Nonindigenous Crayfishes Threaten North American Freshwater Biodiversity: Lessons from Europe

Lodge, David M.; Taylor, Christopher A.; Holdich, D. M.; Skurdal, Jostein

doi:10.1577/1548-8446(2000)025<0007:nctnaf>2.0.co;2

Cited by 422 publications

(376 citation statements)

References 69 publications

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“…The spread of non-native taxa represents a significant threat to freshwater biodiversity and ecosystem functioning at a global scale (Sala et al, 2000;Lodge et al, 2000;Simberloff et al, 2013). The establishment of populations of invasive species within an ecosystem can severely disrupt the structure and functioning of native floral and faunal communities through direct predation, competition and displacement of native species, but also via indirect pathways and the decoupling of trophic dynamics (Nyström et al, 1996;Strayer, 2010;Gutierrez et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

The long-term effects of invasive signal crayfish (Pacifastacus leniusculus) on instream macroinvertebrate communities

Mathers

Chadd

Dunbar

et al. 2016

Science of The Total Environment

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Section: Introductionmentioning

confidence: 99%

The long-term effects of invasive signal crayfish (Pacifastacus leniusculus) on instream macroinvertebrate communities

Mathers

Chadd

Dunbar

et al. 2016

Science of The Total Environment

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“…Invaders can threaten native species through competition, predation and introduction of new diseases, causing negative impacts on the structure and functioning of ecosystems (Hobbs et al, 1989;Holdich, 1999). Freshwater crustaceans are one of the most documented groups of freshwater invaders and are responsible for declines and extinctions of native species throughout the world (Guan and Wiles, 1997;Lodge et al, 1998Lodge et al, , 2000Nyström et al, 2001, Westman et al, 2002. The red swamp crayfish, Procambarus clarkii (Girard, 1852) is endemic to southeastern North America and, with the exception of Australia and Antarctica, it was successfully introduced on every continent due to its food value and economic importance (Hobbs et al, 1989).…”

Section: Introductionmentioning

confidence: 99%

Interactions between invasive crayfish and native river shrimp

Banha

Anastácio

2011

Knowl. Managt. Aquatic Ecosyst.

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Key-words:interaction, Athyaephyra desmarestii, Procambarus clarkii, predation, habitat use In the south of Portugal there are only two species of strictly freshwater decapods: the native freshwater shrimp Atyaephyra desmarestii and the exotic crayfish Procambarus clarkii. The aim of this study is to understand if the exotic crayfish acts as river shrimp predator and if both species share the same type of microhabitat. We performed laboratory experiments to study predation and conducted field work in the river Sorraia to verify the microhabitat distribution of both species. Laboratory experiments demonstrated significant predation on river shrimp for crayfish with a cephalothorax length (CT) over 24 mm. The average daily consumption increases with crayfish CT to a maximum of 0.8 shrimps at 44 mm. Field work confirmed that both species share the same microhabitats although with small differences e.g. on the water quality variables such as conductivity and the percentage of oxygen saturation. These microhabitats are shallow pools with abundant aquatic vegetation with no preference for the type of substrate. In the field, both crayfish density and its cephalothorax length are negatively correlated with shrimp densities. In conclusion, P. clarkii can predate A. desmarestii and the major impacts are expected at high densities of large sized crayfish. RÉSUMÉ Interactions entre écrevisse invasive et crevette native en rivière Mots-clés :interaction, Athyaephyra desmarestii, Procambarus clarkii, prédation, habitatDans le sud du Portugal, il n'y a que deux espèces de décapodes strictement d'eau douce : la crevette indigène d'eau douce Atyaephyra desmarestii et l'écrevisse exogène Procambarus clarkii. Le but de cette étude est de comprendre si l'écrevisse exogène agit comme prédateur de la crevette et si les deux espèces partagent le même type de microhabitat. Des expériences de laboratoire ont été réalisées pour étudier la prédation et des travaux sur le terrain dans la rivière Sorraia pour vérifier la distribution des microhabitats des deux espèces. Les expé-riences de laboratoire montrent une prédation significative sur la crevette palomète par l'écrevisse dont la longueur du céphalothorax (CT) est supérieure à 24 mm. La consommation moyenne journalière augmente avec la taille CT de l'écrevisse jusqu'à un maximum de 0,8 crevette à 44 mm. Le travail de terrain confirme que les deux espèces partagent les mêmes microhabitats bien qu'avec de petites différences concernant des variables de qualité des eaux comme la conductivité et le pourcentage de saturation en oxygène. Ces microhabitats sont des calmes peu profonds avec une abondante végétation aquatique sans préférence pour le type

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“…The crayfish plague pathogen is probably one of the best-known oomycete diseases, and Aphanomyces astaci Schikora, 1906 is one of the best-studied invertebrate pathogens (Rezinciuc et al, 2016). It is considered to be the most devastating disease to all crayfish not originating from North America (Lodge et al, 2000;Svoboda et al, 2016). Unsurprisingly, it is also listed among the worst invasive species in Europe (Vilà et al, 2010) as well as worldwide (Lowe et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

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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Nonindigenous Crayfishes Threaten North American Freshwater Biodiversity: Lessons from Europe

Cited by 422 publications

References 69 publications

The long-term effects of invasive signal crayfish (Pacifastacus leniusculus) on instream macroinvertebrate communities

The long-term effects of invasive signal crayfish (Pacifastacus leniusculus) on instream macroinvertebrate communities

Interactions between invasive crayfish and native river shrimp

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

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