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#2155 · 🐟 fish

Brown Trout

🇳🇱 Atlantische forel ·Salmo trutta

LCleast concern 🐟 Fish 📍 in the Netherlands
Brown Trout, photo 1 of 10
1/10 © kirk gardner · CC BY 4.0

what is it?

The brown trout ( Salmo trutta ) is a European species of salmonid fish that has been widely introduced into suitable environments globally. It includes both purely freshwater populations, referred to as the riverine ecotype or Salmo trutta morpha fario and a lacustrine ecotype, S. trutta morpha lacustris , also called the lake trout , as well as anadromous forms known as the sea trout, S. trutta morpha trutta . The latter migrates to the oceans for much of its life...

base stats

  • NL sightings 4iNaturalist, research grade
  • worldwide 18,424iNaturalist 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 4 times in the Netherlands on iNaturalist.
  • 18,424 observations worldwide on iNaturalist.
  • Scientifically named in 1758 (268 years ago).

fact sheet

English
Brown Trout
Nederlands
Atlantische forel
scientific name
Salmo trutta
class
Actinopterygii
order
Salmoniformes
family
Salmonidae
IUCN Red List
LC · least concern
in NL
native
sightings in NL
4
sightings in Europe
6,543
sightings worldwide
18,424
GBIF records in NL
8,556
weight
—
length
—
lifespan
—
named
1758

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

relatives· Salmonidae

Sources: iNaturalist taxon 47518, Wikidata Q2857311, GBIF 8215487, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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