Oncorhynchus mykiss (Walbaum, 1792)

English Rainbow trout ISEIA: C2
Lëtzebuergesch Reeboufrell 1 EASIN
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Report the species

Report Oncorhynchus mykiss to the National Museum of Natural History.

Importance and distribution in Luxembourg

Distribution map of Oncorhynchus mykiss Walbaum, 1792 in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.26.

This fish species was introduced in Luxembourg on 2nd July 1887 in the Canacherbach (Feltgen 1902). During the river inventory of 1996/1997 the Rainbow trout was found in 33 spots. During a similar inventory in 2005, the species was only documented in two rivers: the Lower Syre (3 individuals) and the Reierbaach in the vicinity of Lasauvage (49 indivduals). The latter population indicates natural reproduction in the Reierbaach, which happens rarely in Europe (Administration de la Gestion de l’Eau 2010).

The decline of the species in Luxembourg is due to the fact that introduction of the Rainbow trout was reduced considerably with, for example, a total ban in border rivers since 1986 (Administration de la Gestion de l’Eau 2010).

Risk assessment

ISEIA protocol: C2 (1+2+1+1) (Ries et al. 2014: 199).

Bibliography concerning Luxembourg

  • 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.
  • Feltgen, E. (1902): Vademecum des Luxemburger Fischereiliebhabers. – P. Worré-Mertens, Luxemburg: 148 S.
  • 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.
  • 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]

Suggested citation of this webpage

Ries, C. & M. Pfeiffenschneider (Eds.), 2019. Oncorhynchus mykiss (Walbaum, 1792). In: neobiota.lu - Invasive Alien Species in Luxembourg. URL: https://neobiota.lu/oncorhynchus-mykiss/ [26.08.2019].

 Last updated on Friday, April 13, 2018.


  1. Cf. Klees 1981: 26.