Impacts of the North American signal crayfish (Pacifastacus leniusculus) on European ecosystems

Vaeßen, Susanne; Hollert, Henner

doi:10.1186/s12302-015-0065-2

Cited by 24 publications

(11 citation statements)

References 24 publications

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“…In spite of the crayfish plague, Ireland is considered one of the few remaining strongholds for A. pallipes within Europe. One reason for this may be that the invasive signal crayfish ( Pacifastacus leniusculus ), which can cause wide-ranging impacts on freshwater ecosystems and act as a vector for the crayfish plague (Vaeßen and Hollert 2015), has not been reported in Ireland. However, crayfish plague has reached Irish rivers, and large changes in the distribution of A. pallipes have been partially attributed to past plague outbreaks (Demers et al 2005).…”

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confidence: 99%

Field validation of an eDNA assay for the endangered white-clawed crayfishAustropotamobius pallipes

Atkinson

Carlsson

Ball

et al. 2019

Preprint

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The white-clawed crayfish Austropotamobius pallipes has experienced extensive 18 population declines in its native range in the last century and is now a threatened species. 19 European legislation therefore requires A. pallipes populations to be monitored regularly and that 20 Special Areas of Conservation (SACs) be designated in part of their range. These needs cannot 21 be met without knowledge about the distribution of this species. However, common crayfish 22 sampling approaches can be time consuming, expensive, or yield false negatives at low 23 population densities. We therefore present an environmental DNA (eDNA) assay to detect A. 24 pallipes in water samples with species-specific primers, a minor groove binding (MGB) probe, 25 and quantitative PCR, based on the mitochondrial cytochrome oxidase I (COI) gene. The results 26 reflected the expected distribution of A. pallipes, based on the known locations of this species in 27 the catchment areas sampled. The results of this study indicate that eDNA is an effective tool for 28 detecting A. pallipes in a lotic system, and could therefore provide a valuable, non-invasive 29 method for determining its distribution. 30Austropotamobius pallipes, Ireland, river 32 33 3 The white-clawed crayfish Austropotamobius pallipes is a relatively large, long-lived (>10 y) 34 crustacean that inhabits both rivers and lakes (Reynolds et al. 2010). This species requires 35 alkaline conditions for survival and is commonly found in waterbodies overlying carboniferous 36 limestone bedrock (Lucey and McGarrigle 1987). Austropotamobius pallipes is 1 of the 5 37 indigenous crayfish species in Europe (Holdich et al. 2009) and was once abundant throughout 38 Europe. However, over the last century, populations of this species have been greatly reduced or 39 gone locally extinct across large parts of its native range (Grandjean et al. 1997). Pollution 40 (Demers and Reynolds 2002, Lyons and Kelly-Quinn 2003), habitat loss, and disease (Matthews 41 and Reynolds 1992) have all contributed to this decline. The crayfish plague, caused by the 42 fungus Aphanomyces astaci (Holdich et al. 2009) is of particular concern because A. pallipes 43 possesses no resistance to this fungus. Thus, entire populations of A. pallipes can be eradicated 44 following an outbreak (Reynolds et al. 2010). 45In spite of the crayfish plague, Ireland is considered one of the few remaining strongholds 46 for A. pallipes within Europe. One reason for this may be that the invasive signal crayfish 47 49 Ireland. However, crayfish plague has reached Irish rivers, and large changes in the distribution 50 of A. pallipes have been partially attributed to past plague outbreaks (Demers et al. 2005). 51Additionally, there is currently an outbreak of crayfish plague in Ireland (National Biodiversity 52 Data Center 2018). Thus, there is a pressing need for a non-invasive, rapid, and cost-effective 53 sampling method that can be used to establish the distribution of this species. 54 Austropotamobius pallipes is protected ...

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mentioning

confidence: 99%

Field validation of an eDNA assay for the endangered white-clawed crayfishAustropotamobius pallipes

Atkinson

Carlsson

Ball

et al. 2019

Preprint

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“…In both cases, the maximum trout density coincides with the absence of mussels. Vaeben and Hollert (2015) showed that the most negative effects of crayfish are related to their increasing density in the riverbed, indicating the need to initiate their immediate removal. Both U. delphinus and A. anatina have undergone an equally intense decline in the Negro River; while both species are frequent in the Alberche River, coinciding with a lower presence of crayfish in the mussel beds.…”

Section: Discussionmentioning

confidence: 99%

“…According to Spanish legislation (Executive order 630/2013), many are considered invasive non-native species (NIS), and are included in the European Union strategy to combat NIS. Two exotic American crayfish (Pacifastacus leniusculus [Dana, 1852] and Procambarus clarkii [Girard, 1852]) are taxa of special concern (EU 1143and EU 1141/2016 as reported by Vaeben and Hollert (2015). In the Iberian Peninsula M. margaritifera (Mm) has not been in contact with crayfish species and thus has no self-protective measures, either active or passive.…”

