленинград: Наука, 1970. 74 c.

www.vdc2.vdc.lv

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Published

2015-08-03

How to Cite

[1]
A. Brakovska and R. Škute, “ECOLOGICAL EVALUATION OF ZOOPLANKTON GROUPS IN LAKE GERANIMOVAS-ILZAS AND LAKE GARAIS”, ETR, vol. 2, pp. 43–50, Aug. 2015, doi: 10.17770/etr2009vol2.1016.