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Brassy trevally (Ulua aurochs) — Carangidae

Brassy trevally

Ulua aurochs
Family: Carangidae

The Brassy trevally (Ulua aurochs) is a fish of the family Carangidae that grows up to 70 cm.

Length
70 cm
Behaviour
Schooling
Substrate
Open water
Danger
Harmless

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Description

The brassy trevally is a jack (Carangidae) from coastal and reef water of the Indo-West Pacific. The species grows to about 70 cm and has a deep, laterally compressed, silvery body with a yellow-bronze sheen and highly protrusible jaws for sucking up prey. As a fast, pelagic predator it often hunts in schools for small fish, shrimp and crustaceans. It is a valued sport and food fish. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Brassy trevally?

The Brassy trevally is mainly silver-grey.

Where does the Brassy trevally live?

The Brassy trevally is mostly found around open water.

How big does the Brassy trevally get?

The Brassy trevally grows to a maximum of about 70 cm.

Is the Brassy trevally dangerous to humans?

No, the Brassy trevally is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

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All data

Identification

English name
Brassy trevally sourced
Scientific name
Ulua aurochs
Family
Carangidae
Other names
Silvermouth trevally; Black-crested trevally; Mirror-mouthed trevally; Trevally

Appearance

Size class
Large
Max length (cm)
70 inferred
Dominant colour
Silver / grey sourced
Tail shape
Forked inferred

Habitat & distribution

Substrate
Open water sourced
Origin
Native inferred

Behaviour & biology

Social behaviour
Schooling sourced
Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred

For anglers

Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

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

Same genus Ulua

More from the family Carangidae

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