Results 21 to 30 of about 1,850 (197)

Confirmation of crayfish plague in Italy: detection of Aphanomyces astaci in white clawed crayfish [PDF]

Diseases of Aquatic Organisms, 2010
In the summer of 2009, high levels of mortality among white clawed crayfish Austropotamobius pallipes were observed in 3 watercourses of central Italy. PCR and culture methods were used to detect the causative agent of the disease. Two strains of Aphanomyces spp.
Cammà, C, Ferri, N, ZEZZA, DANIELA, Marcacci, M, Paolini, A, Ricchiuti, L, Lelli, R.   +6 more
openaire   +5 more sources

eDNA‐Based Detection of Invasive Crayfish and Crayfish Plague in Estonia

Environmental DNA
In Estonia, three invasive North American crayfish species—Pacifastacus leniusculus, Faxonius limosus, and Procambarus virginalis—have been detected through the annual monitoring program.
Michael Oliewo Aluma, Katrin Kaldre, David A. Strand, Margo Hurt, Lilian Pukk   +4 more
doaj   +2 more sources

Mitochondrial genomes and comparative genomics of Aphanomyces astaci and Aphanomyces invadans. [PDF]

Sci Rep, 2016
AbstractThe genus Aphanomyces (Saprolegniales, Oomycetes) includes species with a variety of ecologies from saprotrophs to plant and animal parasites. Two important species in this genus are A. astaci, the cause of crayfish plague and its close relative, A. invadans, which causes the epizootic ulcerative syndrome on fish.
Makkonen J, Vesterbacka A, Martin F, Jussila J, Diéguez-Uribeondo J, Kortet R, Kokko H.   +6 more
europepmc   +4 more sources

First European Interlaboratory Ring Test Study to Detect DNA of Crayfish and the Crayfish Plague Pathogen From Water Samples

Environmental DNA
In recent years, European countries have intensified efforts to control or limit the spread of invasive freshwater crayfish and the crayfish plague pathogen Aphanomyces astaci, while working to conserve native species such as the noble crayfish (Astacus ...
Patrik Bohman, Kristofer Andersson, David A. Strand, Thomas Baudry, Kathrin Theissinger, Ivana Maguire, Michael Aluma, Anna Aspán, Martin Bláha, Ljudevit Luka Bostjancic, Carine Delaunay, Javier Diéguez‐Uribeondo, Lennart Edsman, Fabio Ercoli, Jean‐Yves Georges, Frédéric Grandjean, Bogna Griffin, Terhi Iso‐Touru, Birgitta Jacobsson, Katrin Kaldre, Alex King, Pavel Kozák, Lucija Markulin, María Martínez‐Ríos, Laura Martín‐Torrijos, Saima Mohammad, Michaela Mojžišová, Teja Petra Muha, Ludvig Orsén, John Persson, Simone Roberto Rolando Pisano, Lilian Pukk, Björn Rogell, Timo J. Ruokonen, Heike Schmidt‐Posthaus, Jonas Steiner, Linda Söderberg, Anti Vasemägi, Armin Zenker, Adam Petrusek   +39 more
doaj   +2 more sources

Better Alone Than in Bad Company: Trophic Ecology of Co-Occurring Invasive and Native Crayfish. [PDF]

Ecol Evol
This study investigated and compared trophic interactions between invasive signal crayfish and native white‐clawed crayfish at sites of co‐occurrence and in allopatry. The presence of crayfish plague, body condition, and trophic niche traits were explored as possible factors that make invasive signal crayfish a strong competitor, enhancing its ...
Ghia D, Fea G, Murtas A, Ventimiglia M, Bo T, Basso A, Pretto T, Sacchi R, Ercoli F.   +8 more
europepmc   +2 more sources

Long-term changes in the prevalence of the crayfish plague pathogen and its genotyping in invasive crayfish species in Czechia [PDF]

NeoBiota, 2022
The widespread presence of North American alien crayfish in Europe is a major driver of native crayfish population declines, mainly because they are chronic carriers of the oomycete Aphanomyces astaci responsible for crayfish plague.
Michaela Mojžišová, Jitka Svobodová, Eva Kozubíková-Balcarová, Eva Štruncová, Robin Stift, Michal Bílý, Antonín Kouba, Adam Petrusek   +7 more
doaj   +3 more sources

Molecular detection of Aphanomyces astaci – An improved species specific qPCR assay

Journal of Invertebrate Pathology, 2023
The parasitic oomycete Aphanomyces astaci is the causative agent of crayfish plague, a devastating disease for European freshwater crayfish. Species specific quantitative real-time PCR (qPCR) can offer rapid detection of the pathogen. However, the well established A.
David A. Strand, Tomas Jinnerot, Anna Aspán, Satu Viljamaa-Dirks, Sirpa Heinikainen, Elin Rolén, Trude Vrålstad   +6 more
openaire   +2 more sources

Host Resistance and Behavior Determine Invasion Dynamics of a Detrimental Aquatic Disease. [PDF]

Ecol Evol
To control emerging diseases, we need to understand the effects of variation in host resistance and the multitude of transmission modes of parasites combined with hosts' complex behavioral interactions. Based on a discrete stage model, we propose that even if the infection is fatal, coexistence of the host and the parasite can be facilitated by ...
Koivu-Jolma M, Kortet R, Vainikka A, Kaitala V.   +3 more
europepmc   +2 more sources

Coexistence of Two Invasive Species, Procambarus clarkii and Aphanomyces astaci, in Brackish Waters of a Mediterranean Coastal Lagoon

Frontiers in Ecology and Evolution, 2021
Procambarus clarkii is a worldwide freshwater invasive crustacean from North America and was first introduced into Europe the 1970s. Along with P. clarkii, another invasive alien species was also spreading: Aphanomyces astaci.
Laura Martín-Torrijos, Angel Jose Correa-Villalona, Antonio Pradillo, Javier Diéguez-Uribeondo   +3 more
doaj   +1 more source

Controlled Infection Experiment With Aphanomyces astaci Provides Additional Evidence for Latent Infections and Resistance in Freshwater Crayfish

Frontiers in Ecology and Evolution, 2021
For 150 years the crayfish plague disease agent Aphanomyces astaci has been the cause of mass mortalities among native European crayfish populations. However, recently several studies have highlighted the great variability of A.
Caterina Francesconi, Jenny Makkonen, Anne Schrimpf, Japo Jussila, Harri Kokko, Kathrin Theissinger, Kathrin Theissinger   +6 more
doaj   +1 more source