Grayling
A cold-water salmonid fish native to European rivers, prized by anglers for its distinctive dorsal fin.
The European grayling is a freshwater fish belonging to the salmon family. It inhabits clean, cold rivers across much of Europe and is valued as a sport catch and food source.
- Grows up to 60 cm long and weighs 6.7 kg.
- Has 5-8 dorsal spines unlike Arctic grayling.
- Protected under the Bern Convention.
- Lives up to 14 years in cold rivers.
- Introduced unsuccessfully to Morocco in 1948.
What it is
This species belongs to the salmon family and is known scientifically as Thymallus thymallus. It is the only member of its genus found naturally in Europe. Adults reach up to 60 cm in length and weigh around 6.7 kg. The fish has a tall dorsal fin with five to eight spines, which helps distinguish it from similar Arctic relatives. Its body is adapted for life in fast-flowing, clear waters. Coloration varies but generally suits river environments.
Where it lives
Native populations stretch from France and the United Kingdom eastward to the Ural Mountains in Russia. They also appear in the Balkans but are absent from southern Europe. An introduction to Morocco in 1948 failed to establish a lasting population. In the Baltic Sea region, numbers have dropped sharply, leading to critical endangerment status there. They prefer cold, oxygen-rich streams.
How it lives
These fish live in cold, clean rivers and occasionally enter brackish zones near the Baltic. They eat a varied diet including insects, spiders, molluscs, zooplankton, and small fish like minnows. Larger predators such as the huchen hunt them. Research shows they occupy different microhabitats than trout, reducing competition. They are less cautious than trout when humans wade nearby.
Breeding and life cycle
The fish can live up to fourteen years. Young individuals grow within the same riverine systems as adults. No detailed egg or larval stages are described in the available text.
Fish and people
Anglers call this fish the lady of the stream. It is fished using fly techniques like Czech-nymphing and patterns resembling pink shrimps. In England and Wales, fishing is permitted from June to March. Scotland allows year-round angling where introduced. The fish is protected under the Bern Convention. It is also raised commercially for food and recreation.
Status and threats
The species faces threats in certain areas, particularly the Baltic Sea where it is critically endangered. Conservation measures include protection under Appendix III of the Bern Convention. Historical persecution by anglers who wrongly believed it harmed trout stocks has ceased. Modern management focuses on habitat preservation and regulated sport fishing seasons.
Questions people ask about Grayling
How can I tell a European grayling apart from an Arctic grayling?
The European grayling has five to eight spines in its dorsal fin and three to four in its anal fin. The Arctic grayling lacks these spines entirely. Additionally, the European species has fewer soft rays in those fins compared to its northern cousin.
Is the grayling safe to eat?
Yes, it is considered seafood and is raised commercially. It is also targeted by sport fishermen for food. The source describes it as economically important and raised for consumption without mentioning safety concerns.
Where is the best place to fish for grayling in Europe?
They are widespread from the UK to Russia. The Allier river in France is noted as a rare Southern European location with natural habitats. Scotland allows year-round fishing where introduced, while England and Wales have specific seasonal rules.
Good reading and sources
- Thymallus thymallus on WikipediaEncyclopedia
- More photos on Wikimedia CommonsPhotos
- Wikidata recordOpen data
The facts on this page come from the Wikipedia article "Thymallus thymallus", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryFish rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.
It may contain mistakes, and figures change over time. Nothing here is investment or buying advice. If something is wrong, tell us. Last refreshed 2026-11-15.
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