Red swamp crayfish	Status LU: absent.
	Roude Suppekriibs	Status Eur.: established. IAS of EU concern (2016).
	Écrevisse de Louisiane	RA: ISEIA: A0, Alert List.
	Roter Amerikanischer Sumpfkrebs	Wikipedia: | Wikispecies: | CABI
	Rode rivierkreeft	Back to the list of invertebrates

Brief description

Procambarus clarkii (Girard, 1852) is a species of cambarid freshwater crayfish, native to northern Mexico, and southern and southeastern United States, but also introduced elsewhere, where it is often an invasive pest. P. clarkii is typically dark red, with long claws and head, small or no spines on the sides of its carapace just below the head, and rows of bright red bumps on the front and side of the first leg (Wikipedia contributors 2020).

The red swamp crayfish is most commonly found in warm fresh water, such as slowly flowing rivers, marshes, reservoirs, irrigation systems and rice paddies. It is considered to be the most ecologically plastic species in the order Decapoda, and is able to grow quickly even in only seasonally present water, being able to tolerate dry spells of up to four months. The red swamp crayfish grows quickly, and is capable of reaching weights in excess of 50 g, and sizes of 5.5–12 cm long. It is also able to tolerate slightly saline water, which is unusual for a crayfish. Additionally, P. clarkii are physiologically capable of tolerating relatively low dissolved oxygen concentrations. The average lifetime of Procambarus clarkii is five years (Wikipedia contributors 2020).

The burrowing activities of the red swamp crayfish can lead to damage to water courses and to crops, particularly rice, and its feeding can disrupt native ecosystems. It may out-compete the native crayfish species, and is a vector for the crayfish plague fungus Aphanomyces astaci, for crayfish virus vibriosis, and a number of worms parasitic on vertebrates. Their burrowing activities may also be a threat to civil infrastructure such as storm ponds and levees (Wikipedia contributors 2020).

Status and distribution in Luxembourg

There is no documented occurrence of Procambarus clarkii (Girard, 1852) in Luxembourg yet (MNHNL, iNaturalist & GBIF 2020).

Risk assessment

ISEIA protocol

A0 (3+3+3+3) = Alert List (Ries et al. 2017: 68).

Harmonia+ protocol

Not assessed yet.

Worldwide distribution

Bibliography

• CABI, 2019. Procambarus clarkii. In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-03-13]
• MNHNL, iNaturalist & GBIF, 2020. Procambarus clarkii in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [accessed 2020-03-13]
• Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]
• Wikipedia contributors, 2020. Procambarus clarkii, Wikipedia, The Free Encyclopedia, 3 February 2020, 18:43 UTC, <https://en.wikipedia.org/w/index.php?title=Procambarus_clarkii&oldid=939000553> [accessed 2020-03-13]

 Page content last updated on 2021-05-14.

	n/a	Status LU: established. 1st record: 1991.
	Tiger-Floukriibs	Status Eur.: established.
	n/a	RA: ISEIA: C2. Harmonia+: n/a.
	Gefleckter Flussflohkrebs	Wikipedia: n/a (2020) | Wikispecies: n/a (2020)
	Tijgervlokreeft	Back to the list of invertebrates

Brief description

Gammarus tigrinus Sexton, 1939 has eliminated some native species in parts of the river Rhine and the Baltic Sea; it is frequently a superior predator in comparison to indigenous species.

See the copyrighted picture at cabi.org

Status and distribution in Luxembourg

Gammarus tigrinus Sexton, 1939 was first documented on 22 May 1991 in the Moselle river across from Bech-Kleinmacher, municipality of Schengen (Massard & Geimer 1992). Dhur (1993) showed that Gammarus tigrinus was present in the Moselle all the way from Schengen to Wasserbillig.

There is no distribution map available because no data has been entered into the Recorder-Lux database so far (MNHNL, iNaturalist & GBIF 2019).

Risk assessment

ISEIA protocol

C2 (3+1+3+1) (Ries et al. 2017: 68).

Harmonia+ protocol

Not assessed yet.

