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Arctic char (Salvelinus alpinus) — Salmonidae

Arctic char

Salvelinus alpinus
Family: Salmonidae
LC · Least Concern
NativeIntroduced

The Arctic char (Salvelinus alpinus) is a fish that lives in both fresh and salt water of the family Salmonidae that grows up to 107 cm.

Length
107 cm
Water
Euryhaline
Depth
0.0–70.0 m
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Range
Widespread in the far north of the northern hemisphere; anadromous populations in the sea and the north, and isolated, relict populations in cold (mountain) lakes.
Edibility
Highly prized

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Description

The Arctic char is a salmonid of the family Salmonidae reaching about 1 metre. The streamlined body bears an adipose fin between the dorsal and tail fins and is dark with pale (pink to cream) spots; in the breeding season the belly and flanks of males turn bright orange-red, with white fin edges. It is the most northerly freshwater fish in the world: it lives in cold lakes and rivers of the far north, and in isolated, cold (mountain) lakes as an Ice Age relict, such as in the Alps. Northern populations are anadromous and migrate to sea. It hunts insects, crustaceans, plankton and small fish. The Arctic char is a valued sport and food fish.

Frequently asked questions

How do you recognise the Arctic char?

The Arctic char has a torpedo-shaped body, is mainly red-orange and shows a spots pattern. Salmonid of the far north with an adipose fin and pale spots on a dark back; at spawning time the belly and flanks turn bright orange-red.

Where does the Arctic char live?

The Arctic char lives in both fresh and salt water and is mostly found around mixed bottom. Widespread in the far north of the northern hemisphere; anadromous populations in the sea and the north, and isolated, relict populations in cold (mountain) lakes.

How big does the Arctic char get?

The Arctic char grows to a maximum of about 107 cm. On average the species is around 40 cm.

Is the Arctic char dangerous to humans?

No, the Arctic char is harmless to humans. None required: this species is harmless to humans.

Is the Arctic char edible?

Yes, the Arctic char is a highly prized food fish.

More photos

Arctic char (Salvelinus alpinus) — Salmonidae — 2
iNaturalist ((c) Braden J. Judson, some rights reserved (CC BY-NC))
Arctic char (Salvelinus alpinus) — Salmonidae — 3
iNaturalist ((c) and03, some rights reserved (CC BY-NC))

Easily confused with

These species look like the Arctic char and live in the same waters.

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All data

Identification

English name
Arctic char verified
Scientific name
Salvelinus alpinus
Family
Salmonidae
Other names
Alpine char; Arctic char; Arctic charr; Char; Charr; Breeder; Davatchan; Lake char; Redfish; Salt-water trout; Sea trout; Sea run trout verified

Appearance

Size class
Extra large verified
Max length (cm)
107.0 verified
Average length (cm)
40.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Red / orange sourced
Pattern
Spots sourced
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Euryhaline verified
Substrate
Mixed bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
70.0 verified
Natural range
Widespread in the far north of the northern hemisphere; anadromous populations in the sea and the north, and isolated, relict populations in cold (mountain) lakes. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Insects, crustaceans, zooplankton and small fishes sourced
Social behaviour
Schooling verified
Territorial
Yes verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
Yes verified
levensduur_max_jaar
40.0 verified
Seasonality
In the north anadromous fish migrate up the rivers to spawn; resident populations live in deep cold lakes. Spawns in autumn on gravel. sourced
Special features
Salmonid of the far north with an adipose fin and pale spots on a dark back; at spawning time the belly and flanks turn bright orange-red. sourced

For anglers

Edibility
Highly prized verified
Fishing method
Fly fishing and spinning with small lures in cold lakes and rivers; a popular, sporting salmonid sourced
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Salvelinus

More from the family Salmonidae

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