Whale Shark
Rhincodon typus
Sighting evidence at Nosy Mitsio, Nosy Be
Photo: Simon Pierce · CC BY-NC
Whale sharks aggregate in the passages between the Mitsio islands September through December, feeding on coral spawn slicks and concentrations of zooplankton amplified by upwelling currents. The offshore nature of the archipelago means encounters occur in deeper, clearer water than at inshore sites — often in the top 10 metres with visibility exceeding 25 metres. Photo-identification data collected by visiting liveaboards has contributed to the global Wildbook for Whale Sharks citizen science database.
Evidence at this site
No confirmed records on file at this site
Whale Shark is listed as a curated species here based on historical reports.