Worldwide distribution

Bibliography

• CABI, 2019. Gammarus tigrinus. In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-03-13]
• Dhur, G., 1993. Étude des espèces d’invertébrés immigrées ou introduites dans la Moselle luxembourgeoise et dans les écosystèmes aquatiques qui en dépendent. Historique et répartition actuelle. Centre univ. Luxemb., Dép. Form. pédag., mém. sci., 213 pp.
• Dhur, G. & J.A. Massard, 1995. Etude historique et faunistique des Invertébrés immigrés ou introduits dans la Moselle luxembourgeoise et ses affluents. Bull. Soc. Nat. luxemb. 96: 127-156. [PDF 1896 KB]
• Massard, J.A. & G. Geimer, 1992. Découverte de Gammarus tigrinus Sexton, 1939 dans la Moselle frontalière entre le Luxembourg et l’Allemagne (Crustacea: Amphipoda). Bull. Soc. Nat. luxemb. 93: 195-198. [PDF 173 KB]
• Meisch, C. & J.A. Massard, 2015. Les recherches sur les crustacés (Crustacea) du Luxembourg : aperçu historique. Bull. Soc. Nat. luxemb. 116: 381-390. [PDF 1,22 MB]
• MNHNL, iNaturalist & GBIF, 2019. MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-24]
• Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]

 Page content last updated on 2023-09-27. Last proofread by Caroline Grounds on 2019-12-10.

	Killer shrimp	Status LU: present. 1st record: 2006.
	Killercrevette	Status Eur.: established.
	Crevette tueuse	RA: ISEIA: A1, Black List. Harmonia+: 0,50
	Großer Höckerflohkrebs	Wikipedia: | Wikispecies: n/a (2020)
	Pontokaspische Vlokreeft	Back to the list of invertebrates

Brief description

Dikerogammarus villosus (Sowinsky, 1894) is a freshwater amphipod originating from the Ponto-Caspian region. Its range expansion began in the late twentieth century and was associated with re-opening of the shipping canal between the Danube River and Main River (Vaate et al., 2002). Large body size, extremely voracious predatory behaviour, high fecundity and wide environmental tolerance make this amphipod a very successful invader of European waters. Invasion of D. villosus often results in significant local reduction or even extinction of native amphipods and other macroinvertebrates on which it preys (CABI 2019).

D. villosus is included on the list of the 100 most invasive exotic species of Europe (Devin & Beisel 2009).

Status and distribution in Luxembourg

Dikerogammarus villosus (Sowinsky, 1894) was first recorded in 2006: several specimen collected on 2006-05-12 in the river Moselle near Stadtbredimus were discovered in the Museums collections in July 2021 (Weigand in litt.). Another observation was made on 2018-06-20 in the river Sure near Wasserbillig / Langsur (MNHNL, iNaturalist & GBIF 2021). Accordingly, the Killer shrimp has been moved from the Alert List (Ries et al. 2017: 68) to the Black List.

Risk assessment

ISEIA protocol

Following the discovery of the Killer shrimp in July 2021 in the Museums collections (Weigand in litt.), the species was reassessed on 2021-07-29 to A1 (3+2+3+3) = Black List by C. Ries. Initial assessment: A0 (3+2+3+3) = Alert List (Ries et al. 2017: 68).

Harmonia+ protocol

Overall risk score 0,50 = (Overall Invasion score 0,82 x Overall Impact score 0,61) (evaluated by Tiago De Sousa, Manou Pfeiffenschneider and Roland Proess).

Worldwide distribution

Bibliography

• CABI, 2019. Dikerogammarus villosus. In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-03-13]
• Devin, S. & J.-N. Beisel, 2009. Dikerogammarus villosus (Sowinsky), killer shrimp (Gammaridae, Crustacea). In: Handbook of alien species in Europe. Springer, 309.
• MNHNL, iNaturalist & GBIF, 2021. Dikerogammarus villosus in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [accessed 2020-03-13]
• Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]

 Page content last updated on 2024-03-06. Last proofread by Caroline Grounds on 2019-12-10.

