Seasonal migrations of introduced Orconectes limosus (Rafinesque) to a small tributary of a large river

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F10%3A43886664" target="_blank" >RIV/60076658:12520/10:43886664 - 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

Seasonal migrations of introduced Orconectes limosus (Rafinesque) to a small tributary of a large river

Popis výsledku v původním jazyce

A seasonal migration of introduced Orconectes limosus (Rafinesque) between a brook and reservoir was observed in a small tributary of a large reservoir in southwest Czech Republic that was identified as suitable habitat for indigenous crayfish. Sixteen capture events (between April 2007 and October 2008) and one radio-telemetry study (from October to November 2007) were conducted. A significant trend of downstream migration to the reservoir was found in autumn. Orconectes limosus showed the ability to move downstream rapidly (max. 139 m per day). Seasonal fluctuations in crayfish density were observed and suggested that the occurrence of crayfish in the brook goes through periodic changes. A lower water temperature in the brook throughout the year, andpossible fish prédation pressure in the reservoir, could contribute to this phenomenon. The occurrence of O. limosus in reservoirs of big rivers, its periodic migrations, as well as the threat of potential crayfish plague transmission, a

Název v anglickém jazyce

Seasonal migrations of introduced Orconectes limosus (Rafinesque) to a small tributary of a large river

Popis výsledku anglicky

A seasonal migration of introduced Orconectes limosus (Rafinesque) between a brook and reservoir was observed in a small tributary of a large reservoir in southwest Czech Republic that was identified as suitable habitat for indigenous crayfish. Sixteen capture events (between April 2007 and October 2008) and one radio-telemetry study (from October to November 2007) were conducted. A significant trend of downstream migration to the reservoir was found in autumn. Orconectes limosus showed the ability to move downstream rapidly (max. 139 m per day). Seasonal fluctuations in crayfish density were observed and suggested that the occurrence of crayfish in the brook goes through periodic changes. A lower water temperature in the brook throughout the year, andpossible fish prédation pressure in the reservoir, could contribute to this phenomenon. The occurrence of O. limosus in reservoirs of big rivers, its periodic migrations, as well as the threat of potential crayfish plague transmission, a

Druh

D - Stať ve sborníku

CEP obor

GL - Rybářství

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

Freshwater Crayfish

ISBN

978-951-27-1322-6

ISSN

2076-4324

e-ISSN

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Počet stran výsledku

4

Strana od-do

183-186

Název nakladatele

International Association of Astacology

Místo vydání

Kuopio; Finland

Místo konání akce

Kuopio; Finland

Datum konání akce

4. 8. 2008

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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