scubaseason

White-tip Reef Shark

Triaenodon obesus

Sighting evidence at Zamami Whale Watching Dive, Kerama Islands

White-tip Reef Shark

Photo: Craig Fujii · CC BY-NC-ND

White-tip reef sharks rest in loose aggregations on the sandy floor beneath reef overhangs during the day and become active hunters along the channel walls at dusk. They are strongly site-faithful and individual sharks can be recognised by fin notches, making them valuable subjects for long-term population studies run by local operators. Their presence is an indicator of reef health, as they occupy the apex predator niche in the Kerama benthic community.

Evidence at this site

No confirmed records on file at this site

White-tip Reef Shark is listed as a curated species here based on historical reports.

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