#2145 · 🐟 fish
Topmouth Gudgeon
🇳🇱 Blauwband ·Pseudorasbora parva
8 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Seotaro · CC BY-SA 4.0
- 2. © kary · CC BY-NC 4.0
- 3. © Yurij Ivancea · CC BY-NC 4.0
- 4. © sharkdevotee · CC BY-NC 4.0
- 5. © Tse Chung Yi · CC BY-NC 4.0
- 6. © H.T.Cheng · CC BY-NC 4.0
- 7. © Karim Haddad · CC BY 4.0
- 8. © Ivan Pancic · CC BY-NC 4.0
what is it?
Stone moroko (also known as topmouth gudgeon ), Pseudorasbora parva , is a fish belonging to the Cyprinid family, native to Asia, but introduced and now considered an invasive species in Europe. 5 cm long.
base stats
Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).
fun facts
- Spotted 6 times in the Netherlands on iNaturalist.
- 2,374 observations worldwide on iNaturalist.
- Scientifically named by Coenraad Jacob Temminck in 1846 (180 years ago).
- Not originally Dutch: it was introduced to the Netherlands.
fact sheet
- English
- Topmouth Gudgeon
- Nederlands
- Blauwband
- scientific name
- Pseudorasbora parva
- class
- Actinopterygii
- order
- Cypriniformes
- family
- Gobionidae
- IUCN Red List
- LC · least concern
- in NL
- introduced
- sightings in NL
- 6
- sightings in Europe
- 936
- sightings worldwide
- 2,374
- GBIF records in NL
- 1,802
- weight
- —
- length
- —
- lifespan
- —
- named
- 1846 by Coenraad Jacob Temminck
IUCN in Dutch: niet bedreigd. Blank means the sources don't say.
relatives· Gobionidae
Sources: iNaturalist taxon 118880, Wikidata Q583540, GBIF 2362868, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.