Predictions of marbled crayfish establishment in conurbations fulfilled: Evidences form the Czech republic

0469315 - BC 2017 RIV DE eng J - Journal Article
Patoka, J. - Buřič, M. - Kolář, Vojtěch - Bláha, M. - Petrtýl, M. - Franta, P. - Tropek, Robert - Kalous, L. - Petrusek, A. - Kouba, A.
Predictions of marbled crayfish establishment in conurbations fulfilled: Evidences form the Czech republic.
Biologia. Roč. 71, č. 12 (2016), s. 1380-1385. ISSN 0006-3088. E-ISSN 1336-9563
R&D Projects: GA ČR GAP504/12/2525
Grant - others:GA JU(CZ) 158/2016/P; GA MŠk(CZ) LO1205
Institutional support: RVO:60077344
Keywords : Procambarus fallax f. virginalis * biological invasion * first record
Subject RIV: EH - Ecology, Behaviour
Impact factor: 0.759, year: 2016

The marbled crayfish (Procambarus fallax f. virginalis) has become one of the potentially most dangerous nonindigenous crayfish species spreading in European countries and elsewhere. This taxon reproduces parthenogenetically and recently has been verified as a vector of the crayfish plague pathogen. Here, we report on two established populations of marbled crayfish in the Czech Republic. The marbled crayfish was observed during autumn 2015 in an urban pond connected
by sewer piping with the Rokytka brook near its mouth to the Vltava River in Prague. Subsequently, three adult females, two of them having well-developed glair glands and oocytes, were captured in this pond during spring 2016, suggesting successful overwintering of the local population. Furthermore, four adult females were captured in an artificial pond at the Radovesická lignite spoil heap in the vicinity to the industrial conurbation of Bílina in summer 2016; one of them
carried eggs. We tested these for the presence of the crayfish plague pathogen Aphanomyces astaci, with negative results. The introduction pathway for both populations is most likely a release from private aquaria, as these sites are popular for recreation activities. Our findings substantiate previous predictions that conurbations are likely to be the primary areas formarbled crayfish introductions.
Permanent Link: http://hdl.handle.net/11104/0268483