Results 31 to 40 of about 1,850 (197)

Preliminary survey of Aphanomyces sp. associated with native and invasive crayfish in the Lower Susquehanna watershed of South Central Pennsylvania

open access: yesJournal of Freshwater Ecology, 2020
The oomycete species, Aphanomyces astaci, is well known as the devastating causal agent of European crayfish plague. Despite assumptions of a North American origin, the prevalence and distribution of A. astaci in its presumed native range is unknown.
Elizabeth Butler   +3 more
doaj   +1 more source

Thirty years of invasion: the distribution of the invasive crayfish Procambarus clarkii in Italy [PDF]

open access: yes, 2020
The presence of the red swamp crayfish Procambarus clarkii in Italy is documented since 1989, but no comprehensive data are available on its spread through time at the national scale. New confirmed records for Procambarus clarkii are continuously arising
Falaschi, Mattia   +3 more
core   +2 more sources

Exploring the eDNA dynamics of the host-pathogen pair Pacifastacus leniusculus (Decapoda) and Aphanomyces astaci (Saprolegniales) under experimental conditions [PDF]

open access: yesNeoBiota, 2022
The oomycete Aphanomyces astaci causes crayfish plague, a disease threatening native European crayfish. It is carried and transmitted by American crayfish species, which are the original hosts of A. astaci.
Johannes C. Rusch   +6 more
doaj   +3 more sources

Genomic Data Reveal Multiple Introduction Sources and Limited Post-Colonization Gene Flow in Southeast Michigan Invasive Red Swamp Crayfish (<i>Procambarus clarkii</i>). [PDF]

open access: yesEcol Evol
Examining the genetic patterns of invasive Red Swamp Crayfish in southeast Michigan, we found evidence of multiple separate introductions along with limited natural dispersal between geographic–genetic groups. We detected evidence of secondary dispersal from early invasive populations consistent with a bridgehead effect and little evidence the heavily ...
Adams NE   +6 more
europepmc   +2 more sources

First record of the stone crayfish in the Romanian lowlands

open access: yesKnowledge and Management of Aquatic Ecosystems, 2021
The stone crayfish is a native European freshwater species with significant population declines caused by anthropogenic pressure onto its habitats, climate change and spreading of non-indigenous invasive crayfish and their pathogens (e.g., Aphanomyces ...
Groza Marius-Ioan   +3 more
doaj   +1 more source

Analysis of chitinase expression in the crayfish plague fungus Aphanomyces astaci [PDF]

open access: yesDiseases of Aquatic Organisms, 2002
Chitinase, as determined by enzymatic activity in the growth medium and by transcription of the chitinase gene AaChi1, is expressed at a high level during vegetative growth of the crayfish pathogen Aphanomyces astaci and expression is not further stimulated by chitin. Expression is not detected in zoospores and it does not increase to high levels until
M Gunnar, Andersson, Lage, Cerenius
openaire   +2 more sources

May atyid shrimps act as potential vectors of crayfish plague? [PDF]

open access: yesNeoBiota, 2019
The causative agent of crayfish plague, Aphanomyces astaci Schikora, was long considered to be a specialist pathogen whose host range is limited to freshwater crayfish.
Agata Mrugała   +3 more
doaj   +3 more sources

Global distribution of two fungal pathogens threatening endangered sea turtles [PDF]

open access: yes, 2014
This work was supported by grants of Ministerio de Ciencia e Innovación, Spain (CGL2009-10032, CGL2012-32934). J.M.S.R was supported by PhD fellowship of the CSIC (JAEPre 0901804).
A Gargas   +62 more
core   +8 more sources

Apparent interspecific transmission of Aphanomyces astaci from invasive signal to virile crayfish in a sympatric wild population [PDF]

open access: yes, 2017
The crayfish plague pathogen (Aphanomyces astaci) causes mass mortalities of European crayfish when transmitted from its original North American crayfish hosts.
Cable, Joanne   +4 more
core   +2 more sources

Aphanomyces astaci in Mexico: A new haplotype from dwarf crayfish Cambarellus montezumae

open access: yesJournal of Invertebrate Pathology, 2023
The crayfish plague is an emerging infectious disease caused by the pathogen Aphanomyces astaci (Oomycota), which is responsible for the decimation of Eurasian freshwater crayfish. This pathogen can coexist with the North American crayfish. These are chronic carriers of the disease as consequence of an immune response that can contain the growth of the
Laura Martín-Torrijos   +3 more
openaire   +2 more sources

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