Pseudorasbora parva Temminck & Schlegel, 1846

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English Topmouth Gudgeon Status LU: established. 1st record: 2005.
Lëtzebuergesch Asiatesche Goujong1 Status Eur.: established. IAS of EU concern (2016).
Français Goujon asiatique RA: ISEIA: C1. Harmonia+: n/a.
Deutsch Blaubandbärbling Wikipedia: Wikipedia - English - Topmouth Gudgeon Wikipedia - Français - Goujon asiatiqueo Wikipedia - Deutsch - Blaubandbärbling Wikipedia - Nederlands - Blauwband | Wikispecies: Wikispecies - Pseudorasbora parva | CABI
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Report the species

Report Pseudorasbora parva to the National Museum of Natural History.

Brief description

Pseudorasbora parva(edited version)Pseudorasbora parva Temminck & Schlegel, 1846 typically inhabits eutrophic ponds, ditches and muddy brooks rich in aquatic vegetation; it is sometimes found in larger streams and lakes. It is very tolerant to a wide range of environmental conditions. This highly invasive fish in Europe is a healthy host for a deadly, non-specific pathogen (Sphaerothecum destruens) that poses a threat to the conservation of European fish diversity. Moreover, it consumes large quantities of planktonic crustaceans which results in a high exploitative competition with native fish species (e.g. indigenous gudgeon) and an increase in the biomass of phytoplankton, and further in increasing eutrophication of water bodies (Anseeuw et al. 2007).

IAS of Union concern

In 2016, Pseudorasbora parva Temminck & Schlegel, 1846 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

Records of Pseudorasbora parva Temminck & Schlegel, 1846 in Luxembourg. Data source: Recorder-Lux, iNaturalist & GBIF, 2024-07-14.

Pseudorasbora parva Temminck & Schlegel, 1846 was first detected in Luxembourg during the systematic river inventory of 2005, when it was found in the upstream dam of the Upper Sauer Lake in Bavigne (Administration de la gestion de l’eau 2010).


Action plan

Finalised Action Plan for Pseudorasbora parva (De Sousa 2020)

Risk assessment

ISEIA protocol

C1 (1+1+1+1) (Ries et al. 2014: 199).

Harmonia+ protocol

Not assessed yet.

Worldwide distribution

Fact sheet

PDF fact sheet of the Nature and Forestry Administration: FR | DE


  • Administration de la gestion de l’eau, 2010. Les poissons au Luxembourg, Cartographie des poissons, lamproies et écrevisses du grand-duché de Luxembourg, 213 pp.
  • 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.
  • Anseeuw, D., E. Branquart, F. Lieffrig, J.-C. Micha, D. Parkinson & H. Verreycken, 2007. Harmonia database: Pseudorasbora parva Temminck & Schlegel, 1846. Harmonia version 1.2, Belgian Forum on Invasive Species. URL: [accessed 2020-04-23]
  • CABI, 2019. Pseudorasbora parva Temminck & Schlegel, 1846. In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: [accessed 2020-04-22]
  • De Sousa, T., 2020. Plan d’action pour espèces exotiques envahissantes au Grand-Duché de Luxembourg: le Goujon asiatique, Pseudorasbora parva (Temminck & Schlegel, 1846). Version 2020-09-04. Administration de la nature et des forêts, Luxembourg. 21 pp.
  • Klees, H., 1981. Luxemburger Tiernamen. Beiträge zur luxemburgischen Sprach- und Volkskunde XIV. Institut grand-ducal, Section de linguistique, de folklore et de toponymie. 2. Aufl. 131 S. Imprimerie Pierre Linden, Luxembourg.
  • MNHNL, iNaturalist & GBIF, 2020. Pseudorasbora parva Temminck & Schlegel, 1846 in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: [accessed 2020-04-22]
  • Ries, C., M. Pfeiffenschneider, Engel, E., J.-C. Heidt & M. Lauff, 2014. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of vertebrates in Luxembourg. Bull. Soc. Nat. luxemb. 115: 195-201. [PDF 247 KB]

 Page content last updated on 2023-04-05. Last proofread by Caroline Grounds on 2019-11-28.

  1. Goujong, Gründling cf. Klees 1981: 27.[]