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Butter sole (Isopsetta isolepis) — Pleuronectidae

Butter sole

Isopsetta isolepis
LC · Least Concern

The Butter sole (Isopsetta isolepis) is a saltwater fish of the family Pleuronectidae that grows up to 55 cm.

Length
55 cm
Water
Saltwater
Depth
20.0–425.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Flat / disc-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Edibility
Commonly eaten

Description

The butter sole is a right-eyed flatfish of the family Pleuronectidae from the eastern Pacific, from Alaska to California. The species reaches about 55 cm; both eyes lie on the right side and the eyed side is brown with a smooth, 'buttery' skin. It is common in shallow water on soft, silty bottoms. In summer it moves into shallow water and in winter to deeper water, to about 425 m; spawning fish make north-south migrations. The diet consists of polychaete worms, young herring, shrimps and sand dollars. It is a tasty food fish sometimes marketed.

Frequently asked questions

How do you recognise the Butter sole?

The Butter sole has a flattened, disc-shaped body, is mainly brown and shows a marbled pattern.

Where does the Butter sole live?

The Butter sole lives in the sea (marine waters) and is mostly found around sand or mud bottom.

How big does the Butter sole get?

The Butter sole grows to a maximum of about 55 cm. On average the species is around 30 cm.

Is the Butter sole dangerous to humans?

No, the Butter sole is harmless to humans.

Is the Butter sole edible?

Yes, the Butter sole is commonly eaten.

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All data

Identification

Dutch name
Boterschol sourced
English name
Butter sole verified
Scientific name
Isopsetta isolepis
Family
Pleuronectidae
Other names
Butter sole verified

Appearance

Size class
Large verified
Max length (cm)
55.0 verified
Average length (cm)
30.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Brown inferred
Pattern
Marbled inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
20.0 verified
Max depth (m)
425.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
levensduur_max_jaar
11.0 verified

For anglers

Edibility
Commonly eaten sourced
Fishing method
Bodemvissen met natuurlijk aas (worm, garnaal of vis) op of vlak boven de bodem. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

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

More from the family Pleuronectidae

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