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@inbook{357855,
author = {Brabec, Karel},
address = {Leiden, Netherland},
booktitle = {Bretschko, G. & Helesic, J. (eds.): Advances in River Bottom Ecology.},
keywords = {spatial distribution; benthic macroinvertebrates; community structure; hydroelectric Dam},
language = {eng},
location = {Leiden, Netherland},
isbn = {90 73348},
pages = {249-262},
publisher = {Backhuys Publishers},
title = {Influence of water level fluctuation below dam on the structure of macroinvertebrate community},
year = {1998}
}
TY - CHAP
ID - 357855
AU - Brabec, Karel
PY - 1998
TI - Influence of water level fluctuation below dam on the structure of macroinvertebrate community
PB - Backhuys Publishers
CY - Leiden, Netherland
SN - 90 73348
KW - spatial distribution
KW - benthic macroinvertebrates
KW - community structure
KW - hydroelectric Dam
N2 - The study was aimed at investigating the influence of a reservoir on lotic macroinvertebrates by comparing the upstream conditions with two sites at different distances downstream the dam. Hydropeaking flow regime causes diurnal water level fluctuations resulting in dewatering of part of the stream bed and long-term variability of river flow below the Brno Reservoir. Compared with the stretch above the reservoir, the number of taxa in the downstream stretch, and especially close to the dam release was significantly reduced. A decrease of density in many samples is caused by the extinciton of most insect taxa except chironomids and ceratopogonids. Slightly altered thermal regime, as well as the amelioration of peak-discharge waves by their passing through slackwater pools, is reflected in the structure of the species rich and abundant zoobenthos community 8 km downstream the dam.
ER -
BRABEC, Karel. Influence of water level fluctuation below dam on the structure of macroinvertebrate community. In \textit{Bretschko, G. \&{} Helesic, J. (eds.): Advances in River Bottom Ecology.}. Leiden, Netherland: Backhuys Publishers, 1998, p.~249-262. ISBN~90~73348.
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