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Piscivorous chub (Opsariichthys uncirostris) — Cyprinidae

Piscivorous chub

Opsariichthys uncirostris
Family: Cyprinidae
LC · Least Concern
NativeIntroduced

The Piscivorous chub (Opsariichthys uncirostris) is a freshwater fish of the family Cyprinidae that grows up to 44 cm.

Length
44.4 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Stone or rock
Danger
Harmless
Range
East Asia (Japan, Korea and China), in clear rivers and lakes with flowing water.
Edibility
Commonly eaten

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Description

The piscivorous chub is a slender, predatory cyprinid of the family Xenocyprididae reaching about 44 cm. Unlike most cyprinids it has a large mouth with wavy jaw edges that interlock, with which it holds prey. Outside the breeding season it is silvery with faint vertical bars, but breeding males colour up vividly with blue-green and red-orange tints and develop tubercles. The species comes from East Asia and lives in schools in clear rivers and lakes with flowing water. It hunts small fish, insects and crustaceans. It is a valued small sport and food fish and an unusual fish-eater among the cyprinids.

Frequently asked questions

How do you recognise the Piscivorous chub?

The Piscivorous chub has an elongate, eel-like body, is mainly silver-grey and shows a vertical stripes pattern. Slender, predatory cyprinid with a large mouth whose jaws hook into each other; in the spawning season the male colours up brightly with breeding tubercles.

Where does the Piscivorous chub live?

The Piscivorous chub lives in fresh water and is mostly found around stony or rocky ground. East Asia (Japan, Korea and China), in clear rivers and lakes with flowing water.

How big does the Piscivorous chub get?

The Piscivorous chub grows to a maximum of about 44 cm. On average the species is around 12 cm.

Is the Piscivorous chub dangerous to humans?

No, the Piscivorous chub is harmless to humans. None required: this species is harmless to humans.

Is the Piscivorous chub edible?

Yes, the Piscivorous chub is commonly eaten.

More photos

Piscivorous chub (Opsariichthys uncirostris) — Cyprinidae — 2
iNaturalist ((c) hakkahamushi, some rights reserved (CC BY-NC))
Piscivorous chub (Opsariichthys uncirostris) — Cyprinidae — 3
iNaturalist ((c) bananyasan_0728, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Piscivorous chub verified
Scientific name
Opsariichthys uncirostris
Family
Cyprinidae
Other names
Threelips; Three-lips; Triplelip; Amur three-lips verified

Appearance

Size class
Large verified
Max length (cm)
44.4 verified
Average length (cm)
12.4 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey sourced
Pattern
Vertical bars sourced
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Freshwater verified
Substrate
Stone or rock verified
Natural range
East Asia (Japan, Korea and China), in clear rivers and lakes with flowing water. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Small fishes, insects and crustaceans sourced
Social behaviour
Schooling verified
Territorial
No verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
Yes verified
Seasonality
Spawns in spring and summer on gravel banks; the male develops bright spawning colours and tubercles. sourced
Special features
Slender, predatory cyprinid with a large mouth whose jaws hook into each other; in the spawning season the male colours up brightly with breeding tubercles. sourced

For anglers

Edibility
Commonly eaten verified
Fishing method
Casting with small lures or flies in rivers; a sporty, fiercely striking small predatory fish sourced
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 Opsariichthys

More from the family Cyprinidae

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