	New Zealand mud snail	Status LU: established. 1st record: 1996.
	Neiséilännesch Zwergdeckelschleek	Status Eur.: established.
	Hydrobie des antipodes	RA: ISEIA: A3, Black List. Harmonia+: n/a.
	Neuseeländische Zwergdeckelschnecke	Wikipedia: | Wikispecies: n/a (2020) | CABI
	Jenkins’ waterhoren	Back to the list of invertebrates

Brief description

Potamopyrgus antipodarum (Gray, 1843) is an aquatic snail native to New Zealand. It has been introduced to Europe, North America, Australia, Iraq, Turkey and Japan. In several ecosystems it is considered invasive because it becomes highly abundant, impacting the structure and function of the invaded ecosystems. Females are parthenogenetic, meaning they can reproduce without males, so a population can be founded by a single female. Most the non-native populations are female. There can be up to six generations per year, with an average number of 230 offspring per adult per year. P. antipodarum can also tolerate desiccation for several days, which allows for rapid spread (such as by birds and fishing tools) throughout different aquatic ecosystems. In several countries, including Spain, USA and Australia, it is considered as an invasive species (CABI 2019).

Status and distribution in Luxembourg

Potamopyrgus antipodarum (Gray, 1843) was first documented by Gerhard Weitmann and Klaus Groh on 17 June 1996 in the Moselle river in the municipality of Remich (MNHNL 2000-).

Currently, 52 records of the New Zealand mud snail are accessible through the MNHNL-mdata portal (MNHNL, iNaturalist & GBIF 2019).

Risk assessment

ISEIA protocol

A3 (3+2+3+3) = Black List (Ries et al. 2017: 68).

Harmonia+ protocol

Not assessed yet.

Worldwide distribution

Bibliography

• CABI, 2019. Potamopyrgus antipodarum (Gray, 1843). In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-04-21]
• MNHNL, 2000-. Potamopyrgus antipodarum (Gray, 1843) in Recorder-Lux, database on the natural heritage of the Grand Duchy of Luxembourg. Musée national d’histoire naturelle, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-24]
• MNHNL, iNaturalist & GBIF, 2019. Potamopyrgus antipodarum (Gray, 1843) in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-24]
• Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]

 Page content last updated on 2020-04-21.

	Chinese pond mussel	Status LU: absent.
	Chinesesch Weiermuschel	Status Eur.: established.
	Anodonte chinois	RA: ISEIA: C0. Harmonia+: n/a.
	Chinesische Teichmuschel	Wikipedia: | Wikispecies: n/a (2020) | CABI
	n/a	Back to the list of invertebrates

Brief description

Sinanodonta woodiana (Lea, 1834) is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. The Chinese pond mussel can reach sizes of up to 30 cm and an age of 12–14 years. Yet, they can reproduce in their first year while only 3–4 cm in size. This large freshwater mussel is a habitat generalist with high silt tolerance. It is established worldwide despite having, like all unionid mussels, an obligatory parasitic stage (glochidium), which must encyst on host fish. The species is a broad host generalist, which can complete its development on all fish species tested, both coinvasive and native. The presence of S. woodiana can seriously influence indigenous unionid populations. Sinanodonta woodiana’s great success is attributed to importation and commercialization of Asian carp, its native host. S. woodiana was introduced in Tuscany both inadvertently, and for artificial pearl production. The species is also sold in garden centers as biofiltration for artificial ponds (CABI 2019).

Status and distribution in Luxembourg

Sinanodonta woodiana (Lea, 1834) has not yet been observed in Luxembourg (MNHNL, iNaturalist & GBIF 2020).

Risk assessment

ISEIA protocol

C0 (2+1+2+1) (Ries et al. 2017: 68).

Harmonia+ protocol

Not assessed yet.

