<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The aim of the paper was to investigate the impact of the eutrophic dam reservoir on the fauna of Trichoptera of the mediumsized River Bystrzyca in the area of the Lublin Upland. Material collected at three sites above and three sites below the reservoir was analyzed with respect to: species composition and diversity, dominance and trophic structures, essential physical and chemical parameters of water, both at the species as well as assemblage level. The obtained results indicated the unfavorable influence of the reservoir on Trichoptera which was expressed by the decrease in the number of species and diversity below the dam, the disturbances of dominance and trophic structures as well as the increase in the number of specimens of the species insensitive to pollution. The more detailed characteristic of the representatives of the family Hydropsychidae is also given - their distribution and preferences against habitat conditions in the arrangement: river-reservoir-river.</p></abstract>

The aim of the paper was to investigate the impact of the eutrophic dam reservoir on the fauna of Trichoptera of the mediumsized River Bystrzyca in the area of the Lublin Upland. Material collected at three sites above and three sites below the reservoir was analyzed with respect to: species composition and diversity, dominance and trophic structures, essential physical and chemical parameters of water, both at the species as well as assemblage level. The obtained results indicated the unfavorable influence of the reservoir on Trichoptera which was expressed by the decrease in the number of species and diversity below the dam, the disturbances of dominance and trophic structures as well as the increase in the number of specimens of the species insensitive to pollution. The more detailed characteristic of the representatives of the family Hydropsychidae is also given - their distribution and preferences against habitat conditions in the arrangement: river-reservoir-river.

The influence of a dam reservoir on caddisflies (Trichoptera) of an upland river on the example of the River Bystrzyca (south-eastern Poland) / Wpływ zbiornika zaporowego na chruściki (Trichoptera) rzeki wyżynnej na przykładzie Bystrzycy (południowo-wschodnia Polska)

Department of Zoology, Animal Ecology and Wildlife Management, Faculty of Biology and Animal Breeding, University of Life Sciences in Lublin, Akademicka 13 St, 20-950 Lublin

Environmental Protection and Natural Resources

The aim of the paper was to investigate the impact of the eutrophic dam reservoir on the fauna of Trichoptera of the mediumsized River Bystrzyca in the area of...

The influence of a dam reservoir on caddisflies (Trichoptera) of an upland river on the example of the River Bystrzyca (south-eastern Poland) / Wpływ zbiornika zaporowego na chruściki (Trichoptera) rzeki wyżynnej na przykładzie Bystrzycy (południowo-wschodnia Polska)

Published Online: May 30, 2013

Page range: 17 - 22

DOI: https://doi.org/10.2478/oszn-2013-0006

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