#2259 · 🐟 fish
Western Mosquitofish
🇳🇱 Westelijk muskietenvisje ·Gambusia affinis
7 photos from iNaturalist (Creative Commons) · credits & licences
what is it?
The western mosquitofish ( Gambusia affinis ) is a species of freshwater fish, also known commonly, if ambiguously, as simply mosquitofish or by its generic name, Gambusia , or by the common name gambezi . There is also an eastern mosquitofish ( G. holbrooki ).
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
- No confirmed wild sightings in the Netherlands on iNaturalist: you'd have to travel for this one.
- 22,582 observations worldwide on iNaturalist.
- Scientifically named by Spencer Fullerton Baird in 1854 (172 years ago).
fact sheet
- English
- Western Mosquitofish
- Nederlands
- Westelijk muskietenvisje
- scientific name
- Gambusia affinis
- class
- Actinopterygii
- order
- Cyprinodontiformes
- family
- Poeciliidae
- IUCN Red List
- LC · least concern
- sightings in NL
- 0
- sightings worldwide
- 22,582
- GBIF records in NL
- 0
- weight
- —
- length
- —
- lifespan
- —
- named
- 1854 by Spencer Fullerton Baird
IUCN in Dutch: niet bedreigd. Blank means the sources don't say.
relatives· Poeciliidae
Sources: iNaturalist taxon 59115, Wikidata Q723904, GBIF 2350580, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.