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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F14%3A10218345%21RIV15-MSM-11310___
rdf:type
skos:Concept n19:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1080/03949370.2014.897652
dcterms:description
The crayfish plague pathogen (Aphanomyces astaci) is one of the most important threats to indigenous European crayfish. Although it belongs among the most studied pathogens of invertebrates, only a few recent studies are available on the epidemiology of crayfish plague and its long-term effects on crayfish populations. We provide detailed data on 11 populations of European crayfish (Astacus astacus, A. leptodactylus, Austropotamobius torrentium) hit by crayfish plague in the Czech Republic between 1998 and 2011. We repeatedly surveyed the affected localities in the years following the disease outbreaks to investigate potential recovery of crayfish populations and to search for the likely sources of infection. Although the mortalities severely decimated all studied populations, European crayfish could be found in the watercourse catchments after the disease outbreaks in all but two cases. In five cases, migration barriers apparently supported crayfish survival; in two cases, the disease stopped spreading even without the presence of any barrier. Indigenous crayfish were recorded directly in the affected parts of five studied streams after some time but in most cases populations have not yet reached the original densities. Their recovery seems influenced by the population size in unaffected refuges as well as time since the outbreak. Sources of infection and transmission pathways of A. astaci apparently vary in the Czech Republic. Aphanomyces astaci of three genotype groups originating in different crayfish plague pathogen carriers were involved in the outbreaks. Direct transmission of A. astaci from invasive American crayfish present in the same stream is likely in three cases; however, these host crayfish were not recorded at the remaining localities, and long-range dispersal or other pathogen sources may be assumed. The crayfish plague pathogen (Aphanomyces astaci) is one of the most important threats to indigenous European crayfish. Although it belongs among the most studied pathogens of invertebrates, only a few recent studies are available on the epidemiology of crayfish plague and its long-term effects on crayfish populations. We provide detailed data on 11 populations of European crayfish (Astacus astacus, A. leptodactylus, Austropotamobius torrentium) hit by crayfish plague in the Czech Republic between 1998 and 2011. We repeatedly surveyed the affected localities in the years following the disease outbreaks to investigate potential recovery of crayfish populations and to search for the likely sources of infection. Although the mortalities severely decimated all studied populations, European crayfish could be found in the watercourse catchments after the disease outbreaks in all but two cases. In five cases, migration barriers apparently supported crayfish survival; in two cases, the disease stopped spreading even without the presence of any barrier. Indigenous crayfish were recorded directly in the affected parts of five studied streams after some time but in most cases populations have not yet reached the original densities. Their recovery seems influenced by the population size in unaffected refuges as well as time since the outbreak. Sources of infection and transmission pathways of A. astaci apparently vary in the Czech Republic. Aphanomyces astaci of three genotype groups originating in different crayfish plague pathogen carriers were involved in the outbreaks. Direct transmission of A. astaci from invasive American crayfish present in the same stream is likely in three cases; however, these host crayfish were not recorded at the remaining localities, and long-range dispersal or other pathogen sources may be assumed.
dcterms:title
Status and recovery of indigenous crayfish populations after recent crayfish plague outbreaks in the Czech Republic Status and recovery of indigenous crayfish populations after recent crayfish plague outbreaks in the Czech Republic
skos:prefLabel
Status and recovery of indigenous crayfish populations after recent crayfish plague outbreaks in the Czech Republic Status and recovery of indigenous crayfish populations after recent crayfish plague outbreaks in the Czech Republic
skos:notation
RIV/00216208:11310/14:10218345!RIV15-MSM-11310___
n3:aktivita
n13:I n13:V
n3:aktivity
I, V
n3:cisloPeriodika
2-3
n3:dodaniDat
n5:2015
n3:domaciTvurceVysledku
n4:9317015 n4:1596632
n3:druhVysledku
n14:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
47403
n3:idVysledku
RIV/00216208:11310/14:10218345
n3:jazykVysledku
n11:eng
n3:klicovaSlova
Aphanomyces astaci; Austropotamobius torrentium; crayfish plague; Astacus astacus; European crayfish; field survey; epidemiology
n3:klicoveSlovo
n6:European%20crayfish n6:Aphanomyces%20astaci n6:crayfish%20plague n6:Astacus%20astacus n6:Austropotamobius%20torrentium n6:field%20survey n6:epidemiology
n3:kodStatuVydavatele
IT - Italská republika
n3:kontrolniKodProRIV
[A3D5127CD2D9]
n3:nazevZdroje
Ethology Ecology and Evolution
n3:obor
n18:EG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
7
n3:rokUplatneniVysledku
n5:2014
n3:svazekPeriodika
26
n3:tvurceVysledku
Beran, L. Kozubíková-Balcarová, Eva Petrusek, Adam Horká, I. Fischer, D. Svobodová, J. Ďuriš, Z.
n3:wos
000334894200012
s:issn
0394-9370
s:numberOfPages
21
n16:doi
10.1080/03949370.2014.897652
n15:organizacniJednotka
11310