Worldwide distribution

Bibliography

• CABI, 2019. Sinanodonta woodiana (Lea, 1834). In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-04-21]
• MNHNL, iNaturalist & GBIF, 2020. Sinanodonta woodiana (Lea, 1834) in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2020-04-21]
• Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]

 Page content last updated on 2020-04-21.

	n/a	Status LU: established. 1st record: 1996.
	Asiatesch Kuerfmuschel	Status Eur.: established.
	Corbicule asiatique	RA: ISEIA: A2, Black List. Harmonia+: n/a.
	Feingerippte Körbchenmuschel	Wikipedia: | Wikispecies: n/a (2020) | CABI
	Toegeknepen korfmossel	Back to the list of invertebrates

Brief description

Corbicula fluminalis (O.F. Müller, 1774) is a species of freshwater clam, an aquatic bivalve mollusk in the family Cyrenidae. This species is distinct from, but often confused with, the rather similar species Corbicula fluminea. Even though both species are native to Asia, they are both present as introduced species in the United States and Europe, and they are both commonly known as “Asian clams” (Wikipedia contributors 2019).

The original distribution area of Corbicula fluminalis includes the Near East (the type material came from the Euphrates), Central Asia (Uzbekistan) and the Caucasus (Azerbaijan) and North Africa. The animals prefer to live on sandy and muddy river bottoms. Corbicula fluminalis is found today in almost all major Central European rivers, often sympatric with Corbicula fluminea (Wikipedia Editor 2019).

Status and distribution in Luxembourg

In Luxembourg, Corbicula fluminalis (O.F. Müller, 1774) was first found by Klaus Groh on 17 June 1996 in the Moselle river in the municipality of Remich (MNHNL 2000-, Bachmann & Usseglio-Polatera 1999).

An identification sheet of the species has been published by the MECDD in French and German.

Risk assessment

ISEIA protocol

A2 (3+3+3+3) = Black List (Ries et al. 2017: 68).

Harmonia+ protocol

Not assessed yet.

Worldwide distribution

Bibliography

• Bachmann V. & P. Usseglio-Polatera, 1999. Contribution of the macrobenthic compartment to the oxygen budget of a large regulated river: the Mosel. Hydrobiologia. 410 (17), 39-46.
• CABI, 2019. Corbicula fluminalis (O.F. Müller, 1774). In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-04-21]
• MNHNL, 2000-. Corbicula fluminalis (O.F. Müller, 1774) in Recorder-Lux, database on the natural heritage of the Grand Duchy of Luxembourg. Musée national d’histoire naturelle, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-24]
• MNHNL, iNaturalist & GBIF, 2019. Corbicula fluminalis (O.F. Müller, 1774) in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-24]
• Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]
• Wikipedia Bearbeiter, 2019. Feingerippte Körbchenmuschel. In: Wikipedia, Die freie Enzyklopädie. Bearbeitungsstand: 20. Dezember 2019, 15:19 UTC. URL: https://de.wikipedia.org/w/index.php?title=Feingerippte_K%C3%B6rbchenmuschel&oldid=195082277 [accessed 2020-04-21]
• Wikipedia contributors, 2019. Corbicula fluminalis, Wikipedia, The Free Encyclopedia, 10 April 2019, 21:39 UTC, <https://en.wikipedia.org/w/index.php?title=Corbicula_fluminalis&oldid=891900774> [accessed 2020-04-21]

 Page content last updated on 2023-08-17.

	Asian clam	Status LU: established. 1st record: 1996.
	Kleng asiatesch Kuerfmuschel	Status Eur.: established.
	Palourde asiatique	RA: ISEIA: A2, Black List. Harmonia+: n/a.
	Asiatische Körbchenmuschel	Wikipedia: | Wikispecies: n/a (2020) | CABI
	Aziatische korfmossel	Back to the list of invertebrates

Brief description

Corbicula fluminea (O.F. Müller, 1774) is an inland water, filter-feeding bivalve native to southeast Asia but causing numerous problems in its new range of distribution in the Americas, Europe and Australia. C. fluminea spreads when it is attached to boats or carried in ballast water, used as bait, sold through the aquarium trade and carried with water currents. Its reproductive success and ability to spread rapidly has resulted in this species having one of the most rapid expansions of any non-native species in North America. Before the invasion of the zebra mussel Dreissena polymorpha, in North America, C. fluminea was described by McMahon (1983) as ‘one of the most important molluscan pest species ever introduced into the United States’. Aldridge and Muller (2001) review the potential impacts that the spread of C. fluminea may have on British industry and aquatic systems. In the DAISIE project, C. fluminea is listed on the 100 worst invasive species (CABI 2019).

