Common names: Occurence: questionable Salinity: marine Abundance: | Ref: Importance: | Ref: Aquaculture: never/rarely | Ref: Regulations: no regulations | Ref: Uses: no uses Comments: The distribution of this species in this archipelago does not have credible records to support it (Ref. 1522) but during the Percy Laden Expedition, dugongs were spotted in the Chagos Archipelago (Ref. 84351). C: Ref. 1522; O: Ref. 84351. National Checklist: Country Information:ttp://en.wikipedia.org/wiki/Chagos_Island National Fisheries Authority: Occurences:OccurencePoint map Main Ref:Rice, D.W., 1998 National Database:
Max length : 406 cm TL male/unsexed; (Ref. 91927); max. published weight: 400.0 kg (Ref. 1394); max. reported age: 20 years (Ref. 91927)
Environment: milieu / climate zone / depth range / distribution range
Benthopelagic; depth range 0 - 200 m (Ref. 81173), usually 1 - 40 m
Climate / Range
Tropical; 30°N - 37°S, 32°E - 178°W
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). Countries | FAO areas | Ecosystems | Occurrences | Introductions
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).