Feeding habits of the alien brook trout Salvelinus fontinalis and the native brown trout Salmo trutta in Czech mountain streams

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F17%3A74828" target="_blank" >RIV/60460709:41210/17:74828 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/17:10359896

Výsledek na webu

<a href="http://dx.doi.org/10.1051/kmae/2016038" target="_blank" >http://dx.doi.org/10.1051/kmae/2016038</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/kmae/2016038" target="_blank" >10.1051/kmae/2016038</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Feeding habits of the alien brook trout Salvelinus fontinalis and the native brown trout Salmo trutta in Czech mountain streams

Popis výsledku v původním jazyce

Quantifying patterns of prey resource use is fundamental to identify mechanisms enabling the coexistence of related fish species. Trophic interactions between the native brown trout, Salmo trutta, and the introduced brook trout, Salvelinus fontinalis, were studied monthly from May to October in three mountain streams in Central Europe (Czech Republic). To evaluate whether the feeding habits differ between separated and coexisting populations of these species, one locality where both species coexist, and two allopatric populations of either species were studied. Across the study period, the mean stomach fullness of fish varied, being highest in spring and declining through autumn. The diet overlap (Schoener overlap index) between the species increased through the studied season (from 54,5 in July to 81,5 in October). In allopatry, both species had nearly the same feeding habits. However, in sympatry, brook trout consumed higher proportion of terrestrial invertebrates, while brown trout showed no chang

Název v anglickém jazyce

Feeding habits of the alien brook trout Salvelinus fontinalis and the native brown trout Salmo trutta in Czech mountain streams

Popis výsledku anglicky

Quantifying patterns of prey resource use is fundamental to identify mechanisms enabling the coexistence of related fish species. Trophic interactions between the native brown trout, Salmo trutta, and the introduced brook trout, Salvelinus fontinalis, were studied monthly from May to October in three mountain streams in Central Europe (Czech Republic). To evaluate whether the feeding habits differ between separated and coexisting populations of these species, one locality where both species coexist, and two allopatric populations of either species were studied. Across the study period, the mean stomach fullness of fish varied, being highest in spring and declining through autumn. The diet overlap (Schoener overlap index) between the species increased through the studied season (from 54,5 in July to 81,5 in October). In allopatry, both species had nearly the same feeding habits. However, in sympatry, brook trout consumed higher proportion of terrestrial invertebrates, while brown trout showed no chang

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40103 - Fishery

Projekt

<a href="/cs/project/GA16-06498S" target="_blank" >GA16-06498S: Psychoaktivní látky ve vodním prostředí a jejich vliv na exponované organismy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Knowledge and Management of Aquatic Ecosystems

ISSN

1961-9502

e-ISSN

—

Svazek periodika

N

Číslo periodika v rámci svazku

418

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

000399051100006

EID výsledku v databázi Scopus

2-s2.0-85011844280