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Ptychobarbus kaznakovi Nikolskii, 1903

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China country information

Common names: Bilobed-lip schizothoracin, 裸腹叶须鱼(裸腹重唇鱼), 裸腹葉鬚魚(裸腹重唇魚)
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the Nujiang [=Salween], Changjiang [=Yangtze] and Lanchang [=Mekong] rivers and from Qinghai Lake (Ref. 41093). Also found in rivers in Tibet (Ref. 32617). Type locality: Dza tju [Dza-tschju], Kam Territory, Tibet. Status of threat: Vulnerable (Ref. 45563). Also Ref. 26563, 45563.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ch.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Yunfei, W., 1987
National Database:

Common names from other countries

Osman Kaznakovův, 裸腹重唇鱼, 裸腹叶须鱼(裸腹重唇鱼), ... more

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

Teleostei (teleosts) > Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Schizopygopsinae
Etymology: Ptychobarbus: Greek, ptyx, ptychos = fold + Latin, barbus = barbel (Ref. 45335).

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

Freshwater; benthopelagic.   High altitude

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

Asia: Tibet.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 57.5 cm TL male/unsexed; (Ref. 111520); max. published weight: 1.5 kg (Ref. 111520)

Short description Morphology | Morphometrics

Body grayish-brown on back of body and with irregular tiny spots, top of head and dorsal, pectoral and caudal fins with many spots. Barbels 1 pair; snout projected.

Biology     Glossary (e.g. epibenthic)

Lives in main streams and tributaries of large rivers (Ref. 45563).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Chen, Y. and W. Cao, 2000. Cyprinidae: Schizothoracinae. p. 273-390. In P. Yue, et al. (Eds).Fauna Sinica. Osteichthyes. Cypriniformes III. Science Press. Beijing. 1-661. (Ref. 45622)

IUCN Red List Status (Ref. 130435)

  Not Evaluated 

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

More information

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Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

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 | 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 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00364 - 0.00831), b=3.08 (2.96 - 3.20), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  2.9   ±0.2 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (43 of 100).