A rare albino green turtle hatchling has been seen making its way into the ocean off Lady Elliot Island in Queensland's southern Great Barrier Reef.

The Island's Ecosystem Management Officer Jim Buck says one in every 100,000 turtle hatchlings is albino and the lack of colour is caused by a melanin deficiency.

The hatchling has limited sight and is more visible to predators, meaning it has slimmer chances of surviving to adulthood than its siblings.