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

Aija Brakovska | Zendy; Renāte Škute | Zendy

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

Author(s) -

Aija Brakovska,

Renāte Škute

Publication year - 2015

Publication title -

environment technology resources proceedings of the international scientific and practical conference

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.113

H-Index - 8

eISSN - 2256-070X

pISSN - 1691-5402

DOI - 10.17770/etr2009vol2.1016

Subject(s) - zooplankton , cladocera , environmental science , ecology , hydrology (agriculture) , pollution , oceanography , biology , geology , geotechnical engineering

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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