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Grass carp (Ctenopharyngodon idella) — Cyprinidae

Grass carp

Ctenopharyngodon idella
Family: Cyprinidae

The Grass carp (Ctenopharyngodon idella) is a brackish-water fish of the family Cyprinidae that grows up to 150 cm.

Length
150 cm
Water
Brackish
Depth
0.0–30.0 m
Diet
Herbivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Edibility
Commonly eaten

Description

The grass carp is a large, plant-eating cyprinid of the family Cyprinidae that can reach about 150 cm and tens of kilograms. The elongate, fairly rounded body is grey-green with a silvery sheen and large scales with dark edges; the mouth is terminal and the fish lacks barbels. The species is native to the large rivers of East Asia but has been stocked worldwide because it eats large amounts of aquatic plants and can keep overgrown waters open. In many areas, including the Netherlands, it does not reproduce on its own and must be restocked. It grows fast and, by overgrazing water plants, can change ecosystems profoundly.

Frequently asked questions

How do you recognise the Grass carp?

The Grass carp has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern.

Where does the Grass carp live?

The Grass carp lives in brackish water and is mostly found around mixed bottom.

How big does the Grass carp get?

The Grass carp grows to a maximum of about 150 cm. On average the species is around 11 cm.

Is the Grass carp dangerous to humans?

No, the Grass carp is harmless to humans.

Is the Grass carp edible?

Yes, the Grass carp is commonly eaten.

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All data

Identification

Dutch name
Graskarper verified
English name
Grass carp verified
Scientific name
Ctenopharyngodon idella
Family
Cyprinidae
Other names
Glass carp; Grass carp verified

Appearance

Size class
Extra large verified
Max length (cm)
150.0 verified
Average length (cm)
10.7 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey sourced
Pattern
Plain sourced
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Brackish sourced
Substrate
Mixed bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
30.0 verified
Origin
Non-native (invasive) verified

Behaviour & biology

Diet
Herbivore verified
Social behaviour
Small groups verified
Territorial
No verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
levensduur_max_jaar
21.0 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 verified

Status & sources

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

More from the family Cyprinidae

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