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Acipenser schrenckii Brandt, 1869

Amur sturgeon
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Mongolia country information

Common names: Amur sturgeon
Occurrence: native
Salinity: freshwater
Abundance: occasional (usually not seen) | Ref: Dulmaa, A., 1999
Importance: subsistence fisheries | Ref: Dulmaa, A., 1999
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: A highly prized fish both for its eggs and flesh but not fished commercially (Ref. 41072). Rare in River Onon, which is the only river where it occurs in Mongolia (Ref. 41072). Also Ref. 57778
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mg.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Dulmaa, A., 1999
National Database:

Common names from other countries

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

Actinopteri (ray-finned fishes) > Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335).

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

Marine; freshwater; brackish; demersal; anadromous (Ref. 26364).   Temperate; 10°C - 20°C (Ref. 2059)

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

Asia: Endemic to the Amur River system. Two morphs, brown and gray, represent the species in the Amur River basin. Occurrence in the Sea of Japan (Ref. 11102) needs confirmation. International trade restricted (CITES II, since 1.4.98; CMS Appendix II).

Length at first maturity / Size / Weight / Age

Maturity: Lm 108.8, range 96 - 125 cm
Max length : 300 cm TL male/unsexed; (Ref. 40142); max. published weight: 190.0 kg (Ref. 40142); max. reported age: 65 years (Ref. 56448)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 38-53; Anal spines: 0; Anal soft rays: 20 - 32. Body shields in 5 rows; dorsal shields 11 to 15, lateral shields 32 to 47 and ventral 7 to 10.

Biology     Glossary (e.g. epibenthic)

Adults occur in stretches of rivers with sandy or stony bottom. Feed on benthic organisms. Highly prized fish (Ref. 41072).

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

The gray morph females in the Amur River reproduce at least every four years (Ref. 40142).

Main reference Upload your references | References | Coordinator | Collaborators

IUCN, 1990. 1990 IUCN red list of threatened animals. IUCN, Gland, Switzerland and Cambridge, U.K. 288 p. (Ref. 3881)

IUCN Red List Status (Ref. 123251)

  Critically Endangered (CR) (A2bd); Date assessed: 24 October 2009

CITES (Ref. 123416)


Threat to humans

  Harmless




Human uses

Fisheries: commercial
FAO(Fisheries: species profile; publication : search) | FishSource |

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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=0.00269 (0.00166 - 0.00436), b=3.24 (3.11 - 3.37), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.3   ±0.1 se; based on diet studies.
Resilience (Ref. 120179):  Very Low, minimum population doubling time more than 14 years (tm=8-14; Fec=29,000).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (87 of 100).
Price category (Ref. 80766):   Unknown.