#2202 · 🐟 fish
Brook Stickleback
Culaea inconstans
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © lefua · CC BY-NC 4.0
- 2. © Bonnie Kinder · CC BY-NC 4.0
- 3. © Matthew Kvam · CC BY-NC 4.0
- 4. © Emilio Concari · CC BY-NC 4.0
- 5. © lefua · CC BY-NC 4.0
- 6. © Michael Butler · CC BY-NC 4.0
- 7. © Kent Miller · CC BY-ND 4.0
- 8. © Rob Foster · CC BY 4.0
- 9. © Wayne Fidler · CC BY-NC 4.0
- 10. © Vince Golder · CC BY-NC 4.0
what is it?
The brook stickleback ( Culaea inconstans ) is a small freshwater fish that is distributed across the US and Canada. It grows to a length of about 2 inches. It occupies the northern part of the eastern United States, as well as the southern half of Canada. , though some of these areas are not native to the species. This small fish inhabits...
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.
- 3,694 observations worldwide on iNaturalist.
- Scientifically named by Jared Potter Kirtland in 1840 (186 years ago).
fact sheet
- English
- Brook Stickleback
- scientific name
- Culaea inconstans
- class
- Actinopterygii
- order
- Perciformes
- family
- Gasterosteidae
- IUCN Red List
- LC · least concern
- sightings in NL
- 0
- sightings in Europe
- 1
- sightings worldwide
- 3,694
- GBIF records in NL
- 0
- weight
- —
- length
- —
- lifespan
- —
- named
- 1840 by Jared Potter Kirtland
IUCN in Dutch: niet bedreigd. Blank means the sources don't say.
relatives· Gasterosteidae
Sources: iNaturalist taxon 58639, Wikidata Q1682380, GBIF 2356556, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.