Invasive American crayfish <Emphasis Type="Italic">Pacifastacus leniusculus</Emphasis> (Decapoda: Astacidae) in the Morava River (Slovakia) |
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Authors: | Adam Petrusek Tereza Petrusková |
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Institution: | (1) Faculty of Science, Department of Ecology, Charles University in Prague, Viničná 7, CZ-12844 Prague 2, Czech Republic;(2) Research Institute of Fish Culture and Hydrobiology, University of South Bohemia in České Budějovice, Zátiší 728/II, Vodňany, CZ-38925, Czech Republic |
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Abstract: | The signal crayfish, Pacifastacus leniusculus (Dana, 1852), was recorded in the Slovak-Austrian stretch of the Morava (March) River in the Záhorie region in August 2006.
This is the first confirmed record of a non-indigenous crayfish species of American origin in Slovakia. Most likely, signal
crayfish were intentionally released to the river by Austrian fishermen, or invaded from adjacent water bodies in Austria.
As this species has a substantial invasive capability and is a potential vector of the crayfish plague pathogen, it represents
a threat to the native crayfish species and its spread should be monitored. Its invasion upstream to the territory of the
Czech Republic is not unlikely in near future. |
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Keywords: | Pacifastacus leniusculus signal crayfish invasive species crayfish plague Slovakia first record |
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