Risk assessment of the crayfish pet trade based on data from the Czech Republic

Patoka, Jiří; Kalous, Lukáš; Kopecký, Oldřich

doi:10.1007/s10530-014-0682-5

Cited by 77 publications

(90 citation statements)

References 17 publications

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“…Germany and the Czech Republic, with 120 and 27 NICS, respectively, have been identified as leading European countries in terms of the availability within their borders of ornamental crayfish species (Chucholl, 2013;Patoka et al, 2014b). Several socio economic and demographic factors (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…1) is truly alarming. Based upon various surveys conducted of the pet trade in crayfish, the range of NICS offered for sale in Ukraine is the highest after those of Germany (Chucholl, 2013), the Czech Republic (Patoka et al, 2014b), and the United States (Faulkes, 2015b). Two-thirds of these species are native to North American and thus are potential carriers of crayfish plague.…”

Section: Discussionmentioning

confidence: 99%

“…1). Despite its rapid growth rates and large body length, it is unlikely that such an expensive species (Chucholl, 2013;Patoka et al, 2014b) would be released into the wild in large quantities (cf. Van Wilgen et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…These species had been identified as the most common also in other European countries where the pet trade in crayfish was analysed, such as in Germany (Chucholl, 2013) and in the Czech Republic (Patoka et al, 2014b(Patoka et al, , 2014c. Concerns as to their further spread are fully justified inasmuch as their occurrence is powerfully driven by propagule pressure relating to the pet trade (Chucholl, 2014, Faulkes, 2015a.…”

Section: Discussionmentioning

confidence: 99%

“…Risk of crayfish pet trade have been already studied in several European countries, including the Czech Republic (Patoka et al, 2014b), Germany (Chucholl, 2013), Greece (Papavlasopoulou et al, 2013), Italy (Tricarico et al, 2010), Slovakia (Lipták and Vitázková, 2015), Turkey (Turkmen and Karadal, 2012), Canada (Faulkes, 2013) and USA (Faulkes, 2015b). Marbled crayfish Procambarus fallax f. virginalis Martin et al, 2010 was always determined to be the first or second most available species and with the highest estimations of invasiveness.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

East European crayfish stocks at risk: arrival of non-indigenous crayfish species

Kotovska

Khrystenko

Patoka

et al. 2016

Knowl. Manag. Aquat. Ecosyst.

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-An increasing number of non-indigenous crayfish species (NICS) of apparently pet trade origin have become established particularly in Europe. Especially alarming are recent confirmation of two distantly separated marbled crayfish Procambarus fallax f. virginalis populations in Ukraine and indications of more North American cambarids present in the local pet market. The present study aimed to investigate crayfish species availability within the Ukrainian pet trade together with the climate match and risk they represent to the freshwater ecosystems generally and indigenous crayfish species in particular. Altogether, 15 NICS belonging to all three crayfish families were detected. Considering their origin, availability, probability of establishment, invasiveness and further aspects, marbled crayfish and red swamp crayfish Procambarus clarkii appear to be potentially the most troubling. Available information obtained from the pet trade in ornamental crayfish as a whole demonstrates that the broad availability of NICS most probably overlaps the vast majority of European indigenous crayfish species distribution, including the endemic thick-clawed crayfish Astacus pachypus, which occupies only a limited area that is situated critically close to established marbled crayfish populations. Negative effects of NICS on freshwater ecosystems as a whole can be also expected.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

East European crayfish stocks at risk: arrival of non-indigenous crayfish species

Kotovska

Khrystenko

Patoka

et al. 2016

Knowl. Manag. Aquat. Ecosyst.

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Irresponsible vendors: Non‐native, invasive and threatened animals offered for garden pond stocking

Patoka

Bláha

Kalous

et al. 2016

Aquatic Conservation

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1. The pet trade has been responsible for many introductions of non-native species. Freshwater ornamental plants and animals originating from the pet trade are stocked to garden ponds.The present survey focused on awareness and responsible behaviour related to biological invasion risks of companies that designed, built, and stocked garden ponds. 2. A representative number (n = 124) of companies (commercial garden pond architects and builders) in the Czech Republic were surveyed regarding the offer of non-native, invasive and threatened native species. The survey was conducted over the entire warm period (from 1 May 2015 to 31 September 2015) while using personal visits, correspondence and interviews to list the species on offer.3. 'Traditional' ornamental species were offered by 39.1% of surveyed vendors, non-traditional 'marginal' species by 5.6%, common native species by 6.5% and threatened native species by 2.4%.4. The findings of this study support the hypothesis that 'garden pond' vendors offer non-native species with a risk of biological invasion; moreover, threatened native animals were also on sale. It is probable that a similar situation exists in other countries. It is important for the conservation of native aquatic biota to raise awareness of the need to reduce risk through responsible behaviour of those involved in the pet trade. It is also essential to prohibit stocking of potential invaders and to enforce the illegal capture and sale of native species.

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Procambarus clarkii (Girard, 1852) and crayfish plague as new threats for biodiversity in Indonesia

Putra

Bláha

Wardiatno

et al. 2018

Aquatic Conservation

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Numerous freshwater crayfish species are known to become successful invaders when introduced to new territories. One of the most invasive species in this group is the red swamp crayfish, Procambarus clarkii (Girard, 1852). In addition to other characteristics facilitating its invasiveness, it is also a vector of crayfish plague, a disease mostly lethal to crayfish of non‐North American origin. Procambarus clarkii, at present the most widespread crayfish species globally, is popular in many countries both for human consumption and as an ornamental animal. An established population of this species was documented for the first time within Indonesia, representing the first record for maritime Southeast Asia. The species is also common in the local ornamental pet trade. Infection by the crayfish plague pathogen Aphanomyces astaci Schikora was confirmed both in the outdoor population of P. clarkii and in one of the surveyed pet shops. Furthermore, A. astaci was detected in specimens of freshwater crab and shrimp species coexisting with P. clarkii. Local climatic conditions and the species temperature requirements suggest a high probability of the establishment of P. clarkii in Indonesia. Its further spread could irreversibly damage populations of many native endemic crustaceans in the country (as well as elsewhere in the region), and the thriving local aquacultures of the redclaw crayfish Cherax quadricarinatus (von Martens, 1868) may also be threatened. The total ban of P. clarkii and other crayfish species of North American origin in Indonesia is strongly recommended, especially considering that aquaculture and trade with Australasian species is a viable alternative option.

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Risk assessment of the crayfish pet trade based on data from the Czech Republic

Cited by 77 publications

References 17 publications

East European crayfish stocks at risk: arrival of non-indigenous crayfish species

East European crayfish stocks at risk: arrival of non-indigenous crayfish species

Irresponsible vendors: Non‐native, invasive and threatened animals offered for garden pond stocking

Procambarus clarkii (Girard, 1852) and crayfish plague as new threats for biodiversity in Indonesia

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