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Delphinapterus leucas   (Pallas, 1776)

beluga
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Image of Delphinapterus leucas (beluga)
Delphinapterus leucas
Picture by FAO

Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Mammalia | Cetacea | Monodontidae

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

Pelagic; brackish; depth range 0 - 350 m (Ref. 117401).  Polar; 90°N - 0°S, 180°W - 180°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Northern Atlantic, Northern Pacific, the Arctic and Inland Waters. [IUCN 2010 (Ref. 84930): CR, C2a(ii).]

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 550 cm TL male/unsexed; (Ref. 1394); 410 cm TL (female); common length : 430 cm TL male/unsexed; (Ref. 118436); common length :380 cm TL (female); max. published weight: 1.6 t (Ref. 1394)

Biology     Glossary (e.g. epibenthic)

Death of this species can result from predation by polar bears and killer whales, ice entrapments and diseases. There are at least seven (7) stocks of belugas in the North American Arctic based on mitochondrial and nuclear DNA markers (Ref. 118436). Found in shallow coastal waters, and occasionally moves into deep, offshore waters. In the summer, they aggregate in large numbers in shallow estuaries. They primarily feed on various species of fish, combined with a wide variety of mollusks and benthic invertebrates which are found on or near the bottom (Ref. 1394). Weight of offspring ranges from 50 to 80 kg (Ref. 118436).

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

Main reference References | Coordinator | Collaborators

Jefferson, T.A., S. Leatherwood and M.A. Webber. 1993. (Ref. 1394)

IUCN Red List Status (Ref. 115185)

CITES status (Ref. 108899)

CMS (Ref. 116361)

Threat to humans

Human uses

Fisheries: commercial
FAO(fisheries: production) | FishSource | Sea Around Us

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(fisheries: species profile; publication : search) | GenBank (genome, nucleotide) | GloBI | | Google Books | Google Scholar | Google | ispecies | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): -1.8 - 2.3, mean -0.7 (based on 12736 cells).
Vulnerability (Ref. 71543)
Very high vulnerability (90 of 100)
Price category (Ref. 80766)
Unknown