Status and distribution in Luxembourg

In Luxembourg, Corbicula fluminea (O.F. Müller, 1774) was first documented by Klaus Groh on 17 June 1996 in the Moselle river in the municipality of Remich (MNHNL 2000-). It was expected by 1995 that the species would soon appear in the Moselle (Dhur & Massard 1995: 150).

An identification sheet of the species has been published by the MECDD in French and German.

Risk assessment

ISEIA protocol

A2 (3+3+3+3) = Black List (Ries et al. 2017: 68).

Harmonia+ protocol

Not assessed yet.

Worldwide distribution

Bibliography

• CABI, 2019. Corbicula fluminea (O.F. Müller, 1774). In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-04-21]
• Dhur, G. & J.A. Massard, 1995. Étude historique et faunistique des Invertébrés immigrés ou introduits dans la Moselle luxembourgeoise et ses affluents. Bull. Soc. Nat. luxemb. 96: 127-156. [PDF 1896 KB]
• MNHNL, 2000-. Corbicula fluminea (O.F. Müller, 1774) in Recorder-Lux, database on the natural heritage of the Grand Duchy of Luxembourg. Musée national d’histoire naturelle, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-24]
• MNHNL, iNaturalist & GBIF, 2019. Corbicula fluminea (O.F. Müller, 1774) in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-24]
• Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]

 Page content last updated on 2023-08-17.

	Zebra mussel	Status LU: established. 1st record: <1892.
	Zebramuschel	Status Eur.: established.
	Moule zébrée	RA: ISEIA: A2, Black List. Harmonia+: n/a.
	Zebramuschel	Wikipedia: | Wikispecies: n/a | CABI
	Driehoeksmossel	Back to the list of invertebrates

Brief description

To date, D. polymorpha has been the most aggressive freshwater invader worldwide. Dreissenids are the only freshwater bivalves that attach to hard substrates in high densities and have a planktonic larval stage. This life history facilitates their abilities as invaders, and allows them to become enormously abundant when introduced into a new water body. Once introduced their populations can grow rapidly, and the total biomass of a population can exceed 10 times that of all other native benthic invertebrates. D. polymorpha is native to the drainage basins of the Black, Caspian and Aral Seas. During the nineteenth century its range has expanded westward to most of western Europe, the UK, and North America, where it is found in the Great Lakes and all major river drainages east of the Rocky Mountains and causes multiple economic impacts on fisheries, aquaculture, water attractions and aquatic transport (CABI 2019).

Status and distribution in Luxembourg

In Luxembourg, Dreissena polymorpha (Pallas, 1771) was first mentioned by Victor Ferrant in 1892 as occurring in the Moselle river (Ferrant 1892; Dhur & Massard 1995; MNHNL 2000-).

An identification sheet of the species has been published by the MECDD in French and German.

Risk assessment

ISEIA protocol

A2 (3+3+3+3) = Black List (Ries et al. 2017: 68).

Harmonia+ protocol

Not assessed yet.

Worldwide distribution

Bibliography

• CABI, 2019. Dreissena polymorpha (Pallas, 1771). In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-04-21]
• Dhur, G. & J.A. Massard, 1995. Étude historique et faunistique des Invertébrés immigrés ou introduits dans la Moselle luxembourgeoise et ses affluents. Bull. Soc. Nat. luxemb. 96: 127-156. [PDF 1896 KB]
• Ferrant, V., 1892. Beiträge zur Molluskenfauna des Grossherzogtums Luxemburg (Schluss). Bull. Soc. Nat. luxemb. 2: 21-26. [PDF 419 KB]
• MNHNL, 2000-. Dreissena polymorpha (Pallas, 1771) in Recorder-Lux, database on the natural heritage of the Grand Duchy of Luxembourg. Musée national d’histoire naturelle, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-24]
• MNHNL, iNaturalist & GBIF, 2019. Dreissena polymorpha (Pallas, 1771) in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-24]
• Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]

 Page content last updated on 2023-08-17.

