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Chondrostoma oxyrhynchum Kessler, 1877

Terek nase
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Image of Chondrostoma oxyrhynchum (Terek nase)
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drawing shows typical species in Leuciscidae.


Azerbaijan country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality: Kuma R. at Georgijevsk, Russia (Ref. 26334). Occurs in the Kuma, Terek, Sulak, Rubas-chai and Samur rivers (Ref. 26334).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/aj.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Reshetnikov, Y.S., N.G. Bogutskaya, E.D. Vasil'eva, E.A. Dorofeeva, A.M. Naseka, O.A. Popova, K.A. Savvaitova, V.G. Sideleva and L.I. Sokolov, 1997
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Cypriniformes (Carps) > Leuciscidae (Minnows) > Leuciscinae
Etymology: Chondrostoma: Greek, chondros = cartilage + Greek, stoma = mouth (Ref. 45335). Name referring to the characteristic horny layer on the lower lip (Ref. 57917).

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic.   Temperate

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eurasia: West Caspian basin from Kuma to Samur drainages.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 12 - ? cm
Max length : 46.0 cm SL male/unsexed; (Ref. 59043)

Short description Identification keys | Morphology | Morphometrics

Diagnosed from congeners in Black and Caspian Sea basins by the following characters: strongly arched mouth; dorsal fin usually with 8½ branched rays; anal fin with 9-10½ branched rays; scales on lateral line 56-73; eye small, diameter 48-52% of interorbital distance; and body cylindrical, width at dorsal origin 51-69% of depth (Ref. 59043).

Biology     Glossary (e.g. epibenthic)

Inhabits piedmont and mountain rivers with strong current and rock to gravel bottom. Feeds predominantly on detritus and also on periphytic algae and benthic invertebrates, especially during first year of live. Spawns over hard bottom (Ref. 59043).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Females deposit eggs probably in several portions. Eggs adhere to gravel (Ref. 59043).

Main reference Upload your references | References | Coordinator | Collaborators

Elvira, B., 1997. Taxonomy of the genus Chondrostoma (Osteichthyes, Cyprinidae): an updated review. Folia Zool. 46 (Suppl. 1):1-14. (Ref. 27763)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 01 January 2008

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(genus, species) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00383 - 0.01808), b=3.10 (2.93 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.4   ±0.1 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (42 of 100).