The Olive Ridley Turtle

  Olive Ridley turtle (Lepidochelys olivacea)

Olive Ridley turtle carapace

  • 6 pairs or more of large scales on either side (costal scales)
  • Carapace circular
  • Colour grey green
  • Adult carapace  is heart-shaped approximately 0.7 metres

 

Distribution and habitats

The olive ridley turtle a Pacific and Indian ocean tropical and subtropical distribution, including northern Australia. Olive ridley turtles typically occur in shallow soft-bottomed habitats of protected waters. In Australia, they occur along the coast from southern Queensland and the Great Barrier Reef, northwards to Torres Strait, and across to the Joseph Bonaparte Gulf in Western Australia.

Breeding areas and nesting seasons

The major olive ridley turtle nesting sites include India, Mexico and Costa Rica. These marine turtles are noted for their mass nesting events called Arribadas.

No large rookeries of olive ridley turtles have been recorded in Australia. An estimate of the nesting population for Australia is 1000-5000 females annually, with most nesting in north west Arnhem Land. In Northern Australia nesting occurs all year round, although most nesting occurs during the dry season from April to June. Hatchlings emerge from the nests about two months after laying.

Diet

The olive ridley turtle is carnivorous, feeding mostly on shellfish and small crabs.

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