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Blue butterfish (Stromateus fiatola) — Stromateidae

Blue butterfish

Stromateus fiatola
Family: Stromateidae
LC · Least Concern

The Blue butterfish (Stromateus fiatola) is a saltwater fish of the family Stromateidae that grows up to 50 cm.

Length
50 cm
Water
Saltwater
Depth
10.0–70.0 m
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Mixed bottom
Danger
Harmless
Edibility
Commonly eaten

Description

The blue butterfish is a deep-bodied, laterally compressed schooling fish of the family Stromateidae reaching about 50 cm. The back is blue to brownish with dark spots and the belly silvery-white; juveniles have vertical bars and small black pelvic fins and often live among pelagic jellyfish, which give them shelter. The species occurs on the continental shelf of the eastern Atlantic and Mediterranean, between 10 and 70 m, forming large shoals. It feeds on small fish, zooplankton and medusae. The blue butterfish is a valued food fish across its range.

Frequently asked questions

How do you recognise the Blue butterfish?

The Blue butterfish has a flattened, disc-shaped body, is mainly blue and shows a spots pattern.

Where does the Blue butterfish live?

The Blue butterfish lives in the sea (marine waters) and is mostly found around mixed bottom.

How big does the Blue butterfish get?

The Blue butterfish grows to a maximum of about 50 cm. On average the species is around 40 cm.

Is the Blue butterfish dangerous to humans?

No, the Blue butterfish is harmless to humans.

Is the Blue butterfish edible?

Yes, the Blue butterfish is commonly eaten.

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All data

Identification

Dutch name
Blauwe botervis verified
English name
Blue butterfish verified
Scientific name
Stromateus fiatola
Family
Stromateidae
Other names
Blue butterfish; Butterfish verified

Appearance

Size class
Large verified
Max length (cm)
50.0 verified
Average length (cm)
40.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Blue sourced
Pattern
Spots sourced
Tail shape
Forked sourced
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Saltwater sourced
Substrate
Mixed bottom sourced
Min depth (m)
10.0 verified
Max depth (m)
70.0 verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Social behaviour
Schooling verified
Territorial
No verified
Activity
Diurnal sourced
Reproduction
Separate sexes verified
Sexual dimorphism
No verified

For anglers

Edibility
Commonly eaten verified
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

Same genus Stromateus

More from the family Stromateidae

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