Type of Publication: | Journal article |
Publication status: | Published |
Author: | Ostendorp, Wolfgang; Hofmann, Hilmar; Teufel, Lisa; Miler, Oliver |
Year of publication: | 2020 |
Published in: | Hydrobiologia ; 847 (2020), 2. - pp. 365-389. - Springer Science and Business Media. - ISSN 0018-8158. - eISSN 1573-5117 |
DOI (citable link): | https://dx.doi.org/10.1007/s10750-019-04099-8 |
Summary: |
The littoral zones of many Central European lakes are severely altered by lake-side retaining walls. These are suspected to impair littoral biota due to the reflection of incoming wave energy. We conducted a comparative study (armoured shore with a retaining wall and a restored shore with a wedge-shaped cobble embankment vs. a pristine shore) at a wind-exposed shore section of Lake Constance. The retaining wall had a number of significant remote effects on the littoral zone, i.e. increased near-bottom current velocities, higher bed-load transport rates, coarsening of surface sediments, reduction in phytomass density, reduction in total densities and number of taxa of macroinvertebrates as well as a significant decline in the percentages of Limnomysis benedeni Czerniavsky, 1882, Ostracoda, Corbicula fluminea O.F. Müller, 1774, Dreissenapolymorpha (Pallas, 1771) and other Bivalvia. However, the significantly affected zone had a rather narrow width of ~ 3 m. Shore restoration measures are needed to remediate negative effects of retaining walls and re-establish ecological conditions that are comparable to those of pristine shores. We recommend a more site sensitive sampling strategy, e.g. for macroinvertebrates in context with the ecological quality assessment under the European Water Framework Directive.
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Subject (DDC): | 570 Biosciences, Biology |
Keywords: | European Water Framework Directive, Hydromorphology, Shore restoration, Shore reinforcement, Wave exposure |
Bibliography of Konstanz: | Yes |
Refereed: | Yes |
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OSTENDORP, Wolfgang, Hilmar HOFMANN, Lisa TEUFEL, Oliver MILER, 2020. Effects of a retaining wall and an artificial embankment on nearshore littoral habitats and biota in a large Alpine lake. In: Hydrobiologia. Springer Science and Business Media. 847(2), pp. 365-389. ISSN 0018-8158. eISSN 1573-5117. Available under: doi: 10.1007/s10750-019-04099-8
@article{Ostendorp2020-01Effec-47664, title={Effects of a retaining wall and an artificial embankment on nearshore littoral habitats and biota in a large Alpine lake}, year={2020}, doi={10.1007/s10750-019-04099-8}, number={2}, volume={847}, issn={0018-8158}, journal={Hydrobiologia}, pages={365--389}, author={Ostendorp, Wolfgang and Hofmann, Hilmar and Teufel, Lisa and Miler, Oliver} }
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