Marine Mammals
Dugong
Dugong dugon · Marine mammal — family Dugongidae (order Sirenia)
The dugong is the sea cow the mermaid myth was pinned on, which says more about sailors' deprivation than the animal — what divers actually meet is a gray, whiskery vacuum of seagrass with a fluked tail and a permanently mild expression. Watching one work a meadow at Marsa Alam or Calauit is oddly absorbing: the muzzle plows, sand billows, halos of juvenile fish snap up the leavings, and every few minutes the whole gentle apparatus levers up for a breath. It is also a species living on thin margins, dependent on seagrass beds that anchors, coastal works, and warming keep erasing.
Où et quand en observer un
« Résident » signifie que la plupart des plongées sur ce site permettent de les observer ; « saisonnier » signifie qu'ils sont présents de manière fiable durant les mois indiqués ; tout le reste est un bonus, pas une certitude.
| Destination | Fiabilité | Mois | Notes |
|---|---|---|---|
| Marsa Alam & the Deep SouthEgypt | Resident — seen on most dives | Toute l'année | |
| CoronPhilippines | Resident — seen on most dives | Toute l'année | |
| Ningaloo ReefAustralia | Occasional | Toute l'année | |
| Espiritu SantoVanuatu | Occasional | Toute l'année |
Meilleur mois, en un coup d'œil
| Mois | Destinations fiables |
|---|---|
| January | Marsa Alam & the Deep South · Coron · Ningaloo Reef · Espiritu Santo |
| February | Marsa Alam & the Deep South · Coron · Ningaloo Reef · Espiritu Santo |
| March | Marsa Alam & the Deep South · Coron · Ningaloo Reef · Espiritu Santo |
| April | Marsa Alam & the Deep South · Coron · Ningaloo Reef · Espiritu Santo |
| May | Marsa Alam & the Deep South · Coron · Ningaloo Reef · Espiritu Santo |
| June | Marsa Alam & the Deep South · Coron · Ningaloo Reef · Espiritu Santo |
| July | Marsa Alam & the Deep South · Coron · Ningaloo Reef · Espiritu Santo |
| August | Marsa Alam & the Deep South · Coron · Ningaloo Reef · Espiritu Santo |
| September | Marsa Alam & the Deep South · Coron · Ningaloo Reef · Espiritu Santo |
| October | Marsa Alam & the Deep South · Coron · Ningaloo Reef · Espiritu Santo |
| November | Marsa Alam & the Deep South · Coron · Ningaloo Reef · Espiritu Santo |
| December | Marsa Alam & the Deep South · Coron · Ningaloo Reef · Espiritu Santo |
Les comprendre
Habitat: Shallow, sheltered seagrass meadows — the only strictly marine herbivorous mammal, wholly tied to seagrass
Aire de répartition: Patchy across the Indo-West Pacific from East Africa and the Red Sea through South and Southeast Asia to northern Australia, which holds most of the world's population
Comportement: A slow, snuffling grazer that plows the bottom with a bristled, downturned muzzle, surfacing every few minutes with a soft snort. Generally shy; a handful of habituated individuals at tourism sites tolerate calm snorkelers, feeding on unconcerned while watched.
Régime alimentaire: Seagrass, uprooted whole — feeding trails of bare sand snake across every meadow a dugong works
Taille: généralement autour de 2.7 m; documenté jusqu'à 3.0 m (body length; adults commonly 250–400 kg).
Comment se comporter avec lui
Approach from the side on snorkel, never from above or behind; no touching, no blocking its path to the surface, motor off near feeding animals, and cap group sizes per local rules. If it leaves a feeding trail, let it go.
Conservation
Vulnerable globally and worse regionally — functionally extinct in Chinese waters and declining across much of Asia; seagrass protection, netting bans, and boat rules are the levers that matter.
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