Huso dauricus (Georgi, 1775)

Kaluga

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Acipenseriformes \| Acipenseridae \| Acipenserinae
Synonyms	Acipenser dauricus, Acipenser mantschuricus, Acipenser orientalis, ... more
Common names	Huso sturgeon, Kaluga-Hausen, Vyza sibiřská, ... more

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Main reference

Berg, L.S. 1962. (Ref. 593)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 560 cm TL male/unsexed; (Ref. 40142); max. published weight: 1,000.0 kg (Ref. 40142); max. reported age: 80 years (Ref. 56448)

Environment

Demersal; anadromous (Ref. 51243); freshwater; brackish; marine; depth range 0 - 50 m (Ref. 50550)

Climate / Range

Temperate; 10°C - 20°C (Ref. 2059); 55°N - 43°N

Asia: Amur basin, ascending far up to the Argun, Shilka, and Onon. In the Amur Liman to the Amur estuary in the Sea of Okhotsk. Adults inhabit some lakes, like Orel Lake above Nikolaevsk. Also in the Ussuri and Sungari, China. International trade restricted (CITES II, since 1.4.98; CMS Appendix II). Four populations are recognized in the Amur River basin: one lives in the estuary and coastal brackish waters of the Sea of Okhotsk and Sea of Japan, second is found in the lower Amur, third in the middle Amur, and fourth in the lower reaches of the Zeya and Bureya rivers in the Russian river banks (Ref. 40142). Two ecological morphs are present in the estuary population, the 'freshwater' and the 'brackish' water forms (Ref. 40142).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 43 - 57; Anal spines: 0; Anal soft rays: 26 - 35. Gill membranes free from isthmus and broadly connected with each other. Barbels flat, attached on ventral side of snout. Body shields in 5 rows; dorsal shields 10 to 16, lateral 32 to 46 and ventral 8 to 12.

Adults inhabit rivers and lakes. Adults do not spawn every year but at least every other year. With increasing age, the spawning interval increases to three, four and more years (Ref. 593). Feed on invertebrates in the first year then switch to juveniles of pelagic fishes, e.g., Oncorhynchus keta, at age 3 to 4 yrs., kaluga feed on adult fishes (Ref. 40142).


IUCN Red List Status (Ref. 57073)	Threat to humans
Endangered (EN) (A1acde+2d)	Harmless

Human uses
Fisheries: commercial


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Very Low, minimum population doubling time more than 14 years (tm=14-23; tmax=55; Fec=600,000)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Very high vulnerability (88 of 100)	Not marketed/unknown

Entered by Luna, Susan M.

Modified by Luna, Susan M.

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Page last modified by : elaxamana, 15 July 2009

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