Acta Univ. Agric. Silvic. Mendelianae Brun. 2021, 69(3), 337-343 | DOI: 10.11118/actaun.2021.031

Potential Factors Limiting Brown Trout Catches by Anglers - A Case Study

Tomáš Zapletal1, Luděk Šlapanský2, Jan Grmela3
1 Faculty of International Relations, Prague University of Economics and Business, W. Churchill sq. 1938/4, 130 67 Prague, Czech Republic
2 Institute of Vertebrate Biology, Brno, Květná 8, 603 65 Brno, Czech Republic
3 Department of Zoology, Fishery, Hydrobiology and Apiculture, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic

In recent years, the numbers of native brown trout caught by anglers has declined throughout the Czech Republic. In this study, we focus on individual factors potentially related to this negative trend, based primarily on long-term angling catch data (2000-2020) for twenty fishing grounds of the Czech and Moravian angling unions covering twelve upland trout streams. The results indicate that angling pressure, expressed as annual number of attendances, is the most important factor in the decline of trout populations, with drought caused by climate change as a secondary factor. There is a clear need for changes in current fisheries management practice, using new sustainable development scenarios, in order to protect and improve unfavourable conditions for natural brown trout populations.

Keywords: Salmo trutta, angling pressure, drought, scenarios

Received: March 24, 2021; Revised: April 26, 2021; Accepted: April 26, 2021; Published: July 1, 2021  Show citation

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Zapletal, T., Šlapanský, L., & Grmela, J. (2021). Potential Factors Limiting Brown Trout Catches by Anglers - A Case Study. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 69(3), 337-343. doi: 10.11118/actaun.2021.031
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