Common nase

The common nase (Chondrostoma nasus) is a European potamodromous cyprinid fish. It is often simply called the nase, but that can refer to any species of its genus Chondrostoma. Another name is sneep.

Common nase

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Leuciscinae
Genus: Chondrostoma
Species:
C. nasus
Binomial name
Chondrostoma nasus
Synonyms
  • Cyprinus nasus Linnaeus, 1758
  • Chondrostoma ohridanum Karaman, 1924

Distribution

The nase is found naturally in drainages of the Black Sea (Danube, Dniestr, Southern Bug, Dniepr), the southern Baltic Sea (Nieman, Odra, Vistula) and the southern North Sea (to Meuse in the west). Moreover, it has been introduced to the Rhône, Loire, Hérault, and Soca/Isonzo (Italy, Slovenia) drainages. It is a migratory fish.

Appearance

The nase has a spindle shaped physique, with a blue-grey metallic-coloured scales and orange tail. It has relatively sharp lower lip. Generally, the fish range from 25 to 40 centimetres in length, and weigh about 1000 grams. However, specimens have been recorded up to 60 long and 3 kg in weight. The maximum recorded life span of the fish is 15 years.

Biology

This gregarious species is found in deep water with a fast current, often in the back waters of bridges or in rocky outcrops. It dwells near the bottom where it feeds on algae, aquatic plants and invertebrates. Nase fish on the whole stay in shoals.

Protection

The nase is protected by the Convention on the Conservation of European Wildlife and Natural Habitats.

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References
  1. Freyhof, J. (2011). "Chondrostoma nasus (errata version published in 2016)". The IUCN Red List of Threatened Species. 2011: e.T4789A97800985. doi:10.2305/IUCN.UK.2011-1.RLTS.T4789A11094713.en.
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