Scuba Season

Whitetip Reef Shark

Triaenodon obesus

Sighting evidence at Coral Garden, Nosy Be

Whitetip Reef Shark

Photo: Andrianiaina Angelo · CC BY-NC

The sandy channels between Coral Garden's bommies serve as daytime resting spots for resident whitetip reef sharks, which lie motionless in groups of 3 to 8 individuals. Unlike many sharks they can remain stationary and pump water over their gills without swimming — an adaptation that suits their crevice-hunting nocturnal lifestyle. At night they become formidable pack hunters, coordinating to flush reef fish from crevices with a precision and energy that belies their lazy daytime demeanour.

Evidence at this site

1 record within 25 km

Confidence: low

Seasonality

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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