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Neretvan nase (Chondrostoma knerii) — Cyprinidae

Neretvan nase

Chondrostoma knerii
Family: Cyprinidae
VU · Vulnerable

The Neretvan nase (Chondrostoma knerii) is a freshwater fish of the family Cyprinidae that grows up to 29 cm.

Length
29.4 cm
Water
Freshwater
Diet
Herbivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Range
Endemic to the Neretva river basin of the Dinaric karst in Croatia and Bosnia and Herzegovina, in clear, flowing water and karst swamps with a gravel and stone bottom.
Edibility
Rarely eaten

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Description

The Neretvan nase is a slender cyprinid of the family Cyprinidae (Leuciscidae) reaching about 30 cm. The silvery-grey body has an inferior mouth with a straight, horny cutting edge on the lower lip, with which the fish scrapes algae and growth off stones. The species is endemic to the Neretva drainage of the Dinaric karst in Croatia and Bosnia and Herzegovina, in clear, flowing water and karst wetlands with gravel and stone bottoms. In schools it grazes the algal growth (aufwuchs) off the stones. In spring it migrates upstream to spawn on gravel. Through water pollution, water abstraction, dams and introduced exotics it has declined and is assessed as Vulnerable (VU).

Frequently asked questions

How do you recognise the Neretvan nase?

The Neretvan nase has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern. Slender cyprinid with an inferior mouth with a straight, horny cutting edge with which it scrapes algae from stones; a Dinaric endemic.

Where does the Neretvan nase live?

The Neretvan nase lives in fresh water and is mostly found around sand or mud bottom. Endemic to the Neretva river basin of the Dinaric karst in Croatia and Bosnia and Herzegovina, in clear, flowing water and karst swamps with a gravel and stone bottom.

How big does the Neretvan nase get?

The Neretvan nase grows to a maximum of about 29 cm.

Is the Neretvan nase dangerous to humans?

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

Is the Neretvan nase edible?

The Neretvan nase is rarely eaten.

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All data

Identification

English name
Neretvan nase verified
Scientific name
Chondrostoma knerii
Family
Cyprinidae
Other names
Neretvan nase; Dalmation Nase verified

Appearance

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

Habitat & distribution

Water type
Freshwater verified
Substrate
Sand / mud bottom verified
Natural range
Endemic to the Neretva river basin of the Dinaric karst in Croatia and Bosnia and Herzegovina, in clear, flowing water and karst swamps with a gravel and stone bottom. verified
Origin
Native verified

Behaviour & biology

Diet
Herbivore verified
Diet (detail)
Algae and biofilm (aufwuchs) that are scraped from stones sourced
Social behaviour
Schooling verified
Territorial
No verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
levensduur_max_jaar
7.5 verified
Seasonality
Migrates upstream in shoals in spring to spawn on gravel. sourced
Special features
Slender cyprinid with an inferior mouth with a straight, horny cutting edge with which it scrapes algae from stones; a Dinaric endemic. sourced

For anglers

Edibility
Rarely eaten verified
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 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 Chondrostoma

More from the family Cyprinidae

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