Recent distribution, population densities and ecological requirements of the stone crayfish (Austropotamobius torrentium) in the Czech Republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23420%2F10%3A00504644" target="_blank" >RIV/49777513:23420/10:00504644 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Recent distribution, population densities and ecological requirements of the stone crayfish (Austropotamobius torrentium) in the Czech Republic

Popis výsledku v původním jazyce

The stone crayfish Austropotamobius torrentium (Schrank) is one of five species of crayfish inhabiting waters in the Czech Republic, usually occupying small and medium-sized streams. The stone crayfish is protected by national and European laws. At present, stone crayfish are known to occur in 41 streams in the Czech Republic. For each of these streams, we measured the population density, sex ratio and age structure of the stone crayfish populations. The average population density varied between 0.3? 4.72 spms m-2, with a maximum estimated population density at some sites reaching 8.6 spms m-2. The sex ratio was evaluated only in abundant populations (> 0.5 spms m-2) and it did not significantly vary from the expected rate of 0.5 (0.3-0.72).

Název v anglickém jazyce

Recent distribution, population densities and ecological requirements of the stone crayfish (Austropotamobius torrentium) in the Czech Republic

Popis výsledku anglicky

The stone crayfish Austropotamobius torrentium (Schrank) is one of five species of crayfish inhabiting waters in the Czech Republic, usually occupying small and medium-sized streams. The stone crayfish is protected by national and European laws. At present, stone crayfish are known to occur in 41 streams in the Czech Republic. For each of these streams, we measured the population density, sex ratio and age structure of the stone crayfish populations. The average population density varied between 0.3? 4.72 spms m-2, with a maximum estimated population density at some sites reaching 8.6 spms m-2. The sex ratio was evaluated only in abundant populations (> 0.5 spms m-2) and it did not significantly vary from the expected rate of 0.5 (0.3-0.72).

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2010

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

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Svazek periodika

83

Číslo periodika v rámci svazku

394-395

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

10

Strana od-do

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Kód UT WoS článku

000280166500013

EID výsledku v databázi Scopus

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