Madagascar country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: never/rarely | Ref:
Regulations: no regulations | Ref:
Uses: no uses
Comments: Previous occurrence from map (Ref. 1394, p. 213) is confirmed by Ref. 1522. Reported as Dugong dugon dugon (Ref. 1522). C: Ref. 1522, M: Ref. 1394.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ma.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Rice, D.W., 1998
National Database:

Common names from other countries

Avolia, ... more

Classification / Names / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

> Sirenia (Dugongs and manatees) > Dugongidae (dugongs)

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

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

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Utplanteringar

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 / Vikt / Age

Maturity: L_m ? range ? - ? cm Max length : 406 cm TL hane/ej könsbestämd; (Ref. 91927); publicerad maxvikt: 400.0 kg (Ref. 1394); rapporterad maxålder: 20 år (Ref. 91927)

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).

Main reference referenser | Koordinator | Medarbetare

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

IUCN Red List Status (Ref. 130435)

Sårbar, se IUCNs rödlista (VU) (A2bcd+4bcd); Date assessed: 12 July 2015

CITES status (Ref. 108899)

Appendix I: International trade banned

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

Human uses

Fiskeri: saknar intresse
FAO - fiskeri: species profile | FishSource | Sea Around Us

Verktyg

E-book | Fälthandbok

Ytterligare information

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synonymer
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Age/Size
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referenser
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Estimates based on models

Preferred temperature (Ref. 115969): 24 - 29, mean 27.8 (based on 1686 cells).

Resiliens (Ref. 69278) Hög, lägsta populationsfördubblingstid mindre än 15 månader (K=1.26-1.62; tm=12.3; tmax=20).

Vulnerability (Ref. 71543): Very high vulnerability (90 of 100).

Price category (Ref. 80766): Unknown.

Dugong dugon (Müller, 1776)