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vol. 1, nr. 3 (2003)
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Water bugs (Heteroptera aquatica) as an indicator of ecological state of running watres (preliminary studies)
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Wojciech Płaska
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vol. 1 (2003), nr. 3,
pp. 493-499
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abstract:
Studies were made in River Wieprz, its tributary River Świnka and in the channel leading saline waters to River Świnka. Samples were taken in the year 2002, monthly from April to November. Sample sites were marked both below and above potential pollution sources, on current and on the bank area. On the studied area to the River Świnka were brought saline waters from coal mine in Bogdanka and purified domestic sewage from Łęczna. The species structure of water bugs in studied rivers, especially the share of aerobic species (Aphelocheirus aestivalis, Micronecta griseola) was changed with the increase of water pollution. A. aestivalis and M. griseola were dominated in River Wieprz. In River Świnka was noted the high abundance of A. aestivalis, while in the channel waters species richness was low with domination of eurytopic species. It gives an evidence about the influence of mining waters and habitat complexity on the presence of sensitive species and dominance structure and abundance of Heteroptera.
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keywords:
water bugs, running waters, ecological state, saline waters, domestic sewage
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original in:
Polish
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