Animalia > Chordata > Acipenseriformes > Acipenseridae > Huso > Huso dauricus

Huso dauricus (Siberian huso sturgeon; Manchurian sturgeon; Kaluga; Huso sturgeon; Great Siberian sturgeon)

Synonyms: Acipenser dauricus; Acipenser mantschuricus; Acipenser orientalis; Huso orientalis
Language: Czech; Danish; Finnish; German; Japanese; Mandarin Chinese; Polish; Russian

Wikipedia Abstract

The kaluga (Huso dauricus) is a large predatory sturgeon found in the Amur River basin. Also known as the river beluga, they are claimed to be the largest freshwater fish in the world, with a maximum size of at least 1,000 kg (2,205 lb) and 5.6 m (18.6 ft). Local fishermen have suggested that the kaluga can grow well up to 20 ft in length and can weigh around 1,500 kg. The kaluga is one of the biggest of the sturgeon family. Like the slightly larger beluga, it spends part of its life in salt water. Unlike the beluga, this fish has 5 major rows of dermal scutes, nail-like teeth in its jaws, and feeds on salmon and other fish in the Amur. They have gray-green to black backs with a yellowish green-white underbelly.
View Wikipedia Record: Huso dauricus

Endangered Species

Status: Critically Endangered
View IUCN Record: Huso dauricus


Adult Weight [1]  1,212.549 lbs (550.00 kg)
Female Maturity [2]  16 years 9 months
Male Maturity [1]  17 years 6 months
Litter Size [3]  1,000,000
Maximum Longevity [2]  55 years
Migration [4]  Anadromous

Prey / Diet

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Lamna ditropis (Salmon shark)1


Range Map

External References


Attributes / relations provided by
1de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
2Frimpong, E.A., and P. L. Angermeier. 2009. FishTraits: a database of ecological and life-history traits of freshwater fishes of the United States. Fisheries 34:487-495.
3Endemic sturgeons of the Amur River: kaluga, Huso dauricus, and Amur sturgeon, Acipenser schrenckii, Mikhail L. Krykhtin & Victor G. Svirskii, Environmental Biology of Fishes 48: 231–239, 1997
4Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
5Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
6Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset accessed via on 2023-06-13; License: CC BY 4.0