Scuba Season

Green Sea Turtle

Chelonia mydas

Sighting evidence at Passe Houareau, Aldabra Atoll

Green Sea Turtle

Photo: Daniel Austin · © all rights reserved

Aldabra hosts one of the largest populations of green turtles in the Indian Ocean, with thousands nesting on the atoll's beaches each year. Green turtles are herbivores that graze seagrass meadows inside the lagoon and algae from reef surfaces, keeping seagrass beds cropped short and promoting the growth of nutrient-rich young shoots that support diverse invertebrate communities. Their role as ecosystem engineers in seagrass habitats is considered essential for the health of coastal food webs across the western Indian Ocean.

Evidence at this site

0 records within 25 km

Confidence: low

No date on file
How is this calculated?

Sighting evidence is compiled from iNaturalist observation records within a set proximity radius, filtered for quality-grade observations. “Last confirmed” is the date of the most recent research-grade record. Record count covers a rolling 24-month window. Confidence reflects record count, recency, and consistency of seasonal signal.

Also seen at other sites