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Arctic flounder (Liopsetta glacialis) — Pleuronectidae

Arctic flounder

Liopsetta glacialis
LC · Least Concern

The Arctic flounder (Liopsetta glacialis) is a saltwater fish of the family Pleuronectidae that grows up to 44 cm.

Length
44 cm
Water
Saltwater
Depth
0.0–90.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Flatfish
Substrate
Sand / mud bottom
Danger
Harmless
Range
Arctic coastal waters of the Arctic Ocean and adjacent northern seas around Siberia and North America, on sandy and silty bottoms; tolerates brackish water and enters estuaries and river mouths.
Edibility
Commonly eaten

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Description

The Arctic flounder is a right-eyed flatfish of the family Pleuronectidae reaching about 44 cm. Both eyes lie on the right side, which is smooth and dark brown; the underside is white. The species is adapted to cold polar water and lives on sand and mud bottoms of the Arctic coastal waters of the Arctic Ocean and adjacent northern seas around Siberia and North America. It tolerates brackish water and enters estuaries and river mouths. On the bottom it hunts worms, small crustaceans and molluscs. It spawns in winter, often under the ice. Like all flatfish the young start symmetrical and, after metamorphosis, sink onto their side to the bottom. Locally it is a valued food fish for northern peoples.

Frequently asked questions

How do you recognise the Arctic flounder?

The Arctic flounder has a flatfish-shaped body, is mainly brown and shows a plain pattern. Right-eyed flatfish of cold polar seas with a smooth, dark brown eyed side; tolerates brackish water and enters river mouths.

Where does the Arctic flounder live?

The Arctic flounder lives in the sea (marine waters) and is mostly found around sand or mud bottom. Arctic coastal waters of the Arctic Ocean and adjacent northern seas around Siberia and North America, on sandy and silty bottoms; tolerates brackish water and enters estuaries and river mouths.

How big does the Arctic flounder get?

The Arctic flounder grows to a maximum of about 44 cm. On average the species is around 25 cm.

Is the Arctic flounder dangerous to humans?

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

Is the Arctic flounder edible?

Yes, the Arctic flounder is commonly eaten.

More photos

Arctic flounder (Liopsetta glacialis) — Pleuronectidae — 2
GBIF (Cameron Eckert)
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All data

Identification

English name
Arctic flounder verified
Scientific name
Liopsetta glacialis
Family
Pleuronectidae
Other names
Arctic flounder; Christmas flounder; Eelback flounder; Polar plaice verified

Appearance

Size class
Large verified
Max length (cm)
44.0 verified
Average length (cm)
25.0 verified
Body shape
Flatfish verified
Dominant colour
Brown sourced
Pattern
Plain sourced
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Saltwater verified
Substrate
Sand / mud bottom verified
Min depth (m)
0.0 verified
Max depth (m)
90.0 verified
Natural range
Arctic coastal waters of the Arctic Ocean and adjacent northern seas around Siberia and North America, on sandy and silty bottoms; tolerates brackish water and enters estuaries and river mouths. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Worms, small crustaceans and molluscs from the bottom sourced
Social behaviour
Solitary verified
Territorial
No verified
Activity
Nocturnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
levensduur_max_jaar
26.0 verified
Seasonality
Cold-water bottom-dweller; spawns in winter under the ice. The juvenile fish is still symmetrical and sinks to the bottom after metamorphosis. sourced
Special features
Right-eyed flatfish of cold polar seas with a smooth, dark brown eyed side; tolerates brackish water and enters river mouths. sourced

For anglers

Edibility
Commonly eaten verified
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
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 Liopsetta

More from the family Pleuronectidae

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