Holistic (multiscale) analysis of the factors and their effect on the fish fauna in inner-Alpine space

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  • Project duration: August 2017 - June 2021
  • Funding:
    Italy-Austria 2014-2020 (EUTC / EU funding / Project)

River ecosystems are strongly influenced by landform and human activities within the surrounding valley at multiple scales. Most rivers are  contaminated by a combination of different interventions, leading to a dramatic change in the aquatic habitat and the organism community. Fish are an established biological indicator in the European Union. Through information about species assemblage, abundance, dominance and population structure it is possible to make reliable predictions about the whole river ecosystem. The dramatic change within the fish fauna in Tyrol
and South Tyrol become evident through the local decline of populations, the threat of fish stocks and the disappearance of species. An additional threat is the loss of the genetic integrity due to stocking activities with non native species. This, too, can lead to the loss of autochthonous species. In contrast to most of the previous research where only individual originators were examined, in this project we will determine the influence of (as far as possible) all influence factors and make them visible through geostatistic and multiscale models. We plan on incorporating the gained findings into river management plans, which can be used to influence future decisions on environmental protection.

A methodical approach to analyze the effect of river morphology and hydrology on fish fauna in the inner-Alpine space
Schmölz K, Felber A, Mark W, Thaler M, Wieser J, Persiano S, Bertoldi G, and Tasser E (2021)

Conference: EGU General Assembly 2021 | Vienna | 19.4.2021 - 30.7.2021

Untersuchung der Einflussfaktoren und ihre Wirkung auf die Fischfauna im inneralpinen Raum
Tasser E, Schmölz K, Wieser J, Mark W (2021)
Journal article
The impact of land use and landform in the watershed of rivers on the fish fauna
Schmölz K, Bottarin R, Mark W, Pelster B, Wieser J, Tasser E (2021)

Conference: Workshop des Arbeitskreis Landschaftsforschung ‘Zwischen Individualität und Repräsentativität| Erfassung & Bewertung von Landschaften‘ | Höxter, Online : 7.4.2021 - 7.4.2021

ALFFA - Holistic (multiscale) analysis of the factors and their effect on the fish fauna in inner-Alpine space
Oberarzbacher S, Bottarin R, Mark W, Pelster B, Niederwanger M, Wieser J, Tasser E (2018)
ALFFA - Holistic (multiscale) analysis of the factors and their effect on the fish fauna in inner-Alpine space
Mark W, Tasser E, Bottarin R, Oberarzbacher S, Pelster B, Pichler B, Wieser J (2017)
Bachsaibling adieu!? Fischerverein Prettau
Tasser E, Widmann F (2016)
Journal article
Tauernfenster: Mitteilungsblatt der Gemeinde Prettau
Our partners

Research Centre for Agriculture and Forestry

Association for Environmental Studies - Austria

Bundeswasserbauverwaltung Tirol, Baubezirksamt Reutte

Fisheries association of South Tyrol

Tyrolean fisheries association

Agency province domain - Bozen

Tiroler Landesregierung - Abteilung Umweltschutz

Landesregierung Tirol - Abt. Wasserwirtschaft, SG Schutzwasserwirtschaft und Gewässerökologie

Landesregierung Tirol - Abt. Landwirtschaftliches Schulwesen, Jagd und Fischerei

Tiroler Wasserkraft AG

Umbrella association for nature and environmental protection in South Tyrol

Projekt Alffa: Fischpopulationen und Gewässergüte im Alpenraum

Project Team
1 - 7

Katja Gerlinde Schmölz

Vice Manager

Katja Gerlinde Schmölz

Team Member

Stefano Della Chiesa

Team Member


1 - 5

Biodiversity Monitoring South Tyrol

Biodiversity Monitoring South Tyrol

Duration: December 2018 - January 2022Funding:
Internal funding EURAC (Project)

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Institute's Projects

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Eurac Research is a private research center based in Bolzano (South Tyrol) with researchers from a wide variety of scientific fields who come from all over the globe. Together, through scientific knowledge and research, they share the goal of shaping the future.

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Our research addresses the greatest challenges facing us in the future: people need health, energy, well-functioning political and social systems and an intact environment. These are complex questions, and we are seeking the answers in the interaction between many different disciplines. In so doing, our research work embraces three major themes: regions fit for living in, diversity as a life-enhancing feature, a healthy society.

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