Research


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Research project (§ 26 & § 27)
Duration : 2018-09-26 - 2020-01-31

The Austrian Strategy for promoting national aquaculture aims for an increase of self-sufficiency in the production of freshwater fish. Consequently, it is essential to know the limits of future aquaculture potential in Austria. Currently, there is no standardized method to assess the sustainable production limit. Therefore, aquaTool aims for the development of a suitable method to assess the aquaculture potential in Austria (especially for trout farming) under consideration of natural conditions, existing uses and legal frameworks. Within this project, a methodical procedure to assess, combine and analyse natural conditions including water availability, water quality, and space availability, potential conflicts with existing uses and/or the aim of sustainable water use (e.g. water conservation and environmental protection) will be developed, to estimate the limits of additional aquaculture production in Austria. While aquaTool aims for the development of the basic methodology, the developed procedure will then be tested and applied in the parallel project aquaNovum (Research project to assess the aquaculture project in Austria”; funded by the European Maritime and Fisheries Fund), to assess the limits of sustainable aquaculture production in Austria under consideration of different scenarios.
Research project (§ 26 & § 27)
Duration : 2018-08-01 - 2019-07-31

The production of macrophytes in the Alte Donau in 2018 raised massively due to the late ice-covering in the beginning of the year and high temperatures and insolation in early spring. A high abundance of submerged vegetation leads to higher photosynthesis activity and furthermore to increasing pH-values. The pH-values of Alte Donau reached 9 during a longer timeperiod, what can influence fish health. The monitoring in 2018 will review the condition factors of most common fish species in the Alte Donau - an important indicator for fish vitality. Fish for this investigation will be evaluated by netfishing and to cover the abundances specified spots will be sampled by electrofishing.
Research project (§ 26 & § 27)
Duration : 2018-09-17 - 2019-09-16

The study investigates the long-term development of fish stocks in the River Salza between the Gschödringgraben and the Prescenyklasue. Using two survey methods, up-to-date fish stock data are collected and analyzed. Apart from the description of the stock development the focus of the analysis is put on questions concerning the increased occurrence of piscivorous predators in Austrian water bodies and also on the effects of the proliferative kidney disease (PKD).

Supervised Theses and Dissertations