Turtles
Leatherback Turtle
Dermochelys coriacea · Marine reptile — family Dermochelyidae
The leatherback barely seems like a turtle at all. There is no hard shell — just a ridged carapace of black, leathery skin flecked with white, streamlined like a seed pod, hung with the longest front flippers in the family. It is a deep-ocean animal on a jellyfish economy, warm-blooded enough in practice to cruise off Nova Scotia and Norway, and it crosses entire oceans between nesting beaches and feeding grounds. Divers almost never meet one by design; the realistic encounter is a nesting female — an armored rowboat heaving up a tropical beach by night — or a heart-stopping pass in open water during a baitball season. List it among the ocean's privileges, not its itineraries.
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 |
|---|---|---|---|
| GrenadaGrenada | Rare | Apr–Jul | |
| Sodwana BaySouth Africa | Rare | Nov–Jan | |
| The Sardine Run (Wild Coast)South Africa | Rare | Jun–Jul | |
| DominicaDominica | Rare | Mar–Jul |
Meilleur mois, en un coup d'œil
| Mois | Destinations fiables |
|---|---|
| January | Sodwana Bay |
| March | Dominica |
| April | Grenada · Dominica |
| May | Grenada · Dominica |
| June | Grenada · The Sardine Run (Wild Coast) · Dominica |
| July | Grenada · The Sardine Run (Wild Coast) · Dominica |
| November | Sodwana Bay |
| December | Sodwana Bay |
Les comprendre
Habitat: The open ocean — a pelagic wanderer that dives past 1,000 m for jellyfish and comes ashore only to nest
Aire de répartition: The widest range of any reptile, from tropical nesting beaches to sub-polar feeding grounds in both hemispheres
Comportement: A warm-bodied ocean nomad — gigantothermy and specialized circulation let it hunt jellyfish in cold, deep water no other turtle tolerates. It almost never lingers where divers are; encounters are brief, awe-struck crossings in blue water or the regulated privilege of watching a female nest at night.
Régime alimentaire: Jellyfish and other gelatinous animals almost exclusively, swallowed past backward-pointing throat spines
Taille: généralement autour de 1.5 m; documenté jusqu'à 1.8 m (carapace length; the largest turtle alive, commonly 300–500 kg, with exceptional individuals larger still).
Comment se comporter avec lui
In-water: keep distance and never touch or impede — it will not stop for you anyway. On nesting beaches: permitted guided tours only, red or no lights, no flash, stay behind the guide, and never handle eggs or hatchlings.
Conservation
Vulnerable globally with Pacific subpopulations in severe decline; egg harvest, longline bycatch, and plastic bags mistaken for jellyfish are the persistent killers. Beach protection in the Atlantic has produced real recoveries.
Regarder
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