	Chinese mitten crab	Status LU: casual. 1st record: 1978.
	Chinesesch Wollhandkrabb	Status Eur.: established. IAS of EU concern (2016).
	Crabe chinois	RA: ISEIA: C0. Harmonia+: n/a.
	Chinesische Wollhandkrabbe	Wikipedia: | Wikispecies: | IUCNGISD | CABI
	Chinese wolhandkrab	Back to the list of invertebrates

Brief description

Eriocheir sinensis H. Milne-Edwards, 1853 is a migrating crab which has invaded Europe and North America from its native region of Asia. During its mass migrations it contributes to the temporary local extinction of native invertebrates. It modifies habitats by causing erosion due to its intensive burrowing activity and costs fisheries and aquaculture several hundreds of thousands of dollars per year by consuming bait and trapped fish, as well as by damaging gear (GISD 2019).

IAS of Union concern

In 2016, Eriocheir sinensis H. Milne-Edwards, 1853 was added to the list of invasive alien species of Union concern (Anonymous 2016) which implies that member states shall take all necessary steps to prevent it’s unintentional introduction or spread.

Status and distribution in Luxembourg

There is no distribution map available because no data has been entered into the Recorder-Lux database so far (MNHNL, iNaturalist & GBIF 2019).

Eriocheir sinensis H. Milne-Edwards, 1853 was first documented in Luxembourg in 1978 by Claude Meisch who found one individual in a pond of the Haff Réimech nature conservation reserve, municipality of Schengen (Meisch 1978): “It can be regarded as relatively common in the Moselle valley. A single specimen was found in the pond area. It must be regarded as an aberration, since the ponds do not correspond to its normal location”.

Field research by Dhur and Massard in the years 1992-1993 did not find Eriocheir sinensis in the ecosystem of the border Moselle (Dhur & Massard 1995): “It seems likely that currently the species, even if its presence seems confirmed for the period before 1960, no longer populates the waters of the Luxembourg Moselle. A call to fishermen in 1994 (Massard 1994)¹ for them to report a possible presence of Eriocheir did not produce any results. In fact, after its expansion phase, Eriocheir has become considerably scarcer over the past forty years in most of the colonised areas of northern France and the Benelux (Vigneux et al. 1993). No E. sinensis stations are indicated in Lorraine by Vigneux et al. (1993), neither for the period before 1960 nor for the one after.”

On 4 March 2020, two adult crabs of the species Eriocheir sinensis (1 male and 1 female) were found by an inhabitant of the ‘Petite rue du Moulin’ in Esch-sur-Alzette.The crabs were brought to the National Museum of Natural History.

Risk assessment

ISEIA protocol

C0 (2+1+2+2) (Ries et al. 2017: 68).

Harmonia+ protocol

Not assessed yet.

Worldwide distribution

Bibliography

• Anonymous, 2016. Commission implementing regulation (EU) 2016/1141 of 13 July 2016 adopting a list of invasive alien species of Union concern pursuant to Regulation (EU) No 1143/2014 of the European Parliament and of the Council. Official Journal of the European Union L 189: 4-5.
• CABI, 2014. Eriocheir sinensis H. Milne-Edwards, 1853 [original text by Stephan Gollasch & Paul Clark]. In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2019-11-25]
• Dhur, G. et J. A. Massard, 1995. Étude historique et faunistique des Invertébrés immigrés ou introduits dans la Moselle luxembourgeoise et ses affluents. Bull. Soc. Nat. luxemb. 96: 127-156. [PDF]
• GISD, 2019. Species profile: Eriocheir sinensis in the Global Invasive Species Database. URL: http://www.iucngisd.org/gisd/species.php?sc=38 [accessed 2019-11-26]
• Massard, J. A., 1994. Gesucht: die Chinesische Wollhandkrabbe. Lëtzebuerger Journal 1994, Nr. 94 (19. Mai): 10.
• Meisch, C., 1978. Nachweis der Wollhandkrabbe (Eriocheir sinensis). P. 40 in: Baggerweieren Remerschen/Wentreng: Erhuelung an Naturschutz oder Ausverkaf vun enger Landschaft? Jeunes et environnement, Luxembourg. [PDF]
• Meisch, C. & J.A. Massard, 2015. Les recherches sur les crustacés (Crustacea) du Luxembourg : aperçu historique. Bull. Soc. Nat. luxemb. 116: 381-390. [PDF 1,22 MB]
• MNHNL, iNaturalist & GBIF, 2019. MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [Accessed 2019-10-25]
• Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]
• Vigneux, E., P. Keith & P. Noël, 1993. Atlas préliminaire des Crustacés Décapodes d’eau douce de France. Coll. Patrimoines Naturels 14, S.F.F., 8.1.M.M.-M.N.H.N., Min. Env., Paris, 55 p.

