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Research project (§ 26 & § 27)
Duration : 2021-01-01 - 2021-12-31

The Vienna River, is the most important Danube tributary in the area of the city of Vienna. The originally winding and branched course of the river, as well as its proximity to the Danube, suggests that the biodiversity of the fish fauna of the Vienna River was characterized by the migration of many fish species (e.g. for spawning) from the Danube. For example, cyprinid fish such as the nase (Chondrostoma nasus), a typical Danube fish species, enriched the species diversity. In the course of climate change, a more extensive shift in the fish region must be expected. Cyprinid fish such as the nase will expand further and further into the upper reaches, pushing back cold-water-loving fish such as the brown trout. However, even now, the seasonal water temperature pattern of the Vienna River resembles that of barbel-region rivers. However, the nase is completely absent in the Vienna River, although there are attractive habitats with high fish ecological importance in the area near Auhof. Thus, it can be assumed that several migration obstacles in the Vienna River are the main reasons why typical Danube fish species like the nase are not found in the Vienna River today, although the climate-induced shift of fish regions would favor their dispersal. However, if medium-distance migrants like the nase could ascend into the Vienna River near Auhof, they would in any case encounter a potentially suitable habitat. However, it is currently unclear whether the nase would spawn in the Vienna River and become established there in the longer term. Thus, this project aims at investigating how the nase behaves when transported across the transverse structures near the Urania into the Vienna River at Auhof. The two central research questions are: (1) Do nase find suitable spawning sites in the Vienna River? (2) Does the nase find suitable shelters in the Vienna River (after spawning) or does it migrate back into the Danube?
Research project (§ 26 & § 27)
Duration : 2021-03-15 - 2022-03-14

Like many rivers, the river March and its floodplains have been used for centuries. This was accompanied by changes in abiotic and biotic processes. Human influence on the river-floodplain ecosystem increased since industrialization in the 19th century. Despite this, valuable floodplain zones with high biodiversity have been preserved in several sections of the March river. Such a section can be found in the area of the WWF floodplain reserve Marchegg. Here, renaturation projects have been implemented for many years to ensure the survival of animal and plant populations in the 21st century. The aim of this project is to investigate the ecological development of the Morava and the Morava floodplains as well as their social use in the area of the WWF floodplain reserve since the 18th century and to prepare it graphically as well as textually. The results will show how much the river March and its floodplains have been changed in and around the commune Marchegg. They will serve as a basis for an exhibition, but also for the planning of future management measures.
Research project (§ 26 & § 27)
Duration : 2021-03-01 - 2023-05-30

ECOPROF is an Austrian software tool for the management and evaluation of water ecological data (macrozoobenthos, phytobenthos), as well as for water assessment according to the WFD. The software was developed by the Institute of Hydrobiology and Ecosystem Management on behalf of the BMNT and is now to be converted from the desktop version to an online version. The project comprises various modules, from the professional conception to the implementation of the technical calculation methods.

Supervised Theses and Dissertations