May Cherax destructor contribute to Aphanomyces astaci spread in Central Europe?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F16%3A43890546" target="_blank" >RIV/60076658:12520/16:43890546 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/16:10328905

Výsledek na webu

<a href="http://www.aquaticinvasions.net/2016/AI_2016_Mrugala_etal.pdf" target="_blank" >http://www.aquaticinvasions.net/2016/AI_2016_Mrugala_etal.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3391/ai.2016.11.4.10" target="_blank" >10.3391/ai.2016.11.4.10</a>

Jazyk výsledku

angličtina

Název v původním jazyce

May Cherax destructor contribute to Aphanomyces astaci spread in Central Europe?

Popis výsledku v původním jazyce

Transmission of the crayfish plague pathogen Aphanomyces astaci endangers native European crayfish. This pathogen, spread mainly by its natural hosts, North American crayfish, has also been detected in the aquarium trade in Europe. As the trade in ornamental crayfish is nowadays considered a key introduction pathway of non-European crayfish, it may contribute to crayfish plague spread. Non-American crayfish have been assessed as highly susceptible to the pathogen, and thus unlikely to participate in A. astaci spread from aquarium facilities. However, moderate resistance to this disease has been suggested for the Australian yabby Cherax destructor. This widely traded crayfish species exhibits high potential to establish in Central Europe, and has been assessed as a high-risk species with regards to its invasiveness. We investigated resistance of juvenile C. destructor towards three A. astaci strains differing in virulence (representing genotype groups A, B and E), present in Central European waters. Cherax destructor was exposed to two doses of A. astaci zoospores (10 and 100 spores ml(-1)) and its mortality was further compared with that of the juvenile European noble crayfish Astacus astacus. While some survival among C. destructor individuals was observed after exposure to the least virulent A. astaci strain (genotype group A), total mortality of Australian crayfish was noted after infection with the two more virulent strains. However, in contrast to A. astacus, the mortality of C. destructor was significantly delayed. These results suggest that under favourable conditions C. destructor may contribute to crayfish plague spread in Central Europe.

Název v anglickém jazyce

May Cherax destructor contribute to Aphanomyces astaci spread in Central Europe?

Popis výsledku anglicky

Transmission of the crayfish plague pathogen Aphanomyces astaci endangers native European crayfish. This pathogen, spread mainly by its natural hosts, North American crayfish, has also been detected in the aquarium trade in Europe. As the trade in ornamental crayfish is nowadays considered a key introduction pathway of non-European crayfish, it may contribute to crayfish plague spread. Non-American crayfish have been assessed as highly susceptible to the pathogen, and thus unlikely to participate in A. astaci spread from aquarium facilities. However, moderate resistance to this disease has been suggested for the Australian yabby Cherax destructor. This widely traded crayfish species exhibits high potential to establish in Central Europe, and has been assessed as a high-risk species with regards to its invasiveness. We investigated resistance of juvenile C. destructor towards three A. astaci strains differing in virulence (representing genotype groups A, B and E), present in Central European waters. Cherax destructor was exposed to two doses of A. astaci zoospores (10 and 100 spores ml(-1)) and its mortality was further compared with that of the juvenile European noble crayfish Astacus astacus. While some survival among C. destructor individuals was observed after exposure to the least virulent A. astaci strain (genotype group A), total mortality of Australian crayfish was noted after infection with the two more virulent strains. However, in contrast to A. astacus, the mortality of C. destructor was significantly delayed. These results suggest that under favourable conditions C. destructor may contribute to crayfish plague spread in Central Europe.

Druh

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

CEP obor

GL - Rybářství

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Aquatic Invasions

ISSN

1798-6540

e-ISSN

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Svazek periodika

11

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

FI - Finská republika

Počet stran výsledku

10

Strana od-do

459-468

Kód UT WoS článku

000385925200010

EID výsledku v databázi Scopus

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