Neogobius melanostomus (Pallas, 1814)

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English Round goby Status LU: established. 1st record: ~2010.
Lëtzebuergesch Schwaarzmond-Grondel Status Eur.: established.
Français Gobie à taches noires RA: ISEIA: A2, Black List. Harmonia+: n/a.
Deutsch Schwarzmund-Grundel Wikipedia: Wikipedia - English - Round goby Wikipedia - Français - Gobie à taches noires Wikipedia - Deutsch - Schwarzmund-Grundel Wikipedia - Nederlands - Zwartbekgrondel | Wikispecies: Wikispecies - Neogobius melanostomus
Nederlands Zwartbekgrondel Back to the list of vertebrates

Report the species

Report Neogobius melanostomus to the National Museum of Natural History.

Brief description

Little maile round goby caught in HollandNeogobius melanostomus (Pallas, 1814) is a bottom dwelling fish that lives in slow brackish and fresh waters. It is typically found near rocky substrates, but also in fine gravel and sandy bottoms. The round goby is a voracious feeder of benthic freshwater invertebrates (e.g. bivalves) and small fishes. It has been reported to reduce populations of native fish through predation and food competition, its main advantage being its ability to feed in darkness. Adults may occupy the prime spawning areas and defend those sites aggressively, keeping natives out. The round goby may rapidly become a dominant fish species and may be responsible for fish species displacement and for the impoverishment of aquatic communities (Branquart & Verreycken 2014).

Status and distribution in Luxembourg

Records of Neogobius melanostomus (Pallas, 1814) in Luxembourg. Data source: Recorder-Lux, iNaturalist & GBIF, 2024-05-22.

Neogobius melanostomus (Pallas, 1814) is known to colonise the Luxembourg part of the Moselle river since around 2010. Together with Neogobius kessleri, the species was sampled regulary in the lower Sauer in the last years; in 2017 it was sampled in the Our (Dohet 2017).

On 27th July 2015, a parliamentary question was raised in the Luxembourg parliament about the invasion of Neogobius species in the Moselle river. This was echoed in the daily newspaper Tageblatt on the same day (Wildschutz 2015).

The distribution map is incomplete because records still have to be entered into the Recorder-Lux database (MNHNL, iNaturalist & GBIF 2019).

Risk assessment

ISEIA protocol

A2 (3+3+3+2) = Black List (Ries et al. 2014: 199).

Harmonia+ protocol

Not assessed yet.

Natural range and places of introduction

Worldwide distribution


    • Branquart, E. & H. Verreycken, 2014. Harmonia database: Neogobius melanostomus (Pallas, 1814). Harmonia version 1.2, Belgian Forum on Invasive Species. URL: [accessed on 2019-10-24]
    • CABI, 2019. Neogobius melanostomus (Pallas, 1814). In: Invasive Species Compendium. Wallingford, UK: CAB International. URL: [accessed 2020-04-22]
    • Dohet, A., 2017. Personal communication. LIST.
    • MNHNL, 2000-. Neogobius melanostomus (Pallas, 1814) in Recorder-Lux, database on the natural heritage of the Grand Duchy of Luxembourg. Musée national d’histoire naturelle, Luxembourg. URL: [Accessed 2019-10-24]
    • MNHNL, iNaturalist & GBIF, 2019. Neogobius melanostomus (Pallas, 1814) in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: [Accessed 2019-10-24]
    • 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]
    • Wildschutz, N., 2015. Grundel-Plage in der Mosel. Tageblatt online 27.07.2015. URL: [2018.04.13]

 Page content last updated on 2023-01-24. Last proofread by Caroline Grounds on 2019-11-27.