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#2106 · 🐟 fish

European Weatherfish

🇳🇱 Grote modderkruiper ·Misgurnus fossilis

LCleast concern 🐟 Fish 📍 in the Netherlands
European Weatherfish, photo 1 of 10
1/10 © Bernt René Voss Grimm · CC BY 4.0

what is it?

Misgurnus fossilis is a species of loach in the genus Misgurnus . It is commonly known as European weatherfish or European weather loach , due to its activity patterns changing when air pressure rises or falls. If there is a sudden change in barometric pressure, the weatherfish comes to the surface and swims about excitedly. In water with a low oxygen content it gulps air; it extracts oxygen through its intestinal mucous membrane, which has a complex system...

base stats

  • NL sightings 36iNaturalist, research grade
  • worldwide 192iNaturalist observations
  • threat LCleast concern

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 36 times in the Netherlands on iNaturalist: the #35 most seen of the fish in NL.
  • 192 observations worldwide on iNaturalist.
  • Scientifically named in 1758 (268 years ago).

fact sheet

English
European Weatherfish
Nederlands
Grote modderkruiper
scientific name
Misgurnus fossilis
class
Actinopterygii
order
Cypriniformes
family
Cobitidae
IUCN Red List
LC · least concern
sightings in NL
36
sightings in Europe
167
sightings worldwide
192
GBIF records in NL
3,431
weight
—
length
—
lifespan
—
named
1758

IUCN in Dutch: niet bedreigd. Blank means the sources don't say.

relatives· Cobitidae

Sources: iNaturalist taxon 105910, Wikidata Q747794, GBIF 2367936, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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