Section: Introductionmentioning

confidence: 99%

“…Both produce cumulative effects in terms of the physical alteration of the riverbed (by excavation of galleries, removal of sediments or herbivory on submerged plants) and ecological changes in underwater communities (Crawford et al, 2006). Vaeben and Hollert (2015) showed that invasive crayfish in European rivers not only decimate populations of other benthic invertebrates, but also submerged plants, and epilithon, which are primary resources for trophic networks. They also showed how these NICs displace fish from their shelters and even prey on juveniles (Stenroth and Nyström, 2003;Peay et al, 2009;Gladman et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Assessment of endangered freshwater pearl mussel populations in the Northern Iberian Plateau in relation to non–native species: xenodiversity as a threat

Morales

2022

Anim. Biodiv. Conserv.

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In the last two decades, small populations of freshwater pearl mussels, Margaritifera margaritifera, have been recorded in Mediterranean rivers of the Iberian Northern Plateau. A survey was carried out in Castilla and León in 2018 to assess the development of populations of this species in all the rivers of known distribution and to update the threat classification. Thirty sections in the rivers Negro, Tera, Alberche and Águeda were positive for its presence, and another 50 stretches of seven rivers were negative. The species is currently distributed over about 22.5 km. Águeda and Tera populations have decreased dramatically in the last 14 years and are on the threshold of extinction. The Negro river supports the largest population, although the species has now disappeared in at least 61 % of the stretches that were inhabited in 2004. All populations showed very low densities and an ageing population structure, with no recruitment for decades. The presence of non-native invasive alien species (NIS) was higher than in a previous regional survey, with the signal crayfish representing the greatest threat. We observed changes in benthic microhabitats and direct predation of adults and glochidia conglutinates. In the Alberche River, in strict syntopy with M. margaritifera and two other mussel species, 10 NIS were detected. The current hydrological and ecological conditions in the Duero watershed support the settlement of exotic species to the disadvantage of native mollusks, which are more demanding in terms of microhabitats.

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“…This can affects the trophic chain at all levels, by competing with autochthonous species or predating them and perturbating the entire ecosystem functioning (Loureiro et al, 2015;Jackson et al, 2017;Lang et al, 2020). For example, several studies have shown that P. clarkii (Jackson et al, 2014;Loureiro et al, 2015;Lang et al, 2020), P. leniusculus (Jackson et al, 2014;Vaeßen and Hollert, 2015) and Faxonius virilis (formerly Orconectes virilis) (Jackson et al, 2014) can cause strong decreases in species richness of insect larvae and mollusks through predation after their introductions to a new location. Studies also suggest a decrease in the abundance and diversity of aquatic plants and animals is directly related to crayfish density (Gherardi and Acquistapace, 2007;Rodríguez-Pérez et al, 2015).…”

Section: Geographic Distribution Of the Haplotypesmentioning

confidence: 99%

Invasion and distribution of the redclaw crayfish, Cherax quadricarinatus, in Martinique

Baudry

Becking

Gout

et al. 2020

Knowl. Manag. Aquat. Ecosyst.

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The redclaw crayfish, Cherax quadricarinatus, was introduced to Martinique Island for aquaculture purposes in 2004, in an attempt to revitalize the freshwater crustacean aquaculture sector. In 2015, three wild populations were discovered during an electrofishing survey on fish diversity. In 2018, a specific crayfish survey was performed at night using spotlighting and baited traps at 34 sites throughout the island. The species was mostly found in the center and northern part of the island, specifically, a total of 105 specimens were captured in eight streams and five closed water bodies. We sequenced a 491 base-pair fragment of the COI gene to understand the invasion history and pathway from the presumed source population at the Mangatal hatchery. Among the eight haplotypes found, three were dominant, of which, two occurred in the Mangatal hatchery. As crayfish are sold alive, there is a high risk of further human-mediated introductions across the island hydrographic basins. Thus, the distribution of this species could rapidly expand throughout Martinique freshwater ecosystems, with ecological impacts on native communities yet to be determined and requiring urgent investigation.

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Impacts of the North American signal crayfish (Pacifastacus leniusculus) on European ecosystems

Cited by 24 publications

References 24 publications

Field validation of an eDNA assay for the endangered white-clawed crayfishAustropotamobius pallipes

Field validation of an eDNA assay for the endangered white-clawed crayfishAustropotamobius pallipes

Assessment of endangered freshwater pearl mussel populations in the Northern Iberian Plateau in relation to non–native species: xenodiversity as a threat

Invasion and distribution of the redclaw crayfish, Cherax quadricarinatus, in Martinique

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