Scuba Season

Blacktip Reef Shark

Carcharhinus melanopterus

Sighting evidence at Renggis Island, Tioman Island

Blacktip Reef Shark

Photo: Amanda Roe · CC BY-NC

Blacktip reef sharks are apex predators that regulate reef fish populations and maintain ecosystem balance on Tioman's reefs. They are most active at dawn and dusk, patrolling the sandy flats and channel margins around Renggis in groups of two to five individuals. Their presence indicates a healthy, well-functioning reef ecosystem within the marine park boundary.

Evidence at this site

13 records within 25 km

Confidence: medium

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