Scuba Season
Vulnerable· population decreasing· assessed 2020

Blacktip reef shark

Carcharhinus melanopterus

Sighting evidence at Swallows Cave Vavau, Vava'u, Tonga

Blacktip reef shark

Photo: Florent Pouzet · CC BY-NC-ND

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