Scuba Season
Critically Endangered· population decreasing· assessed 2019

Scalloped hammerhead shark

Sphyrna lewini

Sighting evidence at Rawaki Seamount

Scalloped hammerhead shark

Photo: Kris Mikael Krister · CC BY

Scalloped hammerheads school at seamounts and offshore pinnacles for social and cleaning behaviour. Globally endangered from overfishing and bycatch. Their presence at Rawaki is documented only in research expedition records — sightings are not guaranteed.

Evidence at this site

No confirmed records on file at this site

Scalloped hammerhead 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