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Selected physical and chemical
factors in the ecotone zones of lakes of
different trophy in the region of Polesie Lubelskie (Estern Poland) |
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Stanisław Radwan, Barbara Stępień, Wiktor Bojar
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Department of Hydrobiology and
Ichtiobiology University of Agriculture
in Lublin, ul. Akademicka 13, 20-950 Lublin,
e-mail: Radwan@ursus.AR.Lublin.pl |
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Abstract:
The studies were carried out in the littoral zone of six lakes differing in trophic and biotic diversity.
These were: L. Piaseczno – the mesotrophic
lake with the well developed psammolittoral, L. Uściwierz – the slightly
eutrophic lake with the psammolittoral
and phytolittoral, the hypertrophic lake L. Głębokie Uścimowskie with the psammolittoral, L. Bikcze and L. Łukie – both
the eutrophic lakes with phytolittoral,
and the dystrophic L. Moszne – with peatbog phytolittoral. During the spring and the summer-autumn seasons in 1996–1997 the physical and chemical composition (temperature, electrolytic conductivity, O2, pH, total water hardness, nitrogen compounds and phosphorus compounds) of water were investigated in the littoral zone in these lakes. |
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Key words: lakes, ecotones, physical and chemical factors |