Habitat degradation and trout stocking can reinforce the impact of flash flood on headwater specialist Alpine bullhead Cottus pecilopus – a case study from the Carpathian Mountains

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73592022" target="_blank" >RIV/61989592:15310/18:73592022 - isvavai.cz</a>

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/full/10.1111/jai.13682" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1111/jai.13682</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jai.13682" target="_blank" >10.1111/jai.13682</a>

Result language

angličtina

Original language name

Habitat degradation and trout stocking can reinforce the impact of flash flood on headwater specialist Alpine bullhead Cottus pecilopus – a case study from the Carpathian Mountains

Original language description

In freshwater streams, flooding is a typical source of natural disturbance that plays a key role in the dynamics of animal populations and communities. However, habitat degradation and fish stocking might increase the severity of its impact. We tested the effects of a flash flood on the abundance of three size classes of headwater dwelling Alpine bullhead, Cottus poecilopus, in the streams of the Carpathian Mountains in the Czech Republic, that are stocked with hatchery-reared brown trout, Salmo trutta. We showed that the overall abundance of Alpine bullhead was highest at the sites with the least degraded habitat (i.e., natural habitat) and we caught almost no Alpine bullhead at the sites with the most degraded habitat. The flash flood had a strong negative effect on the abundance of the largest individuals of Alpine bullhead. Abundance of small and medium size Alpine bullhead was negatively affected by the abundance of adult stocked brown trout before as well as after the flash flood. However, negative effect of adult brown trout abundance on abundance of large Alpine bullhead was not significant before the flash flood, and it became significant after the flash flood. This could indicate an accumulation of negative impacts of trout stocking and flash flood on this size class. Overall, our results suggest that stocking of hatchery trout and habitat degradation can reinforce the impact of flash floods on the population of Alpine bullhead in the streams of the Carpathian Mountains.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10617 - Marine biology, freshwater biology, limnology

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

JOURNAL OF APPLIED ICHTHYOLOGY

ISSN

0175-8659

e-ISSN

—

Volume of the periodical

34

Issue of the periodical within the volume

4

Country of publishing house

DE - GERMANY

Number of pages

9

Pages from-to

825-833

UT code for WoS article

000439931500005

EID of the result in the Scopus database

2-s2.0-85043478411