Portrait of a river trout

Brown trout

Brown trout start life on a diet of invertebrates, but later on some of them switch to eating fish. These larger, predatory individuals are sometimes known as ferox trout, and were once thought to be a different species. Sea trout are also the same species as the brown trout, but sea trout are migratory, heading out to sea for most of their life and returning to rivers to spawn.

Scientific name: Salmo trutta

Rank: Species

Common names:

  • Ferox trout,
  • Sea trout

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The Brown trout can be found in a number of locations including: Asia, Europe, Indian subcontinent, Mediterranean, Russia, United Kingdom. Find out more about these places and what else lives there.


The following habitats are found across the Brown trout distribution range. Find out more about these environments, what it takes to live there and what else inhabits them.


Discover what these behaviours are and how different plants and animals use them.

Additional data source: Animal Diversity Web

Conservation Status

Least Concern

  1. EX - Extinct
  2. EW
  3. CR - Threatened
  4. EN - Threatened
  5. VU - Threatened
  6. NT
  7. LC - Least concern

Population trend: Unknown

Year assessed: 2008

Classified by: IUCN 3.1

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