 Page content last updated on 2020-03-12. Last proofread by Caroline Grounds on 2019-12-10.

1. This call also appeared in other newspapers and periodicals[↩]

	Caspian mud shrimp	Status LU: (?). 1st record: 1992.
	Kaspesch Bulliscrevette	Status Eur.: established.
	n/a	RA: ISEIA: B3, Watch List. Harmonia+: n/a.
	Süßwasser-Röhrenkrebs	Wikipedia: | Wikispecies: n/a (2020) | CABI
	Kaspische slijkgarnaal	Back to the list of invertebrates

Brief description

Chelicorophium curvispinum (G.O. Sars, 1895) (Syn.: Corophium curvispinum) These small crustaceans construct mud tubes on hard materials and are nocturnal filterers. Densities can be extremely high (over 200,000 individuals per m²). They are often associated with seaweeds. With their lifestyle, the crustaceans can provoke important ecological changes in occupied areas.

See the copyrighted pictures at cabi.org

Status and distribution in Luxembourg

Chelicorophium curvispinum (G.O. Sars, 1895) was first documented by Guy Duhr in August 1992 in the Moselle near Stadtbredimus, municipality of Stadtbredimus (Dhur 1993 cited in Dhur & Massard 1995: 138).

Currently, there are no records of the species in the mdata.mnhn.lu portal (MNHNL, iNaturalist & GBIF 2020).

Risk assessment

ISEIA protocol

B3 (3+1+3+2) = Watch List (Ries et al. 2017: 68).

Harmonia+ protocol

Not assessed yet.

Worldwide distribution

Bibliography

• CABI, 2019. Chelicorophium curvispinum. In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: www.cabi.org/isc [accessed 2020-03-13]
• Duhr, G., 1993. Étude des espèces d’invertébrés immigrés ou introduites dans la Moselle luxembourgeoise et dans les écosystèmes aquatiques qui en dépendent. Historique et répartition actuelle. Centre univ. Luxemb., Dép. Form. pédag., mém. sci. 213 p.
• Dhur, G. & J. A. Massard, 1995. Étude historique et faunistique des Invertébrés immigrés ou introduits dans la Moselle luxembourgeoise et ses affluents. Bull. Soc. Nat. luxemb. 96 : 127-156. [PDF 1896 KB]
• Meisch, C. & J.A. Massard, 2015. Les recherches sur les crustacés (Crustacea) du Luxembourg : aperçu historique. Bull. Soc. Nat. luxemb. 116: 381-390. [PDF 1,22 MB]
• MNHNL, iNaturalist & GBIF, 2020. Chelicorophium curvispinum in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: https://mdata.mnhn.lu [accessed 2020-03-13]
• Ries, C., A. Arendt, C. Braunert, S. Christian, A. Dohet, A. Frantz, G. Geimer, M. Hellers, J. A. Massard, X. Mestdagh, R. Proess, N. Schneider & M. Pfeiffenschneider, 2017. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of invertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 119: 63-70. [PDF 360 KB]

 Page content last updated on 2020-04-28. Last proofread by Caroline Grounds on 2019-12-05.