<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>While approaches for assessing the impact of invasive species are advancing, fundamental autoecological information such as feeding preferences is often unavailable for many invasive species. The European catfish, <italic>Silurus glanis</italic>, is a well-known, high-impact invasive predator; however, there remain considerable gaps in knowledge about its feeding preferences and biotic interactions that limit ecological impact predictions for this predator. This study is an investigation of seasonal variability in this predator’s diet during the juvenile life stage using the Arno River, Italy as a model system. This study identified significant differences across seasons, provided further information on the dietary spectrum of this species, and raised important questions for further study.</p>
</abstract>

While approaches for assessing the impact of invasive species are advancing, fundamental autoecological information such as feeding preferences is often unavailable for many invasive species. The European catfish, Silurus glanis, is a well-known, high-impact invasive predator; however, there remain considerable gaps in knowledge about its feeding preferences and biotic interactions that limit ecological impact predictions for this predator. This study is an investigation of seasonal variability in this predator’s diet during the juvenile life stage using the Arno River, Italy as a model system. This study identified significant differences across seasons, provided further information on the dietary spectrum of this species, and raised important questions for further study.

Seasonal variability in the diet of juvenile European catfish, <italic>Silurus glanis</italic>, in the Arno River (Italy) in Florence

Department of River Ecology and Conservation

University of South Bohemia in České Budějovice

Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses

Fisheries & Aquatic Life

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Seasonal variability in the diet of juvenile European catfish, , in the Arno River (Italy) in Florence

While approaches for assessing the impact of invasive species are advancing, fundamental autoecological information such as feeding preferences is often...

Seasonal variability in the diet of juvenile European catfish, Silurus glanis, in the Arno River (Italy) in Florence

Published Online: May 26, 2021

Page range: 54 - 61

Received: Nov 03, 2020

Accepted: Mar 11, 2021

DOI: https://doi.org/10.2478/aopf-2021-0007

Keywords
dietary analysis, stomach contents, invasive species

© 2021 Phillip J. Haubrock, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Seasonal variability in the diet of juvenile European catfish, Silurus glanis, in the Arno River (Italy) in Florence

Published Online: May 26, 2021

Page range: 54 - 61

Received: Nov 03, 2020

Accepted: Mar 11, 2021

DOI: https://doi.org/10.2478/aopf-2021-0007

Keywordsdietary analysis, stomach contents, invasive species

© 2021 Phillip J. Haubrock, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
dietary analysis, stomach contents, invasive species