Abstract
From 1993 to 2014 extensive investigations of the macrophyte vegetation in the Alte Donau were carried out. They included a yearly detailed mapping of water vegetation as well as periodical surveys of the submerged plant biomass. At the beginning of the investigations, an enormous decrease of the macrophyte vegetation could be registered compared to previous studies. The breakdown of the macrophyte vegetation was caused by the poor water quality at that time and reached its climax in 1995 when the Alte Donau was nearly free from macrophytes. To improve the situation a set of management measures was realized by order of the city of Vienna. This study shows the response of the macrophyte vegetation with regards to the development of the submerged biomass as well as to the observed changes in species composition.
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Acknowledgments
This study was funded by the City of Vienna, Municipal Department 45 (Water Management). We would like to thank for permission of publication. Thanks furthermore to the team of the systema company, namely Veronika and Stefan Mayerhofer, Gregor Hoheneder, Irene Teubner and Sascha Pall.
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Pall, K. (2018). Wax and Wane of Macrophytes. In: Dokulil, M., Donabaum, K., Teubner, K. (eds) The Alte Donau: Successful Restoration and Sustainable Management. Aquatic Ecology Series, vol 10. Springer, Cham. https://doi.org/10.1007/978-3-319-93270-5_8
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DOI: https://doi.org/10.1007/978-3-319-93270-5_8
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