Dugong dugon   (Müller, 1776)


Native range | All suitable habitat | Point map | Year 2050
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Dugong dugon  AquaMaps  Data sources: GBIF OBIS
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Dugong dugon

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

Mammalia | Sirenia | Dugongidae

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

Benthopelagic; depth range 0 - 200 m (Ref. 81173), usually 1 - 40 m.  Tropical; 30°N - 37°S, 32°E - 178°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-Pacific: Dugong dugon hemprichii: Red Sea, Aqaba, Suez Canal; Dugong dugon dugon: Gulf of Aden, Mozambique, Persian Gulf, Pakistan, India, Myanmar, Malay Peninsula, Gulf of Thailand, Vietnam, Gulf of Tonkin, Comoros, Madagascar, Mauritius, Rodriguez, Sri Lanka, Andaman Islands, Indonesia, Ryukyu, Taiwan, Philippines, Guam, Palau, Micronesia, Caroline Is, Papua New Guinea, Solomon, New Caledonia, Australia, Fiji (Ref. 1522).

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 406 cm TL male/unsexed; (Ref. 91927); max. published weight: 400.0 kg (Ref. 1394); max. reported age: 20 years (Ref. 91927)

Biology     Glossary (e.g. epibenthic)

Maximum diving depth of 20.5 m recorded from Australia (Ref. 81173). Found in inshore waters, in bays and channels (Ref. 1394). Favors areas with warm shallow water, inshore and reefal seagrass beds (Ref. 936), particularly on fine sand (Ref. 86921). Occurs in small groups of up to 6 individuals; though, an exception of a herd of to 600 individuals was once recorded between Bahrain and Qatar (Ref. 801). Population estimates in the Persian/Arabian Gulf range from 5800 to 7300 individuals. Has a larger range than previously known, where their present range may be about 74% of the historical range (Ref. 114880). Feeds on a variety of seagrasses (Ref. 936). Almost entirely dependent on seagrass for food (Ref. 114880). Preyed upon by tiger sharks (Ref. 49538). Faces threats in the Persian/Arabian Gulf such as dredging, trawling and land reclamation, all damaging their critical seagrass habitats (Ref. 114880).

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

Main reference References | Coordinator | Collaborators

Tan, J.M.L. 1995. (Ref. 936)

IUCN Red List Status (Ref. 130435)

  Vulnerable (VU) (A2bcd+4bcd); Date assessed: 12 July 2015

CITES status (Ref. 108899)

CMS (Ref. 116361)

Threat to humans

Human uses

Fisheries: of no interest
FAO - Fisheries: species profile | FishSource | Sea Around Us


More information

Common names
Egg development
Mass conversion

Internet sources

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

Estimates based on models

Preferred temperature (Ref. 115969): 24 - 29, mean 27.8 (based on 1686 cells).
Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (K=1.26-1.62; tm=12.3; tmax=20).
Vulnerability (Ref. 71543): Very high vulnerability (90 of 100).
Price category (Ref. 80766): Unknown.