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Izmir nase (Chondrostoma holmwoodii) — Cyprinidae

Izmir nase

Chondrostoma holmwoodii
Family: Cyprinidae
VU · Vulnerable

The Izmir nase (Chondrostoma holmwoodii) is a freshwater fish of the family Cyprinidae that grows up to 28 cm.

Length
28.2 cm
Water
Freshwater
Diet
Herbivore
Behaviour
Large groups
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Mixed bottom
Danger
Harmless
Range
Western Asia; medium-sized to large streams and rivers of western Anatolia with current.
Edibility
Rarely eaten

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Description

The nase is a cyprinid (Leuciscidae) from West Asia. The species has an elongate, silvery body with an inferior mouth with a sharp, horny edge on the lower lip for scraping growth. It inhabits medium to large streams and rivers with a rocky or gravel bottom and moderate to fast current. Grazing the bottom, it feeds on algae, diatoms and plant growth. Owing to pollution and habitat loss the species is considered vulnerable. It is harmless to humans.

Frequently asked questions

How do you recognise the Izmir nase?

The Izmir nase has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern. Inferior mouth with a horny lower lip for scraping biofilm; vulnerable to pollution.

Where does the Izmir nase live?

The Izmir nase lives in fresh water and is mostly found around mixed bottom. Western Asia; medium-sized to large streams and rivers of western Anatolia with current.

How big does the Izmir nase get?

The Izmir nase grows to a maximum of about 28 cm.

Is the Izmir nase dangerous to humans?

No, the Izmir nase is harmless to humans. None required: this species is harmless to humans.

Is the Izmir nase edible?

The Izmir nase is rarely eaten.

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All data

Identification

English name
Izmir nase verified
Scientific name
Chondrostoma holmwoodii
Family
Cyprinidae

Appearance

Size class
Medium verified
Max length (cm)
28.2 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Forked inferred
Mouth position
Inferior (downward) inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Natural range
Western Asia; medium-sized to large streams and rivers of western Anatolia with current. inferred
Origin
Native sourced

Behaviour & biology

Diet
Herbivore sourced
Diet (detail)
Algae, diatoms and plant biofilm from the bottom sourced
Social behaviour
Large groups inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Inferior mouth with a horny lower lip for scraping biofilm; vulnerable to pollution. sourced

For anglers

Edibility
Rarely eaten sourced
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
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 Chondrostoma

More from the family Cyprinidae

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